X-band microwave power divider based on bow-tie shaped dielectric resonator high-order modes

Abstract

The use of high order mode bow-tie shaped dielectric resonator in the design of X-band 6-way power divider is presented. A combination of probe type of excitation integrated with microstrip technology are used to excite an H-polarized resonating mode around 10 GHz. For tapered power distribution, the 23° sectored angle bow-tie shaped dielectric resonator is enclosed within a cylindrical shielded cavity while additional phase compensation is implicitly considered in the feeding network design. Both input matching and in phase tapered power distribution are experimentally maintained within 150 MHz frequency band around the resonance. Measured scattering parameters magnitude and phase of the proposed 7-port structure are carried out to verify the results predicted by simulation.