发明名称 IN-BUILDING RADIO WAVE REPEATER REQUIRING NO POWER SOURCE
摘要 PROBLEM TO BE SOLVED: To provide an in-building radio wave repeater requiring no power source that attains radio communication, without being disturbed by a shield and obtains a maximum gain in the case of a plurality of base stations even when at least one room in two rooms going to make mutual communication is surrounded by a radio wave shield, otherwise, causing disabled communication due to interruption of radio communication radio waves. SOLUTION: In the in-building radio wave repeater requiring no power source that is provided with a base station side antenna section 4 making communication with a plurality of base stations, a weak electric field side antenna section 5 making communication with a weak electric field side, and a cable 6 interconnecting the base station side antenna section 4 and the weak electric field side antenna section 5, the base station side antenna section 4 is provided with a plurality of antenna elements 41a-41d. The base station side antenna section 4 is provided with circuits 42a-42d to be matched with the impedance of the weak electric field side antenna section 5.
申请公布号 JP2000341189(A) 申请公布日期 2000.12.08
申请号 JP19990145842 申请日期 1999.05.26
申请人 HITACHI ELECTRONICS SERVICE CO LTD 发明人 YAMAGISHI NORIKAZU;OGATA KAZUYUKI;AKINAGA TADAHIKO;TAKESADA MUTSUHARU
分类号 H04B7/26;H04B7/15;(IPC1-7):H04B7/15 主分类号 H04B7/26
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