Calibration Implementation Techniques for Multichannel Phased-Array Subsystems (Download)
Accurate amplitude and phase calibration is essential to achieving the theoretical performance of phased-array antenna systems. Proper calibration applies the correct phase and amplitude weighting to each antenna element. This ensures that desired signals combine constructively (coherently) while noise, being uncorrelated between elements, combines less efficiently (noncoherently).
The result is improved signal-to-noise ratio (SNR) and consistent antenna pattern performance across varying frequencies, temperatures, and operating conditions.
This article focuses specifically on two phase‑alignment techniques used for the evaluation and characterization of the ADXBAND16EBZ X-band phased-array reference design.