Electromagnetic Energy Harvesting in a Head-mountable DBS Device Using a Circular PIFA
A circular planar inverted-F antenna (PIFA) is designed and simulated at the industrial,scientific,and medical (ISM) band of 915 MHz for energy harvesting in a headmountable deep brain stimulation device.Moreover,a rectifier is designed,and also the interaction of the PIFA with a rat head model is investigated.In the proposed PIFA,the top radiating layer is meandered,and a substrate of FR-4 is used.The radius and the height of the antenna are 10 mm and 1.8 mm,respectively.The bottom conductive layer works as a ground plate,and a superstrate of polyethylene reduces the electromagnetic penetration into the rat head.The resonance frequency of the designed antenna is 915 MHz with a bandwidth of 18 MHz at the return loss of ?10 dB in free space.The antenna parameters (e.g.reflection coefficient,gain,radiation efficiency),electric field distribution,and SAR value are evaluated within a seven-layer rat head model by using the finite difference time domain EM simulation software XFdtd.The interactions of the antenna and the rat head model are studied in both functional and biological aspects.
PIFA DBS rectenna SAR electromagnetic energy harvesting
Md Kamal Hosain Abbas Z. Kouzani
School of Engineering Deakin University Geelong, Victoria 3216, Australia
国际会议
2013 ICME International Conference on Complex Medical Engineering(2013 ICME复合医学工程国际会议)
北京
英文
541-546
2013-05-25（万方平台首次上网日期，不代表论文的发表时间）