| 摘要 |
PROBLEM TO BE SOLVED: To provide an array antenna system which is less in power consumption and computational complexity than a conventional technique. SOLUTION: In the array antenna system, a controller 7 turns off a switch 3a and also turns off a control signal to be applied to a phase shifter 2a to judge whether or not a reception signal arrives from the reception power level of a radio signal received by an antenna element 1a. When judging that the reception signal arrives, the controller 7 turns on the switch 3a and outputs the control signal to the phase shifter 2a to control the phase shifter 2a to direct a main beam of an array antenna comprising antenna elements 1a and 1b in the direction of the arriving reception signal based upon the radio signal of the array antenna. COPYRIGHT: (C)2008,JPO&INPIT
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