RECTANGULAR WAVEGUIDE TABLE OF CONTENTS

Transcription

1 RECTANGULAR WAVEGUIDE TABLE OF CONTENTS No. B00a SERIES RECTANGULAR WAVEGUIDE PRODUCTS Standard rectangular waveguide T0 - Rectangular Flange Stock T - Rectangular Waveguide & Flanges T7C -3 Waveguide Straights, E, H-bends, Twists 0, 0, 30, 50 T6E -4 Waveguide to Waveguide Transitions, 30 T37C -6 Waveguide to coaxial adapters, Standard 40 T6F -7 Special Waveguide to coaxial adapters 40 T5D -8 ISO-Adapters i40 T96-9 End-Launch Adapters E40 T9D -0 Low Frequency Waveguide to coaxial adapters WX T88A - Power Combinder/Divider LA00-07 T53 - Power Sampler, 50 T47D -3 Attenuators, Miniature Pads 60 T77B -4 Waveguide Variable Attenuators 60V T50-5 Matched Terminations, & Dummy Loads 80 T73A -6 Cross-Guide Coupler 90 T3E - Magic Tees & Hybrids 00 T39C -4 High directivity Couplers 60 & 00 T3D -5 Quartz Vacuum Windows 70 T75-6 Pressure Windows 70 T87A -7 Sliding Shorts, Mismatches 80LSC T6B -8 Sidewall Couplers 500 T7C -9 Super High Power in Phase Divider S00E-5 T49-30 High Power Components B0a -3 Page No. - 0 Data subject to change without notice

2 STANDARD RECTANGULAR WAVEGUIDE No. T0 Waveguide Size Europe And USA Internal Dimensions Ax B External Dimensions C x D Wall Thickness Internal Surface Finish (Ra) R Wg Wr mm tol.t inches tol.± mm tol.± Inches tol.± mm Inch µ meter x x x x x x x x A x x x x x x x x A x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x µ inches Length: 3050 mm (Other upon request) Alloy: 6063 (Other upon request) Straightness and twist: DIN 765 Availability form stock ensures a swift delivery worldwide - Data subject to change without notice

3 RECTANGULAR FLANGE STOCK No. T Waveguide Size Dimensions µ inch/µ m 4 places WR A B C K FF GG JJ Ra delta min min max ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± Ø 8.6 Ø Ø R0.5 R6.35 R0.5 R6.35 R0.5 R X45 5X X45 3.5X45 0.3X45 3.5X45 0.3X45 3.5X45 R0.56 R4.5 R0.56 R4.5 R0.46 R.70 Length: 000 mm (Other upon request) Alloy: 6063 (Other upon request) Straightness ad twist: DIN: Data subject to change without notice

4 RECTANGULAR WAVEGUIDE AND FLANGES No. T7C MEC DESIG- NATION WAVEGUIDE FREQUENCY RANGE (GHz) EIA DESIG- NATION INNER DIMENSIONS (INCHES) MIL DESIGNATIONS COVER CHOKE CONTACT FLANGES MIL & EIA DESIGNATIONS PRESSURIZED CONTACT UNPRESSURIZED CONTACT GROOVED FLAT UG()/U M39/( )-( ) UG()/U M39/( )-( ) UG()/U M39/( )-( ) UG()/U M39/( )-( ) UG()/U UG()/U M39/( )-( ) CPR()G UG()/U M39/( )-( ) CPR()F MATERIAL ALLOY L..70 WR x B 47B LM.45.0 WR x LA WR x B 435B LS WR x B 553B S WR x A 54B SA M85/4-07 M85/ x S M85/4-007 M85/ x B WR9.90 x G WR87.87 x A B 48C D WR x * J WR37.37 x B 343B J M85/4-008 M85/ x H WR. x B 5B H ½ Ht. WR. x 0.49 ½ Ht 38 W WR0.00 x W ½ Ht. WR0.00 x X 8..4 WR x B 40B M WR x WR75* WR75* WR75* WR75* P WR6 0.6 x A N WR x 0.55 WR5* WR5* WR5* WR5* K WR x A 596A Y WR x A WR x A * No MIL designation ** Most Cover Flanges as listed above are THRU type. However, BUTT type will be supplied unless otherwise specified. Contact mec for further information. - 3 Data subject to change without notice

5 RECTANGULAR WAVEGUIDE STRAIGHT SECTIONS, BENDS AND TWISTS 0 / 0 / 30 / 50 SERIES No. T6E of LOW VSWR LOW INSERTION LOSS PRECISION FABRICATION MEC s Straight Sections of Rectangular Waveguide are useful for field and laboratory applications where lowest loss and VSWR are required. The waveguide conforms to MIL-W-85. Straight Sections can be supplied up to feet long. Bends and Twists may be used alone or in combination for systems packaging. Straights, Bends and Twists are normally supplied with UG cover flanges; however choke, CPR, CMR and other flanges may be requested. VSWR of Standard Waveguide models is.03 typical,.05 max. over the full waveguide band while insertion loss is essentially that of straight waveguide. Units are available in aluminum or copper. Finish is chromate conversion per MIL-C-554, Class 3 for aluminum and corrosionresistant coatings for all others, painted with gray enamel. STRAIGHT E PLANE H PLANE FREQUENCY WAVEGUIDE TWIST SECTION BEND BEND (GHz) SIZE MODEL NO. MODEL NO. A MODEL NO. A MODEL NO. A MATERIAL STANDARD WAVEGUIDE.0.45 WR770 E0 E0 4.0 E E50 A..70 WR650 L0 L0 5.0 L L A.45.0 WR50 LM0 LM0 5.0 LM LM A WR430 LA0 LA0 5.0 LA LA A WR340 LS0 LS0.0 LS30.0 LS A WR84 S0 S S S50.0 A,C WR9 B0 B B B50.0 A,C WR87 G0 G G G A,C WR59 D0 D0 4.5 D D A,C WR37 J0 J0.38 J30.75 J A,C WR H0 H0.50 H30.63 H A,C WR0 W0 W0.3 W30.63 W A,C 8..4 WR90 X0 X0.50 X30.69 X A,C WR75 M0 M0.50 M30.69 M A,C WR6 P0 P0.69 P30.84 P A,C WR5 N0 N0.50 N30.50 N A,C WR4 K0 K0.50 K30.50 K A,C WR34 Y0 Y0.50 Y30.50 Y A,C WR8 A0 A0.38 A30.44 A A,C REDUCED HEIGHT M85/4-00 S-0 S-0* 5.00 S-50*.0 C M85/4 003 J-0 J-0.38 J-50* 8.0 C MEC FLATGUIDE (F750)M85/4 003 F0 F F F A (F700)M85/4-09,-07 F F F3 4.5 F A,C (F400)M85/4-03 F F.50 F F A *VSWR VSWR<.08 VSWR<. - 4 Data subject to change without notice

