| 摘要 |
<p>PURPOSE:To transmit a multibeam selectively only in a target direction by dividing a sent pulse into plural subpulses and distributing them to respective phase shifters. CONSTITUTION:Phase shifters 2011 are arranged in correspondence to respective elements 301-30n of an array antenna 300. The sent pulse is inputted to and divided by a sent pulse dividing and distributing circuit 101 and distributed to the respective phase shifters 2011. The phase shifting quantities of the respective phase shifters 2011 are set and controlled individually with a signal from a sent beam control circuit 102, and consequently the multibeam is sent selectively only in the target direction.</p> |
