| 摘要 |
PROBLEM TO BE SOLVED: To provide a polarization diversity omnidirectional antenna which is excellent in anti-vibration property and can be easily adjusted in omnidirectivity. SOLUTION: Antennas each having a polarization diversity function and directivitity are formed on a planar substrate, and the antennas 1a, 1b and 1c forming three faces are erected and arranged so as to face three directions. Power is fed to the respective antennas 1a, 1b and 1c from a distributer with one input and three outputs, thereby making combined directivity be horizontal and omnidirectional.
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