Magnetically tunable filters for cellular communication terminals

被引：10
|
作者：
Krupka, Jerzy [1 ]
Abramowicz, Adam [1 ]
Derzakowski, Krzysztof [1 ]
机构：
[1] Warsaw Univ Technol, Dept Elect & Informat Technol, PL-00661 Warsaw, Poland
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2006年 / 54卷 / 06期
关键词：
dielectric resonators; ferrite loaded resonators; filters; tunable filters;
D O I：
10.1109/TMTT.2006.875268
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：
Magnetically tunable two-pole dielectric-resonator filters containing axially and circumferentially magnetized ferrite elements have been designed and investigated. Employing Axially magnetized ferrites, a 20-MHz tuning range was obtained. The Q factor of resonators was 2500 and the tuning power was 1.8 W. Filters containing circumferentially magnetized discs demonstrated a 12-MHz tuning range with the Q factor over 8000 (tuning power 3.5 W) and 28 MHz with the Q factor 3500 (tuning power 3.5 W).
引用
收藏
页码：2329 / 2335
页数：7
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