Antenna unit for a car navigation device

Details Antenna unit for a car navigation device Antenna unit for a car navigation device

1995-05-25

1996-12-17

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

With vehicle

343878, 248683, 2482065, H01Q 132

Patent

active

055858090

ABSTRACT:
An antenna unit for a car navigation device includes a unit casing accommodating a circuit board and an antenna body and having a bottom cover in which a bottom recess is formed. A permanent magnet ring magnetically held on a back yoke is fixedly set in the bottom recess, the permanent magnet ring being used to magnetically hold the bottom cover on the surface of an object so that the antenna unit is detachably mounted on the object. In the antenna unit, an adhesive seal is bonded to the of the permanent magnet ring which surface confronts the surface of the object.

REFERENCES:
patent: 3245165 (1966-04-01), Podoloff
patent: 3910540 (1975-10-01), Kayler

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