NDLI: Compact sharp-rejection broadband microstrip bandpass filter with wide stopband

Content Provider	IEEE Xplore Digital Library
Author	Jyun-Yi Wu Wen-Hua Tu
Copyright Year	2011
Description	Author affiliation: Department of Electrical Engineering, National Central University, Jhongli, Taoyuan, 32001, Taiwan (Jyun-Yi Wu; Wen-Hua Tu)
Abstract	A compact sharp-rejection broadband microstrip bandpass filter with a wide stopband is presented. The major building block of the proposed filter is a half-wavelength resonator loaded by a meandering coupled line. The loaded resonator could provide three transmission poles in the passband and two transmission zeros beside the passband. By adjusting the dimensions of the meandering coupled line and using multi-path cancellation technique, one can control multiple transmission zeros for a wide stopband. Analysis and experimental results are included in this paper. From 2.3 to 4.1 GHz, the measured return loss is greater than 15 dB, and the measured insertion loss is less than 0.8 dB. The maximum group delay variation is 0.8 ns, and the core circuit size is $0.05.λ^{2}$ at the center frequency. For the upper stopband performance, the rejection level is greater than 20 dB from 4.3 GHz to 10 GHz.
Starting Page	1
Ending Page	4
File Size	1350756
Page Count	4
File Format	PDF
ISBN	9781612847542
ISSN	0149645X
e-ISBN	9781612847573
e-ISBN	9781612847566
DOI	10.1109/MWSYM.2011.5972604
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Bandwidth Filtering theory wide stopband Broadband bandpass filter transmission zero
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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