6 RECTANGULAR WAVEGUIDE STRAIGHT SECTIONS, BENDS AND TWISTS 0 / 0 / 30 / 50 SERIES No. T6E of 0 SERIES E BEND 50 SERIES TWIST 30 SERIES H BEND ORDERING INFORMATION () For 0 Series STRAIGHT SECTIONS, add suffixes to model number as follows: (a) LENGTH: Specify face-to-face length in inches. (b) MATERIAL: A for Aluminum; C for Copper (c) FLANGES: for Cover; for Choke; 3 for CMR; 4 for CPRF, 5 for CPRG, 6 for U/G Gasket, no choke tapped holes. See Data Sheet T5C for Reduced Height & MEC FLATGUIDE Flanges. () For Series 0/30 BENDS and Series 50 TWISTS, add suffixes to model numbers as follows: (a) ANGLE: Suffix desired angle in degrees if other than 90. (b) MATERIAL: A for Aluminum; C for Copper. (c) FLANGES: Cover flanges are standard. For others, specify as above. (3) Coin silver available above 8 GHz on request. (4) Heavy Wall and Extra Heavy Wall small radius copper bends also available: e.g. WR90 H Bend with A dimension =.50 and wall thickness = (5) Mitered Bends are available to provide even shorter A dimensions: e.g. X0-M and X30-M have leg lengths of only.0. Specify M for mitered bends. (6) Other sizes, configurations and combinations available on request. MEC has one of the largest waveguide facilities to satisfy unique customer requirements. See Data Sheet B0C. - 5 Data subject to change without notice

7 RECTANGULAR WAVEGUIDE TRANSITIONS 30 SERIES No. T37C LOWEST VSWR SHORT LENGTH MEC precision fabricated 30 Series Transitions have been designed to connect different size waveguide components in a minimum of space while maintaining a VSWR of.04 or less in those cases where the frequency bands overlap. Standard units are furnished in aluminum with cover or contact flanges. Finish is chromate conversion per MIL-C554, Class 3, painted with gray epoxy enamel on external non-mating surfaces. ORDERING INFORMATION FREQUENCY BAND FREQUENCY RANGE (GHz) WAVEGUIDE SIZE EQUIVALENT FLANGE FREQUENCY BAND FREQUENCY RANGE (GH:) WAVEGUIDE SIZE EQUIVALENT FLANGE L WR-650 UG-488/U H WR- UG-38/U LM WR-50 UG-77/U W WR-0 UG-493/U* LA WR-430 UG-4378/U X WR-90 UG-35/U LS WR-340 UG-554A/U M WR-75 WR-75 S WR-84 UG-584/U P WR-6 UG-665/U B WR-9 CMR-9 N WR-5 WR-5 G WR-87 UG-407/U K WR-4 UG-597/U D WR-59 CMR-59 Y WR-34 UG-530/U* J WR-37 UG-44 /U A WR-8 UG-599/U* *Aluminum ) To formulate model number, select desired lower frequency band from above table and add as prefix to series No. "30". Then select higher frequency band and add as suffix to designate the two waveguide sizes to be interconnected by the transition. Also specify actual frequency range and VSWR desired. EXAMPLES: X30-M specifies a WR-90 to WR-75 transition. W30-P specifies a WR-0 to WR-6 transition. ) Special sizes, configurations, and combinations are available on request, as well as other flanges (e.g. UG choke, CPR, CMR). 3) Custom designed step transitions available on special request. 4) Transitions to circular waveguide also available. - 6 Data subject to change without notice

8 STANDARD RECTANGULAR WAVEGUIDE-TO-COAXIAL ADAPTERS 40 SERIES No. T6F LOWEST VSWR,.04 MAXIMUM LOW INSERTION LOSS COMPLETE LINE GHz The 40 Series Adapters allow transmission of power between waveguide and coax in either direction with very low reflection. This is achieved by using broadband matching techniques. VSWR over the full band is.04 max. for most models, or as limited by the coaxial connector used. High power adapters can be make up to the power rating of the connector requested. Custom designs for fractional and broad band, in-line, half height or other specials are available. Assemblies are furnished with an aluminum housing. Finish is chromate conversion per MIL-C-554, Class 3, painted with gray epoxy enamel. MODEL NO. FREQUENCY RANGE (GHz) WAVEGUIDE SIZE EQUIPMENT DIMENSIONS (IN.) FLANGE A. MAX B ±.03 STANDARD ADAPTERS E WR-770 WR L WR-650 UG-48B/U LM WR-50 UG-77/U LA WR-430 UG-437B/U LS WR-340 UG-554A/U.65.6 S WR-84 UG-584/U B WR-9 CMR G WR-87 UG-44/U.00.3 D WR-59 CMR J WR-37 UG-44/U H WR- UG-38/U W WR-0 M39/ X WR-90 UG-35/U.0.63 M40* WR-75 M39/ P40* WR-6 UG-665/U.0.68 N WR-5 M39/ K WR-4 UG-597/U Y WR-34 M39/ A WR-8 UG-599/U T WR- UG-303/U *TNC VSWR. to 6 GHz & +SMA VSWR ƒ (GHz) to 6 GHz.6 for-4. from 6 to 8 GHz SSMA VSWR ƒ(ghz)to 40 GHz.47 for-7 Brass Aluminum ORDERING INFORMATION () SEE CONNECTOR CHARE () VSWR Maximum: A for.04 B for.06 C for.0 P (see High Power Option) (3) HIGH POWER Option: -P for high average power determined by connector as follows: VSWR SC to 8. GHz - 800w..0 max. N to 8. GHz 600 W. Derate Linearly to 300 W at 8 GHz.5 typ. TNC to 8 GHz 00 W. SMA to 8 GHz 50 W. (4) FRACTIONAL BANDWIDTH: L for lower half M for middle half H for upper half EXAMPLE: Model x40-7al=wr90 to 7 mm coaxial adapter with VSWR of.04 max. over the frequency range GHz. - 7 Data subject to change without notice

9 SPECIAL RECTANGULAR WAVEGUIDE- TO-COAXIAL ADAPTERS 40 SERIES - SPECIALS No. T5D LOWEST VSWR LOW INSERTION LOSS NARROW AND BROAD BANDWIDTHS MEC offers a wide range of Adapters for specialized applications requiring non-standard rectangular waveguides and/or frequency bands. They allow transmission of power in either direction with the lowest possible reflection. This is achieved by using broadband matching techniques. High power adapters are available up to the power rating of the connector requested. Requirements for other bands, waveguide heights and in-line adapters can also be satisfied. Assemblies are furnished with an aluminum housing. Finish is chromate conversion per MIL-C-554, Class3, painted with gray epoxy enamel. MODEL NO. FREQUENCY WAVEGUIDE RANGE (GHz) SIZE I.D. (INCHES) EQUIVALENT DIMESIONS (IN.) FLANGE A.MAX B ±.03 MAXIMUM VSWR STANDARD WAVEGUIDE COMMUNICATIONS AND NARROW BAND B40M WR-9.90 x.45 CMR A for 0 D40M WR x CMR J40L WR x 0.6 CMR B for.05 H40L WR-. x CMR X40L WR x CMR C for.0 M40L WR x M39/ N40L WR x 0.55 M39/ P for.0 STANDARD WAVEGUIDE EXTENDED FREQUENCY BAND S WR x.340 UG-584/U A for.0 D WR x CMR B for.0 X WR x UG-35/U.0.63 P for.30 P WR x 0.3 UG-665/U.0.68 REDUCED HEIGHT FULL FREQUENCY BAND S M85/ x M39/ J M85/ x M39/ H M85/4-03. x 0.49 M39/ W M85/ x 0.55 M39/ A for.04 B for.06 C for.0 D for.0 P for.30 REDUCED HEIGHT EXTENDED FREQUENCY BAND S M85/ x.004 M39/ A for.5 J M85/ x M39/ P for.30 MEC FLATGUIDE F (F750)M85/ x 0.3 (F750C)M39/ A for.5 F (F700)M85/ x 0.30 (F700C)M39/ A for.5 F (F400)M85/ x (F400C)M39/75/ A for.5.6 for 4 ORDERING INFORMATION Add suffixes to model number as follows:. SEE CONNECTOR CHART. VSWR: A, B, C, D or P (High Power Option) 3. HIGH POWER OPTIONS: -P (see Data Sheet T6E for connectors & power levels) P for.30-8 Data subject to change without notice

