| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To scan a beam by operating only at least one impedance, without having to operate all the sensor impedances at the same time, and to scan quickly the beam (control a directivity), in a device for deducing the signal arrival direction. <P>SOLUTION: This device is provided with a sensor array 1, having a plurality of sensors A<SB>R1</SB>, A<SB>R2</SB>, etc, and having the impedances of the individual sensors A<SB>R1</SB>, A<SB>R2</SB>, etc, set at respective prescribed values, and a variable impedance regulation means 21 having a variable impedance, and selectively connected to any one of the sensors in the sensor array 1 to control a current distribution of the respective sensors A<SB>R1</SB>, A<SB>R2</SB>, etc,. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
