| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna system capable of securing a more excellent reception quality even if a relative spatial relationship with a transmission apparatus is changed. <P>SOLUTION: A plurality of antenna units 11a1 and 11a2 are connected by a cable Ca1 in series, and the antenna unit 11a1 at one end comprises: an antenna 101; and transmission circuits T11, 102, 103, 104, 109, and T13 which sends out a reception signal on the basis of a radio signal received by the antenna 101 to the connected cable Ca1. Each antenna unit 11a2 excluding the antenna unit 11a1 at one end comprises: the antenna 101; a signal composition circuit 109 which generates a composite signal by superposing a signal input via one cable Ca1 and a reception signal on the basis of a radio signal received by the antenna 101; and the transmission circuit T13 which sends out said composite signal acquired in the signal composition circuit 109 to a connected cable Ca2 of another side. <P>COPYRIGHT: (C)2012,JPO&INPIT |
