The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Designof asymmetrical coupled microstrip directional coupler on composite dielectric substrates

복합 유전체기판상에 비대칭 결합 마이크로스트립 방향성 결합기의 설계

  • Published : 1997.09.01
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Abstract

The mode parameters of asymmetrical coupled microstrip lines on composite substrates are derived by using closed form expression. A 10 dB directional couplers, where the center frquency is 1.8 GHZ, are fabricated on a single-layer substrate and on compsite substrates respectively. It is shown that coupler on a single-layer substrate.

Closed form 해석 방법을 이용하여 복합기판상에 비대칭 결합 마이크로스트립 선로의 모드 파라미터를 구하였다. 단층기판과 복합기판상에 대칭 및 비대칭 결합 마이크로스트립 선로을 이용하여 방향성 결합기를 실현시켰다. 중심주파수 1.8GHz에서 10dB 방향성 결합기를 제작하여 측정한 결과, 복합기판을 갖는 결합기는 단층기판을 이용한 결합기보다 결합도와 방향성도가 개선되었다. 또한 비대칭 결합 마이크로스트립 선로를 이용한 결합기의 대역폭이 대칭 결합 마이크로스트립 선로를 이용한 결합기보다 대역폭이 넓다는 것을 확인하였다.

Keywords

References

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