NDLI: Characteristic Impedances of Multiconductor Strip Transmission Lines

Content Provider	IEEE Xplore Digital Library
Author	Duncan, J.W.
Copyright Year	1963
Description	The design of certain log-periodic microwave circuit elements requires a knowledge of the characteristic impedances of a system of four-coupled strip transmission lines. The system of four strip conductors between parallel ground planes is capable of supporting four different TEM modes which have different characteristic impedances. In this paper, the characteristic impedances of the four modes are determined by a variational method. The variational solution is an upper bound to the exact characteristic impedance of the line. In general, the coplanar strip conductors are located at an arbitrary (but identical) displacement from the parallel ground planes. When the separation between the broadside-coupled strips is precisely one-half the spacing between the parallel ground planes, two of the mode impedances may be determined exactly by means of conformal mapping. The variational solutions are compared to the exact solutions for this special case. Because of the "cell image" principle which holds for the problem, the mode solutions presented here also apply to various single- and two-conductor strip transmission lines with arbitrary displacements. As a result, solutions for the following strip line configurations are available from the analysis: a single strip conductor in a trough, or between parallel ground planes; two coplanar strips between ground planes; two broadside-coupled strips in a trough, or between parallel ground planes. An extensive set of curves are presented which show the characteristic impedances of the four modes as a function of the relative dimensions of the strip transmission line.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	107
Ending Page	118
Page Count	12
File Size	940433
File Format	PDF
ISSN	00189480
Volume Number	13
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1965-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impedance Strips Multiconductor transmission lines Conductors Coplanar transmission lines Distributed parameter circuits Capacitance Electromagnetic waveguides Waveguide junctions Microwave circuits
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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

Uniplanar hybrid couplers using asymmetrical coplanar strip lines

Characteristic Impedance of the Shielded-Strip Transmission Line

Symmetric Strip Transmission Line Tee Junction

Ultra low impedance CPW transmission lines for multilayer MMICs

Broadband Transition Between Double-Sided Parallel-Strip Line and Coplanar Waveguide

Coupled Strip Transmission Line with Three Center Conductors

3-D low-loss coplanar waveguide transmission lines in multilayer MMICs

A wideband vertical transition between co-planar waveguide and parallel-strip transmission line

Analysis of asymmetric coplanar waveguide with conductor backing

Characteristic Impedances of Multiconductor Strip Transmission Lines

Similar Documents

Uniplanar hybrid couplers using asymmetrical coplanar strip lines

Characteristic Impedance of the Shielded-Strip Transmission Line

Symmetric Strip Transmission Line Tee Junction

Ultra low impedance CPW transmission lines for multilayer MMICs

Broadband Transition Between Double-Sided Parallel-Strip Line and Coplanar Waveguide

Coupled Strip Transmission Line with Three Center Conductors

3-D low-loss coplanar waveguide transmission lines in multilayer MMICs

A wideband vertical transition between co-planar waveguide and parallel-strip transmission line

Analysis of asymmetric coplanar waveguide with conductor backing

Characteristic Impedances of Multiconductor Strip Transmission Lines