Title :
A method for creating multiple attenuation poles by a microwave filter based on tapped resonators
Author :
Wada, Kouji ; Hashimoto, Osamu
Author_Institution :
Coll. of Sci. & Eng., Aoyama Gakuin Univ., Tokyo, Japan
Abstract :
According to the improvement of out-of-passband characteristics for microwave filters, a method for creating multiple attenuation poles is proposed by a tapped bandpass filter (BPF) based on the combination of basic resonators. In this paper, we present new BPFs on the basis of the combination of three types of basic resonators. As a result, multiple attenuation poles are easily obtained by the tapped BPF. This study lead us to the conclusion that the tapped BPF based on our concept is very useful for improving out-of-passband characteristics
Keywords :
UHF filters; band-pass filters; microwave filters; passive filters; poles and zeros; resonator filters; microwave filter; multiple attenuation poles; out-of-passband characteristics improvement; tapped bandpass filter; tapped resonators; Attenuation; Band pass filters; Circuits; Educational institutions; Electronic mail; Microwave devices; Microwave filters; Microwave theory and techniques; Resonance; Resonator filters;
Conference_Titel :
Radio and Wireless Conference, 2000. RAWCON 2000. 2000 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-6267-5
DOI :
10.1109/RAWCON.2000.881882
