Non-protruding dual-band antenna for communications device

Details Non-protruding dual-band antenna for communications device Non-protruding dual-band antenna for communications device

1998-05-29

2000-01-18

Le, Hoanganh

Communications: radio wave antennas

Antennas

With radio cabinet

343729, 455 90, H01Q 124

Patent

active

060161264

ABSTRACT:
Dual-band antennas include first and second radiating elements configured to be enclosed within a radiotelephone between a keypad and a top housing and to occupy available space existing around the perimeter of the keypad and/or between the keys of a keypad. First and second coplanar radiating elements are maintained in adjacent spaced-apart relationship with a circuit board underlying the keypad. The underlying circuit board serves as a ground plane for directing radiation from the antenna outwardly in a direction normal to the circuit board.

REFERENCES:
patent: 4613868 (1986-09-01), Weiss
patent: 5561437 (1996-10-01), Phillips et al.
patent: 5576718 (1996-11-01), Buralli et al.
patent: 5710987 (1998-01-01), Paulick

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