Patents by Inventor Robert Lewis Fagaly
Robert Lewis Fagaly has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10775451Abstract: A superconducting quantum interference device (SQUID) for mobile magnetic sensing applications comprising: at least two Josephson junction electrically connected to a superconducting loop; and a resistive element connected in series with one of the Josephson junctions in the superconducting loop. The resistive element is disposed in the same superconducting loop as the at least two Josephson junctions.Type: GrantFiled: September 12, 2018Date of Patent: September 15, 2020Assignee: United States Government as represented by the Secretary of the NavyInventors: Anna Leese de Escobar, Robert Lewis Fagaly, Susan Anne Elizabeth Berggren, Benjamin Jeremy Taylor, Marcio Calixto de Andrade
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Patent number: 10761152Abstract: A superconducting quantum interference device (SQUID) for mobile applications comprising: a superconducting flux transformer having a pickup coil and an input coil, wherein the input coil is inductively coupled to a Josephson junction; a resistive element connected in series between the pickup coil and the input coil so as to function as a high pass filter such that direct current (DC) bias current is prevented from flowing through the input coil; and a flux bias circuit electrically connected in parallel to the superconducting flux transformer between the pickup coil and the input coil so as to reduce motion-induced noise.Type: GrantFiled: September 12, 2018Date of Patent: September 1, 2020Assignee: United States of America as represented by the Secretary of the NavyInventors: Anna Leese de Escobar, Robert Lewis Fagaly, Susan Anne Elizabeth Berggren, Benjamin Jeremy Taylor, Marcio Calixto de Andrade
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Publication number: 20200081076Abstract: A superconducting quantum interference device (SQUID) for mobile applications comprising: a superconducting flux transformer having a pickup coil and an input coil, wherein the input coil is inductively coupled to a Josephson junction; a resistive element connected in series between the pickup coil and the input coil so as to function as a high pass filter such that direct current (DC) bias current is prevented from flowing through the input coil; and a flux bias circuit electrically connected in parallel to the superconducting flux transformer between the pickup coil and the input coil so as to reduce motion-induced noise.Type: ApplicationFiled: September 12, 2018Publication date: March 12, 2020Inventors: Anna Leese de Escobar, Robert Lewis Fagaly, Susan Anne Elizabeth Berggren, Benjamin Jeremy Taylor, Marcio Calixto de Andrade
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Publication number: 20200081075Abstract: A superconducting quantum interference device (SQUID) for mobile magnetic sensing applications comprising: at least two Josephson junction electrically connected to a superconducting loop; and a resistive element connected in series with one of the Josephson junctions in the superconducting loop.Type: ApplicationFiled: September 12, 2018Publication date: March 12, 2020Inventors: Anna Leese de Escobar, Robert Lewis Fagaly, Susan Anne Elizabeth Berggren, Benjamin Jeremy Taylor, Marcio Calixto de Andrade
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Patent number: 10514429Abstract: An intrinsic superconducting gradiometer comprising: a first array having at least two superconducting devices, wherein the first array has upper and lower terminals located on opposite sides of the first array, wherein the upper terminal is configured to receive a bias signal; and a second array that is identical to, oriented the same as, and located in close proximity to the first array, wherein the second array's upper terminal is grounded and its lower terminal is electrically connected to the first array's lower terminal such that a measured voltage difference between the first array's upper terminal and the second array's upper terminal represents a net current generated by a gradient magnetic field where near-field measurements are cancelled, and wherein the intrinsic superconducting gradiometer is designed to provide the measured voltage difference that is directly proportional to the magnetic field gradient without being connected to any external coils or flux transducers.Type: GrantFiled: May 3, 2018Date of Patent: December 24, 2019Assignee: United States of America as represented by the Secretary of the NavyInventors: Susan Anne Elizabeth Berggren, Robert Lewis Fagaly, Anna Leese de Escobar, Marcio de Andrade, Benjamin Jeremy Taylor
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Publication number: 20190339339Abstract: An intrinsic superconducting gradiometer comprising: a first array having at least two superconducting devices, wherein the first array has upper and lower terminals located on opposite sides of the first array, wherein the upper terminal is configured to receive a bias signal; and a second array that is identical to, oriented the same as, and located in close proximity to the first array, wherein the second array's upper terminal is grounded and its lower terminal is electrically connected to the first array's lower terminal such that a measured voltage difference between the first array's upper terminal and the second array's upper terminal represents a net current generated by a gradient magnetic field where near-field measurements are cancelled, and wherein the intrinsic superconducting gradiometer is designed to provide the measured voltage difference that is directly proportional to the magnetic field gradient without being connected to any external coils or flux transducers.Type: ApplicationFiled: May 3, 2018Publication date: November 7, 2019Inventors: Susan Anne Elizabeth Berggren, Robert Lewis Fagaly, Anna Leese de Escobar, Marcio de Andrade, Benjamin Jeremy Taylor
