A Broadband Compact Microstrip Rat-Race Hybrid Using a Novel CPW Inverter
A new class of wideband multisection 180/spl deg/ hybrid rings using vertically installed planar couplers
A NOVEL APPROACH TO THE DESIGN OF DUAL-BAND POWER DIVIDER WITH VARIABLE POWER DIVIDING RATIO BASED ON COUPLED-LINES
24 GHz LTCC I/Q Mixer Using Packaged HEMTs
Miniaturized Rat Race Coupler With Suppression of Spurious Passband
Improvements to the design of the 0-180/spl deg/ rat race coupler and its application to the design of balanced mixers with high LO to RF isolation