| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio wave direction detector and an antenna movable device capable of improving reception efficiency by setting an antenna direction to the optimum direction by detecting a radio wave incoming direction. SOLUTION: This radio wave direction detector is equipped with a radio wave direction detection part having a shape tilted from the topmost part toward each end, wherein a plurality of radio wave direction detection pipelines forming holes for detecting an incoming direction of a desired radio wave are allowed to penetrate at each different angle from the tilted surface to the bottom surface direction, and a radio wave absorption medium is applied on each inner wall surface of the radio wave direction detection pipelines; a conversion part equipped with a plurality of electromagnetic wave-electricity converters provided on the bottom surface lower part of the radio wave direction detection part corresponding to each radio wave direction detection pipeline, for converting a desired radio wave passing the radio wave direction detection pipelines into an electric signal; and an operation part for comparing each electric signal level corresponding to each radio wave direction detection pipeline transmitted from the conversion part, and determining an angle direction of a radio wave direction detection pipeline agreeing with a condition set beforehand as the radio wave incoming direction. COPYRIGHT: (C)2010,JPO&INPIT
|
