Vehicular radio wave receiver and information displaying...

Details Vehicular radio wave receiver and information displaying... Vehicular radio wave receiver and information displaying...

2005-11-15

2005-11-15

Wong, Don (Department: 2821)

Communications: radio wave antennas

Antennas

With vehicle

C307S010500

Reexamination Certificate

active

06965347

ABSTRACT:
A receiver includes a circuit board and a dielectric antenna. The circuit board has a receiving circuit on a first surface, and a ground pattern on a second surface. The circuit board is disposed close to a rear window of a vehicle so that the ground pattern faces a roof panel. The dielectric antenna extends from an edge of the circuit board toward and along the rear window. As a result, the roof panel capacitively couples with the ground pattern, so that the roof panel becomes imaginary ground. The dielectric antenna functions as a monopole antenna with the imaginary ground. It is not influenced with a metallic material of the vehicle.

REFERENCES:
patent: 5959581 (1999-09-01), Fusinski
patent: 5971552 (1999-10-01), O'Farrell et al.
patent: 5973648 (1999-10-01), Lindenmeier et al.
patent: 6011518 (2000-01-01), Yamagishi et al.
patent: 6052084 (2000-04-01), Aoshima et al.
patent: 6431712 (2002-08-01), Turnbull
patent: 6538609 (2003-03-01), Nguyen et al.
patent: 6750823 (2004-06-01), Turnbull et al.
patent: A-H08-216735 (1996-08-01), None

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