| 摘要 |
PROBLEM TO BE SOLVED: To suppress coupling among a plurality of antennas even when the distance among the antennas mounted on a board is comparatively short. SOLUTION: Two chip antennas 106, 107 in an antenna system 100 are mounted on inside of mount regions 108, 109 not overlapped on a ground conductive part 104 on an upper side of a printed circuit board 102. The ground conductive part 104 includes: a first ground conductive part 104a; a second ground conductive part 104b passing between the two chip antennas 106, 107 from the first ground conductive part 104a and extended in a direction of an end 102a by a prescribed length as the ground conductive part formed on the printed circuit board 102 itself; and a third ground conductive part 104c connected to the second ground conductive part 104b and interposed between the two chip antennas 106, 107 in a state of being overlapped with the second ground conductive part 104b while keeping a gap with a dielectric board, as the ground conductive part formed at the outside of the printed circuit board 102. COPYRIGHT: (C)2006,JPO&NCIPI
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