A broadband Ka-band microstrip circulator for integrated millimeter wave systems

Abstract

A Ka-band microstrip circulator, usin9 ferrite with 4]r-M=fiO00 G, have been developed. By optimizin9 the circulator configuration, broadband n=2 Chebyshev response performance are obtained over 7 GHz bandwidth. The circulator have isclation of 9reater than 15 dB, and insertion loss of less than 1.0 d~.