The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2005
Filed:
Sep. 09, 2003
Eric A. Anderson, Crystal Lake, IL (US);
Benjamin O. White, Crystal Lake, IL (US);
Eric A. Anderson, Crystal Lake, IL (US);
Benjamin O. White, Crystal Lake, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An apparatus and a method for reducing magnetic field in near-field by presenting high impedance at an operating frequency band are disclosed. A conducting element (), which is suspended substantially parallel to a first side () of a printed circuit board () of a wireless portable communication device () over an electrically grounded conductor (), forms a reactive element. The reactive element provides high impedance at operating frequencies of the wireless portable communication device and diverts radio frequency currents from the first side of the printed circuit board to the second side of the printed circuit board such that a magnetic field produced by the radio frequency currents on the first side of the printed circuit board is reduced in the near-field.