Invention Grant
- Patent Title: Antenna design for reduced specific absorption rate
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Application No.: US14082418Application Date: 2013-11-18
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Publication No.: US09812773B1Publication Date: 2017-11-07
- Inventor: Ming Zheng
- Applicant: Amazon Technologies, Inc.
- Applicant Address: US WA Seattle
- Assignee: Amazon Technologies, Inc.
- Current Assignee: Amazon Technologies, Inc.
- Current Assignee Address: US WA Seattle
- Agency: Weaver Austin Villeneuve & Sampson LLP
- Main IPC: H01Q1/52
- IPC: H01Q1/52 ; H01Q1/24 ; H01Q21/00 ; H01Q5/392 ; H01Q5/378

Abstract:
An antenna for use in portable wireless devices is described for which SAR is significantly reduced relative to conventional antenna designs for the same transmit power. The antenna includes a primary antenna element and one or more parasitic antenna elements. Each parasitic antenna element is electromagnetically coupled to the primary antenna element so as to spread out the RF energy associated with SAR hotspots.
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