| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device which copes with a multi-band in which a plurality of systems are integrated, and which attains high antenna performance in each system, using a simple configuration. SOLUTION: Yagi antennas 102 and 103 are formed of a copper foil pattern on the +Z-surface side of a printed circuit board 101 at a mutual gap of 1/2 the wavelength. A patch antenna 104 is formed of the copper foil pattern on the +Z-surface side of the printed circuit board 101 between the Yagi antennas 102 and 103, and forms directivity perpendicular to directivity to be formed by the Yagi antennas 102 and 103. A ground plate 105 is formed of the copper foil pattern on the -Z-surface side of the printed circuit board 101 so as to overlap with the location of the patch antenna 104. A feeding terminal 106 is electrically connected to a radio circuit via a high-frequency coaxial cable. COPYRIGHT: (C)2011,JPO&INPIT
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