Patents by Inventor Susan Anne Elizabeth Berggren

Susan Anne Elizabeth Berggren 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).

  • Patent number: 11169222
    Abstract: A system is provided for detecting a radio frequency signal. The system includes a dielectric platform, a first SQUID array, a second array of SQUIDs and a processing component. The dielectric platform has a first planar surface and a second planar surface that is disposed at an angle relative to the first planar surface. The first array of SQUIDs is disposed on the first planar surface and can output a first detection signal based on the radio frequency signal. The second array of SQUIDs is disposed on the second planar surface and can output a second detection signal based on the radio frequency signal. The processing component can determine a first plane from which the radio frequency signal is transmitting based on the first detection signal and the second detection signal.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: November 9, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Benjamin Taylor, Thomas Sheffield, Daniel Hallman, Susan Anne Elizabeth Berggren, Anna Leese de Escobar
  • Publication number: 20210096193
    Abstract: A system is provided for detecting a radio frequency signal. The system includes a dielectric platform, a first SQUID array, a second array of SQUIDs and a processing component. The dielectric platform has a first planar surface and a second planar surface that is disposed at an angle relative to the first planar surface. The first array of SQUIDs is disposed on the first planar surface and can output a first detection signal based on the radio frequency signal. The second array of SQUIDs is disposed on the second planar surface and can output a second detection signal based on the radio frequency signal. The processing component can determine a first plane from which the radio frequency signal is transmitting based on the first detection signal and the second detection signal.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 1, 2021
    Inventors: Benjamin Taylor, Thomas Sheffield, Daniel Hallman, Susan Anne Elizabeth Berggren, Anna Leese de Escobar
  • Patent number: 10847573
    Abstract: A device is disclosed that includes a substrate, a first superconducting quantum interference device (SQUID), a second SQUID and a third SQUID. The first SQUID is disposed on the substrate and has a first feature dimension, a second feature dimension and a first effective geometric magnetic inductance parameter value, ?L1. The second SQUID is disposed on the substrate and has the first feature dimension, a third feature dimension and a second effective geometric magnetic inductance parameter value, ?L2. The third SQUID is disposed on the substrate and has the first feature dimension, a fourth feature dimension and a third effective geometric magnetic inductance parameter value, ?L3, wherein ?L1<?L2<?L3.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: November 24, 2020
    Assignee: United States of America as Represented by the Secretary of the Navy
    Inventors: Susan Anne Elizabeth Berggren, Benjamin J. Taylor
  • Patent number: 10775451
    Abstract: 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: Grant
    Filed: September 12, 2018
    Date of Patent: September 15, 2020
    Assignee: United States Government as represented by the Secretary of the Navy
    Inventors: Anna Leese de Escobar, Robert Lewis Fagaly, Susan Anne Elizabeth Berggren, Benjamin Jeremy Taylor, Marcio Calixto de Andrade
  • Patent number: 10761152
    Abstract: 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: Grant
    Filed: September 12, 2018
    Date of Patent: September 1, 2020
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Anna Leese de Escobar, Robert Lewis Fagaly, Susan Anne Elizabeth Berggren, Benjamin Jeremy Taylor, Marcio Calixto de Andrade
  • Patent number: 10725141
    Abstract: First and second superconductive sensors receive an electromagnetic signal. The first and second superconductive sensors are spaced apart such that there is a phase difference between the electromagnetic signal as received at the first and second superconductive sensors. The first and second superconductive sensors output respective first and second voltage signals corresponding to the electromagnetic signal as received by the first and second superconductive sensors. A nonlinear detector detects a voltage difference between the first and second voltage signals and provides an output signal representing the detected voltage difference. The output signal corresponds to the phase difference between the electromagnetic signal as received at the first and second superconductive sensors.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 28, 2020
    Assignee: United States of America as represented by Secretary of the Navy
    Inventors: Benjamin J Taylor, Susan Anne Elizabeth Berggren, Anna Leese De Escobar
  • Publication number: 20200081075
    Abstract: 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: Application
    Filed: September 12, 2018
    Publication date: March 12, 2020
    Inventors: Anna Leese de Escobar, Robert Lewis Fagaly, Susan Anne Elizabeth Berggren, Benjamin Jeremy Taylor, Marcio Calixto de Andrade
  • Publication number: 20200081076
    Abstract: 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: Application
    Filed: September 12, 2018
    Publication date: March 12, 2020
    Inventors: Anna Leese de Escobar, Robert Lewis Fagaly, Susan Anne Elizabeth Berggren, Benjamin Jeremy Taylor, Marcio Calixto de Andrade
  • Publication number: 20200041602
    Abstract: First and second superconductive sensors receive an electromagnetic signal. The first and second superconductive sensors are spaced apart such that there is a phase difference between the electromagnetic signal as received at the first and second superconductive sensors. The first and second superconductive sensors output respective first and second voltage signals corresponding to the electromagnetic signal as received by the first and second superconductive sensors. A nonlinear detector detects a voltage difference between the first and second voltage signals and provides an output signal representing the detected voltage difference. The output signal corresponds to the phase difference between the electromagnetic signal as received at the first and second superconductive sensors.
