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Characteristics of Beam-tilting Slot Array Waveguide Antennas for DBS Reception  

Min, Gyeong-Sik (한국해양대학교 공과대학 전파공학과)
Kim, Dong-Cheol (한국해양대학교 공과대학 전파공학과)
Arai, Hiroyuki (요코하마 국립대학 전자정보공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.39, no.3, 2002 , pp. 140-149 More about this Journal
Abstract
This paper describes the characteristics of beam-tilting slot away waveguide antennas for mobile DBS reception. As a basic study of slotted waveguide array, design for 16 slot elements located on a broad-wall waveguide is considered. Design parameters such as slot length, space between each slot and cross slot angle of antennas with the beam-tilting characteristics are calculated by method of moments. Based on these results, the radiation waveguide antennas with 16-element $\times$16-array are designed and fabricated. The measured main beam direction angles of the fabricated antennas are 48$^{\circ}$to 50$^{\circ}$depending on the measured frequencies and it shows good agreement with prediction. The measured 3 dB beam width of elevation pattern is about 13$^{\circ}$, and the axial ratio and the gain measured at DBS band are observed 2.8 dB below and 24 dBi above, respectively. In order to evaluate a performance of the fabricated waveguide planar antenna, it is combined with the satellite tracking control system and the field performance test of antenna mounted on a mobile vehicle is carried out at highway. During the measurement, it was possible to watch television without a break signal in a driving vehicle and an excellent performance of the proposed antennas was demonstrated.
Keywords
Beam-tilt; Slot array; Radiation waveguide; Mobile DBS reception; Satellite tracking antenna control system.;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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