Antenna and portable device using the same

Details Antenna and portable device using the same Antenna and portable device using the same

2005-10-05

2008-10-07

Wimer, Michael C (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S846000

Reexamination Certificate

active

07432865

ABSTRACT:
An antenna with an adjustable grounding element and a related portable device is disclosed. The grounding element of the antenna according to the present invention includes a first section, a second section and a third section, wherein the first section is separately connected to the second section and the third section, such that a shape of the grounding element is substantially hollowed, such as an upside-down U shape. Alternatively, the grounding element further comprises a fourth section having an opening. By adjusting the grounding element or positions or sizes of the opening of the fourth section can obtain different radiation patterns.

REFERENCES:
patent: 4460894 (1984-07-01), Robin et al.
patent: 5521606 (1996-05-01), Iijima et al.
patent: 6087988 (2000-07-01), Pozgay
patent: 6133881 (2000-10-01), Kushihi et al.
patent: 6307524 (2001-10-01), Britain
patent: 6337666 (2002-01-01), Bishop

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