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US 6,650,292 B2Granted
Adaptive array antenna
AssigneeKabushiki Kaisha Toshiba
InventorShuichi Obayashi
Life of this patent
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Abstract
An adaptive array antenna comprising array antenna elements, first and second phase control circuits for transmission data packet, a distributor distributing the transmission data packet to one of the first and second phase control circuits based on the destination, and phase shift amount control circuit controlling the phase shift amount of the first and second phase control circuits based on the destination.
Claims2
A transmission method of an adaptive array antenna comprising:
- receiving a data packet and destination user information of the data packet;
- determining whether or not the destination user information of the data packet is identical to the destination user information of a preceding data packet;
- distributing the data packet and the destination user information to a path which is different from a path to which the preceding data packet and the destination user information are distributed;
- setting a phase control amount to a phase control circuit based on the destination user information;
- activating the phase control circuit;
- generating a transmission burst intermediate frequency signal based on the distributed data packet and supplying the generated transmission burst intermediate frequency signal to the phase control circuit;
- and
- converting the transmission burst intermediate frequency signal output from the phase control circuit to a radio signal to be transmitted from the adaptive array antenna.
5 more elements
Dependencies are inferred from the claim text.