Ningye He
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View article: Design of a Low Power and Wide Frequency Range Ring VCO
Design of a Low Power and Wide Frequency Range Ring VCO Open
This paper proposes a low-power, wide frequency range ring VCO circuit structure based on the application of switch power supply modulation technology. Circuit simulation is completed based on CMSC 180nm BCD process. Simulation results sho…
View article: Design of a 5MHz half-bridge gate driver for GaN HEMTs with adaptive output current
Design of a 5MHz half-bridge gate driver for GaN HEMTs with adaptive output current Open
In this paper, a half-bridge gate driver with adaptive output current for GaN HEMTs is introduced. The output drive current of the driver is adapted to the load of GaN HEMTs, by adjusting the W/L size of drive transistors. The rise time of…
View article: A 20MHz 4A gate driver with 5.5 to 24V output drive voltage for wide bandgap FETs
A 20MHz 4A gate driver with 5.5 to 24V output drive voltage for wide bandgap FETs Open
A high-speed gate driver circuit which can meet both GaN FET and SiC MOSFET is presented. High-speed output drive circuit with wide output drive voltage is introduced in the driver circuit to improve speed and efficiency. By using high-spe…
View article: Multi-Band Analogue Electromagnetically Induced Transparency in DoubleTuned Metamaterials
Multi-Band Analogue Electromagnetically Induced Transparency in DoubleTuned Metamaterials Open
A multi-band analogue electromagnetically induced transparency (A-EIT) metamaterial is proposed. The structure is composed of liquid crystal (LC) layer and a graphene strips layer on both sides of silicon dioxide. The transmission spectrum…
View article: Wideband Reflector and Analogue Electromagnetically Induced Reflection in Metamaterials
Wideband Reflector and Analogue Electromagnetically Induced Reflection in Metamaterials Open
Metamaterials are highly demanded for advanced applications in absorbers, sensors, and filters. However, metamaterial reflectors, especially broadband reflectors, remain challenging. In this paper, we theoretically investigate a wideband m…