PHANTOM microwave generation and measurement chain Selectable diagrams compare the existing vector network analyser prototype, a dedicated synthesizer and VNA front-end core, and an integrated RF transceiver implementation. 1 GHz2 GHz 3 GHz4 GHz One precisely selected tone at a time—not four separate emitters LibreVNA source + coherent four-S receiver 3 dB fixed pads 8-node reciprocal switch matrix Ready-made measurement instrument; fastest route to physical evidence Reference clock ADF4351 35 MHz–4.4 GHz PLL + integrated VCO S Fixed pad + power check Absorptive eight-node matrix 2 × ADL5960 10 MHz–20 GHz VNA front ends shared LO ADC + FPGA complex amplitude and phase Several small ICs form one calibrated central core; body pods can remain passive Reference clock AD9361 2 Tx + 2 Rx ADC/DAC + synthesis 70 MHz–6 GHz Rx integrated transceiver Fixed pad + RF matrix FPGA / processor calibration + capture Closest to “one RF chip,” but still needs clock, filters, passive power limit, matrix and processor frequency generation coherent measurement passive limit
Recommended product path A low-cost synthesizer plus two VNA front ends preserves calibrated phase and amplitude.