    Type: Application
    Filed: July 31, 2018
    Publication date: February 6, 2020
    Inventors: BENJAMIN J. TAYLOR, SUSAN ANNE ELIZABETH BERGGREN, ANNA LEESE DE ESCOBAR
  • Patent number: 10514429
    Abstract: 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: Grant
    Filed: May 3, 2018
    Date of Patent: December 24, 2019
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Susan Anne Elizabeth Berggren, Robert Lewis Fagaly, Anna Leese de Escobar, Marcio de Andrade, Benjamin Jeremy Taylor
  • Publication number: 20190339339
    Abstract: 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: Application
    Filed: May 3, 2018
    Publication date: November 7, 2019
    Inventors: Susan Anne Elizabeth Berggren, Robert Lewis Fagaly, Anna Leese de Escobar, Marcio de Andrade, Benjamin Jeremy Taylor
  • Patent number: 10295614
    Abstract: The transfer function of a sensing device including a plurality of sensors is automatically adjusted based on a power level of an incident electromagnetic signal detected by the plurality of sensors. Each of the plurality of sensors is associated with a unique transfer function. An output from one of the plurality of sensors associated with a particular transfer function is automatically selected based on a power level of the detected incident electromagnetic signal. Responsive to a change in the power level of the detected electromagnetic signal, another output from a different one of the plurality of sensors associated with a different transfer function is selected. The transfer function is adjusted over time by automatically selecting outputs from different ones of the plurality of sensors based on changes in the power level of the detected incident electromagnetic signal.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: May 21, 2019
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Anna M. Leese de Escobar, Robert L. Fagaly, Susan Anne Elizabeth Berggren
  • Patent number: 10274548
    Abstract: 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: Grant
    Filed: August 8, 2016
    Date of Patent: April 30, 2019
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Susan Anne Elizabeth Berggren, Robert Lewis Fagaly
  • Patent number: 10234514
    Abstract: 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: Grant
    Filed: November 23, 2016
    Date of Patent: March 19, 2019
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Anna M. Leese de Escobar, Marcio Calixto de Andrade, Susan Anne Elizabeth Berggren, Robert Lewis Fagaly, Benjamin Jeremy Taylor
  • Publication number: 20190079145
    Abstract: The transfer function of a sensing device including a plurality of sensors is automatically adjusted based on a power level of an incident electromagnetic signal detected by the plurality of sensors. Each of the plurality of sensors is associated with a unique transfer function. An output from one of the plurality of sensors associated with a particular transfer function is automatically selected based on a power level of the detected incident electromagnetic signal. Responsive to a change in the power level of the detected electromagnetic signal, another output from a different one of the plurality of sensors associated with a different transfer function is selected. The transfer function is adjusted over time by automatically selecting outputs from different ones of the plurality of sensors based on changes in the power level of the detected incident electromagnetic signal.
