In order to operate in a satisfactory matter, a mixer needs to have well controlled amplitude, phase response, and group delay. Constant group delay is especially important in wireless and satellite communications systems and in applications involving high target resolution in surveillance systems. When mixers are used to measure group delay in frequency converters, some setbacks can occur if the local oscillator isn’t accessible...
This White Paper provides a general overview of different military and commercial radar systems. It also touches some typical measurements challenges on such systems and their components.There is a complementary application note, a new version of the 1MA127 which provides information on radar test and measurement to the main target groups A&D and Automotive. Addtionally it provides an overview of core radar-related products from Rohde & Schwarz.
With the recent introduction of the R&S®SMW200A microwave vector signal generator, Rohde & Schwarz now offers a novel approach to flexibly and conveniently generate multiple radar target echoes for systems up to 20 GHz. When used in combination with the R&S®FSW signal and spectrum analyzer, these commercial off-the-shelf (COTS) test instruments can be configured to support flexible radar target generation including range and target velocity emulation.
Differential devices offer advantages like noise immunity, low crosstalk, high integration density, and reduced power consumption. However, they also require special measurement capabilities. There are essentially two different measurement methods available: virtual measurements, and true differential measurements.
As Over The Air (OTA) measurements become more important in 5G technologies, Anritsu proposes a new measurement method for solving millimeter-wave OTA measurements that solves the current Far-Field Measurement (FFM) challenges, and helps to reduce measurement costs. Based on actual measurement results, Anritsu's Near-Field Measurement (NFM) method is capable of offering improved measurement sensitivity. Anritsu also introduces an NFM solution for the E-band using Non-Linear Transmission Line technology. This white paper discusses how Near-Field Measurement technology works, the advantages of using it, and comparisons between NFM and FFM measurement results.
Millitech’s millimeter wave phase locked synthesizers are ideal for use in test and instrumentation sources, as drivers for multipliers, as local oscillators for radar, radiometer, and telecommunications transmitters and receivers, and in PLDRO/YIG replacement applications. They feature low phase noise, ease of use, and a small size.
Berkeley Nucleonics’ model 577 is a digital delay/pulse generator with its own trigger, its own gate, its own delay and width settings, and eight outputs – each configurable with their own pattern. It provides precise delays and widths with 250pS resolution for times up to 1000 seconds.
The R&S FSW85 is the latest addition to Rohde & Schwarz’ family of signal and spectrum analyzers. It is the only device on the market designed to cover the frequency range from 2 Hz to 85 GHz in a single sweep, allowing users to test baseband and RF with a single analyzer. Test setups are now much simpler, since the R&S FSW85 does not require harmonic mixers. An internal preselection feature suppresses the image frequency and other spurious emissions that commonly occur during harmonic mixing.
Rigol offers the RSA5000 Series Real-Time Spectrum Analyzer delivering class leading 7.45 µsec 100% probability of intercept, meaning that any pulse with duration greater than 7.45 µsec will be captured and accurately displayed. This device includes advanced trigger capabilities, making the task of identifying and isolating signals of interest easier.
Ducommun’s line of millimeter-wave Doppler and ranging sensors are ideal for automotive radar and Doppler ranging radar applications. They features a compact size, low 1/f noise, high sensitivity, low harmonic and spurious emission, and a circular polarized waveform.
JFW is an innovative designer and manufacturer of application specific matrix switches and programmable test systems for cellular / PCS laboratory installations...
The GORE® PHASEFLEX® Series offers the smallest, lightest, internally ruggedized microwave/RF test assemblies for high density interconnection in RF and uW modular applications as well as in high speed digital testing. These assemblies feature ON cable construction and provide consistent, repeatable measurements with electrical performance up to 18, 26.5, 40, or 50 GHz.
