Traveling-wave surface acoustic wave transducer and interconverting an electrical signal and a surface acoustic waves
OwnerAdam Nykoruk McCaughan, Ryan Anthony DeCrescent +1inventors
InventorsAdam Nykoruk McCaughan, Ryan Anthony DeCrescent, Kevin Lawrence Silverman
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Abstract
A traveling-wave surface acoustic wave transducer includes a superconducting wire arranged in a meander configuration to create a meander of superconducting wire, and a piezoelectric crystal that has an induced electrical field in response to piezoelectric action from surface acoustic waves and/or from an input electrical signal traveling through the meander of superconducting wire.
Claims13
A traveling-wave surface acoustic wave transducer comprises:
- a superconducting wire arranged in a meander configuration to create a meander of superconducting wire;
- and
- a piezoelectric crystal that has an induced electrical field in response to piezoelectric action from surface acoustic waves and/or from an input electrical signal traveling through the meander of superconducting wire.
A process for interconverting an electrical signal and a surface acoustic waveform comprises:
- impinging a surface acoustic wave onto a meander of superconducting wire;
- converting the surface acoustic waves coherently into a transduced electrical signal due to velocity matching condition between a net electrical velocity in a direction and surface acoustic wave velocity in the same direction;
- and
- sending the transduced electrical signal out to a terminal.
A process for making exemplary traveling-wave surface acoustic wave transducers, comprising:
- starting with a piezoelectric crystal;
- patterning on the piezoelectric crystal a meander of superconducting wire with dimensions such that an effective electrical velocity in a direction along a piezoelectric axis matches a surface acoustic wave velocity in the same direction;
- connecting a first terminal to a second terminal via the meander of superconducting wire;
- depositing on top, a dielectric layer to insulate the wire from a ground plane;
- and
- depositing on top of the dielectric layer the ground plane, thereby forming a microwave transmission line.
Dependencies are inferred from the claim text.