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:
Apr. 16, 2013
Filed:
May. 07, 2010
Xiaomeng Su, San Diego, CA (US);
Ting Ting Dong, Shanghai, CN;
Sebastian Rowson, San Diego, CA (US);
Jeffrey Shamblin, San Marcos, CA (US);
Laurent Desclos, San Diego, CA (US);
Xiaomeng Su, San Diego, CA (US);
Ting Ting Dong, Shanghai, CN;
Sebastian Rowson, San Diego, CA (US);
Jeffrey Shamblin, San Marcos, CA (US);
Laurent Desclos, San Diego, CA (US);
Ethertronics, Inc., San Diego, CA (US);
Abstract
A spatial filter is developed for specific absorption rate (SAR) reduction in a wireless device. A conductive element is designed to modify the near field distribution of an antenna operating in a wireless device. This reduces SAR while minimizing degradation of antenna efficiency at one or several frequency bands that the antenna is designed to operate over. Lumped reactance can be designed into the conductive element to generate low pass, band pass, and/or high pass frequency characteristics. Distributed reactance can be designed into the conductive element to replace or to work in conjunction with the lumped reactance. Active components can be designed into the conductive element to provide dynamic tuning of the frequency response of the conductive element.