发明名称 Satellite antenna system.
摘要 <p>The invention relates to a satellite antenna system, particularly for land mobile voice communications, provided with a radiator unit (1), which is steerable to the satellite in the azimuth plane. According to the invention, the radiator unit (1) comprises two antenna elements (14, 15) and a ground plane (16); the said elements are formed of circular, planar, conductive plates and terminated to a load; they are turned at an angle of 180 DEG with respect to each other and evenly spaced at a standard distance from the ground plate. The radiator unit is used for receiving and transmitting circularly polarized electromagnetic radiation. &lt;IMAGE&gt;</p>
申请公布号 EP0540125(A1) 申请公布日期 1993.05.05
申请号 EP19920203337 申请日期 1992.10.29
申请人 VALTION TEKNILLINEN TUTKIMUSKESKUS 发明人 AURINSALO, JOUKO;HUHTINEN, ISMO;HUJANEN, ARTO;LAUKKANEN, KALEVI;MARTTILA, ILKKA;MUTANEN, RISTO;PITKAENEN, ILKKA;SALMINEN, TAPIO;TALLQUIST, STEFAN
分类号 H01Q1/32;H01Q3/08;H01Q9/04 主分类号 H01Q1/32
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