发明名称 |
Method and device for coupling cancellation of closely spaced antennas |
摘要 |
An antenna system comprising at least two antenna radiating elements and respective reference ports the ports being defined by a symmetrical antenna scattering N×N matrix. The system further comprises a compensating network connected to the reference ports. The compensating network is arranged for counteracting coupling between the antenna radiating elements. The compensating network is defined by a symmetrical compensating scattering 2N×2N matrix comprising four N×N blocks, the two blocks on the main diagonal containing all zeros and the other two blocks of the other diagonal containing a unitary N×N matrix and its transpose. The product between the unitary matrix, the scattering N×N matrix and the transpose of the unitary matrix equals an N×N matrix which essentially is a diagonal matrix. The present invention also relates to a method for calculating a compensating scattering 2N×2N matrix for a compensating network for an antenna system. |
申请公布号 |
US8253645(B2) |
申请公布日期 |
2012.08.28 |
申请号 |
US20060298475 |
申请日期 |
2006.04.28 |
申请人 |
DERNERYD ANDERS;STJERNMAN ANDERS;TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
DERNERYD ANDERS;STJERNMAN ANDERS |
分类号 |
H01Q1/52 |
主分类号 |
H01Q1/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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