| 摘要 |
<p>PROBLEM TO BE SOLVED: To allow the method to correct an error due to a temperature fluctuation and a secular change and to shape a radio wave beam with high accuracy. SOLUTION: The phased array radar is provided with plural antenna elements that send or receive a radio wave and placed at a prescribed interval, a controller 10 that provides an output of a phase shift of each antenna element 50 in response to a scanning angle of a radio wave beam as a control signal, plural transmission/reception modules 12 that is provided for each antenna element 50 and shifts a phase of a transmission signal or a reception signal of each antenna element 50 based on a control signal, and a transmitter-receiver 56 that output or inputs the transmission signal or the reception signal of each antenna element 50 via each transmission/reception module 12, and shifts the phase of the transmission signal so that a phase difference of the transmission signals before and after the phase shift is coincident with the phase shift.</p> |
