논문 해외 국제전문학술지(SCI급) Ka-Band Shaped Reflector Hybrid Antenna Illuminated by Microstrip-Fed Horn Array
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2008-12
- 저자명 Jung, YB공동(제1),Park, SO
- 학술지명 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
- 발행처명 IEEE
- 발행국가 해외
- 논문언어 외국어
홈페이지논문 초록 (Abstract)
The numerical simulation and experimental results of a shaped reflector hybrid antenna (SRHA) structure are presented. The SRHA design was optimized for a scan range of plusmn3deg for a broadside of 45deg in elevation to maintain a gain of more than 38 dBi and low side-lobes. The designed SRHA has an aperture size of less than 60 times 70 m 2 and an offset structure for a low profile to meet the need for a mobile satellite platform. The antenna geometry and reflector surface was determined by a geometrical optic (GO) method and the radiation pattern was obtained by physical optic (PO) analysis. A microstrip horn array was used as a feeder and was composed of eight elements. The number of array elements was chosen so as to maximize antenna performances, such as gain and efficiency, without overdesign. The SRHA breadboard, including a shaped reflector and a feed horn array, was fabricated and measured. The measured results showed good agreement with the simulation and met the performance required of SRHA.