High isolation and compact size microstrip hairpin diplexer

被引：102
|
作者：
Srisathit, S [1 ]
Patisang, S
Phromloungsri, R
Bunnjaweht, S
Kosulvit, S
Chongcheawchamnan, M
机构：
[1] Mahanakorn Univ Technol, Res Ctr Electromagnet Wave Applicat, Bangkok 10530, Thailand
[2] Kings Mongkut Inst Technol, Ladkrabang, Thailand
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2005年 / 15卷 / 02期
关键词：
diplexer; hairpin filter; resonator; spurious response; stepped impedance coupled line;
D O I：
10.1109/LMWC.2004.842839
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：
Since conventional microstrip hairpin filter and diplexer are inherently formed by coupled-line resonators, spurious response and poor isolation performance are unavoidable. This letter presents a simple technique that is suitable for an inhomogeneous structure such as microstrip to cure such poor performances. The technique is based on the stepped impedance coupled-line resonator and is verified by the experimental results of the designed 0.9 GHz/1.8 GHz microstrip hairpin diplexer.
引用
收藏
页码：101 / 103
页数：3
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