US 11,630,166 B1 · Superconducting quantum interference array receiver and method for digitally controlling magnetic flux bias thereof

Abstract

A receiver for detecting at least one electromagnetic signal while the receiver is moving relative to the Earth's magnetic field, the receiver comprising: an SQUID array for generating an output that is a transfer function of SQUID array magnetic flux that is supplied from a combination of an oscillating magnetic field of the at least one electromagnetic signal, the Earth's magnetic field, and a bias magnetic field; a bias-tee configured to divide the SQUID array output into a DC signal and an RF signal; a memory store configured to store a plurality of voltage and flux bias values, wherein each voltage value has a corresponding flux bias value that results in maximum SQUID array sensitivity; and a logic circuit configured to find a voltage value in the memory store that most closely matches the DC signal, and to apply to the SQUID array a flux bias corresponding to the most closely matched voltage value.

Claims16

Dependent claims

A receiver for detecting at least one electromagnetic signal while the receiver is moving with changing orientation relative to the Earth's magnetic field, the receiver comprising:

a superconducting quantum interference device array (SQUID array) for generating an output that is a transfer function of a magnetic flux through the SQUID array, wherein the magnetic flux is supplied from a combination of an oscillating magnetic field of the at least one electromagnetic signal, the Earth's magnetic field, and a bias magnetic field;
a bias-tee configured to divide the SQUID array output into a direct current (DC) signal and a radio frequency (RF) signal;
a memory store configured to store a plurality of voltage and flux bias values, wherein each voltage value has a corresponding flux bias value that results in maximum SQUID array sensitivity;
and
a logic circuit configured to find a voltage value in the memory store that most closely matches the DC signal, and to apply to the SQUID array a flux bias corresponding to the most closely matched voltage value.

2 more elements

Dependencies are inferred from the claim text.

Superconducting quantum interference array receiver and method for digitally controlling magnetic flux bias thereof

Life of this patent

Superconducting quantum interference array receiver and method for digitally controlling magnetic flux bias thereof

Life of this patent

Abstract

Claims16