A novel approach for designing a uniplanar microstrip to slot-line tra
nsition for MIC/MMIC and antenna applications is described. A slot-lin
e radial stub is utilized to create resonance conditions at the juncti
on of the two transmission lines so that maximum intermodal power tran
sfer occurs. Excellent insertion loss and impedance match is obtained
over a 30% bandwidth. (C) 1994 John Wiley & Sons, Inc.