CAD design of an active MMIC circulator at 21-26 GHz frequency band.

Abstract

In this work the design an active MMIC circulator is presented. The foundry process that has been used is the HEMT process of GEC-Marconi Materials H40 (6). The analysis of this circulator is performed using CAD techniques. Specifically the software tool HP-Eesof Series IV (5) is used throughout the design process. Simulation results are presented and a comparison between a typical ferrite circulator and this active design is performed.