| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna device having circular polarization characteristics. <P>SOLUTION: The antenna device includes a grounding plate, a feeding part insulated and formed on the grounding plate, two radiation conductor parts connected to a short circuit part connected to the feeding part and the grounding plate and drawn in parallel with the grounding plate and a prescribed interval away from the grounding plate, and a feeder circuit for feeding power to the radiation conductor parts. The two radiation conductor parts are disposed on the grounding plate in point symmetry respectively with the center point of the grounding plate as a symmetry point, the feeder circuit feeds the power in opposite phases respectively to the two radiation conductor parts, and the two radiation conductor parts include bend parts in the same shape. <P>COPYRIGHT: (C)2012,JPO&INPIT |
