DIFFERENTIAL SIGNAL GENERATOR USING WIDE BANDWIDTH & WIDE TUNING RAT-RACE COUPLER

Abstract

As the technology is evolving day by day in the last few years, many inventions are happening one after other in every technology field as far as RF & microwave engineering is concerned there are so much of innovations are happening regarding producing antennas of high gain,dual-polarization antennas for 4G and 5G and many other areas as well, our research is mainly focused on rat-race couplers, as the technology is progressed everyone is looking for the small-sized equipment with better features in terms of power, bandwidth and tuning, more specifically we can say its always good to have less power consumption, high bandwidth, large tuning range.in our design we designed two rat-race couplers one with 50% fractional bandwidth with no tuning and the other with 40-42% fractional bandwidth with 40% tuning range.