发明名称 Method and arrangment for improving null depths
摘要 To improve null depths in an antenna pattern of a first polarization, formed with nulls in at least one angular region, a further antenna pattern of a second polarization, substantially orthogonal to the first polarization, is concurrently formed. In the angular region, the amplitudes of the copolar components of the further antenna pattern are substantially equal to the amplitudes of the crosspolar components of the antenna pattern of the first polarization, and the phases of the copolar components of the further antenna pattern of the second polarization are substantially opposite to the phases of the crosspolar component of the first polarization.
申请公布号 SE9803317(D0) 申请公布日期 1998.09.30
申请号 SE19980003317 申请日期 1998.09.30
申请人 TELEFONAKTIEBOLAGET L M ERICSSON 发明人 SVEN OSCAR *PETERSSON;BJOERN *JOHANNISSON;SOEREN *ANDERSSON
分类号 H01Q21/24;H01Q3/26;H01Q21/29;(IPC1-7):H01Q/ 主分类号 H01Q21/24
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