On the design of generic matching networks in reflective-type phase shifters for antennas

In this paper, an analysis of improvements in the performance of a reflective-type phase shifter through the addition of a matching network is presented, taking into account both the phase range and the insertion loss variation. By reducing the complexity of the matching network´s analysis and narrowing it down to two parameters, an easier to read set of solutions is obtained for any given reflective load. Finally, a prototype was manufactured and measured using one of the matching points procured with the described method, increasing the phase shifter range at 9 GHz from 56 0 to 242 0, with an insertion loss variation of 6.18dB.