The effect of the device mismatch on parameters of GaN MMIC phase shifters

Abstract

The article presents the results of the design of GaN phase shifter for MIMO-based antennas. The optimization and simulation for each operating frequency 0.1–31.5 GHz was performed along with simulation of effect of capacitance mismatch on phase shifter parameters. The phase shifter is designed as a switchable high-pass filter that provides a 90° phase shift with minimum insertion losses at the operating frequency. Designed phase shifter works in the frequency bands up to 55 GHz