Signal amplifying Josephson junction transmission line
AssigneeUniversity of Massachusetts
InventorsArchana Kamal, Chung S. Kow, Tristan B. Brown
Life of this patent
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Abstract
A transmission line as discussed herein includes: an input node operative to receive input derived from a primary signal and a pump signal; an output node operative to output an output signal; and circuitry disposed in a circuit path extending between the input node and the output node, the circuitry including a first Josephson junction component coupled between the circuit path and a reference voltage node, the circuitry operative to amplify the primary signal to produce the output signal.
Claims20
An apparatus comprising:
- an input node operative to receive input derived from a primary signal and a pump signal;
- an output node operative to output an output signal;
- and
- circuitry disposed in a circuit path extending between the input node and the output node, the circuitry including a first Josephson junction component coupled between the circuit path and a reference voltage node, the circuitry operative to amplify the primary signal to produce the output signal.
A system comprising:
- a directional coupler operative to receive a first signal and a second signal, the directional coupler operative to generate a third signal based on the first signal and the second signal;
- a transmission line including an input node and an output node, the input node of the transmission line coupled to the directional coupler to receive the third signal;
- and
- wherein the transmission line includes circuitry disposed in a circuit path extending between the input node and the output node, the circuitry including a first Josephson junction component coupled between the circuit path and a reference voltage node, the circuitry operative to amplify the first signal into a fourth signal outputted from the output node.
A method comprising:
- receiving an input at an input node of a transmission line, the input being a pump signal modulated with a primary signal;
- via circuitry disposed in a circuit path between the input node and an output node of the transmission line, amplifying the primary signal to produce an output signal, the circuitry including a first Josephson junction component coupled between the circuit path and a reference voltage node of the transmission line;
- and
- outputting the output signal from the output node.
An apparatus comprising:
- an input node operative to receive input derived from a primary signal and a pump signal;
- an output node operative to output an output signal;
- and
- circuitry disposed in a transmission line between the input node and the output node, the circuitry including a capacitor component disposed in series in a circuit path between the input node and the output node, the circuitry operative to amplify the primary signal to produce the output signal.
Dependencies are inferred from the claim text.