Antenna Part Number: FR05-S1-R-0-105

Transcription

1 Fractus EZConnect Zigbee, RFID, ISM868/9 Chip Antenna Antenna Part Number: FR5-S1-R--15 This product is protected by at least the following patents PAT. US 7,148,85, US 7,22,822 and other domestic and international patents pending. Any update on new patents linked to this product will appear in All information contained within this document is property of Fractus and is subject to change without prior notice. Information is provided as is and without warranties. It is prohibited to copy or reproduce this information without prior approval. Fractus is an ISO 91:28 certified company. All our antennas are lead-free and RoHS compliant. July 215 Page FRACTUS, S.A.

2 TABLE OF CONTENTS 1. ANTENNA DESCRIPTION 3 2. QUICK REFERENCE GUIDE 3 3. ELECTRICAL PERFORMANCE FRACTUS EVALUATION BOARD ( MHZ) VSWR AND EFFICIENCY RADIATION PATTERN (at 915 MHz), GAIN AND EFFICIENCY CAPABILITIES AND MEASUREMENT SYSTEMS 6 4. MECHANICAL CHARACTERISTICS DIMENSIONS, TOLERANCES & MATERIALS COLOUR RANGE FOR THE INK ANTENNA FOOTPRINT (as used in the evaluation board) 8 5. MATCHING NETWORK 8 6. ASSEMBLY PROCESS 9 7. PACKAGING 11 July 215 Page FRACTUS, S.A.

3 1. ANTENNA DESCRIPTION The Fractus EZConnect antenna has been specifically designed for wireless devices using Zigbee, RFID and other wireless standards operating at the ISM 868/9 MHz bands. EZConnect antenna uses the space-filling properties of Fractus technology to become one of the smallest antennas for ISM868/9 applications. Additionally, the antenna maintains a high radiation efficiency that helps to improve the battery life of your devices and features an omnidirectional radiation pattern optimal for highly scattered environments such as indoor environments and public spaces. 7.3 mm 18. mm.8 mm TOP BOTTOM APPLICATIONS BENEFITS Metering (Gas, Electricity, Water...) High efficiency and gain RFID (UHF Tags, Readers...) Small size Sensors (Parking, Speed control, Optics...) Cost-effective Modules Zigbee Easy-to-use (pick and place) Gateways 2. QUICK REFERENCE GUIDE Technical features Frequency range MHz Average Efficiency 82. % Peak Gain 1.7 dbi Radiation Pattern Omnidirectional VSWR < 2:1 Polarization Linear Weight (approx.).2 g Temperature -4 to + 85 ºC Impedance 5 Dimensions (L x W x H) 18. mm x 7.3 mm x.8 mm Please contact info@fractus.com if you require additional information on antenna integration or optimisation on your PCB. FRACTUS S.A. Tel: Fax: Table 1 -Technical Features. Measures from the evaluation board (121. mm x 48. mm x.8 mm PCB). See picture in page 5. July 215 Page FRACTUS, S.A.

4 3. ELECTRICAL PERFORMANCE 3.1. FRACTUS EVALUATION BOARD ( MHz) The 9 MHz configuration for the EZConnect chip antenna used in the PCB Evaluation Board, Figure 1 and picture in page 5, corresponds to the MHz band. 5 Ohms transmission line Ground Plane Measure mm A 15. B 48. C 121. D 11. E 53.5 Tolerance: ±.2 mm Material: The evaluation board is built on FR4 substrate. Thickness is.8 mm Figure 1 EZConnect Evaluation Board in the MHz. See picture in page VSWR AND EFFICIENCY Graph 1 - VSWR (Voltage Standing Wave Ratio) and Efficiency (%) vs. Frequency (GHz) Note: to work at ISM 868 MHz band with the EZConnect antenna, please download the following application note July 215 Page FRACTUS, S.A.

5 3.3. RADIATION PATTERN (at 915 MHz), GAIN AND EFFICIENCY Gain (db): Theta=9º cut f=915mhz Orientation: Antenna in Plane ZY Azimuth Cut θ=9º Plane XY Gain (db): Phi=º cut Gain (db): Phi=9º cut f=915mhz f=915mhz Elevation Cut = º Plane XZ Elevation Cut = 9º Plane YZ Peak Gain 1.7 dbi Gain Average Gain across the band Gain Range across the band (min, max) 1.6 dbi 1.6 dbi <-> 1.7 dbi Peak Efficiency 85.2 % Efficiency Average Efficiency across the band 82.8 % Efficiency Range across the band 8. % % Table 2 Antenna Gain and Efficiency within the MHz band. Measures made in the evaluation board and in the Satimo STARGATE 32 anechoic chamber. July 215 Page FRACTUS, S.A.

6 Return Los s (db) 3.4. CAPABILITIES AND MEASUREMENT SYSTEMS Fractus specialises in designing and manufacturing optimised antennas for wireless applications and providing our clients with RF expertise. We offer turn-key antenna products and antenna integration support to minimise your time requirement and maximize your return on investment during your product development efforts. We also provide our clients with the opportunity to leverage our in-house testing and measurement facilities to obtain accurate results quickly and efficiently. VSWR & S Parameters VSWR=2 Le ft Ante nna Right Ante nna Is olation -16 Agilent E571B Frequency (GHz) Radiation Pattern & Efficiency f=535mhz SATIMO s STARGATE Anechoic and semi-anechoic chambers and full equipped in-house lab July 215 Page FRACTUS, S.A.

