| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna for radar device capable of obtaining a high gain, by feeding the power to the antenna element, using a first feeder line which has been formed appropriately. SOLUTION: The length of the pass-through of one part 105A of a first feeder line 105 and a second feeder line 106 through a radiation section board 101, namely, the thickness of the radiation section board 101, is set at substantially 1/4 of the conduit wavelengthλg, and with this structure, superior radiation pattern can be obtained. Space saving is realized enabling facilitating turning into an array, by disposing the first feeder line 105 in the vertical direction of the radiation section board 101. COPYRIGHT: (C)2009,JPO&INPIT
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