Title :
New Reduced-Size Step-Impedance Dual-Band Filters with Enhanced Bandwidth and Stopband Performance
Author :
Mokhtaari, Marjan ; Bornemann, Jens ; Amari, Smain
Author_Institution :
Victoria Univ., BC
Abstract :
This paper presents new configurations for dual-band filter designs. Stepped impedance resonators are used to implement the dual-band characteristics. Due to their tunable spurious response properties, the new filters feature two controllable passbands at desired frequencies, high out-of-band rejection as well as a wide stopband regions created by a zero-phase feed structure without input/output matching networks. Moreover, the new topologies occupy less circuit space in comparison with traditional designs. Several new dual-band filter configurations have been designed on RT-Duroid 6006 substrate. Performances are verified using commercially available field solvers
Keywords :
band-pass filters; band-stop filters; microstrip filters; network topology; resonator filters; RT-Duroid 6006 substrate; dual-band filter; filter design; microstrip filter; passband filter; step-impedance filter; stepped impedance resonator; stopband performance; zero-phase feed structure; Band pass filters; Bandwidth; Dual band; Feeds; Frequency; Impedance; Matched filters; Passband; Resonator filters; Tunable circuits and devices; Filter design; dual-band filters; microstrip filters; stepped impedance 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.2006.249402
