Transmit/Receive Module And AESA Radar Testing

Transmit/receive modules (TRMs) and active electronically scanned array (AESA) radars require sophisticated testing to ensure high performance in defense and communication applications. The R&S®ZNA vector network analyzer from Rohde & Schwarz provides a comprehensive solution, integrating advanced amplifier testing, intermodulation analysis, and noise figure measurement with flexible frequency conversion and phase-controlled sources.

With up to four internal sources and an internal combiner, the R&S®ZNA enables receiver intermodulation and compression testing while supporting dual local oscillator (LO) designs for embedded LO devices. Its phase-coherent sources facilitate precise phase measurements and radiation pattern testing for beamforming submodules. Additionally, multichannel spectrum analysis allows spurious emission searches across multiple receivers in parallel.

The analyzer's enhanced trigger and pulsed I/O functions synchronize with devices under test (DUT), ensuring accurate control of phase and power settings during measurement. A two-port R&S®ZNA configuration allows testing of two-port TRMs under various conditions, including intermodulation, compression point, and embedded LO group delay analysis.

These capabilities make the R&S®ZNA an essential tool for engineers working with complex RF and microwave systems, ensuring reliable radar performance and signal integrity. By offering precise, flexible, and high-performance measurement solutions, it addresses the growing challenges in modern radar and communication system development.