A Compact UWB Band-Pass Filter Using Embedded Circular Slot Structures for Improved Upper Stop-band Performance

Ming Shen, Jian Ren, Jan Hvolgaard Mikkelsen, Xianfeng Liang, Ole Kiel Jensen, Minggui Ai, Gert F. Pedersen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2 Citations (Scopus)

Abstract

This paper presents an ultra-wideband band-pass filter designed using a slot-line ring resonator and two pairs of embedded circular slot structures. The slot-line ring resonator is used to form the desired UWB passband, and the upper stop-band response is suppressed by embedding the circular slot structures into the ring resonator. This is different from conventional designs using cascaded bandstop/low-pass filters for stop-band response suppression, which usually leads to big circuit sizes. And hence the proposed approach can reduce the circuit size significantly. A prototype filter with a compact size (13.6 mm×6.75 mm) has been implemented for experimental validation. The measured results show a −3 dB frequency band from 3.4 GHz to 11.7 GHz and > 20 dB upper stop-band suppression from 12.5 GHz to 20GHz.
Original languageEnglish
Title of host publication16th IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB 2016)
Place of Publication2016 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)
PublisherIEEE Press
Publication date2016
ISBN (Print)978-1-5090-1318-0
ISBN (Electronic)978-1-5090-1317-3
DOIs
Publication statusPublished - 2016
Event16th IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB 2016) - Nanjing , China
Duration: 16 Oct 201619 Oct 2016

Conference

Conference16th IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB 2016)
CountryChina
CityNanjing
Period16/10/201619/10/2016

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