10 RECTANGULAR WAVEGUIDE ISO ADAPTERS i40 SERIES No.T96 LOW VSWR HIGH ISOLATION FULL BAND WIDTH MEC is pleased to offer a complete line of Rectangular Waveguide ISO adapters. These adapters are offered in all common waveguide sizes and can be used to isolate signals from either the coaxial or waveguide transmission line. Typical models are similar in size to MEC 40 Series adapters and have an SMA female Coax connector. The i40 Series ISO adapters are available in full band or an optimized narrow band. Contact factory for your specific requirements. MODEL NO. FREQUENCY RANGE WAVEGUIDE SIZE ISOLATION* FULL BAND VSWR IL Li WR650 0 db typical 7 db min.: max 0.5 db max LMi WR50 0 db typical 7 db min.: max 0.5 db max LAi WR430 0 db typical 7 db min.: max 0.5 db max LSi WR340 0 db typical 7 db min.: max 0.5 db max Si WR84 0 db typical 7 db min.: max 0.5 db max Bi WR9 0 db typical 7 db min.: max 0.5 db max Gi WR87 0 db typical 7 db min.: max 0.5 db max Di WR59 0 db typical 7 db min.: max 0.5 db max Ji WR37 0 db typical 7 db min.: max 0.5 db max Hi WR 0 db typical 7 db min.: max 0.5 db max Wi WR0 0 db typical 7 db min.: max 0.5 db max Xi WR90 0 db typical 7 db min.: max 0.5 db max Mi WR75 0 db typical 7 db min.: max 0.6 db max Pi WR6 0 db typical 7 db min.: max 0.6 db max ORDERING INFORMATION ) SPECIFY Waveguide size ) DEFINE Frequency Band 3) SPECIFY COAX OUTPUT if other than SMA female is required. COVER FLANGES ARE STANDARD *SPECIFY Direction of Isolation - 9 Data subject to change without notice

11 RECTANGULAR WAVEGUIDE TO COAX END LAUNCH ADAPTERS E40 SERIES No. T9D FULL BAND LOW VSWR HIGH POWER MEC state-of-the-art End Launch adapters fulfill the need for inline units with broadband capability. Their unique design achieves low profile with short length, low loss and VSWR. Of special significance is the inherent ability of these units to operate over the full W/G band at high power levels, making them ideal for EW/ECM applications where transmission line routing is at a premium. MODEL NO. FREQUENCY (GHz) WAVEGUIDE SIZE VSWR (MAX) BODY LENGTH (IN.) SE WR BE WR 9. 7 GE WR DE WR JE WR HE WR. 3.5 HE ½ height WR. 3.0 XE WR ME WR PE WR KE WR AE WR CONNECTOR SPECIFICATION INFORMATION CONNECTOR TYPE FEMALE SUFFIX MALE SUFFIX MAX FREQUENCY (GHz) POWER (W) AT MAX FREQUENCY SC -SC -SCM TNC -TM -TM N -NM -NM SMA -3M -3M 6 50 APC * For other connectors and details, refer to Data Sheet T00 ORDERING () Select Model number based on band required () To specify connector, add suffixes to model number form table. Also note max. frequency and power limits shown. (3) To specify pressure port, add suffix P. (4) Other frequency bands, mounting provisions, and package arraignments available upon request EXAMPLE: HD40-N is the Model number for the half height WR end Launch adapter with type N connector, over all length is 3.5 inches. - 0 Data subject to change without notice

12 COAXIAL TO WAVEGUIDE TRANSITIONS WX SERIES No.T88A WIDE RANGE OF CONNECTORS LOW VSWR COAXIAL PART NUMBER SIZE WR 800 WR 500 WR 50 WR 975 A 7/8-50 OHM WX80-XXX WX50-XXX WX0-XXX WX90-XXX /8-50 OHM WX80-XXX WX50-XXX WX0-XXX WX90-XXX /8-50 OHM WX830-XXX WX530-XXX WX30-XXX WX930-XXX /6-50 OHM WX840-XXX WX540-XXX WX40-XXX WX940-XXX /8-50 OHM WX860-XXX WX560-XXX WX60-XXX WX960-XXX /8-50 OHM WX865-XXX WX565-XXX WX65-XXX WX965-XXX /6-50 OHM WX885-XXX WX585-XXX WX85-XXX /6-50 OHM WX890-XXX WX590-XXX /6-50 OHM WX895-XXX WX595-XXX.00 B XXX DESIGNATES CENTER FREQUENCY MHz OXX DESIGNATES TV CHANNEL POWER HANDLING: VSWR: COAXIAL PORT: MATERIAL: FINISH: Compatibility to coaxial line.035: for any % band.0: for any 0% band will mate with EIA female outer 606-T6 aluminum inner copper-silver plated brass outer 606-T6 aluminum (chromate conversion) - Data subject to change without notice

13 POWER COMBINER/DIVIDER (LA00-07) No. T53 HIGH POWER LOW LOSS RUGGED CONSTRUCTION MEC model LA00-07 is an S-Band (WR430) 4 horn combiner/divider used for satellite up-link communications. This design features an input magic tee with integral high power load, waveguide plumbing with fabricated E and H bends, two output tees with integral H-bends on co-linear arms and high power loads. There are 4 in phase outputs. The complete assembly is mounted on a common flange. Contact MEC with your specific requirements. Our engineering staff will be glad to discuss your needs. : Model Number Frequency Power Insertion Loss LA00-07 transmit GHz receive GHz, 3 KW CW <0.5 db VSWR <.: Phase balance Amplitude balance Input/Output Ports +/- deg +/- 0. db WR430 - Data subject to change without notice

