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Four-way Gysel power divider/combiner with back-to-back configuration for dual-band operation

Published online by Cambridge University Press:  17 October 2017

Elham Moradi ,
Ali-Reza Moznebi ,
Kambiz Afrooz  and
Masoud Movahhedi
Elham Moradi
Affiliation:
Department of Electrical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran. Phone: +98 34 31322516
Ali-Reza Moznebi
Affiliation:
Department of Electrical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran. Phone: +98 34 31322516
Kambiz Afrooz*
Affiliation:
Department of Electrical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran. Phone: +98 34 31322516
Masoud Movahhedi
Affiliation:
Department of Electrical Engineering, Yazd University, Yazd, Iran
*
Corresponding author: K. Afrooz Email: afrooz@uk.ac.ir
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Abstract

In this paper, a four-way dual-band Gysel power divider (GPD)/combiner based on a back-to-back microstrip structure method is proposed and investigated. A two-layer substrate is adopted to implement this PD. In order to divide the input signal into four equivalent signals, the input and four output ports of the proposed PD are placed on the top and the four external isolation resistors are placed on the bottom layer of the substrate. Furthermore, the dual-band response is achieved by adding a short-circuit stub and an open-circuit stub to the structure. Then, the theoretical closed-form design formulas are derived based on the considered conditions and circuit transmission line theory. Finally, for verification purpose, a prototype PD is designed, fabricated, and measured which works at dual frequencies of 1 and 2 GHz simultaneously. The good agreement between simulation and measurement results, which show good impedance matching, isolation, as well as power transmission, verifies the correctness of the design theory.

Keywords

Microwave Passive componentsHigh Power applicationsGysel power dividerfour way divider
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 10 , Special Issue 2: EuCAP 2017 , March 2018 , pp. 265 - 270
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2017 

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References

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