Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design of L-Band Cylindrical Active Phase Array Antenna Using Bent Dipoles

접힌 다이폴 구조를 적용한 L-Band 원통형 능동 위상배열 안테나 설계

  • Lee, Man-Gyu (PGM Center, Samsung Thales) ;
  • Kwon, Ickjin (Department of Electrical and Computer Engineering, Ajou University)
  • Received : 2012.11.08
  • Published : 2013.06.25
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Abstract

In this paper, we propose a cylindrical active phased array antenna of Beam Steering Characteristics in the horizontal plane(H-plane) and vertical plane(E-Plane) on the cylinder form array structure. We design the bent dipole antenna of the cylindrical array structure adapted excellent mutual-coupling characteristics, designed and manufactured the cylindrical array antennas and power combiner/divider unit for power dividing and combining on the antenna. The radiating elements array spacing of Cylindrical array antenna were determined to avoid grating lobes at half power beam steering. Beam steering of the antenna was implemented with 6-bit phase shifter in the transceiver and have been designed based on the characteristics the antenna beam steering at -24 degrees to 24 degrees horizontal, vertical 0 degrees to 36 degrees beam steering. A cylindrical active phased array antenna that produced for verification the performance of the antenna are measured radiation characteristics in accordance with beam steering at L-Band.

본 논문에서는 원통형태의 배열구조에서 수평면(H-plane), 수직면(E-Plane) 빔조향 특성을 갖는 원통형 능동위상배열 안테나를 제안하였다. 상호결합특성이 우수한 접힌 다이폴 안테나를 원통의 배열구조에 적합하도록 설계하고, 수직과 수평으로 $8{\times}8$ 원통 배열구조를 갖는 지향성 배열안테나와 전력 분배를 위한 결합분배기를 설계 및 제작하였다. 원통배열 안테나의 복사소자 배열 간격은 반전력 빔폭과 빔 조향 시 그레이팅로브가 발생하지 않도록 결정하였다. 안테나의 빔 조향은 송수신장치 내부의 6비트 위상변위기를 이용하여 구현하였으며, 안테나 빔조향 시 수평면으로 -24도 ~ 24도, 수직면 기준으로 0도 ~ 36도의 빔조향 특성을 갖도록 고안되었다.

Keywords

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