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:
Sep. 28, 2021
Filed:
Aug. 28, 2017
Applicant:
Aeternum, Llc, Dulles, VA (US);
Inventors:
Assignee:
Aeternum, LLC, Dulles, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 1/24 (2006.01); H01Q 5/364 (2015.01); H01Q 9/04 (2006.01); H02J 50/20 (2016.01); H02J 7/02 (2016.01);
U.S. Cl.
CPC ...
H01Q 1/248 (2013.01); H01Q 5/364 (2015.01); H01Q 9/045 (2013.01); H01Q 9/0421 (2013.01); H01Q 9/0442 (2013.01); H02J 7/025 (2013.01); H02J 50/20 (2016.02);
Abstract
A rectenna for high efficiency RF-to-DC wireless energy harvesting that includes an off-center-fed patch (OCFP) antenna and a rectifying circuit. The input impedance of the antenna may be tunable and directly conjugate matched to an impedance of the rectifying circuit over a wide range of frequencies and/or under different operating conditions. An impedance matching network required by rectenna systems may therefore be eliminated using the methods disclosed for the design and implementation of the OCFP rectenna. The OCFP rectenna offers consistently high RF-to-DC power conversion efficiency over a wide range of frequencies and under different operating conditions.