Size-reduced rectangular patch hybrid coupler using patterned ground plane

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Original languageEnglish
Article number4711150
Pages (from-to)180-188
Journal / PublicationIEEE Transactions on Microwave Theory and Techniques
Issue number1
Publication statusPublished - Jan 2009


This paper presents, for the first time, the design of a size-reduced rectangular patch hybrid coupler. Different types of compact rectangular patch hybrid couplers with different ground plane patterns are described. For demonstration, two compact rectangular patch hybrid couplers are designed to operate at 3.5 GHz. They are measured to have 30.1% and 33.3% bandwidth with 67.3% and 72.3% size reduction compared with the optimized one without patterned ground plane. © 2008 IEEE.

Research Area(s)

  • 3-dB hybrid coupler, Patterned ground plane structure, Rectangular patch hybrid coupler

Citation Format(s)