14 RECTANGULAR WAVEGUIDE POWER SAMPLERS 50 SERIES No. T47D FLAT COUPLING FULL WAVEGUIDE BAND LOWEST VSWR,.0 TYPICAL MEC Power Samplers provide an economical non-directional means of monitoring the power in a matched waveguide system. The units are available with coupling values of 30 to 60 db and frequency sensitivity of ±.0 db maximum (± 0.5 db typical) over the full bandwidth. Main line VSWR is.04 maximum. The sampling port is normally supplied with type N, SMA, or 7mm output connectors. Other types and coupling levels are available upon request. Cover flanges are provided on the main line unless otherwise specified. Assemblies have aluminum housings with chromate conversion per MIL-C-554, Class 3, painted with gray epoxy enamel on external non-mating surfaces. MODEL NO. FREQUENCY RANGE (GHz) WAVEGUIDE SIZE DIM. A (INCHES) MODEL NO. FREQUENCY RANGE (GHz) WAVEGUIDE SIZE DIM. A (INCHES) E WR H WR-.00 L WR W WR-0.00 LM WR X WR LA WR M WR LS WR P WR-6.00 S WR N WR-5.00 B WR-9.00 K50** WR-4.00 G WR Y50* WR D WR A50* WR-8.00 J WR ORDERING INFORMATION () Add the following suffixes to model number to specify coupling and connector: (a) COUPLING: -30 for 30 db -40 for 40 db -50 for 50 db -60 for 60dB * Available Only with SSMA Connector, K-Connector or.4mm ** Available With SMA up to 6.0 GHz. SSMA, K-Conn., or.4>6ghz P50( )-3 length is.00 (b) CONNECTOR: N for type N female 3 for SMA female 7 for precision 7mm* EXAMPLE: X50-43 is a WR-90 Waveguide 40dB sampler shown with SMA Female Connector. () Units above 7 GHz are also available in the flange sampler shown at right with tapped holes. Specify 50S. Length (A) is 0.75 for type N and 0.55 for SMA. EXAMPLE: X50S-40-3 *Refer to Data Sheet T00 for a complete list of available connectors - 3 Data subject to change without notice

15 MINIATURE ATTENUATOR PADS 60 S SERIES No. T77B FULL WAVEGUIDE BAND ULTRA-FLAT FREQUENCY RESPONSE VERY LOW VSWR MINIATURE (FLANGE SIZE) MEC s Miniature Attenuator Pads feature ultra-flat frequency response and very low VSWR in extremely short flange-size packages. Typical attenuation flatness over the full waveguide band is ±0. db (±0.3 db max.) with typical VSWR of.0 (.5 max.). These minimal-size units are available in db steps from to 0 db and are ideal for inclusion in systems where length is critical. Housing is aluminum with chromate conversion and gray epoxy enamel finish. MODEL NO. FREQUENCY (GHz) WAVEGUIDE SIZE EQUIVALENT FLANGE INSERTION LENGTH* (IN. MAX.) H60 S WR UG-38/U.5 W60 S WR0 M39/ X60 S 8..4 WR90 UG-35/U.5 M60 S WR75 M39/ P60 S WR6 UG-665/U.75 K60 S WR4 UG-597/U.50 A60 S WR8 UG-599/U.375 Aluminum *Length longer if more than 6 db ORDERING INFORMATION () To specify desired attenuation, add suffix to model number. EXAMPLE: A60 S-3 specifies a 3 db attenuator in WR8 waveguide operating from 6.5 to 40.0 GHz. () Special values of attenuation and other waveguide sizes are available on request. - 4 Data subject to change without notice

16 WAVEGUIDE VARIABLE ATTENUATORS 60V Series No. T50 BROAD ATTENUATION RANGE LOW LOSS LOW VSWR FULL BAND MEC's 60V series of waveguide variable attenuators are available in attenuation ranges of 0-40 db. Narrow or broad band versions may be ordered. Full band flatness is as low as ± 0.5 db from 0-0 db attenuation and ± 0.7 db from 0-0 db attenuation. Full band flatness degrades at higher attenuation levels, however narrower bandwidths can hold ± 0.5 db flatness up to 40 db attenuation. Calibrated vernier drives are available upon request. A locking screw is standard on the drive mechanism. These components may be converted from variable to a fixed version by simply switching the attenuator block. Our high precision machining guarantees unit to unit repeatability within 0. db. The table below is a representative sample of MEC s available designs of variable attenuators. Contact MEC with your specific requirements. Our engineering staff will be glad to discuss your needs. MODEL NUMBER W/G SIZE FREQ. (GHz) ATTENUATION (db) FLATNESS (db) VSWR INSERTION LOSS (db) A (Inches) B (Inches) X60-V WR db Atten. 0-0 db Atten. ±.0 ± 3.0.: 0. Max db Atten. ± 0.5 P60-8 WR db Atten db Atten. ± 0.7 ±.0.: 0. Max 3.9. Y60-V WR db Atten. 0-0 db Atten. ± 0.5 ± 0.7.: 0. Max Data subject to change without notice

17 RECTANGULAR WAVEGUIDE TERMINATIONS 80 SERIES No.T73A OF 6 Microwave Engineering Corporation s extensive line of rectangular waveguide terminations supplies world-wide needs from to 50 GHz. The following pages describe our standard product line and a few of our many specials. Other terminations can be readily supplied to satisfy your unique requirements. We re as near as your phone. - 6 Data subject to change without notice

18 RECTANGULAR WAVEGUIDE TERMINATIONS 80 SERIES No.T73A OF 6 LOW POWER MATCHED TERMINATIONS LOW VSWR FULL BANDWIDTH LIGHTWEIGHT COMPACT MEC Rectangular Waveguide Standard Length 80-L, Ultra-short 80-LU, Communications and Narrow Band 80-LA Terminations consists of precision aluminum waveguide containing rugged material especially selected and designed to absorb incident power with very low reflection. These units are ideal for laboratory and field measurements and production setups requiring high quality terminations. Additional features are short length and light weight. Typical applications include VSWR measurement of waveguide components, low power dummy antennas and matched terminations for directional couplers, hybrids and other devices. All units have a Chemical Film finish per MIL-C-554, Class 3, followed by gray epoxy enamel. A power sampling probe can be supplied as a separate unit with any of the terminations. Typical flatness is ± 0.5 db across the entire band for sampling levels from 30 to 50 db. MODEL NO FREQUENCY RANGE (GHz) WAVEGUIDE SIZE EQUIVALENT FLANGE MAX. AV. PWR. (WATTS) VSWR (MAX.) LENGTH (IN. MAX.) STANDARD LENGTH L80-L.-.70 WR-650 UG-48B/U LM80-L WR-50 UG-77/U LA80-L WR-430 UG-437B/U LS80-L WR-340 UG-554A/U S80-L WR-84 UG-584/U 5.05 S-80-L RG-09/U M39/ B80-L WR-9 CMR G80-L WR-87 UG-407/U D80-L WR-59 CMR J80-L WR-37 UG-44/U J-80-L RG-0/U M39/ H80-L WR- UG-38/U.0 5 W80-L WR-0 M39/ X80-L WR-90 UG-35/U.0 4 M80-L WR-75 M39/ P80-L WR-6 UG-665/U N80-L WR-5 M39/ K80-L WR-4 UG-597/U Y80-L WR-34 M39/ A80-L WR-8 UG-599/U*.03 3 T80-L WR- UG-383/U*.05 3 ULTRA-SHORT S80-LU WR-84 UG-584/U S-80-LU RG-09/U M39/ B80-LU WR-9 CMR G80-LU WR-87 UG-407/U D80-LU WR-59 CMR J80-LU WR-37 UG-44/U J-80-LU RG-0/U M39/ H80-LU WR- UG-38/U W80-LU WR-0 M39/ X80-LU 8.-*.4 WR-90 UG-35/U.05.5 M80-LU WR-75 M39/ P80-LU WR-6 UG-665/U N80-LU WR-5 M39/ K80-LU WR-4 UG-597/U Y80-LU WR-34 M39/ A80-LU WR-8 UG-599/U*.0.5 T80-LU WR- UG-383/U.0.5 COMMUNICATIONS AND NARROW BAND B80-LAM WR-9 CMR D80-LAM WR-59 CMR J80-LAL WR-37 UG-44/U 3 3 H80-LAL WR- UG-38/U.0.5 X80-LAL WR-90 UG-35/U.5 M80-LAL WR-75 M39/ N80-LAL WR-5 M39/ ORDERING INFORMATION () For Power Sampling, add suffix PS to model number and specify sampling level (from 30 to 50 db) desired. () Half-height terminations, other frequency ranges, other flanges, and unique mounting arrangements also available. (3) 80-LU Series also available from.60 through 50 GHz with smaller bandwidth and improved VSWR. Add suffix L M, or H for low, middle, or high half of band. 80-LU 80-LA 80-L - 7 Data subject to change without notice

