NDLI: Miniaturized high-performance UWB bandpass filter consisting of only one microstrip three-mode resonator

Content Provider	IEEE Xplore Digital Library
Author	Zhewang Ma Wenqing He Chun-Ping Chen Anada, T.
Copyright Year	2009
Description	Author affiliation: High-Tech Research Center, Kanagawa University, Japan (Chun-Ping Chen; Anada, T.) \|\| School of Communication and Information Engineering, Shanghai University, China (Wenqing He) \|\| Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan (Zhewang Ma)
Abstract	A novel ultra-wideband bandpass filter is developed by using one microstrip three-mode resonator. The new resonator is configured by adding a short-circuited stub and an open stub to a half-wavelength resonator, and its first three modes are designed to cover a very wide passband. The resonator is fed by parallel-coupled quarter-wavelength lines. As a consequence, five reflection zeros are obtained in the passband covering approximately 3.4–10.15GHz. As the filter consists of only one resonator, it is very small and low loss, with measured insertion loss better than 0.6 dB in the passband. The group delay is very flat over the passband, and is about 0.5ns at the center frequency. Moreover, the filter has multiple transmission zeros near its passband, and exhibits thereby sharp skirt property. The minimum strip-width and gap-width in the filter is 0.2mm and 0.1mm, respectively, and no complicated backside-aperture-fabrication process is required. So the filter can be fabricated easily at low cost. The measured frequency response of the filter agrees favorably with the predicted one, and the FCC's indoor limit is satisfied well.
Starting Page	303
Ending Page	306
File Size	1101593
Page Count	4
File Format	PDF
ISBN	9781424447480
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-29
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	EUMA
Subject Keyword	Band pass filters Microstrip filters Microstrip resonators Passband Filtering theory Resonator filters Insertion loss Ultra wideband technology Reflection Loss measurement
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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