| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna device to be used for a MIMO type radio communication device, to independently adjust the polarizing condition and the direction of the directional range. <P>SOLUTION: The antenna device X to be used for the MIMO type radio communication device Y comprises a plurality of antenna elements 11-14 having flat-shape directional ranges (A1-A4 in Fig.1) and having different polarizing directions (R1-R4 in Fig.1) set in the longitudinal directions of different directional ranges, and a power feed switch 15 for selectively feeding power from the radio communication device Y to one or more of the plurality of antenna elements 11-14. <P>COPYRIGHT: (C)2009,JPO&INPIT |
