Ultra-compact bandpass filter with super wide upper stopband

被引：0
|
作者：
Xiong, Yang [1 ]
Zhang, Wei [2 ]
Wang, Li-Tian [3 ]
机构：
[1] Southwest China Institute of Electronic Technology, Chengdu,610036, China
[2] Chongqing Acoustic-Optic-Electronic Company, China Electronics Technolo, gy Group Corporation, Chongqing,400060, China
[3] College of Electronic Information and Optical Engineering, Nankai University, Tianjin,300350, China
来源：
Progress in Electromagnetics Research Letters | 2020年 / 92卷
关键词：
Resonators;
D O I：
暂无
中图分类号：
TN713 [滤波技术、滤波器];
学科分类号：
摘要：
—An S-band bandpass filter based on quarter wavelength stepped-impedance resonators (SIRs) is presented in this paper. Two SIRs are loaded to the BPF to obtain wide stopband suppression. The center frequency f0 of the bandpass filter is located at 2.105 GHz with 3-dB fraction bandwidth (FBW) of 11.9%. It shows that the spurs free upper stopband with 15 dB rejection level can extend to 40 GHz (19f0 ). The circuit size of this filter is extremely compact, which occupies only 7.35 mm×7.5 mm. © 2020, Electromagnetics Academy. All rights reserved.
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页码：61 / 67
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