Title:
APPARATUS FOR AND METHOD OF USING A DIVERSITY ANTENNA
Document Type and Number:
WIPO Patent Application WO2005013496
Kind Code:
A3
Abstract:
In accordance with a preferred embodiment of the invention, an antenna structure is provided having one or more antennae (100) arranged so as to read all possible orientations of a randomly placed tag (111, 112). Also provided in accordance with a preferred embodiment of the invention, is a method of configuring one or more antennae composed of the steps of: identifying the "dead zones" of each discrete antennae used, and orienting each antennae such that there are no "dead zones" common to all antennae. The unique antenna structure (and corresponding method) has particular application in tag reader antenna systems for use in RFID (radio frequency identification) applications (13.56 MHz) and the like. In accordance with an exemplary embodiment, multiple RF (radio frequency) antennae are utilized as part of an intelligent station to track items tagged with radio frequency identification (RFID) tags.
Inventors:
MARINO RONALD A (US)
CAMPERO RICHARD J (US)
CARPENTER WILLIAM JOSEPH (US)
CAMPERO RICHARD J (US)
CARPENTER WILLIAM JOSEPH (US)
Application Number:
PCT/US2004/023704
Publication Date:
June 09, 2005
Filing Date:
July 23, 2004
Export Citation:
Assignee:
MEADWESTVACO CORP (US)
MARINO RONALD A (US)
CAMPERO RICHARD J (US)
CARPENTER WILLIAM JOSEPH (US)
MARINO RONALD A (US)
CAMPERO RICHARD J (US)
CARPENTER WILLIAM JOSEPH (US)
International Classes:
G06K7/08; H01Q1/22; H01Q7/00; H01Q11/12; H01Q21/00; H01Q21/29; H04B7/08; H04B; (IPC1-7): H01Q21/00; H01Q11/12
Foreign References:
| US6069564A | 2000-05-30 | |||
| US6700547B2 | 2004-03-02 | |||
| US6720930B2 | 2004-04-13 |
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