Non-Degenerate Nanomechanical Parametric Amplifier
- Detailed Technology Description
- A new mechanical resonator parametric device has been developed which utilizes two small mechanical resonators that are electrostatically coupled.
- Others
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Patent: 6,900,575
- *Abstract
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A new mechanical resonator parametric device has been developed which utilizes two small mechanical resonators that are electrostatically coupled. A mechanical parametric device is formed using two electrostatically coupled resonators. The first resonator oscillates in response to a signal while the second resonator provides feedback, causing amplification of the oscillation of the first resonator. This novel device can also function as a frequency up or down converter.
In operation, the first resonator receives an input signal near its resonant frequency, and the input signal and a second signal are summed and provided to a second resonator. The resonant frequency of the second resonator is approximately equal to the second signal frequency. A width of response of the amplifier is tuned by varying the pump voltage. Resonant frequencies of corresponding individual oscillators are tuned by adjusting bias voltages. The resonators comprise torsional resonators consisting of a rectangular paddle suspended by narrow beams. The frequency of resonation of each of the resonators is different, and is varied by adjusting dimensions of the paddle and beams, and fine tuned by adjusting a bias voltage. The resonant frequency of the first resonator is tuned to a desired signal to be received. The second resonator is pumped with a signal that is the sum of approximately its resonant frequency plus the frequency of the received signal. Both resonators are also biased a desired amount.
Potential Applications: MEMs amplifiers for RF applications
- *Licensing
- Martin Teschlmt439@cornell.edu(607) 254-4454
- Country/Region
- USA