19 RECTANGULAR WAVEGUIDE TERMINATIONS 80 SERIES No.T73A 3 OF 6 MEDIUM POWER & SLIDING TERMINATIONS LOW VSWR ADJUSTABLE PHASE L max S 80-LS Sliding Terminations consist of a well-matched, tapered sliding load in a precision aluminum waveguide housing. The load can be moved over more than one-half wavelength at the lowest frequency. Optional micrometer drive is available for band H through A. Applications include simulating a perfect termination for precise measurement of VSWR, impedance, directivity or isolation. By reversing the phase of the sliding termination it is possible to subtract it from other small reflections in the system under test. 80-M Medium Power Terminations are convection-cooled and similar to the low power series, but designed to handle higher power levels. Features include low VSWR and light weight. Typical applications include system or test bench set-ups and as moderate power dummy loads. Both series are available with optional sampling probes supplied as separate units from 30 to 50 db with typical flatness of ± 0.5 db. Finish is Chemical Film per MIL-C-554, Class 3, followed by gray epoxy enamel for the sliding loads and black enamel for the medium power termination. MODEL NO. FREQUENCY RANGE (GHz) WAVEGUIDE SIZE EQUIVALENT FLANGE MAX. AV. PWR. (WATTS) VSWR (MAX.) LENGTH (IN. MAX.) SLIDING TERMINATIONS L80-LS.-.70 WR-650 UG-48B/U LM80-LS WR-50 UG-77/U LA80-LS WR-430 UG-437B/U LS80-LS WR-340 UG-554A/U A80-LS WR-84 UG-584/U S-80-LS RG-09/U M39/ B80-LS WR-9 CMR G80-LS WR-87 UG-407/U D80-LS WR-59 CMR J80-LS WR-37 UG-44/U J-80-LS RG-0/U M39/ H80-LS WR- UG-38/U.0 W80-LS WR-0 M39/ X80-LS WR-90 UG-35/U.0 9 M80-LS WR-75 M39/ P80-LS WR-6 UG-665/U N80-LS WR-5 M39/ K80-LS WR-4 UG-597/U Y80-LS WR-34 M39/ A80-LS WR-8 UG-599/U*.03 5 MEDIUM POWER TERMINATIONS L80-M.-.70 WR-650 UG-48B/U LM80-M WR-50 UG-77/U LA80-M WR-430 UG-437B/U LS80-M WR-340 UG-554A/U S80-M WR-84 UG-584/U S-80-M RG-09/U M39/ B80-M WR-9 CMR G80-M WR-87 UG-407/U 50 4 D80-M WR-59 CMR J80-M WR-37 UG-44/U J-80-M RG-0/U M39/ H80-M WR- UG-38/U 50 W80-M WR-0 M39/ X80-M WR-90 UG-35/U 50 M80-M WR-75 M39/ P80-M WR-6 UG-665/U N80-M WR-5 M39/ K80-M WR-4 UG-597/U Y80-M WR-34 M39/ A80-M WR-8 UG-599/U* 5 ORDERING INFORMATION Add suffix PS to model number for Power Sampling and specify level (30 to 50 db). Customized mounting, half-height models, other flanges and frequencies available on request. 7.5 *Aluminum - 8 Data subject to change without notice

20 RECTANGULAR WAVEGUIDE TERMINATIONS 80 SERIES No.T73A 4 OF 6 HIGH POWER & EXTRA HIGH POWER TERMINATIONS CONVECTION COOLING FAN COOLED MEC Rectangular Waveguide High Power 80-H and Extra High Power 80- E Terminations are constructed of finned aluminum waveguide containing high temperature absorbing material in intimate contact with the waveguide walls for good heat transfer. Standard units of,000 W or less are cooled by free air convection; for ratings greater then,000 W, forced air must be used. For higher powers, shorter lengths, or lower temperature rise, an integrally mounted fan and ducted housing may be supplied to provide forced air cooling. VSWR is.05 max for operation over the full waveguide frequency band for 80-H series and.06 max for 80-E series. Designed to withstand conditions of extreme temperature and thermal shock, these terminations are ideal for us in high power systems as dummy antennas to permit testing, tuning, and maintenance without radiating RF power. Finish is Chemical Film per MIL-C-554, Class 3 followed by high temperature black epoxy enamel. A power sampling probe can be supplied as a separate unit to monitor power. Typical sampling flatness is ± 0.5 db across the entire band for levels from 30 to 50 db. MAXIMUM POWER MODEL NO. FREQUENCY WAVEGUIDE EQUIVALENT AVERAGE PEAK (KW) LENGTH RANGE (GHz) SIZE FLANGE 30 PSIG (IN. MAX) 80-H 80-E DRY AIR L80-H, L80-E.-.70 WR-650 UG-48B/U,000,500 0, LM80-H, LM80-E WR-50 UG-77/U,000,500 5, LA80-H, LA80-E WR-430 UG-437B/U,000,500 0, LS80-H, LS80-E WR-340 UG-554A/U,000,500 7, S80-H, S80-E WR-84 UG-584/U,000,500 4, S-80-H, S-80-E RG-09/U M39/75-0,000,500,000 B80-H, B80-E WR-9 CPR-9F,000,500 3, G80-H, G80-E WR-87 UG-407/U,000,500,800 4 D80-H, D80-E WR-59 CPR-59F,000,500,000 4 J80-H, J80-E WR-37 CPR-37F,000,500,000 0 J80-H*, J80-E* WR-37 CPR-37F,000,500,000 4 J-80H, J-80-E RG-0/U M39/ , H80-H, H80-E WR- UG-38/U 500, W80-H, W80-E WR-0 M39/ , X80-H, X80-E WR-90 UG-35/U 500, M80-H, M80-E WR-75 M39/ P80-H, P80-E WR-6 UG-665/U N80-H, N80-E WR-5 M39/ K80-H, K80-E WR-4 UG-597/U Y80-H, Y80-E WR-34 M39/ A80-H, A80-E WR-8 UG-599/U** Notes: () For ratings greater than,000 W, forced air must be used () VSWR on all units is.05 max., 3 *Narrow band (4) Pressurized units are supplied on special request (5) **Aluminum ORDERING INFORMATION () Order by Model No, and specify actual frequency range, VSWR and pressurization required. () Add suffix PS to Model No. for Power Sampling and specify level (30 to 50 db). (3) For Integral Forced Air cooling, contact MEC. (4) Half-height terminations, unique mounting arrangements, other flanges and frequencies available on request. 80-H 80-E Integral Forced Air Cooling - 9 Data subject to change without notice

