Dual-wideband BPF with wide upper stopband using shorted stepped-impedance stub-loaded lowpass filter

被引：13
|
作者：
Yang, Qian [1 ]
Jiao, Yong-Chang [1 ]
Zhang, Zheng [1 ]
机构：
[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China
来源：
ELECTRONICS LETTERS | 2016年 / 52卷 / 19期
关键词：
band-pass filters; low-pass filters; poles and zeros; UHF filters; microwave filters; dual-wideband BPF; wide upper stopband; shorted stepped-impedance stub-loaded lowpass filter; dual-wideband bandpass filter; transmission zeros; stub dimension parameter tuning; TZ control; frequency; 1; 08; GHz; 3; 05;
D O I：
10.1049/el.2016.2475
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-wideband bandpass filter (BPF) using shorted stepped-impedance stub-loaded lowpass filter is proposed. The stub introduces two transmission zeros (TZs) to divide the low passband into dual-passband. By tuning the stub dimension parameters to control the TZs, the centre frequency and bandwidth (BW) for each passband can be tuned flexibly, and wide upper stopband can be realised. For demonstration, a dual-wideband BPF operating at 1.08 and 3.05 GHz is designed, fabricated, and measured, and its 3 dB fractional BWs are 103.2 and 48.5%, respectively. The measured results are in good agreement with the simulated ones.
引用
收藏
页码：1615 / 1616
页数：2
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