RFID reader antenna assembly

Details RFID reader antenna assembly RFID reader antenna assembly

2008-06-27

2010-11-09

Wimer, Michael C (Department: 2821)

Communications: radio wave antennas

Antennas

Slot type

C343S7000MS, C343S725000

Reexamination Certificate

active

07830322

ABSTRACT:
An antenna system for a reader configured to interact with RFID tags includes one or more antenna elements electrically coupled to the reader for transmission and reception of RFID signals. In one embodiment the antenna elements include a conductive plate, a first elongate aperture in the plate oriented longitudinally in a first direction, a second elongate aperture in the plate oriented longitudinally in the first direction so as to be generally parallel with the first elongate aperture, a third elongate aperture in the plate oriented longitudinally in a second direction generally perpendicular to the first direction and configured to join the first and second apertures at about the longitudinal middle of the first aperture. Both “h”-shaped and “H”-shaped versions are provided. In another embodiment the antenna element comprises a rectangular slot.

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