2008•Unpublished venueRequires access

New High Directivity Coupler Design Using Feed-forward Compensation Technique

Souheil Bensmida, Fadhel M. Ghannouchi

Abstract

In this paper, an original high directivity directional coupler is presented. The proposed structure consists of a dual-directional coupler connected at its coupled terminations to a feed-forward compensation circuit. The compensation circuit is used to increase the coupler isolation factor of the obtained directional coupler. The directivity of a commercial dual-directional coupler has been improved by 40 dB using the proposed method.

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Available abstract

Key concepts: Directivity, Hybrid coupler, Power dividers and directional couplers, Compensation (psychology), Rat-race coupler, Computer science, Electronic engineering, Acoustics