Title :
A microstrip UWB bandpass filter using a stub-loaded dual-mode ring resonator and a step impedance two-mode resonator
Author :
Watanabe, Koji ; Ma, Zhewang ; Chun-Ping Chen ; Kobayashi, Yoshio ; Anada, Tetsuo
Author_Institution :
Grad. Sch. of Sci. & Eng., Saitama Univ., Saitama
Abstract :
In this paper, a novel UWB bandpass filter (BPF) is developed by using a microstrip stub- loaded dual-mode ring resonator and a parallel-coupled step-impedance two-mode resonator. The advantageous features of both the stub-loaded dual-mode ring resonator and the step- impedance two-mode resonator are fully exploited, and a compact UWB filter with sharp attenuations and wide stopbands is realized, which satisfies well Japan´s UWB low-band limit.
Keywords :
band-pass filters; microstrip filters; resonator filters; microstrip UWB bandpass filter; parallel-coupled step-impedance two-mode resonator; stub-loaded dual-mode ring resonator; Attenuation; Band pass filters; Filtering theory; Frequency; Impedance; Microstrip filters; Microstrip resonators; Optical ring resonators; Passband; Resonator filters;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958430
