| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve problems that since a distance between adjacent antennas is narrowed, physical space disappears and the installation of a radio wave absorber between the adjacent antennas is made impossible, isolation is not secured, distortion may be generated in an antenna pattern and necessary gain and phase characteristics corresponding to an azimuth angle are not secured. Ž<P>SOLUTION: A planar antenna includes a plurality of antennas arranged on an antenna substrate and a shield plate arranged in a space between adjacent antennas, wherein the shield plate is arranged separately from the antenna substrate. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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