21 RECTANGULAR WAVEGUIDE TERMINATIONS 80 SERIES No.T73A 5 OF 6 LIQUID COOLED TERMINATIONS LOW VSWR GREATEST HEAT TRANSFER MEC s 80-W Series of Rectangular Waveguide Liquid Cooled Terminations operate with VSWR of.05 max. Thirteen models cover the full waveguide frequency bands from.60 to 40.0 GHz As dummy loads they ideally meet the demands of today s extremely high-powered systems to permit operational check-out without radiating RF power. Construction utilizes high-temperature absorbing material in intimate contact with the waveguide walls for good heat transfer. All units are designed to operate in any position with a coolant inlet pressure of 00 psig (max.) and temperature of 50º F (max.). Units are aluminum with MS33656E4 ¼ flared tube fittings for the liquid coolant connections. Finish is Chemical Film per MIL-C-554, Class 3, followed by high-temperature black epoxy enamel. A power sampling probe can be supplied as a separate unit to monitor power. Typical sampling flatness is ± 0.5 db across the entire band for levels from 30 to 50 db. MODEL NO. FREQUENCY RANGE (GHz) WAVGUIDE SIZE EQUIVALENT FLANGE MAXIMUM POWER AVERAGE (WATTS) PEAK 30 PSIG DRY AIR MINIMUM FLOW RATE (GPM) LENGTH (IN. MAX) S80-W WR-84 UG-584/U 5,000 4, B80-W WR-9 CPR-9F 5,000 3, G80-W WR-87 UG-407/U 0,000, D80-W WR-59 CPR-59F 0,000, J80-W WR-37 CPR-37F 5,000, H80-W WR- UG-38/U 4, W80-W WR-0 M39/ , X80-W WR-90 UG-35/U 3, M80-W WR-75 M39/ , P80-W WR-6 UG-665/U, N80-W WR-5 M39/70-0, K80-W WR-4 UG-597/U, A80-W WR-8 UG-599/U* Pressurized units are supplied on special request. *Aluminum VSWR:.05 max. The flow rate is determined from the following formula. COOLANT: Typical demineralized water or Coolant. 6.8P Where: Q= Minimum flow rate in GPM Max. inlet temperature: 50 F. Q= Cp T P = Max. CW power in Kilowatts. Max. inlet pressure: 00 psig Cp = Specific heat of coolant T = Coolant temperature rise in F. The tabularized values are for Cp = for water and a T of 0 F. For different coolants, temperature rises, or power levels, a different flow rate would be necessary ORDERING INFORMATIONS () Order by Model No, and specify actual frequency range, VSWR and internal waveguide pressurization required. () Add suffix PS to Model No. for Power Sampling and specify level (30 to 50 db). (3) Half-height terminations, other frequency ranges, flange, coolant fittings and pressures, unique mounting arrangements quoted on request. - 0 Data subject to change without notice

22 RECTANGULAR WAVEGUIDE TERMINATIONS 80 SERIES SUPER HIGH POWER TERMINATIONS 80-S SERIES No.T73A 6 OF 6 WR GHz KW average VSWR:.05 typical,. max WR GHz 4.5 KW average VSWR:.05 typical,. max These state-of-the-art convection cooled super high power terminations exemplify but one of MEC s many innovative approaches to satisfy specific requirements. May we help with your applications? Inquiries are cordially invited. - Data subject to change without notice

23 RECTANGULAR WAVEGUIDE CROSS GUIDE COUPLERS 90 SERIES 90L SERIES 90LC SERIES No.T3E of COMPACT LIGHTWEIGHT INTERNAL TERMINATION MEC 90 Series Cross Guide Couplers have specially-designed coupling apertures that produce flat coupling over the full waveguide frequency band. The couplers are symmetrical four-port devices; either arm may be used as the main line. They are also available with built-in terminations, integral coaxial adapters, and terminated dual secondary arms (dual directional couplers). These rugged, moderate-directivity couplers are ideal where the high directivity of the longer broad-wall multi-hole couplers (60 Series) is not required. The units are well-suited for many microwave applications including injection, reflection measurement, attenuation, and isolation. Because of their compactness and simplicity of construction, they have found wide acceptance in production applications. Assemblies are furnished with an aluminum housing. Finish is chromate conversion per MIL-C-554, Class 3, painted with gray epoxy enamel. - Data subject to change without notice

24 RECTANGULAR WAVEGUIDE CROSS GUIDE COUPLERS 90 SERIES 90L SERIES 90LC SERIES No.T3E of 90 SERIES 90L SERIES 90LC SERIES Coupling: 0, 30, 40, 50 db Directivity: typically 8 db min Coupling Mean: ± 0.5 db Frequency Sensitivity: VSWR: Waveguide Ports Coaxial Ports 0 = ±. db max. 30 = ±.0 db max. 40 = ± 0.8 db max..05 max. *.0 max for 0 db.0 max. std.;.0,.05 avail. 50 = ± 0.6 db max. MODEL FREQUENCY RANGE WAVELENGTH FLANGE DIMENSIONS (INCHES) NO. (GHz) SIZE A ±.03 B max. C ±.03 S WR-84 UG-584/U B WR-9 CMR G WR-87 UG-407/U D WR-59 CMR J WR-37 UG-44/U H WR- UG-38/U W WR-0 M39/ X WR-90 UG-35/U M WR-75 M39/ P WR-6 UG-665/U N WR-5 M39/ K WR-4 UG-597/U Y WR-34 M39/ A WR-8 UG-599/U ORDERING INFORMATION () Add the following suffixes to the model number to specify built-in termination, coaxial connector, coupling level, and connector type: (a) Built-in secondary arm termination: -L (b) Coupling Output Connector: -C (c) Coupling Level: -0 for 0dB, -30 for 30dB, -40 for 40dB, -50 for 50dB (d) Connector type: -7 for SSMA female -N for type N female -T for TNC female -3 for SMA female -7 for precision 7mm For a complete listing of connectors available, refer to data sheet T00. () Other flanges, coupling values, direction of coupling, multiple coupling arms, reduced height waveguide, and custom designs available on request. - 3 Data subject to change without notice

