Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2005-11-02
2009-11-03
Owens, Douglas W (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C340S572700
Reexamination Certificate
active
07612719
ABSTRACT:
A near field linear element microstrip antenna is disclosed which is configured to read an RFID label such that a localized electric E field emitted by the antenna at an operating wavelength resides substantially within a zone defined by the near field. The localized E field directs a current distribution along an effective length of the antenna corresponding to a half-wave to a full-wave structure.
REFERENCES:
patent: 6369762 (2002-04-01), Yanagisawa et al.
patent: 7398054 (2008-07-01), Tsirline et al.
patent: 2004/0027290 (2004-02-01), Arvidsson
patent: 2007/0285335 (2007-12-01), Bungo et al.
Copeland Richard L.
Shafer Gary Mark
Christopher & Weisberg P.A.
Duong Dieu Hien T
Owens Douglas W
Sensormatic Electronics Corporation
Weisberg Alan M.
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