Abstract
An analysis method for a multi-section rat-race hybrid coupler with a large bandwidth is presented. The proposed coupler has only a few additional microstrip lines compared to a single-section coupler. A complete analysis method is derived and validated through even- and odd-mode analysis, considering the asymmetric structure of the proposed coupler. To demonstrate the effectiveness of the design, two two-section rat-race couplers with an operating frequency of 2 GHz and splitting ratios of 1:1 and 1:2 were simulated and fabricated. Measurements of the fabricated couplers yielded results in good agreement with the simulation results, demonstrating wide bandwidth characteristics.
Publisher
Korean Institute of Electromagnetic Engineering and Science
Subject
Electrical and Electronic Engineering,Computer Networks and Communications,Instrumentation,Radiation
Cited by
4 articles.
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