NDLI: External Q computation by fuzzy inference method; Application to microstrip filter design

Content Provider	IEEE Xplore Digital Library
Author	Rezaee, P. Esfahani, N.N. Tayarani, M.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. Eng., Iran Univ. of Sci. & Technol. Narmak, Tehran (Rezaee, P.; Esfahani, N.N.; Tayarani, M.)
Abstract	Coupling factor of a resonator to an external circuit is described by the external Q which is an important parameter for designing microwave filters. Analytical computation of external Q needs exact determination of the field distribution around the coupling port. But the complexities of I/O ports in microwave/millimeter wave filters make this procedure a very complicated process. On the other hand lack of analytical solution for field distribution in some kinds of resonators such as square open loop resonators cause to increase the complexity of external Q computation. In this paper a very fast and accurate fuzzy inference method is implemented to overcome this drawback. The fuzzy modeling method is explained and a four pole Chebychev filter is designed as an example to show the accuracy and efficiency of the introduced method. The simulated response of the designed filter is compared with an ideal four pole Chebychev one. The results are in a very good agreement.
Starting Page	971
Ending Page	974
File Size	567224
Page Count	4
File Format	PDF
ISBN	9781424418794
DOI	10.1109/ICMMT.2008.4540570
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microstrip filters Resonator filters Microwave filters Feeds Q factor Microwave theory and techniques Distributed computing Computational modeling Fuzzy systems Resonant frequency
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in