Temperature-stable dielectric TM010-mode resonator and its application to compact base station filter

IEICE Electronics Express

Toshio Ishizaki¹ 

[1] Panasonic Corporation

关键词: TM-mode;    resonator;    bandpass filter;    reliability;    temperature coefficient;   

DOI  :  10.1587/elex.7.454

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)Instead of a bulky TE-mode resonator with high Qu, a compact TM-mode resonator with moderate Qu is proposed. The contact between the ceramic rod and the metal cavity is a key point for the filter reliability. Elasticity of the contact portion is well utilized in this case to keep the smooth electrical contact. Also, temperature coefficient of TM-mode resonator is studied. The requirements for characteristics of the ceramic materials are a little different for TE-mode and TM-mode. Finally, high-reliable and temperature-stable TM-mode resonator has been developed. Its application to compact base station filter is demonstrated as well.

【 授权许可】

Unknown