| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna shared for a polarized waves that can make transmission reception at different frequencies by independently operating polarized wave diversity antennas with different resonance frequencies each having a narrow frequency band that are placed on a same plane at each of the different frequency bands. SOLUTION: In this antenna, a 1st antenna 1 that can independently excite a polarized wave plane A and a polarized wave plane B orthogonal to the polarized wave plane A, a 2nd antenna 3 that can independently excite the polarized wave plane A and the polarized wave plane B are placed adjacent to each other. Feeders 2, 4 to feed power to the respective antennas 1, 3 are connected to a common coupling point 6 and 1st feeders 2, 4 to excite the polarized wave plane A and a 2nd feeder 5 to excite the polarized wave plane B are provided independently to each other.
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