| 摘要 |
PROBLEM TO BE SOLVED: To reduce the interconnection between a plurality of antennas and the radio wave leakage from a transmitting side antenna to a receiving side antenna in an antenna device with the respective antennas arranged on the same ground conductor plate. SOLUTION: In this antenna device wherein a first antenna 13 consisting of an antenna element 14 connected to a first feeding point 11 and a plate-like short-circuit element 15 and a second antenna 16 connected to a second feeding point 12 are installed on the ground conductor plate 10, the plate-like shunt element 15 is installed between the first feeding point 11 and the second feeding point 12 and almost perpendicularly to the ground conductor plate 10, and the second antenna 16 is configured in a profile smaller than the plate-like shunt element 15. COPYRIGHT: (C)2004,JPO
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