Title :
3-pole bandpass filters using short-ended half-wavelength resonators and their applications to a duplexer
Author :
Wada, Kouji ; Aihara, Yoshiyuki ; Kamiyama, Tomohide ; Hashimoto, Osamu
Author_Institution :
Coll. of Sci. & Eng., Aoyama Gakuin Univ., Tokyo, Japan
Abstract :
The paper presents bandpass filters (BPFs) using short-ended half-wavelength resonators for out-of-band rejection and their applications to a duplexer. BPFs with out-of-band rejection are provided. Finally, we propose and design the new duplexers consisting of the proposed BPFs. The results of this study lead us to the conclusion that our proposals about the BPF and the duplexer are useful for realizing good characteristics without increasing the number of elements.
Keywords :
band-pass filters; coplanar waveguide components; linear network synthesis; multiplexing equipment; poles and zeros; resonators; 3-pole bandpass filters; circuit design; duplexer; out-of-band rejection; short-ended half-wavelength resonators; short-ended resonators; Band pass filters; Capacitors; Coupling circuits; Filtering theory; Frequency; Inverters; Proposals; RLC circuits; Resonance; Resonator filters;
Conference_Titel :
Wireless Communication Technology, 2003. IEEE Topical Conference on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-8196-3
DOI :
10.1109/WCT.2003.1321469
