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公开(公告)号:US20190028165A1
公开(公告)日:2019-01-24
申请号:US16070123
申请日:2016-06-14
Inventor: Naoki ADACHI , Tomohiro KIMURA , Takayuki SOTOYAMA , Kazuaki TAKAHASHI , Naganori SHIRAKATA , Koji TAKINAMI , Takenori SAKAMOTO
Abstract: A transmission device transmits multiplexed signals obtained by multiplexing signals of N systems corresponding to N Orbital Angular Momentum (OAM) propagation modes. The transmission device includes: an array antenna that includes M antenna elements disposed in a lattice on a plane when viewed from the plane; and a transmitter that multiplies signals obtained by branching each of the signals of N systems into M signals by weighting coefficients of phase shift angles based on angles of the respective M antenna elements with respect to a reference axis passing through a reference point viewed from the reference point on the plane according to the OAM propagation modes, multiplexes the signals of N systems multiplied by the weighting coefficients of the phase shift angles, and transmits signals obtained by the multiplexing from the M antenna elements. M and N are integers equal to or larger than 2.
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公开(公告)号:US20190020434A1
公开(公告)日:2019-01-17
申请号:US16069850
申请日:2016-06-13
Inventor: Naoki ADACHI , Tomohiro KIMURA , Takayuki SOTOYAMA , Kazuaki TAKAHASHI , Naganori SHIRAKATA , Koji TAKINAMI , Takenori SAKAMOTO
IPC: H04J11/00
CPC classification number: H04J11/00 , H04J2011/0003 , H04L5/04 , H04L27/06
Abstract: A transmission device includes: a modulator that selects an Orbital Angular Momentum (OAM) propagation mode among N (N is an integer equal to or greater than 2) OAM propagation modes in accordance with a value of bit data to be transmitted; and a transmitter that transmits a signal of the OAM propagation mode selected by the modulator.
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