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.

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.

Abstract: Disclosed is a transceiver that includes a three-dimensional array of Josephson junctions. When transmitting, the junctions drive an array of micro-antennas. When receiving, the micro-antennas drive the array of Josephson junctions. By extending the junction array into the third dimension, this transceiver packages a large number of Josephson junctions into a small volume, thus increasing the power of a transmitted beam. Multiple different micro-antenna arrays can be included, thus allowing the transceiver to work efficiently at multiple frequency ranges.

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.

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.

Abstract: Disclosed is a transceiver that includes a three-dimensional array of Josephson junctions. When transmitting, the junctions drive an array of micro-antennas. When receiving, the micro-antennas drive the array of Josephson junctions. By extending the junction array into the third dimension, this transceiver packages a large number of Josephson junctions into a small volume, thus increasing the power of a transmitted beam. Multiple different micro-antenna arrays can be included, thus allowing the transceiver to work efficiently at multiple frequency ranges.

Abstract: A detection device detects the presence of a chemical or biological agent in an environment. The detection device includes a metal layer including a plurality of electrodes. The device further includes a graphene layer covering a surface of the metal layer of electrodes and a detection layer connected to the electrodes. Contact of a biological or chemical agent with a surface of the graphene layer causes a change in resistance of the graphene layer. The detection layer includes detection circuitry configured to detect the change in resistance as a function of a measured change in a current or voltage between adjacent electrodes.

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.

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.