| US 7,616,076 B2 | ||
| Radio frequency coupling structure for coupling a passive element to an electronic device and a system incorporating the same | ||
| Mehrdad Mehdizadeh, Avondale, Pa. (US) | ||
| Assigned to E.I. du Pont de Nemours and Company, Wilmington, Del. (US) | ||
| Appl. No. 11/661,900 PCT Filed Aug. 31, 2005, PCT No. PCT/US2005/031129 § 371(c)(1), (2), (4) Date Mar. 01, 2007, PCT Pub. No. WO2006/047007, PCT Pub. Date May 04, 2006. |
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| Claims priority of provisional application 60/607183, filed on Sep. 02, 2004. | ||
| Prior Publication US 2008/0094305 A1, Apr. 24, 2008 | ||
| Int. Cl. H01P 5/02 (2006.01); H01Q 1/24 (2006.01) | ||
| U.S. Cl. 333—24R [333/260; 343/700 MS] | 16 Claims |
| 1. A coupling structure for coupling a device operable at an operating radio frequency with a body formed of a polymeric material
loaded with a conductive filler, the body having an impedance at the operating radio frequency, the body having a surface,
a portion of the surface defining a coupling area of a predetermined shape, wherein the coupling structure comprises:
a conductive pad having a shape and area corresponding to the predetermined shape and coupling area of the body, the conductive
pad being positioned on the surface of the body in non-penetrating contact therewith,
a resilient biasing member urging the conductive Dad against the coupling area,
whereby the pad is electrically coupled to the body through an impedance that is substantially capacitive reactive in nature,
thereby to facilitate the transfer of electromagnetic energy at the operating radio frequency between the body and the pad.
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