ON-VEHICLE CIRCULAR POLARIZATION ANTENNA

摘要

PROBLEM TO BE SOLVED: To provide an on-vehicle circular polarization antenna easy to be mounted in a vehicle room.SOLUTION: The on-vehicle circular polarization antenna includes an interior panel 10 as an on-vehicle material, an antenna element 12, and a feeding line 22A and a feeding line 22B connected to the antenna element 12. The antenna element 12 and each feeding line are printed on the interior panel 10 with a conductive paint. A linear conductor 14 has a square shape whose one corner is notched. Feeding ends 20A, 20B are formed on the notched end of the linear conductor 14. One end of a first open stub conductor 24A is connected to a first x-direction conductor 16A at a position apart from the left end thereof as long as a stub disposition distance S1. Also, one end of a second open stub conductor 24B is connected to a second x-direction conductor 16B at a position apart from the right end thereof as long as a stub disposition distance S2.