A Compact Dual-Wideband Bandpass Filter Based on Open-/Short-Circuited Stubs

被引：34
作者：
Liang, Gen-Zhu [1 ]
Chen, Fu-Chang [1 ]
机构：
[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Peoples R China
来源：
IEEE ACCESS | 2020年 / 8卷
关键词：
Dual-band bandpass filters; microstrip; stub; wideband; STEPPED-IMPEDANCE RESONATORS; DESIGN;
D O I：
10.1109/ACCESS.2020.2968518
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A dual-wideband bandpass filter is proposed and analyzed, which is based on loaded open-/short-circuited stubs. The dual-band filter consists of a second-order bandpass filter and a third-order bandpass filter, which can be designed separately. The bandwidth of two passbands can be adjusted by tuning the impedance and the length of the stubs. A dual-band bandpass filter prototype operating at 2.4/5.2 GHz is designed for demonstration. It shows a low insertion loss of 0.3 dB and wide bandwidth of 51.9; at 2.4 GHz and 23.3; at 5.2 GHz. The filter structure is simple without narrow coupling gap between resonators, which is easy for fabrication.
引用
收藏
页码：20488 / 20492
页数：5
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