| 摘要 |
PROBLEM TO BE SOLVED: To suppress inter-antenna coupling without enlarging a board to which a plurality of antennas are mounted. SOLUTION: Two chip antennas 106, 107 are mounted on mounting regions 108, 109, which are not superimposed on a grounding conductive part 104 on the upper surface of a printed board 102, in an antenna device 100. The grounding conductive part 104 comprises a second grounding conductive part 104b, which is extended by prescribed length from a first grounding conductive part 104a in the direction of an end part 102a; a third grounding conductive part 104c, which extends from the second grounding conductive part 104b in the direction of a side where the chip antennas 106, 107 are positioned (the direction of the end part 102b, and the direction of the end part 102d); and a fourth grounding conductive part 104d. These two chip antennas 106, 107 are mounted so as to face each other across an area K2, while holding prescribed spaces with respective areas K1-K4 which are formed, when the respective grounding conductive parts 104a-104d are projected on the upper surface of the printed board 102. COPYRIGHT: (C)2006,JPO&NCIPI
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