A new balanced self-oscillating mixer (SOM) with integrated antenna

Abstract

A new conliguration of the balanced Self-OScillafing up-conuener wilh intcgrafed antenna is pmpoxd and demonstrated at 5.9 GHz. ?be suucfure is composed of an IF feed network and two loop oscillators, a thres-pon 180' slot-Foupled microslip antenna, and a 3-dB power divider. The two oscillators shars a Common segment providing a path for mutual injection, leading to the synchronication of the ~scillation frequsncy and pharc. The IF-lo-RF convcrsion loss is about 7 dB. Also, the antenna successfully iuppresscr the LO-to-W power ratio from 24 dB to -0.6 dB.