Title :
A stepped cavity resonator with optimized spurious performance and its applications to BPFs
Author :
Konno, K. ; Kubota, M.
Author_Institution :
Antenna Giken Co. Ltd., Saitama, Japan
Abstract :
To improve spurious characteristics of the dual-mode cavity resonator, the stepped cavity resonator is proposed, and the difference between the fundamental resonant and the spurious resonant frequencies is a 200 MHz improvement seen in the case of stepped cylindrical fundamental band of 1.8 GHz against the conventional cylindrical cavity. These are used in a two-stage BPF, showing an improvement in spurious characteristics.
Keywords :
band-pass filters; cavity resonators; waveguide filters; 1.8 GHz; BPFs; cylindrical cavity; dual-mode cavity resonator; fundamental resonant frequencies; optimized spurious performance; spurious characteristics; spurious resonant frequencies; stepped cavity resonator; stepped cylindrical fundamental band; Band pass filters; Base stations; Cavity resonators; Cellular phones; Dielectrics; Magnetic resonance; Magnetic separation; Personal communication networks; Resonant frequency; Telephony;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011637
