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:
Jun. 22, 2021
Filed:
Mar. 15, 2016
Verily Life Sciences Llc, Mountain View, CA (US);
Jiang Zhu, Cupertino, CA (US);
Stephen O'Driscoll, San Francisco, CA (US);
VERILY LIFE SCIENCES LLP, South San Francisco, CA (US);
Abstract
The present disclosure relates to systems for providing wireless power to implanted devices. Consistent with some embodiments, an antenna system for providing wireless power to an implanted device includes a primary antenna loop and at least one parasitic antenna loop. The primary antenna loop is configured to receive power from a power source and radiate the power toward the implanted device. The at least one parasitic antenna loop is configured to absorb a portion of the radiated power and to reradiate the absorbed power toward the implanted device. The power radiated by the primary antenna loop and the power reradiated by the at least one parasitic antenna loop form a wireless power transmission pattern broadly distributed at the surface of the individual's skin and becomes more focused as it travels into the individual's body toward the implanted device. The broad distribution pattern at the surface of the skin reduces the specific absorption rate of the transmission while focusing the transmission as it toward the implanted device improves the antenna system's transfer efficiency.