7 4. MECHANICAL CHARACTERISTICS 4.1. DIMENSIONS, TOLERANCES & MATERIALS TOP BOTTOM Figure 2 Antenna Dimensions and Tolerances Dimension mm Dimension mm A F B G 1..5 C.8.2 H D I E.4.1 The white circle located on the top side of the antenna indicates the feed pad. Fractus EZConnect antenna is compliant with the restriction of the use of hazardous substances (RoHS). The RoHS certificate can be downloaded from COLOUR RANGE FOR THE INK The next figure shows the range of the colours in the antenna: Acceptable colour range July 215 Page FRACTUS, S.A.

8 4.3. ANTENNA FOOTPRINT (as used in the evaluation board) This antenna footprint applies for the reference evaluation board described in page 4 of this User Manual. Feeding line dimensions over the clearance zone described in figure 3 applies for a.8 mm thickness FR4 PCB. Measure mm A 1.4 B 1.8 C 3.8 D.8 E 18. F 14.4 G 3.7 H 4.1 I 7.3 J 1.8 K 14.8 L 8.4 Tolerance: ±.2 mm Figure 3 Antenna Footprint Details Other PCB form factors and configurations may require a different feeding configuration, feeding line dimensions and clearance areas. If you require support for the integration of the antenna in your design, please contact info@fractus.com 5. MATCHING NETWORK The specs of a Fractus standard antenna are measured in their evaluation board, which is an ideal case. In a real design, components nearby the antenna, LCD s, batteries, covers, connectors, etc affect the antenna performance. This is the reason why it is highly recommended to place 42 pads for a PI matching network as close as possible to the antenna feeding point. Do it in the ground plane area, not in the clearance area. This is a degree of freedom to tune the antenna once the design is finished and taking into account all elements of the system (batteries, displays, covers, etc). July 215 Page FRACTUS, S.A.

9 6. ASSEMBLY PROCESS Figure 4 shows the back and front view of the EZConnect chip antenna, which indicates the location of the feeding point and the mounting pads: 4 Mounting Pads (2, 3,4): solder the antenna mounting pads to the soldering pads on the PCB. These pads must NOT be grounded Feed Pad (1): the white circle on the top of the antenna indicates the position of the feed pad in the bottom. Align the feed point with the feeding line on the PCB. See Figure 1. Figure 4 Pads of the EZConnect Chip Antenna As a surface mount device (SMD), this antenna is compatible with industry standard soldering processes. The basic assembly procedure for this antenna is as follows: 1. Apply a solder paste on the pads of the PCB. Place the antenna on the board. 2. Perform a reflow process according to the temperature profile detailed in table 3, figure 6 of page After soldering the antenna to the circuit board, perform a cleaning process to remove any residual flux. Fractus recommends conducting a visual inspection after the cleaning process to verify that all reflux has been removed. The drawing below shows the soldering details obtained after a correct assembly process: Antenna Antenna Solder Paste ~.1* mm PCB PCB Figure 5 - Soldering Details NOTE(*): Solder paste thickness after the assembly process will depend on the thickness of the soldering stencil mask. A stencil thickness equal or larger than 127 microns (5 mils) is required. July 215 Page FRACTUS, S.A.

10 Fractus EZConnect antenna can be assembled following the Pb-free assembly process. According to the Standard IPC/JEDEC J-STD-2C, the temperature profile suggested is as follows: Phase Profile features Pb-Free Assembly (SnAgCu) RAMP-UP Avg. Ramp-up Rate (Tsmax to Tp) 3 ºC / second (max.) PREHEAT - Temperature Min (Tsmin) - Temperature Max (Tsmax) - Time (tsmin to tsmax) 15 ºC 2 ºC 6-18 seconds REFLOW - Temperature (TL) - Total Time above TL (t L) 217 ºC 6-15 seconds PEAK - Temperature (Tp) - Time (tp) 26 ºC 2-4 seconds RAMP-DOWN Rate 6 ºC/second max. Time from 25 ºC to Peak Temperature 8 minutes max. Table 3 Recommended soldering temperatures Next graphic shows temperature profile (grey zone) for the antenna assembly process reflow ovens. Figure 6 Temperature profile July 215 Page FRACTUS, S.A.

11 7. PACKAGING The EZConnect chip antenna is available in tape and reel packaging. Figure 7 Tape dimensions & real image including antennas Dimension mm Dimension mm TAPE SIZE (W) 32. ±.3 Wmax 32.3 A 7.7 ±.1 E 1.75 ±.1 B 18.3 ±.1 F 14.2 ±.1 K 1.2 ±.1 K 1.5 ±.1 B max P 12. ±.1 D 1.55 ±.5 P 4. ±.1 D1 2.1 min P2 2. ±.1 Measure mm A 33 ± 1 G 33.5 ±.2 t max 37.5 ±.2 Reel Capacity: 25 antennas. Figure 8 Reel Dimensions and Capacity July 215 Page FRACTUS, S.A.