Title :
Coupling-Matrix Design of Dual/Triple-Band Uni-Planar Filters
Author :
Mokhtaari, Marjan ; Bornemann, Jens ; Amari, Smain
Author_Institution :
Victoria Univ., BC
Abstract :
Dual-band and triple-band filters in uniplanar technology are designed using cross-coupled networks represented by coupling matrices. The multiband response is created by placing transmission zeros within the bandwidth of a wideband filter. Realizable planar topologies can be imposed and associated coupling coefficients enforced during optimization. The design method is demonstrated using three different planar resonator configurations: hairpin, open-loop and quasi-dual-mode resonators. Designs are verified by commercially available software packages and, in principle, by measurements
Keywords :
microstrip filters; poles and zeros; resonator filters; coupling-matrix design; cross-coupled networks; dual-band uniplanar filters; hairpin resonator; microstrip filters; multiband response; open-loop resonator; planar resonator configurations; quasidual-mode resonators; transmission zeros; triple-band uniplanar filters; wideband filter; Bandwidth; Couplings; Design methodology; Dual band; Filtering theory; Network topology; Resonator filters; Software packages; Transmission line matrix methods; Wideband; Filter design; coupling matrix; dual-band filters; microstrip filters; planar resonators;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249624
