• Publications
  • Influence
A power-efficient dual-tank FSK demodulator for passive wireless microsystems
A dual-tank FSK demodulator to boost the amplitude of the received signal at FSK carrier frequencies subsequently power conversion efficiency is presented. A fast energy depletion technique isExpand
An ultra-low power voltage level shifter for passive wireless microsystems
An ultra-low power voltage level shifter that can shift a unipolar voltage to a bipolar voltage is proposed. A stable voltage swing at the output of the voltage level shifter is obtained by injectingExpand
Passive voltage shifters for analogue signaling
This study proposes passive voltage shifters that shift the median value of an analogue signal by either a multiple or a fraction of the amplitude of the input signal in positive or negativeExpand
A comparative study of low-power CMOS Gilbert mixers in weak and strong inversion
This paper presents a comparative study of 2.4 GHz double-balanced Gilbert mixers with devices operating in both weak and strong inversion. The current drawn from the supply voltage by the mixers inExpand
A Practical Estimation of Periodic Power Supply Induced Jitter for Clock Buffer Chains
TLDR
The closed-form expression is algebraically simple requiring only a few circuit simulation results without the pre-knowledge of circuit SPICE parameters and predicts MOS clock buffer’s period PSIJ and N-Cycle PSIJ. Expand
Passive voltage level shifters for analog signaling
  • Xiongliang Lai, F. Yuan
  • Engineering, Computer Science
  • 10th IEEE International NEWCAS Conference
  • 17 June 2012
TLDR
Passive voltage level shifters for analog signaling utilize the unique characteristics of diode-based voltage clampers and voltage rectifiers and shift the median value of an incoming analog signal in either positive or negative directions. Expand
Calibration Technique for Maximum Power Harvest of Passive Wireless Microsystems
TLDR
It is shown that both the impedance and resonant frequency of the step-up transformer matching network can be adjusted by varying the capacitance of a shunt varactor placed at the secondary winding of the transformer to maximize power transfer from the antenna to the transformer and the output voltage of the transformers subsequently the power efficiency of the voltage multiplier. Expand
Remote calibration of wireless power harvest
  • Xiongliang Lai, F. Yuan
  • Engineering, Computer Science
  • IEEE 56th International Midwest Symposium on…
  • 2 December 2013
TLDR
It is shown that both the impedance and resonant frequency of the transformer matching network are sensitive to process spread and load variation, and can be calibrated by tuning a shunt varactor at the secondary winding of the transformers to maximize power transfer from the antenna to the transformer and power efficiency of the voltage multiplier. Expand
Architecture of a dual-mode cascaded-loop frequency synthesizer
A new architecture for a frequency synthesizer with adjustable output frequency range and channel spacing is introduced. It is intended for the generation of closely spaced frequency channels in theExpand
Design and Analysis of a Dual-Mode Cascaded-Loop Frequency Synthesizer
TLDR
A new architecture for a frequency synthesizer with adjustable output frequency range and channel spacing is introduced, intended for the generation of closely spaced frequency channels in the GHz range while producing minimal spurious phase noise components. Expand
...
1
2
...