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BPN630: Capacitive-Gap Micromechanical Local Oscillator At GHz Frequencies

Project ID BPN630
Website
Start Date Tue 2011-Aug-16 11:49:25
Last Updated Wed 2013-Jan-30 15:00:54
Abstract This project aims to build a MEMS-based on-chip reference oscillator at GHz frequencies. By constructing an array of capacitive transduced micromechanical resonators with extremely small capacitive gaps and high mechanical Q, in conjunction with a low-power CMOS ASIC amplifier, it becomes possible to achieve self-sustained oscillation in a die-level system. The high mechanical Q of these devices, which can reach an extraordinary >40,000 at frequencies up to 3GHz, allows the possibility for unprecedented phase noise performance. Many applications for such high-frequency, low phase-noise oscillators exist, ranging from prosaic mobile communications oscillators, to more exotic uses such as reference clocks for chip-scale atomic clocks.
Status Continuing
Funding Source Federal
IAB Research Area Wireless, RF & Smart Dust
Researcher(s) Tristan O. Rocheleau, Thura Lin Naing
Advisor(s) Clark T.-C. Nguyen
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