US 12,261,455 B2
System and method for wireless power reception
Christopher Joseph Daviantes, Oakland, CA (US)
Assigned to Reach Power, Inc., Redwood City, CA (US)
Filed by Reach Power, Inc., Redwood City, CA (US)
Filed on May 27, 2024, as Appl. No. 18/674,945.
Application 18/674,945 is a continuation of application No. 18/220,039, filed on Jul. 10, 2023, granted, now 12,074,453.
Application 18/220,039 is a continuation of application No. 17/528,869, filed on Nov. 17, 2021, granted, now 11,742,700, issued on Aug. 29, 2023.
Application 17/528,869 is a continuation of application No. 17/015,473, filed on Sep. 9, 2020, granted, now 11,211,826, issued on Dec. 28, 2021.
Application 17/015,473 is a continuation of application No. 16/001,628, filed on Jun. 6, 2018, granted, now 10,811,908, issued on Oct. 20, 2020.
Application 16/001,628 is a continuation in part of application No. 14/865,489, filed on Sep. 25, 2015, granted, now 10,090,707, issued on Oct. 2, 2018.
Claims priority of provisional application 62/515,962, filed on Jun. 6, 2017.
Claims priority of provisional application 62/055,283, filed on Sep. 25, 2014.
Prior Publication US 2024/0313583 A1, Sep. 19, 2024
Int. Cl. H02J 50/20 (2016.01); G01R 31/28 (2006.01); H02J 50/05 (2016.01); H02J 50/12 (2016.01); H02J 7/00 (2006.01); H02J 50/27 (2016.01)
CPC H02J 50/20 (2016.02) [G01R 31/2822 (2013.01); H02J 50/05 (2016.02); H02J 50/12 (2016.02); H02J 7/007 (2013.01); H02J 50/27 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A system comprising a radio frequency (RF) power receiver, the RF power receiver comprising:
a set of one or more antennas operable to receive RF power;
a power measurement network comprising:
a power coupler comprising: an input port, a transmitted port, and a coupled port; and
an RF power detector electrically coupled to the coupled port;
an impedance tuning network electrically coupling the set of antennas to the input port, the impedance tuning network defining an RF input impedance presented to the set of antennas; and
a control network configured to:
receive a signal from the RF power detector; and
based on the signal, modify the RF input impedance such that a portion of the RF power reflects off the impedance tuning network and re-radiates from the set of antennas.