探讨EN 303417 Wireless power transmission systems,using technologies other than radio frequency beam in the(19~21)kHz,(59~61)kHz,(79~90)kHz,(100~300)kHz,(6765~6795)kHz ranges[1]中无线充电设备阻塞测试的环线天线要求,并...探讨EN 303417 Wireless power transmission systems,using technologies other than radio frequency beam in the(19~21)kHz,(59~61)kHz,(79~90)kHz,(100~300)kHz,(6765~6795)kHz ranges[1]中无线充电设备阻塞测试的环线天线要求,并根据实验室检测实践经验,设计一款满足标准需求且可以提升检测准确性、重复性、效率的环线天线。经实际应用和数据分析,该环形天线性能与理论预期相近,满足设计目的。展开更多
A new BPSK demodulator was presented.By using a clock multiplier with very simple circuit structure to replace the analog multiplier in the traditional BPSK demodulator,the circuit structure of the demodulator became ...A new BPSK demodulator was presented.By using a clock multiplier with very simple circuit structure to replace the analog multiplier in the traditional BPSK demodulator,the circuit structure of the demodulator became simpler and hence its power consumption became lower.Simpler structure and lower power will make the designed demodulator more suitable for use in an internal single chip design for a wireless implantable neural recording system.The proposed BPSK demodulator was implemented by Global Foundries 0.35μm CMOS technology with a 3.3 V power supply.The designed chip area is only 0.07 mm;and the power consumption is 0.5 mW.The test results show that it can work correctly.展开更多
文摘探讨EN 303417 Wireless power transmission systems,using technologies other than radio frequency beam in the(19~21)kHz,(59~61)kHz,(79~90)kHz,(100~300)kHz,(6765~6795)kHz ranges[1]中无线充电设备阻塞测试的环线天线要求,并根据实验室检测实践经验,设计一款满足标准需求且可以提升检测准确性、重复性、效率的环线天线。经实际应用和数据分析,该环形天线性能与理论预期相近,满足设计目的。
基金Project supported by the National Natural Science Foundation of China(Nos.60976026,61076023)the National Basic Research Program of China(No.2011CB933203)the Fundamental Research Funds for the Central Universities,SCUT(No.2009ZM0196)
文摘A new BPSK demodulator was presented.By using a clock multiplier with very simple circuit structure to replace the analog multiplier in the traditional BPSK demodulator,the circuit structure of the demodulator became simpler and hence its power consumption became lower.Simpler structure and lower power will make the designed demodulator more suitable for use in an internal single chip design for a wireless implantable neural recording system.The proposed BPSK demodulator was implemented by Global Foundries 0.35μm CMOS technology with a 3.3 V power supply.The designed chip area is only 0.07 mm;and the power consumption is 0.5 mW.The test results show that it can work correctly.
