Ensuring Phase-Consistent Measurement Accuracy Through KKPCB’s Ultra-Low-Loss RF Manufacturing Platform As mmWave calibration and test systems advance into the 40–110 GHz domain, every transmission line, connector, and RO5880 PCB trace within the measurement chain directly influences phase linearity and amplitude accuracy.Even a minor 0.1 dB loss variation or 1° phase shift can distort calibration...


