Quadband antenna for portable devices

Details Quadband antenna for portable devices Quadband antenna for portable devices

2007-06-12

2007-06-12

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S702000

Reexamination Certificate

active

10967407

ABSTRACT:
A compact sized integrated quadband antenna for portable devices used in wireless applications is provided to provide wireless wide area network quadband coverage for world wide applications. The antenna design includes a combination of F-shaped and variations of L-shaped metal pieces. The F-shaped and variations of L-shaped metal pieces are provided on a double-sided printed circuit board. The F-shaped metal piece covers 800 MHz and 900 MHz bands. Two variations of L-shaped metal pieces are provided, whereby the two variations produce two resonants in the 1800 MHz and 1900 MHz bands. The two variations of L-shaped metal pieces are provided inside the F-shaped metal piece. The laptop display frame or the metal display supporters are used as part of the antenna, the display frame or the metal display supporters providing the ground plane to the antenna design.

REFERENCES:
patent: 2002/0175861 (2002-11-01), Lin
patent: 2004/0056805 (2004-03-01), Chen
patent: 2004/0246179 (2004-12-01), Chen et al.
patent: 2005/0062651 (2005-03-01), Dai et al.

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