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A New small size 3-dB 180° Microstrip Ring couplers

Applied Computational Electromagnetic society conference • 2003
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Publication Information
Authors Not Available
Keywords Ring coupler, microstrip, small size
Journal Applied Computational Electromagnetic society conference
Publisher Not Available
Volume 1
Issue 1
Pages Not Available
publication.type International
Paper Link Not Available
Supplementary Materials Not Available
Abstract
New small size 3 dB microstrip 0o/180o coupler configurations are proposed and
discussed. The coupler can be fabricated in square or ring form. The ring may be
designed for symmetrical ports about either one axis or two axes. The proposed
configurations introduce significant size reduction, which is the most important
demand for microwave integrated circuits (MICs) and monolithic microwave
integrated circuits (MMICs). Different couplers are designed, and simulated at 900
MHz. The designed coupler in square shape is simulated and implemented.
Experimental results agree quit well with theoretical predicti