Agilent E3830 Series Wide-bandwidth Signal Analyzer Custom Systems 100 MHz Bandwidth Microwave Vector Signal Analysis

Transcription

1 Agilent E3830 Series Wide-bandwidth Signal Analyzer Custom Systems 100 MHz Bandwidth Microwave Vector Signal Analysis

2 The measurement challenge 2 Many advanced microwave applications involve complex wideband and time-varying signals such as: Satellite systems LMDS W-CDMA Microwave digital radio Radar/EW Surveillance Signal monitoring Measurement challenges faced by designers, manufacturers, and end users in these wideband application areas require transient analysis; analog and digital demodulation; and precision amplitude and phase measurements of frequency-translating devices and systems. Complete characterization of high data rate signals requires instrumentation capable of high-speed capture and analysis in both frequency and time domains. These wide-bandwidth measurement requirements are satisfied by linking three of Agilent Technologies most powerful signal analysis tools: the 71910A/P wide-bandwidth receiver, the 89410A vector signal analyzer (VSA), and the 54845A Infiniium oscilloscope.

3 The Agilent 71910A/P Wide-bandwidth Receiver 3 The 71910A/P is part of the Modular Measurement System (MMS) family. This instrument is a high performance microwave spectrum analyzer with the additional feature of several widebandwidth IF outputs. The 71910A includes the 70004A display mainframe, while the 71910P uses the 70207B PC display. High-performance spectrum analysis The 71910A/P features 100-MHz to 26.5-GHz frequency coverage and higher with external mixers. Adding the 11970A or 11974A mixer easily covers Ka-Band applications found in satellite, LMDS and microwave digital radio. A wide dynamic range helps ensure that signals of various amplitudes are accurately measured. The wide IF bandwidths, up to 100 MHz, are used to capture wideband signals such as those used in wireless communications and radar. A linear IF signal path provides good signal fidelity. The Agilent 71910A/P provides a variety of outputs for baseband signal analysis. It provides a wideband MHz IF output; a linear video output; and optional demodulated FM, analog I/Q, and 70-MHz/140-MHz IF outputs. The 70620B 26.5-GHz preamplifier and the 83050A 40-GHz preamplifiers are also available for measuring low-level signals such as those common to LMDS and W-CDMA.

4 The receiver, oscilloscope, and VSA: a very powerful combination 4 The Agilent E3830 series widebandwidth signal analyzer systems use the industry-standard 89410A vector signal analyzer as the measurement engine for the advanced analysis of complex signals. The 71910A/P wide-bandwidth receiver provides flexible high-performance microwave spectrum analysis on the RF and microwave carrier. Functions include out-of-band performance, interference, and spurious signal measurements. The receiver also provides the wide-bandwidth IF output to the 54845A Infiniium oscilloscope and the 89410A VSA. Adding the Agilent 54845A Infiniium oscilloscope as a highspeed digitizer provides the 100-MHz wide-bandwidth signal capture. The 100-MHz bandwidth signal is then ported as digital data to the 89410A VSA for complex signal analysis, providing true 100-MHz information bandwidth. The state-of-the-art DSP-based technology of the VSA offers a comprehensive range of signal analysis tools. Digital modulation analysis The VSA with optional vector modulation analysis can test systems and measure the quality of digitally modulated signals. Measurements are simplified because no external filters, coherent carriers, or symbol timing signals are needed. A selection of modulation formats, variable number of symbols and a variety of filter shapes are available. A wide range of display formats are provided, including eye, constellation, and vector diagrams, in addition to numerous error and other signal quality analysis results. Precision AM, FM, and PM demodulation The 89410A VSA can characterize phase noise, oscillator frequency transitions, and the amplitude or frequency behavior of transmitters at turn-on. Signals can be analyzed for instantaneous amplitude, frequency, or phase versus time, and the time-domain results can be translated into the frequency domain for further analysis. Both deliberate and unintentional (or incidental) modulation can be characterized completely.

5 5 Time-selective spectrum analysis The entire time-domain signal can be viewed and a specific portion selected for frequencydomain analysis of burst or time-varying signals. The selected data is identified with gate markers, and all frequencydomain parameters including noise or signal-to-noise can then be measured. The signal does not have to be repetitive. The Agilent 54845A Infiniium Oscilloscope The 54845A Infiniium oscilloscope is a 1.5-GHz bandwidth, 8-Giga-sample per second highspeed digitizer. This highperformance capability provides a very flat frequency response over the 100-MHz bandwidth of the signal analyzer system. The captured 100-MHz bandwidth signals are ported as digital data to the 89410A VSA for complex signal analysis. Using the 54845A scope as a state-of-the-art highspeed digitizer provides the high-performance measurement capability of the wide-bandwidth signal analyzer system. The Agilent 71910A/P, 89410A and 54845A each provide maximum flexibility and protect your investment in measurement assets. The Infiniium oscilloscope allows precision time-domain measurements, complementing the spectrum and modulation measurements of the wide-bandwidth receiver and VSA. Custom systems The E3830 series wide-bandwidth signal analyzer systems are available as custom systems, engineered to your specific measurement requirements. System software is included with a variety of computer options and rack cabinet mounting. Specifications are provided for each custom application and individual instruments are programmable via GPIB. Custom application software is also available. To optimize the system for your needs, Agilent Technologies can develop, procure, and integrate specialized signal routing, signal conditioning, and other customized equipment.

6 Key literature The following publications provide specifications, option descriptions and application information for the Agilent 71910A/P, 89410A, and 54845A: Literature Data sheet number 71910A data sheet E 89410A data sheet E 54845A data sheet EUS Modular Measurement System Catalog E Product overviews P-series spectrum analyzers E 54845A product overview EUS 89410A product overview E Product notes 10 steps to a perfect digital demodulation measurement, product note A E Noise power ratio (NPR) measurement, product note E E Agilent Technologies Test and Measurement Support, Services, and Assistance Agilent Technologies aims to maximize the value you receive, while minimizing your risk and problems. We strive to ensure that you get the test and measurement capabilities you paid for and obtain the support you need. Our extensive support resources and services can help you choose the right Agilent products for your applications and apply them successfully. Every instrument and system we sell has a global warranty. Support is available for at least five years beyond the production life of the product. Two concepts underlie Agilent s overall support policy: Our Promise and Your Advantage. Our Promise Our Promise means your Agilent test and measurement equipment will meet its advertised performance and functionality. When you are choosing new equipment, we will help you with product information, including realistic performance specifications and practical recommendations from experienced test engineers. When you use Agilent equipment, we can verify that it works properly, help with product operation, and provide basic measurement assistance for the use of specified capabilities, at no extra cost upon request. Many self-help tools are available. Your Advantage Your Advantage means that Agilent offers a wide range of additional expert test and measurement services, which you can purchase according to your unique technical and business needs. Solve problems efficiently and gain a competitive edge by contracting with us for calibration, extracost upgrades, out-of-warranty repairs, and on-site education and training, as well as design, system integration, project management, and other professional services. Experienced Agilent engineers and technicians worldwide can help you maximize your productivity, optimize the return on investment of your Agilent instruments and systems, and obtain dependable measurement accuracy for the life of those products. Get assistance with all your test and measurement needs at: Product specifications and descriptions in this document subject to change without notice. Copyright 1998, 2000 Agilent Technologies Printed in U.S.A. 7/ E