Analysis of a Substrate Integrated Waveguide Hybrid Ring (Rat-Race) Coupler
Joint Authors
Dehdasht-Heydari, Ramin
Naser-Moghadasi, Mohammad
Forooraghi, Keyvan
Source
International Journal of Antennas and Propagation
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-28
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
This paper presents an efficient analysis of a substrate integrated waveguide (SIW) single-layer hybrid ring coupler (rat-race) for millimeter-wave and microwave applications.
The scattered field from each circular cylinder is expanded by cylindrical eigenfunctions with unknown coefficients that have been solved by electric and magnetic tangential boundary on each metallic via.
The coupler S-matrix is calculated by using mode matching that uses the cylindrical vector expansion analysis to minimize the computational time and provides more physical insight.
To achieve higher bandwidth, the radiuses of the coupler under analysis have been optimized in Matlab code by invasive weed optimization (IWO) method, and the results have been verified by CST package.
The return loss and the isolation are less than −15 dB, and −18 dB, respectively.
The insertion loss is divided equally - 3 ± 0.2 dB, with 0 ± 5 and 180 ± 10 degrees in output ports over the operating frequency bandwidth and the agreement of phase differences in output ports has been examined objectively by feature selective validation (FSV) technique.
American Psychological Association (APA)
Dehdasht-Heydari, Ramin& Forooraghi, Keyvan& Naser-Moghadasi, Mohammad. 2014. Analysis of a Substrate Integrated Waveguide Hybrid Ring (Rat-Race) Coupler. International Journal of Antennas and Propagation،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1036222
Modern Language Association (MLA)
Dehdasht-Heydari, Ramin…[et al.]. Analysis of a Substrate Integrated Waveguide Hybrid Ring (Rat-Race) Coupler. International Journal of Antennas and Propagation No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1036222
American Medical Association (AMA)
Dehdasht-Heydari, Ramin& Forooraghi, Keyvan& Naser-Moghadasi, Mohammad. Analysis of a Substrate Integrated Waveguide Hybrid Ring (Rat-Race) Coupler. International Journal of Antennas and Propagation. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1036222
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036222