Focusing of Picosecond Pulsed Electric Fields in Human Brain Model with Impulse Radiating Antenna
Guo Fei1,2， Li Chengxiang2， Tang Xianlun1， Chen Gonggui1 ，Yao Chenguo2
1.College of Automation of Chongqing University of Posts and TelecommunicationsChongqing 400065 China 2.State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400030 China
Abstract：A prolate-spheroidal reflector antenna model and a dielectric lens model are constructed with the 3D electromagnetic simulation software of CST Microwave Studio.The focusing properties of the picosecond pulsed electric field (psPEF) caused by the impulse radiating antenna (IRA) in the human brain model are then studied.The simulation results indicate that:The electric field at the second focus F2 keeps the time-domain characteristics of the input pulse;The psPEF can penetrate into the brain at a depth of 8 cm where the smallest focal spot is created;The focal size is 1 cm×2 cm×1 cm with non-lossy dielectric lens or without dielectric lens,and the focal size is less than 1 cm×1 cm×1 cm with the help of lossy dielectric lens.The simulation results demonstrate that effective focusing of the psPEF in deep brain can be obtained with the combination of the lossy dielectric lens and a single IRA.
郭飞,李成祥,唐贤伦,陈功贵,姚陈果. 冲激辐射天线实现皮秒脉冲电场在 人体大脑模型中聚焦的研究[J]. 电工技术学报, 2016, 31(3): 195-201.
Guo Fei， Li Chengxiang， Tang Xianlun， Chen Gonggui ，Yao Chenguo. Focusing of Picosecond Pulsed Electric Fields in Human Brain Model with Impulse Radiating Antenna. Transactions of China Electrotechnical Society, 2016, 31(3): 195-201.
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2016, Vol. 31 
