Antenna device for transmitting and receiving RF signals

Details Antenna device for transmitting and receiving RF signals Antenna device for transmitting and receiving RF signals

1999-07-20

2000-12-19

Ho, Tan

Communications: radio wave antennas

Antennas

With radio cabinet

343895, 343901, H01Q 124

Patent

active

061633011

ABSTRACT:
An antenna device for portable communication equipment and including an extendable elongated antenna element which at its lower part includes first and second contact surfaces and which is slidable inside a casing between an extended position and a retracted position. The first and second contact surfaces are arranged for engagement with an inner surface of the casing, and a third contact surface is arranged for engagement with the elongated antenna element. The contact surfaces are arranged so as to create a spring force in the elongated antenna element so as to achieve mechanical locking in the extended position.

REFERENCES:
patent: 5605163 (1997-02-01), Hani
patent: 5717409 (1998-02-01), Garner et al.
patent: 6008765 (1999-12-01), Davidson et al.
patent: 6031496 (2000-02-01), Kuittinen et al.
patent: 6041106 (2000-01-01), Annamaa

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