A Compact Highly Selective Bandpass Filter with Wide Upper-Stopband

被引：0

作者：

Nie, Wei ^{[1
,2
]}

Fan, Yong ^{[1
]}

Luo, Sha ^{[2
]}

Guo, Yongxin ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu 611731, Peoples R China

[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

来源：

2014 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC) | 2014年

关键词：

bandpass filters; single band; wide upper-stopband; RESONATOR;

D O I：

暂无

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：

In this paper, a compact highly selective bandpass filter with wide upper-stopband using short-circuited microstrip coupled-line hairpin resonator is presented. The equivalent transmission-line circuit model is developed to analyze the performance of the proposed filter. There are two transmission poles existing at each resonance of a single short-circuited microstrip coupled-line hairpin unit. The feeding lines are capacitively coupled to the resonator at the location where the finger of the hairpin is divided into two segments at a ratio of 1:2. As a result, the first harmonic appears at the frequency which is 5 times of the fundamental frequency and three transmission zeros are also generated to improve the skirt effect. Therefore, a compact bandpass filter with a wide upper-stopband is achieved. Finally, the proposed filter is fabricated to verily the design principles, and the measured results agree well with the predicted ones.

引用

页码：1226 / 1228

页数：3

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[1] A compact highly selective bandpass filter with wide upper-stopband
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[J]. (1) School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu; 611731, China; (2) National University of Singapore, Department of Electrical and Computer Engineering, Singapore; 117576, Singapore, 1600, et al.; IEEE Sendai Section, The Japan Institute of Electronics Packaging; The Institute of Electronics, Information and Communication Engineers (IEICE); The Technical Committee on Electronics Simulation Technology, Electronics Society, IEICE; The Technical Committee on Microwave Photonics, Electronics Society, IEICE; The Technical Committee on Microwaves, Electronics Society, IEICE (Institute of Electrical and Electronics Engineers Inc., United States):
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