Design and Optimization Research of Impulse Radiating Focusing Antenna Used in Bioelectric Applications
Yao Chenguo1, Long Zaiquan1, 2, Sun Caixin1, Mi Yan1, Li Chengxiang1
1. State Key Laboratory of Power Transmission Equipment and System Safety and New Technology Chongqing University Chongqing 400044 China 2. Sichuan Electric Power Designing and Consulting Co. Ltd Chengdu 610016 China
Abstract：Picosecond pulses is much smaller compared to the membrane and nuclear membrane charging time of biological tissue (tens of nanoseconds and a few hundred nanoseconds), and it owns a rich spectrum of ultra wide band (almost from DC to GHz), which indicates high temporal resolution and spatial resolution. A wideband impulse radiation antenna (IRA) system was developed, which was composed of a cone structure with TEM coaxial feed and a prolate spheroidal reflector. It can focus the electromagnetic energy on a special target effectively. The E-field distributions of four kinds of models under different conditions were simulated, which could provide some optimal choices for the antenna design. The results shows that gain and field pattern of the antenna are stable, and voltage standing wave ratio is less than 2. At the same time, the pulse of focusing region maintains the input impulse characteristics, while the full width at high maximum of the electric field distribution generated in x-axis direction is less than 20mm, with y-axis and z axis 10mm.
姚陈果, 龙再全, 孙才新, 米彦, 李成祥. 生物医用冲激脉冲辐射聚焦天线的设计与优化[J]. 电工技术学报, 2011, 26(2): 21-26.
Yao Chenguo, Long Zaiquan, Sun Caixin, Mi Yan, Li Chengxiang. Design and Optimization Research of Impulse Radiating Focusing Antenna Used in Bioelectric Applications. Transactions of China Electrotechnical Society, 2011, 26(2): 21-26.
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2011, Vol. 26 
