Design Methodology for Six-Port Equal/Unequal Quadrature and Rat-Race Couplers With Balanced and Unbalanced Ports Terminated by Arbitrary Resistances

Jiao, Lingxiao, Wu, Yongle, Zhang, Weiwei, Li, Mingxing, Liu, Yuanan, Xue, Quan and Ghassemlooy, Zabih (2018) Design Methodology for Six-Port Equal/Unequal Quadrature and Rat-Race Couplers With Balanced and Unbalanced Ports Terminated by Arbitrary Resistances. IEEE Transactions on Microwave Theory and Techniques, 66 (3). pp. 1249-1262. ISSN 0018-9480

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Official URL: http://dx.doi.org/10.1109/TMTT.2017.2778108

Abstract

For the first time, the 6-port quadrature and rat-race couplers with balanced-unbalanced-hybrid ports are proposed. The corresponding design methodology is presented, which is capable of designing the proposed couplers with arbitrary power divisions and terminated resistances. In this paper, four types including quadrature and rat-race couplers are fully analyzed, covering all the application configurations of the balanced/unbalanced ports. Besides, the design equations are rigorously derived, with the final design procedures presented. Eventually, prototypes of the four coupler types are fabricated and experimentally measured. The final results sufficiently validate the proposed methodology.

Item Type: Article
Uncontrolled Keywords: Balanced circuit, balanced-to-unbalanced circuit, coupler, quadrature, rat race
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 26 Jun 2018 10:55
Last Modified: 26 Jun 2018 11:45
URI: http://nrl.northumbria.ac.uk/id/eprint/34709

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