A novel trap mechanism in coaxial-coupled waveguide filters

被引：0
|
作者：
Tsuji, M [1 ]
Yamato, T [1 ]
Mizuno, T [1 ]
Shigesawa, H [1 ]
机构：
[1] Doshisha Univ, Fac Engn, Kyoto 61003, Japan
来源：
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS | 1997年 / 80卷 / 08期
关键词：
pole-type filter; coaxial probe; cutoff waveguide filter; coaxial-waveguide transition;
D O I：
10.1002/(SICI)1520-6432(199708)80:8<53::AID-ECJB7>3.0.CO;2-3
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A pole-type filter is proposed, in which the coaxial probe acts as a trap circuit in addition to the conventional filter operation, by adjusting the spacing between the coaxial probe and the waveguide backshort in a coaxial-coupled cutoff waveguide filter. Unlike the conventional coaxial-coupled filter, this filter has a coaxial probe located close to the resonator of the next stage. Therefore, the filter is designed by using a synthesis method in which the effects of the higher-order cutoff modes are taken into account. The numerical results and the experimental investigation of the transmission characteristics of the synthesized filter verify its usefulness. (C) 1998 Scripta Technica.
引用
收藏
页码：53 / 61
页数：9
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