| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna apparatus in which a structure is simple, and a HPBW (Half Power Beam Width) is wide. SOLUTION: The antenna apparatus 1 of a rear spoiler built-in type is provided with: a dipole antenna 3 formed by a front surface side conductive layer of a printed circuit board 2; and a matching circuit 12 formed by a rear surface side conductive layer of the printed circuit board 2. The dipole antenna 3 includes: dipole elements 4, 5 arranged in a trapezoid shape; and auxiliary elements 6, 7 connected to back sides of top units of the respective dipole elements 4, 5. The antenna apparatus 1 is thereby provided in which the structure is simple and the HPBW is wide. COPYRIGHT: (C)2009,JPO&INPIT
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