Precision Phase Matched Low Noise Figure High Gain C-Band RF Down Converter

This paper describes the design and development of a compact ultra-low Noise Figure, high gain, precision phase matched C band RF down converter used in the receive chain of a Monopulse Radar which converts a C-Band RF signal to an IF signal. The module has integrated gain and phase matching provision to match between independent receivers. The module has a gain of greater than 50dB with a gain matching specification of $\pm 2 \mathrm{~dB}$ and phase matching of ± 10° across frequency.