Compact Bandpass-to-Bandstop Reconfigurable Filter With Wide Tuning Range

被引：37
作者：
Fan, Maoyu [1 ]
Song, Kaijun [1 ]
Zhu, Yu [1 ]
Fan, Yong [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, EHF Key Lab Sci, Chengdu 611731, Sichuan, Peoples R China
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2019年 / 29卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Bandpass filter; bandstop filter; compact; reconfigurable filter; wide tuning range; FREQUENCY;
D O I：
10.1109/LMWC.2019.2892846
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 compact reconfigurable bandpass-to-bandstop filter with wide tuning range is presented. The bandpass-to-bandstop transformation is achieved by a p-i-n diode. In the bandstop mode, the two-pole bandstop response is obtained by introducing the inductive coupling between the two resonators of the notch filter. In the bandpass mode, the center frequency and an external quality factor are controlled by two pairs of varactors. A pair of transmission zeros is generated by two transmission paths, which improves the selectivity. The fabricated filter demonstrates a wide frequency tuning range with a miniaturized circuit size of 0.16 lambda(g) x 0.11 lambda(g). The simulated and experimental results are presented with good agreement.
引用
收藏
页码：198 / 200
页数：3
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