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A Dual-Mode Dual-Band Bandpass Filter with Novel Perturbation Element Using Open Loop Resonator

被引：0
|
作者：
Shi, Xiaomin [1 ]
Xi, Xiaoli [1 ]
Wu, Daocheng [2 ]
机构：
[1] Xian Univ Technol, Dept Elect Engn, Xian 710048, Peoples R China
[2] Xi An Jiao Tong Univ, Xian 710048, Peoples R China
来源：
2014 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP) | 2014年
关键词：
Dual-mode; dual band; open-circuited stubs; square loop 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：
A novel dual-mode dual-band bandpass filter (BPF) is proposed by placing a couple of open-circuited stubs in each corner of the square loop resonator. The two degenerate modes are excited by moving the gaps between the ends of the two open stubs to obtain perturbation effect. No extra perturbation element is needed resulting in flexibility in tuning dual-mode characteristic and a compact structure. The proposed dual-mode dual-band bandpass filter operating at 1.8GHz and 4.6GHz is simulated, fabricated and measured. The 3dB fractional bandwidths are 2.5% and 4.3% for the two passbands respectively. The experimental results agree well with the predicted ones.
引用
收藏
页码：179 / 180
页数：2
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