3D ceramic mold antenna
First Claim
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1. An antenna, comprising:
- a plurality of unit cells configured to radiate radio frequency (RF) power transmission signals, each of the unit cells comprising;
a feed point including an electrical conductor;
a three-dimensional resonator element configured to radiate a RF power transmission signal provided through the feed point to a wireless-power-receiving device, wherein;
the three-dimensional resonator element is helical shaped and includes a plurality of turns, anda frequency and directivity of the RF power transmission signal are based on a number of turns in the plurality of turns;
a substrate embedding the three-dimensional resonator element, wherein the substrate is made of a dielectric material; and
a wall that surrounds at least a part of the substrate, wherein;
the wall is made of a metallic material that is distinct from the dielectric material, andthe wall is configured to (i) act as a waveguide or quasi-waveguide structure for the RF power transmission signal to guide it towards the wireless-power-receiving device and (ii) isolate transmission of the RF power transmission signal by a respective unit cell from RF power transmission by neighboring unit cells of the plurality of units cells, anda support base surrounding a bottom portion of the three-dimensional resonator element, the support base operating as a ground plane for the three-dimensional resonator element,wherein at least one substrate included in at least one of the plurality of unit cells has a different permittivity than a remainder of the plurality of unit cells other than the at least one of the plurality of unit cells; and
wherein the wireless-power-receiving device converts received RF power transmission signals into usable energy for powering an electronic device coupled to the wireless-power-receiving device.
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Abstract
An antenna include a resonator element configured to radiate a wireless signal and a substrate embedding the resonator. The resonator element may be a 3D resonator element. The 3D resonator element may be a helical resonator element.
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Citations
25 Claims
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1. An antenna, comprising:
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a plurality of unit cells configured to radiate radio frequency (RF) power transmission signals, each of the unit cells comprising; a feed point including an electrical conductor; a three-dimensional resonator element configured to radiate a RF power transmission signal provided through the feed point to a wireless-power-receiving device, wherein; the three-dimensional resonator element is helical shaped and includes a plurality of turns, and a frequency and directivity of the RF power transmission signal are based on a number of turns in the plurality of turns; a substrate embedding the three-dimensional resonator element, wherein the substrate is made of a dielectric material; and a wall that surrounds at least a part of the substrate, wherein; the wall is made of a metallic material that is distinct from the dielectric material, and the wall is configured to (i) act as a waveguide or quasi-waveguide structure for the RF power transmission signal to guide it towards the wireless-power-receiving device and (ii) isolate transmission of the RF power transmission signal by a respective unit cell from RF power transmission by neighboring unit cells of the plurality of units cells, and a support base surrounding a bottom portion of the three-dimensional resonator element, the support base operating as a ground plane for the three-dimensional resonator element, wherein at least one substrate included in at least one of the plurality of unit cells has a different permittivity than a remainder of the plurality of unit cells other than the at least one of the plurality of unit cells; and wherein the wireless-power-receiving device converts received RF power transmission signals into usable energy for powering an electronic device coupled to the wireless-power-receiving device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of manufacturing an antenna, said method comprising:
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providing a plurality of unit cells configured to radiate radio frequency (RF) power transmission signals, and for each of the unit cells; forming a feed point including an electrical conductor; forming a three-dimensional resonator element configured to radiate an RF power transmission signal provided through the feed point to a wireless-power-receiving device; embedding the three-dimensional resonator element in a substrate, wherein; the three-dimensional resonator element is helical shaped and includes a plurality of turns, a frequency and directivity of the RF power transmission signal are based on a number of turns in the plurality of turns, and the substrate is made of a dielectric material; providing a wall that surrounds at least a part of the substrate, wherein; the wall is made of a metallic material that is distinct from the dielectric material, and the wall is configured to (i) act as a waveguide or quasi-waveguide structure for the RF power transmission signal to guide it towards the wireless-power-receiving device and (ii) isolate transmission of the RF power transmission signal by a respective unit cell from RF power transmission by neighboring unit cells of the plurality of units cells; and providing a support base that surrounds a bottom portion of the three-dimensional resonator element, the support base operating as a ground plane for the three-dimensional resonator element, wherein at least one substrate included in at least one of the plurality of unit cells has a different permittivity than a remainder of the plurality of unit cells other than the at least one of the plurality of unit cells; and wherein the wireless-power-receiving device converts received RF power transmission signals into usable energy for powering an electronic device coupled to the wireless-power-receiving device. - View Dependent Claims (20)
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21. An apparatus for wirelessly charging a battery, said apparatus comprising:
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a transmitter including; a plurality of unit cells configured to radiate radio frequency (RF) power transmission signals, each of the unit cells comprising; a feed point including an electrical conductor; a three-dimensional antenna element configured to radiate a RF power transmission signal for use in charging a battery, the RF power transmission signal provided through the feed point to a wireless-power-receiving device, wherein; the three-dimensional antenna element is helical shaped and includes a plurality of turns, and a frequency and directivity of the RF power transmission signal are based on a number of turns in the plurality of turns; a substrate embedding the three-dimensional antenna element, wherein the substrate is made of a dielectric material; a base on which the substrate is positioned, wherein the base operates as a ground plane for the three-dimensional antenna element, and the base surrounds a bottom portion of the three-dimensional antenna element; and a wall that surrounds at least a part of the substrate, wherein; the wall is made of a metallic material that is distinct from the dielectric material, and the wall is configured to (i) act as a waveguide or quasi-waveguide structure for the RF power transmission signal to guide it towards the wireless-power-receiving device and (ii) isolate transmission of the RF power transmission signal by a respective unit cell from RF power transmission by neighboring unit cells of the plurality of units cells, wherein at least one substrate included in at least one of the plurality of unit cells has a different permittivity than a remainder of the plurality of unit cells other than the at least one of the plurality of unit cells; and wherein the wireless-power-receiving device converts received RF power transmission signals into usable energy for powering an electronic device coupled to the wireless-power-receiving device. - View Dependent Claims (22, 23, 24, 25)
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Specification