发明名称 Testing transmitter-receiver apparatus for sector cell base station
摘要 In sector cell base stations, directive antennae with box-shaped reflectors are widely used. By way of a testing antenna incorporated such a reflector box, stable and appropriate electromagnetic coupling to the antenna elements of the directive antenna can be realized and undesirable coupling from outside the reflector box can be prevented, thereby improving the reliability of the testing system.
申请公布号 US5423072(A) 申请公布日期 1995.06.06
申请号 US19930089374 申请日期 1993.07.12
申请人 NEC CORPORATION 发明人 IWASHITA, MASAKAZU;KOJIMA, OSAMU
分类号 H04B7/26;G01R29/10;H01Q1/42;H01Q19/10;H04B17/00;(IPC1-7):H01Q1/42 主分类号 H04B7/26
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