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The Design of S-band Broadband Directional Coupler

Zheng Cheng

Abstract

The broadband S-band high-directivity 10 dB directional coupler design is introduced,and designes a(2～3) GHz directional coupler using the structure of parallel lines directionally coupling,the coupler which is designed has straight-through pass-band transmission coefficient of(-0.58～-0.69) dB,the coupling coefficient of(9.27～9.57) dB,(isolation) port Isolation ≥20 dB.

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Available abstract

Key concepts: Directivity, Hybrid coupler, Power dividers and directional couplers, Broadband, Rat-race coupler, Coupling coefficient of resonators, Port (circuit theory), Coupling (piping)