An Ultra-Low-Power Oscillator with Temperature and Process Compensation for UHF RFID Transponder

This paper presents a 1.28MHz ultra-low-power oscillator with temperature and process compensation. It is very suitable for clock generation circuits used in ultra-high-frequency (UHF) radio-frequency identification (RFID) transponders. Detailed analysis of the oscillator design, including process and temperature compensation techniques are discussed. The circuit is designed using TSMC 0.18μm standard CMOS process and simulated with Spectre. Simulation results show that, without post-fabrication calibration or off-chip components, less than ±3% frequency variation is obtained from –40 to 85°C in three different process corners. Monte Carlo simulations have also been performed, and demonstrate a 3σ deviation of about 6%. The power for the proposed circuitry is only 1.18µW at 27°C

Problems and Solutions That the Environmental Governance of Our Country Is Facing Under the New Norm

Chinese government has proposed several new ways and demands of establishing and protecting the environment, in order to promote the ecological environment governance, under the leadership of Xi Jinping in the context of better development of all the Chinese people and the whole nation. We point out the difficulties faced, analyze the reasons for that and provide the solutions to it, when our state tried to governance the environment in the characteristics of stages. It provided lots of practical significance while contributing to help develop the environmental governance and the modernization of governance capacity