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发明名称
PLURAL LEVEL BEAM-FORMING NETWORK
摘要
申请公布号
EP0307445(B1)
申请公布日期
1993.08.18
申请号
EP19880903012
申请日期
1988.02.26
申请人
HUGHES AIRCRAFT COMPANY
发明人
THOMPSON, JAMES, D.
分类号
H03F3/60;H01Q3/40;H01Q21/22;H01Q25/00
主分类号
H03F3/60
代理机构
代理人
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