| 摘要 |
PROBLEM TO BE SOLVED: To suppress high frequency current of used frequency band which flows to an outer conductor of a coaxial cable. SOLUTION: An antenna assembly 40 is provided with a ground board 51, a power supply element 41 arranged on the ground board, a parasitic element 42 which is arranged on the ground board in parallel to the power supply element, and the coaxial cable 63 which is arranged on the ground board and has an inner conductor which is connected at a supply point to the power supply element. The antenna assembly has a first ground portion 81 which grounds the outer conductor of the coaxial cable 63 to the ground board 51 at the supply point, and a second ground portion 82 which grounds the outer conductor of the coaxial cable 63 to the ground board 51 at a part which is substantially distanced by (λ/4) (λis wavelength of usd frequency band) from the first ground portion. COPYRIGHT: (C)2007,JPO&INPIT
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