| 摘要 |
PROBLEM TO BE SOLVED: To provide a planar antenna formed by providing a ground conductor board and a radiation conductor board on a dielectric board, which widens a frequency band of a transmittable/receptible radio wave with a higher degree of design in comparison with conventional planar antennas of the same kind. SOLUTION: The planar antenna A is formed by providing the ground conductor board 12 and the radiation conductor board 13 on the dielectric board 10, the dielectric board 10 is a layered board resulting from stacking first and second dielectric boards 11, 21, The ground conductor board 12 is provided to one side of the first dielectric board 11, the radiation conductor board 13 is provided to the other side opposite to the one side, the second dielectric board 21 is layered on the other side of the dielectric board 11, and the first and second dielectric boards 11, 21 are respectively configured by arranging a plurality of dielectric bodies (a1, a2, b), (c1, c2, d), and the plurality of dielectric body groups comprise at least two kinds of dielectric bodies whose specific dielectric constants differ from each other. COPYRIGHT: (C)2007,JPO&INPIT
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