| 摘要 |
PROBLEM TO BE SOLVED: To reduce the occupancy area of an antenna, and to obtain highly sensitive and stable receiving performance by preventing two system antennas arranged side by side from affecting each other even when two system non-ground type antennas are adjacently arranged side by side in the narrow space of the window glass board of an automobile. SOLUTION: This glass antenna for a vehicle is configured by arranging two system non-ground type antennas whose conductive filaments are extended from the respective power feeding points of a positive pole and a negative pole on the same glass surface for diversity-receiving those two system antennas. In this case, the power feeding point of one negative pole is arranged on a glass plate surface and the power feeding points of two positive poles are arranged in the neighboring positions of the both sides, and an outer cover conductor antenna is extended from the power feeding point of the negative pole, and a central conductor antenna is arranged from each of the two positive pole power feeding points, and the internal conductors of the two coaxial cables are respectively connected to the power feeding points of the two positive poles, and the two external conductors are connected to the power feeding point of the negative pole, and the power feeding point of the negative pole is used as the common power feeding point of the two system antennas, and the antenna extended from the power feeding point is used as a shared antenna. COPYRIGHT: (C)2006,JPO&NCIPI
|
