NDLI: Evaluation of a low cost procedure to perform a transmission line matching for lab courses

Content Provider	IEEE Xplore Digital Library
Author	Gedraite, E.S.
Copyright Year	2012
Description	Author affiliation: Escola Politecnica, Universidade de Sao Paulo, Sao Paulo, Brazil (Gedraite, E.S.)
Abstract	This paper focusess on the investigation of a planar structure using a low cost and hand made kit proposed in literature. The focus of the study in a educational kit to investigate transmission lines, basic circuit elements that are very important in the field of telecommunications. Since the focus is educational, we evaluate the kits using the following guidelines: If the phenom is well represented in the circuit, if it is possible to understand and evaluate the event. The event here studied is the matching of a mismatched transmission line. A mismatched transmission line losses power due to reflections and therefore, is not so efficient as it could be. There are some techniques used to match transmission lines, such as one quarter wave length transformers and stub matching. In this paper we will use the stub technique due to easiness of fabrication and the possibility to use the already assembled kits. To evaluate the performance of the kits, a network analyzer were used and the return loss was measured, also called S11 parameter. The results show that at the desired frequency, the s11 parameter is really lower in the matched line than in the mismatched line, resulting in a fall of more than 15 dB, what is representative for the phenom. With this results, the study of the use of the kits for other planar structures is encouraged.
Starting Page	333
Ending Page	336
File Size	241722
Page Count	4
File Format	PDF
ISBN	9781467312431
ISSN	13342630
e-ISBN	9789537044145
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-12
Publisher Place	Croatia
Access Restriction	Subscribed
Rights Holder	ELMAR (Electronics in Marines)
Subject Keyword	Electromagnetism Impedance matching Microwave circuits Educational Kit Microstrip Impedance Mathematical model Transmission Lines Equations
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

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