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Nader Bagherzadeh博士和埃及开罗电子研究所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之间的相互作用。 拟议活动的智力价值：这项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，并模拟电磁辐射对人体组织的潜在危害影响，以及人体对天线性能的失真影响。这项研究的结果可能是一个并行实施的时域有限差分（FDTD）方法，以确定特定的吸收率（SAR）值在线，为了让技术用户更清楚地了解电磁辐射是如何被他们的身体吸收和由此产生的安全问题（如果有的话）。 目的是准确确定SAR值是否符合设定的安全标准。 由于其优于其他全波模拟方法，FDTD一直是此类模拟的首选方法。 时域有限差分法（FDTD）是模拟多种不同性质的非均匀材料问题的最佳方法，如人体头/体模型。 最终的C++代码将被托管在UCI网站和ERI网站上的镜像，以供任何人随时随地确定SAR值，天线的安全位移以及天线性能上的失真影响。拟议活动的更广泛影响：随着无线通信技术的爆炸性增长，人们对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感到担忧。这包括对涉及无线电通信设备安装和维护的大量工人的关注，以及对无线手持设备的用户数量的增加的关注。该研究将有助于我们理解人体与移动的无线设备之间的相互作用。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所揭示的天线特性的失真效应应该有助于天线工程师修改设计。研究结果也可能会启动一些研究途径，以减轻电磁辐射的危害影响。 该项目得到了美国-埃及联合基金方案的支持，该方案向两国的科学家和工程师提供赠款，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.