한국항해항만학회:학술대회논문집 (Proceedings of the Korean Institute of Navigation and Port Research Conference)
- 한국항해항만학회 1996년도 The Korean Institute of Navigation 1996년도 한·중 국제학술 심포지움 및 추계학술발표회 논문집
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- Pages.89-94
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- 1996
고성능 하이브리드 방향성결합기의 설계 및 제작에 관한 연구
A Study on the Design and Fabrication of Hybrid-Ring Directional Couplers with High Performance
초록
In this paper A methode for design of hybrid-ring couplers having sections of lenth λ/n is proposed. Assuming only one - axis symmitry and isolation of output arms general expressions for the scattering parameters are obtained. The new design method using λ/n sections for 3 dB couplers is derived, . The calculated frequency reponse of the new design has been compared with that of conventional ones, . A new design using λ/5 section and having an overall length 13λ/10 is found to be superior to the 7λ/6 design is expected to have a low insertion loss by virtue of its shorter length.
키워드