| 摘要 |
<p>PURPOSE:To improve angle-measuring accuracy by setting the number of column arrays which are excited when the outputs of a power distribution device are given to a switch device in the process of beam scan to be the same as the distributing number of the power distribution device or reducing one so as to make the curve of a beam small. CONSTITUTION:The column arrays 11-124 are arranged in a cylinder form and they scan the beam based on inputted power. Then, a controller 5 controls beam scan. The power distribution device 3 includes first phase shifters 251-258 which respectively phase-adjust power which a transmission/reception part 4 outputs and the output alpha phase adjustment of a distributor 26 based on the control of the distributor 26 and the controller 5. A first setting device sets the number of the column arrays 11-124 excited when the output of the power distribution device 3 is given to the switch device 2 in the process of beam scan based on the control of the controller 5 to be the same as the distributing number of the power distribution device 3 or less than one. Thus, the curve of the beam can be reduced.</p> |
