A New Technique for Suppressing the Sidelobe due to Reflected Wave in the Traveling-Wave Slot Array

진행파 슬롯 배열 안테나에서 반사파에 의한 부엽을 억제하기 위한 새로운 기법

  • Chae, Bum-Yong (Dept. of Radio Eng., Graduate School, Chungbuk National University) ;
  • Park, Dong-Hee (School of Electrical, Electronics and Information Eng., Chungju University) ;
  • Ahn, Bierng-Chearl (Dept. of Radio Eng., Graduate School, Chungbuk National University)
  • Published : 2004.02.01

Abstract

A new techique is proposed for suppressing sidelobes due to the wave reflected from the waveguide end in the traveling-wave slot array. In this approach we use multiple sections of reduced-height waveguide with the final section terminated with a short circuit instead of the conventional matched load. To show the validity of the proposed method, a Ku-band slotted waveguide is fabricated and tested. Measurements confirm the excellent sidelobe suppressing capability of the proposed method.

진행파 슬롯 배열 안테나에서 반사파에 의한 부엽을 억제하기 위한 새로운 방법을 제안한다. 이 방법에서는 통상적으로 사용되는 정합부하 대신에 여러 단의 높이가 감소한 도파관과 마지막 단에 연결된 단락회로가 사용되었다. 제안된 방법의 타당성을 보이기 위해 Ku-대역에서 동작하는 도파관 슬롯 안테나를 제작 시험하였다. 측정결과로부터 제안된 방법을 사용하여 반사파에 의한 부엽을 억제할 수 있음을 확인하였다.

Keywords

References

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