Core antenna for EAS and RFID applications

Details Core antenna for EAS and RFID applications Core antenna for EAS and RFID applications

2008-01-08

2008-01-08

Le, Hoanganh (Department: 2821)

Communications: radio wave antennas

Antennas

Including magnetic material

C343S787000

Reexamination Certificate

active

11051235

ABSTRACT:
A core antenna system for use in electronic article surveillance (EAS) and radio frequency identification (RFID) systems. The core antenna system may include a core antenna. The core antenna may include a core, a first resonant winding disposed around at least a portion of the core, the first resonant winding having a first number of winding turns N1, and a second non-resonant winding disposed around at least a portion of the core, the second non-resonant winding having a second number of winding turns N2, the second number of turns greater than or equal to the first number of turns. The core antenna may be mounted on a shield plate and tuned to an operating frequency on the shield plate such that when the shielded core antenna is further mounted on a mounting surface, e.g., of a checkstand, no significant de-tuning of the antenna takes place.

REFERENCES:
patent: 3721989 (1973-03-01), Christensen
patent: 4193076 (1980-03-01), Ito et al.
patent: 4407000 (1983-09-01), Sasaki et al.
patent: 4805232 (1989-02-01), Ma
patent: 5923300 (1999-07-01), Mejia
patent: 6163305 (2000-12-01), Murakami et al.
patent: 2004/0061660 (2004-04-01), Yoshida et al.
patent: 2004/0135690 (2004-07-01), Copeland et al.
patent: 2004/0252068 (2004-12-01), Hall et al.
patent: 2005/0162331 (2005-07-01), Endo et al.
patent: 1489635 (2004-12-01), None

Affiliated with

Also associated with

Rating

Core antenna for EAS and RFID applications does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Core antenna for EAS and RFID applications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Core antenna for EAS and RFID applications will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3937590