2009 Publications

2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009

  • Software-Defined Cognitive Radio [2009]
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  • Arraying to Reduce Standard Deviation [200]
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  • Micromechanical Displacement Amplifier [2009]
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  • Unbalanced Array-Based Micromechanical Displacement Amplifier [2009]
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The year 2009 introduced the potential use of micromechanical signal processors to make possible a physical spectrum sensing cognitive radio, which would then drive high-Q resonator research of years to come. It was also the advent of micromechanical displacement amplifier circuits, using coupled slotted resonators or unbalanced resonator arrays, which years later played key roles in optomechanical oscillators and all-mechanical resoswitch-based communication receivers. Finally, cryogenic measurements of polysilicon micromechanical resonators done this year revealed Q‘s >350,000 at very low temperatures.

B. Kim, Y. Lin, W.-L. Huang, M. Akgul, W.-C. Li, Z. Ren, and C. T.-C. Nguyen, “Micromechanical resonant displacement gain stages,” Tech. Digest, 22nd IEEE Int. Conf. on Micro Electro Mechanical Systems (MEMS’09), Sorrento, Italy, Jan. 25-29, 2009, pp. 19-22.

Y. Lin, W.-C. Li, B. Kim, Y.-W. Lin, Z. Ren, and C. T.-C. Nguyen, “Enhancement of micromechanical resonator manufacturing precision via mechanically-coupled arraying,” Proceedings, 2009 IEEE Int. Frequency Control Symp., Besancon, France, April 20-24, 2009, pp. 58-63.

W.-C. Li, Y. Lin, B. Kim, Z. Ren, and C. T.-C. Nguyen, “Quality factor enhancement in micromechanical resonators at cryogenic temperatures,” the 15th Int. Conf. on Solid-State Sensors, Actuators, & Microsystems (Transducers’09), Denver, Colorado, June 21-25, 2009, pp. 1445-1448.

Y. Lin, W.-C. Li, I. Gurin, S.-S. Li, Y.-W. Lin, Z. Ren, B. Kim, and C. T.-C. Nguyen, “Digitally-specified micromechanical displacement amplifiers,” the 15th Int. Conf. on Solid-State Sensors, Actuators, & Microsystems (Transducers’09), Denver, Colorado, June 21-25, 2009, pp. 781-784.

M. Akgul, B. Kim, L.-W. Hung, Y. Lin, W.-C. Li, W.-L. Huang, I. Gurin, A. Borna, and C. T.-C. Nguyen, “Oscillator far-from-carrier phase noise reduction via nano-scale gap tuning of micromechanical resonators,” the 15th Int. Conf. on Solid-State Sensors, Actuators, & Microsystems (Transducers’09), Denver, Colorado, June 21-25, 2009, pp. 798-801.

C. T.-C. Nguyen, “Integrated micromechanical RF circuits for software-defined cognitive radio (invited plenary),” Proceedings, the 26th Symposium on Sensors, Micromachines & Applied Systems, Tokyo, Japan, Oct. 15-16, 2009, pp. 1-5.

C. T.-C. Nguyen, “Radios with micromachined resonators,” IEEE Spectrum, Nov. 30, 2009, https://spectrum.ieee.org/telecom/wireless/radios-with-micromachined-resonators.