发明名称 Radio appts. for portable satellite communication system - has briefcase-type base housing containing radio equipment and compass, connected by stay for angular alignment to lid with planar aerial array
摘要 The housing for the portable satellite communication transceiver is shaped as a briefcase. The lid (11) and base (10) are connected by a full length hinge and also by a stay (12) carrying markings, so that the angle of slope of the lid can be accurately regulated. Incorporated on the surface of the lid is a planar aerial array (14) and housed in the base is the radio equipment (16, 18) and a section (13) with a compass. The markings on the stay correspond to an angle between 30 and 70 degrees, preferably between 40 and 60 degrees. Instead of the single stay, an alternative stay arrangement may be used. The radiation pattern of the aerial is specified. USE/ADVANTAGE - E.g. for transcontinental satellite communication between mobile or stationary units connected to respective telephone networks; ship or land freight navigation. Easy directional alignment with satellite.
申请公布号 DE4128972(A1) 申请公布日期 1993.03.04
申请号 DE19914128972 申请日期 1991.08.31
申请人 TELEFUNKEN SYSTEMTECHNIK GMBH, 7900 ULM, DE 发明人 UHLMANN, MANFRED, DIPL.-ING. (FH), 7910 NEU-ULM, DE
分类号 H01Q1/12;H01Q1/44;H04B1/38 主分类号 H01Q1/12
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