Journal of the Korean Institute of Telematics and Electronics A (전자공학회논문지A)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Analysis and Design of the Spirally Slotted Array Antenna

나선형 슬랏배열 안테나의 특성해석 및 설계

  • 민이규 (한양대학교 전자통신공학과) ;
  • 양두영 (한양대학교 전자통신공학과) ;
  • 이상설 (한양대학교 전자통신공학과)
  • Published : 1991.10.01
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Abstract

In this paper, the analysis and design of a spirally slotted array antenna with high efficiency are presented. Electric fields in the slots are calculated by electromagnetic fields in the upper waveguide and radiation field equations are derived. Slots are arrayed spirally on the upper circular plate of twofold radial waveguide. In order to suppress grating lobes from the array, a slow wave structure is inserted in the upper waveguide. This antenna is characterized by a good circular polarization, high efficiency of 75 percent and grating lobes below -34dB.

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