The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Multibeam Pattern Synthesis of Planar Array Antenna

평면 배열 안테나에 의한 다중 빔 복사 패턴의 합성

  • Hur, Moon-Man (Department of Electronic Engineering, Dongguk University) ;
  • Lee, In-Jae (Department of Electronic Engineering, Dongguk University) ;
  • Yoon, Hyun-Bo (Department of Electronic Engineering, Dongguk University)
  • 허문만 (동국대학교 전자공학과) ;
  • 이인재 (동국대학교 전자공학과) ;
  • 윤현보 (동국대학교 전자공학과)
  • Published : 2006.10.31
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Abstract

In this paper, the synthesis method of multibeam radiation pattern with multi-directional beams and nulls is proposed. Genetic algorithm is applied for the optimization of amplitude and phase of the feeding signal into each element that is structured in planar array of single patch antenna with an arbitrary field distribution. To verify the validity of the proposed method, $2{\times}2$ planar array antenna is used for the measurement and the measured far field radiation pattern is compared with the simulation result. As a result, the synthesis of multibeam radiation pattern is implemented by the optimization of amplitude and phase of the feeding signal into each element of $8{\times}8$ planar array antenna system.

임의의 필드 분포를 갖는 단일 페치 안테나를 평면 배열하고 각 소자에 공급되는 급전 신호의 크기와 위상을 유전자 알고리즘으로 최적화하여, 여러 방향의 지향성과 널을 갖는 다중 빔 복사 패턴의 합성 방법을 제안하였다. 제안된 방법의 유효성을 확인하기 위해서, $2{\times}2$ 평면 배열 안테나를 제작하고 원거리 복사 패턴의 계산 결과와 측정 결과를 비교하여 동일한 특성을 확인하였으며, 다중 빔 복사 패턴의 합성은 $8{\times}8$ 배열 안테나 시스템을 이용하여, 시뮬레이션을 통해서 각 소자의 급전 신호의 크기와 위상을 최적화하였다.

Keywords

References

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