发明名称 |
SPACE DIVISION MULTIPLEXER, AND SPACE DIVISION MULTIPLE CONNECTION DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To increase transmission capacity by space division multiplexing even for an antenna arrangement small in variation of a transmission environment and reduced in transmission capacity and a transmission parameter corresponding to it. SOLUTION: This space division multiplexer includes: a transmitter for transmitting different signals of a plurality of systems from a plurality of transmission antennas to the same space at the same time and with the same frequency; and a receiver for restoring the signals of the plurality of systems from signals received by a plurality of reception antennas. The space division multiplexer is configured such that a substance having specific permittivity different from that of air is arranged, as a phase shifter, in at least one visible transmission route between the plurality of transmission antennas and the plurality of reception antennas. COPYRIGHT: (C)2011,JPO&INPIT |
申请公布号 |
JP2011041083(A) |
申请公布日期 |
2011.02.24 |
申请号 |
JP20090187793 |
申请日期 |
2009.08.13 |
申请人 |
NIPPON TELEGR & TELEPH CORP |
发明人 |
MARUYAMA TAKASHI;OMOTO RYUTARO;MARUTA KAZUTERU;NAKATSUGAWA SEIJI |
分类号 |
H04J99/00;H04B7/04;H04W16/28 |
主分类号 |
H04J99/00 |
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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