| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circular polarization antenna for a vehicle that can perform antenna tuning with excellent work efficiency when performing antenna tuning so that a desired antenna performance is obtained at a vehicle equipped with the circular polarization antenna for a vehicle receiving a circular polarization radio wave in a quasi-microwave band from a satellite. <P>SOLUTION: A circular polarization antenna for a vehicle has a positive pole side element and a negative pole side element arranged on the same plane. The positive pole side element comprises at least a positive pole side feeding point, a positive pole side planar body on which the positive pole side feeding point is placed, and a positive pole side main wire connected to the positive pole side planar body. The negative pole side element comprises at least a negative pole side feeding point, a negative pole side planar body on which the negative pole side feeding point is placed, and a negative pole side main wire connected to the negative pole side planar body. An end of the positive pole side main wire and an end of the negative pole side main wire overlap and are capacitively coupled with each other. <P>COPYRIGHT: (C)2013,JPO&INPIT |
