Wideband Differential-Mode Bandpass Filters With Stopband and Common-Mode Suppression

被引：20

作者：

Aliqab, Khaled ^{[1
]}

Hong, Jiasheng ^{[1
]}

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2020年 / 30卷 / 03期

关键词：

Wideband; Passband; Loss measurement; Frequency measurement; Microwave circuits; Band-pass filters; Couplings; Balanced bandpass filters (BPFs); common-mode suppression; ultrawideband (UWB);

D O I：

10.1109/LMWC.2020.2968769

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：

This letter presents wideband differential-mode (DM) bandpass filters (BPFs) designed on a microstrip line for ultrawideband (UWB) applications. The proposed design is based on an optimized branch-line structure with extended transmission lines (TLs). An enhanced performance can be obtained using a very simple design approach. The introduced TLs can be used for improving the DM stopband response by introducing multiple transmission zeros (TZs) at the lower and upper stopband. The common-mode rejection level can also achieve around 40 dB within the band of interest. The proposed filters are fabricated for experimental verification. The predicted and measured results show a very good agreement.

引用

页码：233 / 236

页数：4

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