Nonlinear characteristics in radio frequency nanoelectromechanical resonators

Nonlinear dissipation in diamond nanoelectromechanical resonators

Frequency Stability and Noise Characteristics of Ultra-High Frequency (UHF) Nanoelectromechanical Resonators

Nanoelectromechanical silicon carbide doubly-clamped beam vibrating resonators operating in the ultra-high frequency (UHF) band, with resonance frequencies of 395MHz, 411MHz, 428MHz, and 482MH, and quality factors (Q’s) of 2000~3000, have been demonstrated. The readout of electromechanical resonances from the nanodevices is integrated with a low-noise phase-locked loop to implement real-time re...

Pull-In Retarding in Nonlinear Nanoelectromechanical Resonators Under Superharmonic Excitation

Microelectromechanical Resonators for Radio Frequency Communication Applications

Over the past few years, microelectromechanical system (MEMS) based on-chip resonators have shown significant potential for sensing and high frequency signal processing applications. This is due to their excellent features like small size, large frequency-quality factor product, low power consumption, low cost batch fabrication, and integrability with CMOS IC technology. Radio frequency communi...

Parametric amplification in single-walled carbon nanotube nanoelectromechanical resonators

The low quality factor (Q) of single-walled carbon nanotube (SWNT) resonators has limited their sensitivity in sensing application. To this end, we employ the technique of parametric amplification by modulating the spring constant of SWNT resonators at twice the resonant frequency and achieve 10 times Q enhancement. The highest Q obtained at room temperature is around 700, which is 3–4 times be...