H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
351/7
H01Q 1/32 (2006.01) H01Q 5/00 (2006.01) H01Q 19/00 (2006.01)
Patent
CA 1313408
73383-1 Abstract Disclosed is an antenna device for vehicles, comprising a ground plate having a flat surface and an L-shaped radiator plate having one leg of the L arranged parallel to the ground plate with the other leg being positioned perpendicular to the ground plate. The radiator plate is disposed with a narrow gap between the lower end of the vertical leg and the upper surface of the ground plate. A feed coaxial cable is provided for connect- ing the ground plate with an outer conductor and also for connect- ing an inner conductor with substantially the center of the vertical leg end of the radiator plate. A sub-radiator element formed by an L-shaped plate is rigidly mounted on the ground plate at a position in close proximity to the radiator plate, the sub-radiator element having one leg extending parallel to the ground plate with the end thereof being spaced away from the end of the parallel leg of the radiator plate by a given distance, the vertical leg of the L-shaped plate having the end connected with said ground plate to provide an increased resonant band width.
593188
Fujimoto Mitoshi
Nishikawa Kunitoshi
Kabushiki Kaisha Toyota Chuo Kenkyusho
Smart & Biggar
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