Design of cross-coupled quarter-wave SIR filters with plural transmission zeros

被引：5

作者：

Hsu, Ching-Luh ^{[1
,2
]}

Kuo, Jen-Tsai ^{[2
]}

机构：

[1] Ta Hwa Inst Technol, Dept Elect Engn, 1 Dahua Rd, Hsinchu 307, Taiwan

[2] Natl Chiao Tung Univ, Dept Commun Engn, Hsinchu, Taiwan

来源：

2006 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-5 | 2006年

关键词：

bandpass filter; combline filter; cross-coupled stepped-impedance resonator (SIR); transmission zero;

D O I：

10.1109/MWSYM.2006.249426

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 cross-coupled bandpass filter is designed with quarter-wave stepped-impedance resonators (SIRS) on a single circuit plane. The entire circuit has not only a compact area since half-sized SIRS are used, but also a wide upper stopband because the first spurious peak occurs at a frequency much higher than the passband. Plural transmission zeros on both sides of the passband can be realized by non-adjacent couplings and tapped input/output. Two-port Z-parameters are employed to formulate the analysis of the transmission zeros. An experimental filter is fabricated and measured to validate the design.

引用

页码：1205 / +

页数：2

共 11 条

[1] A miniaturized net-type microstrip bandpass filter using λ/8 resonators [J].