How to Verify TR Module Performance

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ENA-X network analyzer, 44 GHz
+ ENA-X network analyzer, 44 GHz
ENA-X network analyzer, 44 GHz
+ ENA-X network analyzer, 44 GHz

Verifying TR module performance with a vector network analyzer

Verifying the performance of a transmit / receive (TR) module for 5G New Radio (NR) standard compliance requires noise figure and linearity measurements using wideband modulated, calibrated signals. A single test bed, including a vector network analyzer (VNA), vector signal generator (VSG), and multiple instrument software applications, enables a broad range of measurements, including noise figure, adjacent channel power ratio (ACPR), and residual error vector magnitude (EVM) while simplifying the test setup.

The VSG supplies the required modulated signal. The VNA provides the necessary level of measurement precision by applying vector-error correction and advanced calibration methods. VNA software applications enable receiver noise figure measurements using the cold source method, as well as transmitter ACPR and low residual EVM measurements, without changing the configuration of the test setup.

TR module performance verification solution

TR module performance verification solution

Verifying TR module performance requires noise figure and linearity measurements under modulated signal stimulus. The Keysight MXG signal generator and Keysight ENA-X vector network analyzer with noise figure and modulation distortion (MOD) software applications form a complete test bed, providing the wideband signals and vector and source calibration necessary for high-fidelity measurements. The integrated upconverter at port 1 of the ENA-X upconverts the modulated signal from the MXG signal generator up to the maximum frequency of 44 GHz. The network analyzer simplifies the measurement setup while delivering vector-corrected noise figure data by leveraging integrated low-noise receivers and applying the cold source method. The ENA-X's wide dynamic range, coupled with vector error correction, significantly reduces residual test-set EVM, showcasing exceptional performance. This feature yields a complete picture of your TR module's performance without test system interference. Measure EVM with optional demodulation — the MOD software decomposes the linear and nonlinear signal components with spectral correlation to verify performance up to 50% faster.
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