25 RECTANGULAR WAVEGUIDE WELL-MATCHED TEES AND HYBRIDS 00 / 00-L / 00-E / 00-H SERIES No.T39C LOW VSWR COMPACT FULL BANDWIDTH MEC offers a superior line of wellmatched, broadband 4-port hybrid magic tees (model 00) and 3-port tees (00-E for E-Plane series tee). They can also be supplied with an integral medium power termination on the E arm (00-L). The 3- port tees may be used in power dividing networks or as combiners of high power tube outputs. 00-E Series 00-H series 00 Series 00-L Series The magic tee hybrid is even more suitable as it offers high isolation. Common applications of the hybrid include balanced mixer operations and connecting a transmitter and receiver to a pair of fore and aft antennas on an aircraft. All units are aluminum with chromate conversion finish. Paint is gray epoxy enamel. VSWR:.3: at midband,.5: at band edges. Lower VSWR can be supplied over reduced bandwidths e.g..05 over 5%,.0 over 0%.0 over 0% frequency bandwidths. Power Split: 3.± 0. db (typ. tracking< 0.3 db) Phase Balance: within ± 5 Hybrid Isolation: 30 db E to H arm, 5 db colinear arms FREQUENCY RANGE (GHz) WAVEGUIDE SIZE EQUIVALENT FLANGE HYBRID TEE TERMINATED HYBRID TEE SERIES TEE SHUNT TEE DIMENSION A (IN. ±.03) WR-84 UG-584/U S00 S00-L S00-E S00-H WR-9 CMR-9 B00 B00-L B00-E B00-H WR-87 UG-407/U G00 G00-L G00-E G00-H WR-59 CMR-59 D00 D00-L D00-E D00-H WR-37 UG-44/U J00 J00-L J00-E J00-H WR- UG-38/U H00 H00-L H00-E H00-H WR-0 M39/70-00 W00 W00-L W00-E W00-H WR-90 UG-35/U X00 X00-L X00-E X00-H WR-75 WR-75 M00 M00-L M00-E M00-H WR-6 UG-665/U P00 P00-L P00-E P00-H WR-5 WR-5 N00 N00-L N00-E N00-H WR-4 UG-595/U K00 K00-L K00-E K00-H WR-8 UG-599/U A00 A00-L A00-E A00-H.00 ORDERING INFORMATION () For reduced VSWR over narrow band, add suffix N (e.g. S00-N) and specify band and VSWR desired. () Other flanges, materials, and tees such as folded, reduced height, and unequal split available on request. (3) Other waveguide bands and sizes also available. - 4 Data subject to change without notice

26 RECTANGULAR WAVEGUIDE BROAD-WALL MULTI-HOLE DIRECTIONAL COUPLERS 60 SERIES 00 SERIES No. T3D HIGH DIRECTIVITY FLAT COUPLING WAVEGUIDE OR COAXIAL PORTS These directional Couplers consist of rectangular waveguide primary and secondary lines with a common broad wall where high directivity coupling is achieved over the full waveguide band by a Tchebyscheff multi-hole coupling structure and a precision termination in the secondary arm. Waveguide cover flanges are provided on the main line while secondary lines are available with either cover flanges or coaxial connectors. Both single directional (60 Series) and dual directional (00 Series) couplers have minimum size consistent with electrical performance. These couplers are ideal in reflectometer set-ups to measure VSWR s as low as.04: over full waveguide bands. They are also well suited as samplers in leveling loops or as power dividers and combiners. Finish is chromate conversion per MIL-C-554, Class 3 for aluminum, and corrosion-resistant coatings for all others when specified, painted with gray epoxy enamel. Directivity 40 db Min. VSWR.05 Max., Main Line Coupling 0, 0, 30, 40, 50, db.0 Max., Waveguide Secondary Coupling ±0.4 db.35 Max., Coaxial Secondary Frequency Sensitivity ±0.5 db Max. Model Number Frequency Waveguide Equivalent Dimensions (Inches) Single Dual Range (GHz) Size Flange A B C D* S60 S WR-84 UG-584/U B60 B WR-9 CMR G60 G WR-87 UG-407/U D60 D WR-59 CMR J60 J WR-37 UG-44/U H60 H WR- UG-38/U W60 W WR-0 M39/ X60 X WR-90 UG-35/U M60 M WR-75 M39/ P60 P WR-6 UG-665/U N60 N WR-5 M39/ K60 K WR-4 UG-597/U Y60 Y WR-34 M39/ A60 A WR-8 UG-599/U** *For dual 0 db couplers, two single couplers are used back to back resulting in D =A **Aluminum ORDERING INFORMATION () Order by model number (by default the Model Numbers above are E Plane Style). Add a suffix H to the Model Number for the optional H Plane coupled arm versions. Add an additional suffix as follows to designate coupling level: -0 for 0 db -0 for 0 db -30 for 30 db -40 for 40 db -50 for 50 db () To specify coaxial secondary add suffix as follows: -3 for SMA female -T for TNC female -N for type N female -7for precision 7 mm For a complete listing of connectors available, refer to data sheet T00 (3) Other coupling values from 3 db and up are available. Over-all length may vary. (4) Other frequencies, directivity, style and power options available. - 5 Data subject to change without notice

27 QUARTZ VACUUM WINDOWS No. T75 HERMETIC LOW VSWR HIGH POWER These rectangular waveguide windows are ideal for vacuum and pressure-tight applications. The dielectric is high-temperature Quartz, brazed directly to a low- CTE KOVAR frame, to maintain the vacuum seal over a wide temperature range with no epoxy or adhesives. These windows withstand 5 PSI of differential pressure, in either direction. They handle high Peak, Average and CW power levels. MODEL# Waveguide Frequency Power rating VSWR* Ω Size Range (CW or Avg.) Thickness A70Q WR Y70Q WR K70Q WR N70Q WR P70Q WR M70Q WR X70Q WR W70Q WR H70Q WR J70Q WR D70Q WR G70Q WR B70Q WR S70Q WR LS70Q WR LA70Q WR Notes:. Flange combinations include cover/cover, cover/groove or groove/groove pattern, with thruholes in both UG, CPR and CMR styles.. Alternate configurations and additional high power cooling options are available upon request. Ordering Data: TYPICAL PART NO. (example) K70Q S MODEL NUMBER: INPUT FLANGE *: OUTPUT FLANGE *: MATERIAL FINISH: * COVER: GASKET: CMR: 3 CPR F: 4 CPRG: 5 * Narrower bands with lower VSWR and IL available G-GOLD plated, S-SILVER plated, K-KOVAR base metal - 6 Data subject to change without notice

