| 摘要 |
PROBLEM TO BE SOLVED: To realize non-directional gain characteristics to all directions, in an antenna of a diversity system using a patch antenna. SOLUTION: A transmitting and receiving antenna 120 and a receiving antenna 121 can turn making a hollow rotation axes 122 and 123 as centers. Directivity range of the diversity system antenna is enlarged, by rotating the transmitting and receiving antenna 120 and the receiving antenna 121 to the optimal directions. COPYRIGHT: (C)2004,JPO
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