NDLI: Compact planar ultra-wideband (UWB) bandpass filter with notched band

Content Provider	IEEE Xplore Digital Library
Author	Qi Li Chang-Hong Liang Hai-Bin Wen Guo-Chun Wu
Copyright Year	2009
Description	Author affiliation: National Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi'an, China (Qi Li; Chang-Hong Liang; Hai-Bin Wen; Guo-Chun Wu)
Abstract	This paper presents a compact planar microstrip ultra-wideband (UWB) bandpass filter (BPF) with notched band for the use in UWB wireless communication applications set by Federal Communications Commission (FCC). Three coupled lines and quarter-wave short-circuited shunt stubs are used to realize a bandpass filter with high selectivity. The narrow notched band was introduced to reject the undesired wireless local-area network (WLAN) radio signals by employing embedding open stubs. The bandwidth of the notched filter can be controlled by adjusting the width or length of the slot. The proposed component has been designed, simulated and fabricated for verification. Simulation results are confirmed via experiment, showing good wideband filtering performance with notched band. The measured insertion loss is less than 1.6 dB, the return loss is more than 15 dB, and the variation of group delay is less than 0.4 ns throughout the passband except for the notched band 5-6 GHz. The attenuation is more than 28 dB at the center frequency of notched band.
Starting Page	257
Ending Page	260
File Size	805723
Page Count	4
File Format	PDF
ISBN	9781424428014
DOI	10.1109/APMC.2009.5385380
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-07
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultra wideband technology Band pass filters FCC Microstrip filters Wireless communication Local area networks Wireless LAN Bandwidth Communication system control Filtering embedding open stubs Ultra-wideband bandpass filter notched band short shunt stubs
Content Type	Text
Resource Type	Article

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