28 RECTANGULAR WAVEGUIDE PRESSURE WINDOWS 70 SERIES No. T87A LOW VSWR HIGHPOWER MEC Rectangular Waveguide Pressure Windows offer low Reflection Loss over complete waveguide bands. Working pressure is 30 lbs. Typically they have a gasket groove on one side and conform to standard flange dimensions. Clearance holes are supplied for installation between flanges. Windows may be manufactured out of aluminum or brass. MODEL NO. S70 B70 G70 D70 J70 FLANGE TYPE UG-F/G CPR-F CPR-G CMR CPR-F CPR-G CMR UG-F UG-G CPR-F CPR-G CMR UG-F UG-G CPR-F CPR-G CMR UG-F UG-G CPR-F CPR-G CMR STYLE T (INCHES) / / / / /4 3/6 3/6 3/6 3/6 3/6 3/6 ORDERING INFORMATION () Ordering by model No., flange type, and style. () Call for information about higher power and special applications MODEL NO. H70 W70 X70 M70 P70 N70 K70 Y70 A70 FLANGE TYPE UG-F UG-G CPR-F CPR-G CMR UG-F UG-G UG-F UG-G CPR-F CPR-G CMR UG-F UG-G CPR-F CPR-G UG-F UG-G UG-F UG-G UG-F UG-G UG-F UG-G UG-F UG-G STYLE T (INCHES) 3/6 3/6 3/6 3/6 3/6 3/6 3/6 3/6 5/6 3/6 5/6 /8 /4 /8 /4 /8 /4-7 Data subject to change without notice

29 RECTANGULAR WAVEGUIDE SLIDING SHORT CIRCUITS 80-LSC SERIES No. T6B LOW LOSS FULL BAND NON-CONTACTING MEC 80-LSC Sliding Short Circuits are simple, low-loss devices which provide a movable short circuit in waveguide. The shorts are adjustable over more than half a guide wavelength at the lowest frequency of operation. Resettable movement is achieved via micrometer drive (P through A) or sliding shaft (LM through M) when scale or vernier is included. A Models from LM through D contain two-stage non-contacting folded cavity short circuits. Those from J through A contain non-contacting shorting plungers of the circular, multi-choke type. Both are highly efficient. Return loss is typically less than 0.3dB over the full waveguide band. Waveguide is aluminum with chromate conversion finish per MIL-C-554 Class 3. All units contain locking mechanisms. External non-mating surfaces are painted with gray epoxy enamel. MODEL NUMBER FREQUENCY RANGE (GHz) WAVEGUIDE SIZE EQUIVALENT FLANGE LENGTH A (INCHES) MAX. LM80-LSC WR-50 UG - 77/U.0 LA80-LSC WR-430 UG - 437B/U 7.0 LS80-LSC WR-340 UG - 554A/U 3.0 S80-LSC WR-84 UG - 584/U 0.0 B80-LSC WR-9 CMR G80-LSC WR-87 UG - 407/U 7.0 D80-lsc WR-59 CMR J80-LSC WR-37 UG 44/U 4.5 H80-LSC WR- UG 38/U 4.0 W80-LSC WR-0 M39/ X80-LSC 8..4 WR-90 UG 35/U 4.0 M80-LSC WR-75 M39/ P80-LSC WR-6 UG 665/U 4.0 N80-LSC WR-5 M39/ K80-LSC WR-4 UG 595/U 3.5 Y80-LSC WR 34 UG 530/U 3.5 A80-LSC WR-8 UG 599/U 3.5 ORDERING INFORMATION ) Order by model number. Add "S" or "V" if optional scale or vernier is desired with sliding shaft. ) Other flanges, bands, and lengths available on request. 3) Fixed short circuits with waveguide cover flanges are also available. Add suffix "FSC" to model number. EXAMPLE: P80 - FSC is a WR-6 waveguide fixed shorting plate with hole pattern the same as cover flange. - 8 Data subject to change without notice

30 RECTANGULAR WAVEGUIDE SIDEWALL DIRECTIONAL COUPLERS 500 SERIES No. T7C ULTRA-FLAT COUPLING HIGH ISOLATION WIDE COUPLING VALUES MEC Ultra-Flat Sidewall Directional Couplers were developed for the standard communication frequency bands with weaker coupling values not previously available. The couplers are aluminum three-port devices and have been designed to minimize length as well as provide an extremely flat level of ± 0. db coupling. Directivity has been maintained at 0 db minimum while VSWR is less than.06. Standard coupling values are 0, 0 and 30 db nominal (± db). Other values or custom designs are available on request between.4 and 30 db over a wide choice of frequency ranges. Finish is chromate conversion per MIL-C-554, Class 3, painted with gray epoxy enamel. MODEL NO. FREQUENCY (GHz) COUPLING (db) WAVEGUIDE SIZE INPUT FLANGE DIMENSIONS (IN.) A B C (MAX.) B WR9 CMR B50, B50, B , 0, 30 WR9 CMR D50, D50, D , 0, 30 WR59 CMR J50L, J50L, J530L , 0, 30 WR37 CMR J50M, J50M, J530M , 0, 30 WR37 UG44/U J50H, J50H, J530H , 0, 30 WR37 UG44/U H50L, H50L, H530L , 0, 30 WR UG38/U H50M, H50M, H530M , 0.30 WR UG38/U H504H, H503H, H504H , 3, 4 WR UG38/U X503L WR90 CMR X503M, X5033M, X5036M , 3.3, 3.6 WR90 CMR X504M, X5045M , 4.5 WR90 CMR X503H WR90 CMR X50H*, X50H, X530H , 0, 30 WR90 CMR M50*, M50, M , 0, 30 WR75 M39/ *VSWR.5 max., Directivity 5 db typical ORDERING INFORMATION A. For other coupling values, specify as follows:. Designate the band by letter.. Insert "5". 3. Insert coupling value desired. EXAMPLE: Model J57M is a 7 db nominal (± db) coupler in WR37 waveguide with flatness ± 0. db, operating over the GHz band. B. For exact coupling values, please specify. C. Termination may be placed in opposite wall if desired. - 9 Data subject to change without notice

31 SUPER HIGH POWER IN PHASE DIVIDER (S00E-5) No. T49 SUPER HIGH POWER LOW LOSS COOL OPERATING TEMPERATURE HIGH EFFICIENCY FINS RUGGED CONSTRUCTION MEC's S70L-345 is a WR84 Super High Power in Phase Power Divider. It operates at S-band and handles 5 MW peak, 40 KW average. High conductivity aluminum alloy material is used which helps lower the insertion loss (typically 0.03 db). The low loss, high precision machining, and high efficiency cooling fins all aid in lowering the operating temperatures. Temperature rise is less than 70 degrees F above ambient at 35 KW average input power. All above factors contribute towards problem free operation at the extremely high power levels. Its rugged construction makes it suitable for extreme shipboard environments. Contact MEC with your specific requirements. Our engineering staff will be glad to discuss your high power needs. : Model Number Frequency VSWR Insertion Loss Peak Power Average Power Case Temperature Pressure Input/Output Port S00E GHz.05: Max 0.05 db Max,.03 Typ 5 MW 40 KW 70 Max above KW average power 37.5 PSIG Max WR84-30 Data subject to change without notice

32 THE RIGHT STUFF. PERIOD. HIGH POWER COMPONENTS No. B0a MEC has mastered the exacting science of high power handling, from. to 40GHz in coax and waveguide. Examples include: Dummy loads ranging from passive radiating finned models to fan and liquid cooled. Absorptive filters which prolong transmitter life by preventing overheating due to spurious harmonics. Mismatches, fixed or variable amplitude and/or phase, to test for breakdown under simulated standing waves. Assorted high power components, such as waveguide to coax adapters, couplers, pressure windows and customized test kits. - 3 Data subject to change without notice