GLASS ANTENNA FOR VEHICLE

摘要

[Problem] The purpose of the present invention is to provide a circular polarised antenna for a vehicle which can be efficiently tuned so that the desired antenna performance is obtained in the vehicle to which the circular polarised antenna has been attached in order to receive circularly polarised waves in a quasi-microwave band from a satellite. [Solution] In the circular polarised antenna, the positive electrode elements and the negative electrode elements are arranged on the same plane. The positive electrode elements include at least a positive electrode feeding point, a positive electrode plate on which the positive electrode feeding point has been placed, and a positive electrode main line connected to the positive electrode plate. The negative electrode elements include at least a negative electrode feeding point, a negative electrode plate on which the negative electrode feeding point has been placed, and a negative electrode main line connected to the negative electrode plate. The tip of the positive electrode main line and the tip of the negative electrode main line overlap, and are capacitively coupled to each other.