Antenna for a backscatter-based RFID transponder

Details Antenna for a backscatter-based RFID transponder Antenna for a backscatter-based RFID transponder

2007-12-10

2009-12-15

Le, HoangAnh T (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

C343S7000MS

Reexamination Certificate

active

07633460

ABSTRACT:
An antenna for a backscatter-based RFID transponder is provided with an integrated receiving circuit, having a capacitive input impedance, for receiving a radio signal lying spectrally in an operating frequency range, whereby the antenna has two antenna arms, which extend outward in a spiral from a central region in which the antenna arms can be connected to the integrated receiving circuit. According to the invention, a ring-shaped trace is provided, which extends completely around the central region and is formed to connect the antenna arms conductively to one another. The invention relates further to a backscatter-based RFID transponder with an antenna of this type.

REFERENCES:
patent: 6445354 (2002-09-01), Kunysz
patent: 7250916 (2007-07-01), Kunysz et al.
patent: 2004/0056823 (2004-03-01), Zuk et al.
patent: 2007/0057861 (2007-03-01), Forster et al.
patent: 10393263 (2005-09-01), None
patent: 102006003717 (2007-08-01), None
patent: 2 756 976 (1998-06-01), None
patent: WO 2004027681 (2004-04-01), None

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