| 摘要 |
<P>PROBLEM TO BE SOLVED: To receive a millimeter wave signal reliably by each millimeter wave receiver while reducing the installation space of the millimeter wave receiver. <P>SOLUTION: In two millimeter wave receiver groups 8, 10, millimeter wave receivers 8-7F through 8-12F and 10-1F through 10-6F are disposed, respectively, at the tips of straight lines extending from a plurality of positions, spaced apart from each other in the vertical direction, in the opening direction perpendicular to the vertical direction. When viewed from a lateral direction perpendicular to the vertical direction and the opening direction, the two millimeter wave receiver groups 8, 10 are located along the vertical direction without overlapping. One millimeter wave transmitter 12 transmits the millimeter waves to the millimeter wave receivers 8-7F through 8-12F and 10-1F through 10-6F in the two millimeter wave receiver groups 8, 10. <P>COPYRIGHT: (C)2013,JPO&INPIT |
