Air coil RF transponder and method of making same

Details Air coil RF transponder and method of making same Air coil RF transponder and method of making same

2007-12-11

2007-12-11

Lee, Benjamin C. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572100, C340S572500, C340S572600, C340S572800, C343S866000, C343S867000, C343S868000, C343S869000, C343S714000, C361S814000, C361S815000

Reexamination Certificate

active

10899869

ABSTRACT:
An RF air coil transponder includes a rotatable carrier, such as a rigid reel. A coil is wound about the reel and at least one field influencing body for influencing the electric and/or the magnetic field within the coil is supported by the reel. The rigidity of the reel enables the coil to keep its form and guarantees precise distances between windings, especially when a winding machine forms the coil. Adjusting the angular position, shape, composition, size, and/or surface are of the body effects adjustment of the resonant frequency.

REFERENCES:
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patent: 6778089 (2004-08-01), Yoakum
patent: 7019711 (2006-03-01), Johnson et al.
patent: 7135978 (2006-11-01), Gisselberg et al.
patent: 2005/0172150 (2005-08-01), Schmitt

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