A MEANDERING DUAL-MODE BANDPASS FILTER WITH RECTANGULAR-LOOP PERTURBATION

被引:4
作者
Chu, Rui [1 ]
Mao, Jun-Fa [1 ]
Zhou, Liang [1 ]
机构
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Ctr Microwave & RF Technol, Shanghai 200030, Peoples R China
关键词
microstrip; bandpass filter; dual-mode; meandering resonator; rectangular perturbation loop; DEGENERATE MODES; SIZE-REDUCTION; RESONATOR;
D O I
10.1002/mop.25454
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 dual-mode bandpass filter is proposed that is composed of a meandering resonator and a small rectangular loop for the purpose of perturbation. Both the length and width of the rectangular loop could control the dual-mode resonant frequencies. A prototype filter is designed and fabricated with a center frequency of 2.45 GHz. The measured fractional bandwidth is 10.98%, insertion loss is 0.8 dB, and return loss is over 15 dB. which are in good agreement with the simulated results. (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2356-2359,2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25454
引用
收藏
页码:2356 / 2359
页数:4
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