TY - JOUR
T1 - MEMS based ultra-high order frequency multiplication utilizing superharmonic synchronization effect
AU - Wei, Xueyong
AU - Xu, Liu
AU - Jiang, Zhuangde
AU - Huan, Ronghua
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/12/1
Y1 - 2021/12/1
N2 - Frequency multipliers are widely present in electronic system, which always cooperates with low frequency local oscillator for delivering an output wave with a frequency that an exact integral multiple of the input frequency. Conventional frequency multiplier such as step recovery diode, field-effect transistors, low spurious harmonic, etc., usually has only two or three low multiplication factor. Multi-stage frequency doublers can accumulate the multiplication factor, however, has high power consumption and negative conversion gain. Here, we proposed a novel frequency multiplication mechanism utilizing superharmonic synchronization (SHS) effect in micromechanical resonator. We achieved up to 121th ultra-high frequency amplification with frequency stability of output signal 92 times improved and signal to noise ratio 20% increased. To solve the limitation of narrow synchronization range, a frequency automatic tracking system is designed to expand the working range from 0.62 Hz to 27.5 kHz. The proposed frequency amplification is a promising candidate for frequency multipliers and provides an alternative mechanism for micromechanical sensing and signal processing system.
AB - Frequency multipliers are widely present in electronic system, which always cooperates with low frequency local oscillator for delivering an output wave with a frequency that an exact integral multiple of the input frequency. Conventional frequency multiplier such as step recovery diode, field-effect transistors, low spurious harmonic, etc., usually has only two or three low multiplication factor. Multi-stage frequency doublers can accumulate the multiplication factor, however, has high power consumption and negative conversion gain. Here, we proposed a novel frequency multiplication mechanism utilizing superharmonic synchronization (SHS) effect in micromechanical resonator. We achieved up to 121th ultra-high frequency amplification with frequency stability of output signal 92 times improved and signal to noise ratio 20% increased. To solve the limitation of narrow synchronization range, a frequency automatic tracking system is designed to expand the working range from 0.62 Hz to 27.5 kHz. The proposed frequency amplification is a promising candidate for frequency multipliers and provides an alternative mechanism for micromechanical sensing and signal processing system.
KW - Frequency multiplication
KW - Micromechanical resonator
KW - RF MEMS
KW - Superharmonic synchronization
UR - https://www.scopus.com/pages/publications/85117346799
U2 - 10.1016/j.sna.2021.113152
DO - 10.1016/j.sna.2021.113152
M3 - 文章
AN - SCOPUS:85117346799
SN - 0924-4247
VL - 332
JO - Sensors and Actuators A: Physical
JF - Sensors and Actuators A: Physical
M1 - 113152
ER -