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A Rat-Race-Type Directional Coupler for Loose Coupling
Isao OHTA Hiroshi TANIGUCHI Takenori KANEKO
IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/04/25
Print ISSN: 0000-0000
Type of Manuscript: Special Section LETTER (Special Issue: Papers from 1988 Spring Convention IEICE)
Category: Electromagnetic Theory and Microwave Circuits
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A 5λ/2 rat-race-type directional coupler for arbitrary power divisions with high isolation and a method of improvement on its matching bandwidth are described. A close agreement between the theoretical and measured scattering parameters is observed also.