| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an array antenna apparatus which does not require measurement of element impedance for each antenna, and does not require adjustment to be a different bias voltage for each matching circuit. <P>SOLUTION: The array antenna apparatus includes antenna elements 10 arrayed in a plurality of numbers, power feeding circuits 40A and 40B for feeding power to the antenna element 10 arrayed in a plurality of numbers, a plurality of adjusting circuits 20 which are provided between the antenna elements 10 arrayed in a plurality of numbers and the power feeding circuits 40A and 40B respectively, for impedance matching, and a control part 50 for controlling a plurality of matching circuits 20. The control part 50 calculates an element impedance of a central antenna element 10 in a beam scanning range. Based on the calculated element impedance, a matching condition between the antenna element 10 and the power feeding circuits 40A and 40B is determined. And the determined matching condition is applied to the matching circuits 20 of all the antenna elements 10. <P>COPYRIGHT: (C)2012,JPO&INPIT |