    Type: Application
    Filed: September 14, 2017
    Publication date: March 14, 2019
    Applicant: United States of America as represented by Secretary of the Navy
    Inventors: Anna M. Leese de Escobar, Robert L. Fagaly, Susan Anne Elizabeth Berggren
  • Patent number: 10175308
    Abstract: A High Temperature Superconducting (HTS) Superconducting Quantum Interference Device and methods for fabrication can include at least one bi-Superconducting Quantum Interference Device. The bi-SQUID can include an HTS substrate that can be formed with a step edge. A superconducting loop of YBCO can be deposited on the step edge to establish two Josephson Junctions. A superconducting path that bi-sects the superconducting loop path can also be deposited onto the substrate. In some embodiments, the bisecting path can cross the step edge twice, and the bisecting path can be ion milled at one of the crossing points to round the bisecting path and thereby remove the fourth Josephson Junction at the other crossing point. In still other embodiments, the bisecting path can be completely on the upper shelf (or the lower shelf), and the bisecting path can be ion damaged, ion damaged, or particle damaged, to establish the third Josephson Junction.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: January 8, 2019
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Susan Anne Elizabeth Berggren, Benjamin J. Taylor, Anna Leese de Escobar
  • Patent number: 10177298
    Abstract: A Josephson junction device and methods for manufacture can include an untwinned YBa2Cu3Ox nanowire having crystallographic a- and b-axes. The nanowire can be established from YBa2Cu3Ox film (6.0?x?7.0) using a photolithography process, followed by an ion milling process, to yield the YBa2Cu3Ox nanowire. The crystallographic b-axis of the nanowire can be parallel to the long dimension of the nanowire. First and second gate structures can be placed on opposite sides of the nanowire across from each other, to establish first and second microgaps. A gate voltage can be selectively applied across the first and said second gate structures, which can further establish a selective electric field across the first and second microgaps. The electric field can be parallel to the nanowire crystallographic a-axis, to selectively cause an at will Josephson junction effect.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: January 8, 2019
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Benjamin J. Taylor, Teresa H. Emery, Susan Anne Elizabeth Berggren, Anna M. Leese de Escobar
  • Publication number: 20190004123
    Abstract: A High Temperature Superconducting (HTS) Superconducting Quantum Interference Device and methods for fabrication can include at least one bi-Superconducting Quantum Interference Device. The bi-SQUID can include an HTS substrate that can be formed with a step edge. A superconducting loop of YBCO can be deposited on the step edge to establish two Josephson Junctions. A superconducting path that bi-sects the superconducting loop path can also be deposited onto the substrate. In some embodiments, the bisecting path can cross the step edge twice, and the bisecting path can be ion milled at one of the crossing points to round the bisecting path and thereby remove the fourth Josephson Junction at the other crossing point. In still other embodiments, the bisecting path can be completely on the upper shelf (or the lower shelf), and the bisecting path can be ion damaged, ion damaged, or particle damaged, to establish the third Josephson Junction.
    Type: Application
    Filed: August 22, 2018
    Publication date: January 3, 2019
    Applicant: United States of America, as Represented by the Secretary of the Navy
    Inventors: Susan Anne Elizabeth Berggren, Benjamin J. Taylor, Anna Leese de Escobar
  • Patent number: 10078118
    Abstract: A High Temperature Superconducting (HTS) Superconducting Quantum Interference Device and methods for fabrication can include at least one bi-Superconducting Quantum Interference Device. The bi-SQUID can include an HTS substrate that can be formed with a step edge. A superconducting loop of YBCO can be deposited on the step edge to establish two Josephson Junctions. A superconducting path that bi-sects the superconducting loop path can also be deposited onto the substrate. In some embodiments, the bisecting path can cross the step edge twice, and the bisecting path can be ion milled at one of the crossing points to round the bisecting path and thereby remove the fourth Josephson Junction at the other crossing point. In still other embodiments, the bisecting path can be completely on the upper shelf (or the lower shelf), and the bisecting path can be ion damaged, ion damaged, or particle damaged, to establish the third Josephson Junction.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: September 18, 2018
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: Susan Anne Elizabeth Berggren, Benjamin J. Taylor, Anna Leese de Escobar
  • Patent number: 9991968
    Abstract: An electromagnetic signal is received at first and second Superconducting Quantum Interference Device (SQUID) SQUID arrays. The first and second SQUID arrays output respective voltage signals corresponding to the electromagnetic signal as received at the first and second SQUID arrays. The first and second SQUID arrays are spaced apart such that there is a phase difference between the electromagnetic signal as received at the first and second SQUID arrays. The phase difference results in a voltage amplitude difference. At least one of the voltage signals is applied to at least one reference optical signal input into an electro-optical device to modify the reference optical signal. The modified optical signal output by the electro-optical device includes a change compared to the reference optical signal. The change is indicative of the phase difference in the electromagnetic signal as received at the first and second SQUID arrays.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: June 5, 2018
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: Benjamin J. Taylor, Anna M. Leese de Escobar, Susan Anne Elizabeth Berggren