Development of FDTD Accelerator for 3D Mutual Interaction Between Human body and Radiation From Wireless Devices

0507926 Bagherzadeh描述：该项目支持加州大学欧文分校电气工程和计算机科学系的Nader Bagherzadeh博士和埃及开罗电子研究所的Hesham ElDeeb博士的合作研究。他们计划研究人体与无线电话等电磁辐射的相互作用。拟议活动的智力优势：本研究将寻求有效的技术来模拟人体与电磁辐射之间的相互作用，模拟电磁辐射对人体组织的潜在危险影响，以及人体对天线性能的失真效应。这项研究的结果可能是并行实施时域有限差分(FDTD)方法，在线确定特定吸收率(SAR)值，以便让技术用户更好地了解他们的身体如何吸收电磁辐射以及由此产生的安全问题(如果有的话)。其目的是准确地确定SAR值是否符合设定的安全标准。到目前为止，FDTD一直是此类模拟的首选方法，因为它比其他全波模拟方法更具优势。FDTD是模拟许多不同性质的不同非均匀材料问题的最佳方法，如在人体头部/身体模型中。最终的C++代码将托管在UCI网站和ERI网站上的镜像上，供任何人随时随地使用，以确定SAR值、天线的安全位移以及对天线性能的失真影响。拟议活动的广泛影响：随着无线通信技术的爆炸性增长，人们一直担心电磁辐射与人体组织相互作用的安全方面和潜在的危险影响。这包括对从事无线电通信设备安装和维护的大批工人的关切，以及对手持无线设备用户数量不断增加的关切。这项研究将有助于我们理解人体与移动无线设备之间的相互作用。这项研究工作可能会对常用无线通信技术的不同方面产生影响。例如，在本研究过程中开发的工具发现的对天线特性的失真影响应该有助于天线工程师修改设计。这一研究成果还可能启动一些研究途径，以缓解电磁辐射的有害影响。该项目得到了美国-埃及联合基金计划的支持，该计划为两国的科学家和工程师提供资助，以开展这些合作活动。

0507926 BagherzadehDescription: This project supports collaborative research by Dr. Nader Bagherzadeh, Department of Electrical Engineering and Computer Science, University of California, Irvine and Dr. Hesham Eldeeb, Electronic Research Institute, Cairo Egypt. They plan to study the mutual interaction between human body and electromagnetic radiation such as wireless phones. Intellectual merit of the proposed activity: This research will seek efficient technique to simulate mutual interaction between the human body and electromagnetic radiation, and to simulate potential hazardous effects of electromagnetic radiation on human tissues, and on the other hand distortion effects of human body on antenna performance as well. The outcome of this research could be a parallel implementation of the finite difference time domain (FDTD) method to determine specific absorption rate (SAR) values on-line, in order to let the technology users be more aware of how electromagnetic radiation is absorbed by their bodies and the resulting safety concerns (if any). The objective is to accurately determine the compliance of SAR values with set safety standards. FDTD has been by far the method of choice for such simulations due to its advantages over other methods of full wave simulations. FDTD is the optimum method simulating problems with a lot of different inhomogeneous materials with different properties as that in human head/body phantoms. The final C++ code will be hosted on the UCI web site and mirror on ERI web site to be available to any one any time any where to determine the SAR values, safety displacements from antennas and also the distortion effects on antenna performance.Broader impacts of the proposed activity:With the explosive growth of the wireless communication technology there have been concerns about the safety aspects and the potential hazardous effects associated with electromagnetic radiation interaction with human tissues. This includes concern for the large class of workers involved in radio communication apparatus installation and maintenance and also to the increasing number of users of wireless handheld devices. This research would be beneficial for our understanding of the interaction between human body and a mobile wireless device. The research work could have influence on different aspects of commonly used wireless communication technology. For example the distortion effects on antenna characteristics uncovered by the tool to be developed in the course of this research should be a help to antenna engineers to revise the design. The research outcome might also be able to initiate some research avenues to relax hazardous effects of electromagnetic radiation. This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.