A Method & System for Phase-Nonlinearity Improvement in Ultra Wide Band Homodyne Receiver

This paper consists of a unique method & system for improving phase-nonlinearity in a wideband homodyne receiver. This deals with the method of improving phase non-linearity in a wideband homodyne receiver across the full dynamic range, without using any additional phase and amplitude controller circuitry. This system is realized by using unique method of adjusting gain and the key method to improve the phase non linearity is by reducing the LO leakage and noise level at the input port of mixer with respect to RF signal level in receiver module. Features like unique multi deck microwave assembly used in this system to achieve light weight & compact size for microwave modules, multichannel, wideband, large dynamic range with better sensitivity provides this system a huge potential to be used for electronic warfare in airborne as well as ground application.