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Patent number: 10274548Abstract: A device in accordance with several embodiments can include a plurality of N Superconducting Quantum Interference Devices (SQUIDs), which can be divided into a plurality of sub-blocks of SQUIDs. The SQUIDs in the sub-blocks can be RF SQUIDs, DC SQUIDs or bi-SQUIDs. The sub-blocks can be arranged in a plurality of X tiers, with each Ti tier having a different number of sub-blocks of SQUIDs than an immediately adjacent Ti tier. Each Ti tier can have the same total bias current; and can have SQUIDs with different critical currents and loop sizes, with the different loop sizes on each tier having a Gaussian distribution of between 0.5 and 1.5 (or a random distribution). Additionally, the Arrays can be configured as three independent planar arrays of SQUIDs. The three planar arrays can be triangular when viewed in top plan, and can be arranged so that they are orthogonal to each other.Type: GrantFiled: August 8, 2016Date of Patent: April 30, 2019Assignee: United States of America as represented by the Secretary of the NavyInventors: Susan Anne Elizabeth Berggren, Robert Lewis Fagaly
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Patent number: 10234514Abstract: An antenna includes a plurality of superconducting quantum interference device (SQUID) arrays on a chip, and a printed circuit board (PCB) formed with a cutout for receiving the chip. The PCB is formed with a set of coplanar transmission lines, and the chip is inserted into the cutout so that each said transmission line connects to a respective SQUID array. A cryogenic system can cool the chip to a temperature that causes a transition to superconductivity for the SQUID arrays. A thermal radome can be placed around the chip, the PCB and the cryogenic system to maintain the temperature. A DC bias can be applied to the SQUID arrays to facilitate RF detection. The SQUID array, chip and CPW transmission lines can cooperate to allow for both detection of said RF energy and conversion of said RF energy to a signal without requiring the use of a conductive antenna dish.Type: GrantFiled: November 23, 2016Date of Patent: March 19, 2019Assignee: The United States of America, as Represented by the Secretary of the NavyInventors: Anna M. Leese de Escobar, Marcio Calixto de Andrade, Susan Anne Elizabeth Berggren, Robert Lewis Fagaly, Benjamin Jeremy Taylor
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Publication number: 20170146618Abstract: An antenna includes a plurality of superconducting quantum interference device (SQUID) arrays on a chip, and a printed circuit board (PCB) formed with a cutout for receiving the chip. The PCB is formed with a set of coplanar transmission lines, and the chip is inserted into the cutout so that each said transmission line connects to a respective SQUID array. A cryogenic system can cool the chip to a temperature that causes a transition to superconductivity for the SQUID arrays. A thermal radome can be placed around the chip, the PCB and the cryogenic system to maintain the temperature. A DC bias can be applied to the SQUID arrays to facilitate RF detection. The SQUID array, chip and CPW transmission lines can cooperate to allow for both detection of said RF energy and conversion of said RF energy to a signal without requiring the use of a conductive antenna dish.Type: ApplicationFiled: November 23, 2016Publication date: May 25, 2017Applicant: United States of America, as Represented by the Secretary of the NavyInventors: Anna M. Leese de Escobar, Marcio Calixto de Andrade, Susan Anne Elizabeth Berggren, Robert Lewis Fagaly, Benjamin Jeremy Taylor
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Publication number: 20170045592Abstract: A device in accordance with several embodiments can include a plurality of N Superconducting Quantum Interference Devices (SQUIDs), which can be divided into a plurality of sub-blocks of SQUIDs. The SQUIDs in the sub-blocks can be RF SQUIDs, DC SQUIDs or bi-SQUIDs. The sub-blocks can be arranged in a plurality of X tiers, with each Ti tier having a different number of sub-blocks of SQUIDs than an immediately adjacent Ti tier. Each Ti tier can have the same total bias current; and can have SQUIDs with different critical currents and loop sizes, with the different loop sizes on each tier having a Gaussian distribution of between 0.5 and 1.5 (or a random distribution). Additionally, the Arrays can be configured as three independent planar arrays of SQUIDs. The three planar arrays can be triangular when viewed in top plan, and can be arranged so that they are orthogonal to each other.Type: ApplicationFiled: August 8, 2016Publication date: February 16, 2017Applicant: United States of America, as Represented by the Secretary of the NavyInventors: Susan Anne Elizabeth Berggren, Robert Lewis Fagaly