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A Study on the Conformal Array Beam Synthesis Technique for Integrated Mast Application

통합마스트 적용을 위한 컨포멀 어레이 빔 합성 기법에 관한 연구

  • Received : 2020.05.27
  • Accepted : 2020.06.10
  • Published : 2020.06.30

Abstract

In this paper, a study on beam synthesis technique of conformal array was performed. It is applied to various radar systems that can perform beam steering without deterioration of performance due to beam steering in a general linear arrangement. Unlike the beam synthesis technique in the planar linear array, the conformal array has a radiation element located on a curved surface, so it is necessary to compensate for a difference in length from the radaation element to the wave front surface. In addition, by calculating the offset angle for each radiation element and applying it during actual synthesis, it was possible to predict an accurate beam pattern. In this paper, length compensation and offset angle were calculated and applied to beam pattern synthesis to perform beam pattern comparison, and performance was compared through mathematical analysis.

본 논문에서는 컨포멀 어레이(Conformal Array) 빔 합성 기법에 관한 연구를 수행하였다. 일반적인 선형 배열에서의 빔 조향에 따른 성능 열화 없이 빔 조향을 수행할 수 있는 컨포멀 어레이는 다양한 레이다 시스템에 적용되고 있다. 평면형 선형 배열에서의 빔 합성 기법과 달리 컨포멀 배열은 곡면상에 복사소자가 위치하므로 복사소자별로 파면(Wave Front)까지의 위상을 보상해 주어야 한다. 또한 복사소자별 옵셋 각도(Offset Angle)를 계산하여 실제 q빔 합성 시 적용함으로서 정확한 빔 패턴을 예측할 수 있었다. 본 논문에서는 위상 보상 및 옵셋 각도를 계산하여 빔 패턴 합성 시 적용한 후 빔 패턴 비교를 수행하였으며, 수학적인 분석을 통해 성능을 비교하였다.

Keywords

References

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