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. <IMAGE></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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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