Antenna arrangement

Details Antenna arrangement Antenna arrangement

2007-09-11

2007-09-11

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Loop type

C343S742000, C340S572700

Reexamination Certificate

active

11378001

ABSTRACT:
An antenna arrangement including a first antenna module having a first antenna loop positioned in a plane for emitting a signal in a first spatial area, and at least one additional antenna loop positioned in substantially the same plane for emitting a signal in an additional spatial area. The arrangement includes at least one power source in communication with the first antenna module for providing current thereto. The first spatial area and the additional spatial area at least partially overlap, and the first antenna loop and the additional antenna loop are powered by the power source in a specified pattern. A method of identifying at least one item is also disclosed.

REFERENCES:
patent: 5266922 (1993-11-01), Smith et al.
patent: 6166706 (2000-12-01), Gallagher et al.
patent: 6263319 (2001-07-01), Leatherman
patent: 6445297 (2002-09-01), Nicholson
patent: 6696954 (2004-02-01), Chung
patent: 6738025 (2004-05-01), Carrender
patent: 6943688 (2005-09-01), Chung et al.
patent: 6989796 (2006-01-01), Rahim
patent: WO 03/090310 (2003-10-01), None

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