Dual-band loop antenna

Details Dual-band loop antenna Dual-band loop antenna

2008-08-06

2009-12-29

Wimer, Michael C (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S728000, C343S741000

Reexamination Certificate

active

07639194

ABSTRACT:
A dual-band loop antenna for using in a mobile phone for (890˜960 MHz)/DCS(1710˜1880 MHz) application is disclosed to include a ground plane in a substantially rectangular shape having a grounding point and a shorting point, a radiating metallic loop having a feeding end and a shorting end electrically connected to the shorting point of the ground plane and spaced from the feeding end at a predetermined distance, and a radiating metallic plate surrounded by the radiating metallic loop and having one end electrically connected to a vicinity around the shorting end of the radiating metallic loop and spaced from the shorting end of the radiating metallic loop at a distance less than 10 mm.

REFERENCES:
patent: 7215283 (2007-05-01), Boyle
patent: 2005/0264455 (2005-12-01), Talvitie et al.

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