# US 2017/0288459 A1 · Misalignment insensitive wireless power transfer with cylindrical, spherical and conical transmitter and receiver elements > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0288459 A1 - Document ID: US20170288459A1 - Status: Published application - Kind: A1 - Application number: 15/084,836 - Filed: 2016-03-30 - Published: 2017-10-05 - Earliest claimed: 2016-03-30 - Assignees: The Florida International University Board of Trustees - Inventors: Stavros Georgakopoulos - Web page: https://patentgrep.com/patent/US20170288459A1 ## CPC - H02J 50/12: of the resonant type - H01F 27/2804: {Printed windings} - H01F 38/14: Inductive couplings - H02J 50/005: {Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices} - H04B 5/79: for data transfer in combination with power transfer - H05K 1/028: {Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence)} - H05K 1/165: {incorporating printed inductors} - H05K 1/0284: {Details of three-dimensional rigid printed circuit boards (H05K1/119 takes precedence; shaping of the substrate H05K3/0014)} - H05K 1/0393: {Flexible materials (H05K1/038 takes precedence; specific organic compositions are classified in H05K1/0313 and subgroups)} - H05K 3/103: {by bonding or embedding conductive wires or strips} - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - H04B: TRANSMISSION - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract Wireless power transfer systems including wireless transmitter and receivers, which are insensitive to misalignment, are provided. A wireless power transfer system can include a first conductive loop that has cylindrical, conical, or spherical symmetry. The wireless power transfer system can further include a second conductive loop that is formed around the first conductive loop, and can also share the same type of symmetry as the first conductive loop. The wireless transfer system can be a wearable device or an implantable device. ## Claims ### Claim 1 A wireless power transfer system, comprising: a first conductive loop that has cylindrical, conical, or spherical symmetry. ### Claim 2 (depends on 1) The wireless power transfer system according to claim 1, wherein the first conductive loop has cylindrical symmetry. ### Claim 3 (depends on 1) The wireless power transfer system according to claim 1, wherein the first conductive loop has conical symmetry. ### Claim 4 (depends on 1) The wireless power transfer system according to claim 1, wherein the first conductive loop has spherical symmetry. ### Claim 5 (depends on 1) The wireless power transfer system according to claim 1, further comprising a second conductive loop formed around the first conductive loop and also having a same type of symmetry as the first conductive loop. ### Claim 6 (depends on 5) The wireless power transfer system according to claim 5, wherein the first conductive loop is a source or load, and the second conductive loop is a resonator. ### Claim 7 (depends on 6) The wireless power transfer system according to claim 6, wherein the first conductive loop is a load that is included within a wireless power receiver. ### Claim 8 (depends on 7) The wireless power transfer system according to claim 7, wherein the wireless power transfer system is a wearable device. ### Claim 9 A wireless power transfer system, comprising: a wireless power receiver that includes a first conductive loop that has cylindrical symmetry. ### Claim 10 (depends on 9) The wireless power transfer system according to claim 9, wherein the wireless power receiver further comprises a second conductive loop, which also has cylindrical symmetry, around the first conductive loop, and wherein the first conductive loop is a load and the second conductive loop is a resonator. ### Claim 11 (depends on 10) The wireless power transfer system according to claim 10, wherein the wireless power receiver is a wearable device. ### Claim 12 (depends on 11) The wireless power transfer system according to claim 11, wherein the wireless power receiver is formed on a flexible substrate. ### Claim 13 (depends on 12) The wireless power transfer system according to claim 12, wherein an arc of the resonator spans from 90 degrees to 360 degrees of the cylinder. ### Claim 14 (depends on 12) The wireless power transfer system according to claim 12, wherein an arc of the resonator spans from 330 degrees to 355 degrees. ### Claim 15 (depends on 13) The wireless power transfer system according to claim 13, wherein an arc of the load spans from 80 percent to 90 percent of the resonator arc. ### Claim 16 A wireless power transfer system, comprising: a wireless power receiver including a first conductive loop that has conical symmetry; and a second conductive loop, which also has conical symmetry, around the first conductive loop, wherein the first conductive loop is a load and the second conductive loop is a resonator. ### Claim 17 (depends on 16) The wireless power transfer system according to claim 16, wherein the wireless power receiver is packaged as a wearable device. ### Claim 18 (depends on 17) The wireless power transfer system according to claim 17, wherein the wireless power receiver is formed on a flexible substrate. ### Claim 19 (depends on 18) The wireless power transfer system according to claim 18, wherein an arc of the resonator spans from 330 degrees to 355 degrees of the cone. ### Claim 20 (depends on 18) The wireless power transfer system according to claim 18, wherein an arc of the resonator spans from 90 degrees to 360 degrees of the cone.