Miniaturization Technologies of Dielectric Resonator Filters for Mobile Communications

被引：33

作者：

Wakino, Kikuo ^{[1
]}

Nishikawa, Toshio ^{[1
]}

Ishikawa, Youhei ^{[1
]}

机构：

[1] Murata Mfg Co Ltd, Nagaokakyo, Kyoto 617, Japan

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1994年 / 42卷 / 07期

关键词：

D O I：

10.1109/22.299721

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：

The unloaded Q of a fixed frequency cavity resonator which is filled with low-loss dielectric material is proportional to the cubic root of its volume due to the intensified current loss in the cavity wall. Utilization of such materials to reduce resonator size must be evaluated by taking this volume dependency into account. This paper describes several resonator miniaturization techniques, including the multimode reuse of space, the use of supplementary energy resonators (so called active resonator) with a enhanced apparent Q value, the low-stored-energy filter technique using transversal filters, and the reduced size resonators using mirror image technique.

引用

页码：1295 / 1300

页数：6