Receive antenna for wireless power transfer
AssigneeQUALCOMM Incorporated
InventorsAlireza Hormoz Mohammadian, Sreenivas Kasturi, Miles Alexander Lyell Kirby, Ernest T. Ozaki, Stanley Slavko Toncich, Allen Minh-Triet Tran
Life of this patent
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Abstract
Exemplary embodiments are directed to wireless power transfer to an electronic circuit including a wireless charging receive antenna comprising a first loop of an energy receiving conductor and at least another loop of said energy receiving conductor electrically coupled to the first loop. The loops form a multi-turn loop antenna to resonate at a wireless charging frequency and provide wirelessly received power to the electronic device. The multi-turn loop antenna is configured for affixing to a housing of the wireless device.
Claims23
A wireless charging receiver, comprising:
- a first loop antenna having an energy receiving conductor and configured to resonate at a wireless charging frequency, the first loop antenna configured to transfer wirelessly received power to an electronic device, the first loop antenna being formed on or embedded in a housing of the electronic device, the first loop antenna comprising a first portion located on a first plane and a second portion extending from the first portion and located on a second plane different from the first plane;
- and
- a second loop antenna having an energy receiving conductor electrically coupled to the first loop antenna to form a multi-loop antenna.
An apparatus, comprising:
- an electronic circuit in a housing of a device configured to perform an electronic function of the device;
- and
- a wireless charging receiver coupled to the electronic circuit and configured to transfer wirelessly received power to the electronic circuit, the wireless charging receiver including:
- a first loop antenna having an energy receiving conductor and configured to resonate at a wireless charging frequency, the first loop antenna being formed on or embedded in the housing of the device, the first loop antenna comprising a first portion located on a first plane and a second portion extending from the first portion and located on a second plane different from the first plane;
- and
- a second loop antenna having an energy receiving conductor electrically coupled to the first loop antenna to form a multi-loop antenna.
A wireless device, comprising:
- a housing;
- an electronic circuit enclosed within the housing;
- and
- wireless charging circuitry configured to transfer power to the electronic circuit, the wireless charging circuitry comprising:
- a multi-turn loop antenna configured to resonate in a charging region of a resonating transmitter and to receive power therefrom, the multi-turn loop antenna formed on or embedded in the housing, the multi-turn loop antenna comprising a first portion located on a first plane and a second portion extending from the first portion and located on a second plane different from the first plane.
A method of receiving power via a wireless field, the method comprising:
- resonating a first loop antenna having an energy receiving conductor at a wireless charging frequency, the first loop antenna configured to receive power via the wireless field;
- and
- transferring the received power to an electronic device, the first loop antenna being formed on or embedded in a housing of the electronic device, the first loop antenna comprising a first portion located on a first plane and a second portion extending from the first portion and located on a second plane different from the first plane, the first loop antenna and a second loop antenna configured to form a multi-loop antenna, the second loop antenna having an energy receiving conductor electrically coupled to the first loop antenna.
An apparatus for receiving power via a wireless field, the apparatus comprising:
- first means for resonating at a wireless charging frequency, the first resonating means having an energy receiving conductor and being configured to receive power via the wireless field, the first resonating means comprising a first portion located on a first plane and a second portion extending from the first portion and located on a second plane different from the first plane;
- means for transferring the received power to an electronic device, the first resonating means being formed on or embedded in a housing of the electronic device;
- and
- second means for resonating having an energy receiving conductor electrically coupled to the first resonating means to form a multi-loop antenna.
Dependencies are inferred from the claim text.