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In this paper a wireless power transmission system is designed and implemented with 0.18μm CMOS technology. A novel structure without rectifier is developed in order to improve the power transmission efficiency. The coupled inductors are a pair of highly optimized 700μm×700μm on-chip inductors, and with the proposed structure, simulation achieves wireless transmitted power of 32mW, while the measurement of test chip shows the achieved transmission power is 22mW.
ASIC (ASICON), 2011 IEEE 9th International Conference on
Date of Conference: 25-28 Oct. 2011