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US 12,525,919 B2Granted
Hybrid vacuum electronics communication and sensor system
AssigneeBoise State University
InventorsJim Browning, Ranajoy Bhattacharya, Robert Hay
Life of this patent
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Abstract
A device may include a substrate and an oscillation circuit integrated with the substrate. The oscillation circuit may include a field-emission-based vacuum transistor. The oscillation circuit may also include a capacitive transducer. An oscillation frequency of the oscillation circuit may be indicative of a magnitude of a temperature, a pressure, or a vibration at the capacitive transducer.
Claims20
A device comprising:
- a substrate;
- and
- an oscillation circuit integrated with the substrate, the oscillation circuit comprising:
- a field-emission-based vacuum transistor;
- and
- a capacitive transducer, wherein the capacitive transducer includes a thermal expansion material, and wherein a variable capacitance of the capacitive transducer is based on a temperature of the thermal expansion material,
- wherein the field-emission-based vacuum transistor and the capacitive transducer are configured in combination with other components to effect and sustain oscillation.
4 more elements
A device comprising:
- an oscillation circuit, the oscillation circuit comprising:
- at least one field-emission-based vacuum transistor;
- and
- at least one capacitive transducer, wherein the capacitive transducer comprises a cantilever positioned between a first electrode and a second electrode, and wherein a variable capacitance of the capacitive transducer is based on vibration of the cantilever,
- wherein the oscillation circuit omits any thermionic-emission-based vacuum device.
2 more elements
A device comprising:
- a substrate;
- and
- an oscillation circuit integrated with the substrate, the oscillation circuit comprising:
- a first field-emission-based vacuum transistor;
- additional field-emission-based vacuum transistors;
- and
- a capacitive transducer,
- wherein the oscillation circuit is a Wein bridge oscillation circuit, and wherein the first field-emission-based vacuum transistor, the additional field-emission-based vacuum transistors, and the capacitive transducer are configured in combination with other components to effect and sustain oscillation.
5 more elements
Dependencies are inferred from the claim text.