H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
351/7
H01Q 1/27 (2006.01) H01Q 1/32 (2006.01) H01Q 1/48 (2006.01) H01Q 7/04 (2006.01)
Patent
CA 1239470
ABSTRACT OF THE DISCLOSURE: The present invention provides an automobile antenna system for detecting surface currents induced on the vehicle body by radio waves, the antenna system including an electrostatic shielding case mounted on the vehicle body and having an opening formed therein faced to a metallic plate in the vehicle body and a loop antenna housed within the electrostatic shielding case and disposed in close proximity to the opening thereof, the loop antenna having a plane of loop positioned relative to the surface of the metallic vehicle plate with an angle in the range of 90 degrees to 135 degrees or 225 degrees to 270 degrees, whereby the antenna system can more efficiently detect the surface currents induced on the vehicle body by radio waves and can be miniaturized and improved in performance without any externally protruding member as in the prior art.
494507
Kondo Hiroshi
Ohe Junzo
Gowling Lafleur Henderson Llp
Toyota Jidosha Kabushiki Kaisha
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