U.S.-Egypt Cooperative Research: Miniaturization for Broadband Chip Size Antennas Using EBG Techniques for Wireless Communications and Biomedical Applications

项目描述：该项目支持夏威夷檀香山大学电气工程系Magdy Iskander博士与埃及开罗电子研究所Esmat Abdalla博士的合作研究。他们计划利用电磁带隙（EBG）技术研究用于无线通信和生物医学应用的宽带芯片尺寸天线的小型化。尽管如今的紧凑型天线很吸引人，但使能技术在平衡设计/特性方程方面仍然存在一些障碍。需求一方面是宽带宽、多频带/多功能运行、高增益和高效率、阵列情况下低互耦合或可忽略的全向辐射方向图；另一方面是非常小的尺寸、低比吸收率、低外形、低成本和易于在很小的空间内集成。天线是将无线微系统完全集成到单个芯片中的关键元件。这种集成需要在与集成电路集成电路制造兼容的低损耗衬底材料上安装小型天线。此外，由于最近无线系统的频率增加，所提供的带宽对于数据通信和医疗传感器应用都是可以接受的。由于整个通信世界的趋势是无线化，因此对越来越多的应用有很大的需求，而任何无线系统的眼睛都是它的发射/接收天线。EBG结构用于防止某些工作模式，并进行谐波控制。这些技术可以提高天线系统的可用性。近年来，基于EBG结构的微机电系统的设计与仿真越来越受到人们的关注。最初的概念只在有限的制造设备上得到了验证。在这一领域需要进行研究。该项目是研究和开发EBG结构/地平面如何用于优化MEMS天线性能的一个步骤。所研究的天线将小型化，具有宽带特性，适合无线和医疗传感器应用中的多频段/多功能操作。智力影响：用于先进无线通信的微型高性能天线系统的设计和特性。混合设计，利用MEMS制造和EBG结构全部集成到单个芯片中，将导致小型化集成和低轮廓天线，具有多频段/多功能操作的宽带特性。更广泛的影响：在先进多功能无线系统中的潜在应用。该项目得到了美国-埃及联合基金项目的支持，该项目向两国的科学家和工程师提供资助，以开展这些合作活动。

0707216IskanderDescription: This project supports collaborative research by Dr. Magdy Iskander, Department of Electrical Engineering, University of Hawaii, Honolulu, Hawaii in collaboration with Dr. Esmat Abdalla, Electronics Research Institute, Cairo, Egypt. They plan to study the Miniaturization for broadband Chip Size Antennas using Electromagnetic Band Gap (EBG) techniques for Wireless Communications and Biomedical Applications. As intriguing as compact antennas are today, the enabling technology still has some hurdles in the balancing of the design/characteristics equation. The needs are on one hand: wide bandwidth, multi-band /multi-function operation, high gain and efficiency, omni directional radiation pattern with low or negligible mutual coupling in array case, and on the other hand: very small size, low specific absorption rate, low profile, low cost, and easy integration in very small space. The antenna is the key element in order to fully integrate a wireless microsystem into a single chip. The integration requires a small antenna on a low loss substrate material compatible with integrated circuits IC fabrication. Moreover, due to the frequency increase in recent wireless systems, the provided bandwidth becomes acceptable for both data communications and medical sensor applications. There is a great demand for increasing number of applications since the trend in the entire communication world is to be wireless, and the eyes of any wireless system are its transmitting/receiving antenna. EBG structures are used to prevent some operating modes and make harmonic control. These techniques can increase the usability of antenna systems. The design and simulation of the MEMS with EBG structures have recently attracted more attention. Initial concepts only have been proven with limited fabricated devices. Research is needed to contribute in this field. This project is a step to investigate and develop how an EBG structure/ground plane can be used to optimize the MEMS antenna performance. The investigated antenna will be miniaturized with broadband characteristics to be suitable for multi-band/ multi-function operation in wireless and medical sensors' applications.Intellectual impact: The design and characterization of miniature high performance antenna systems for advanced wireless communications. The hybridized designs, utilizing MEMS fabrication and EBG structures all integrated into a single chip, will lead to miniaturized integrated and low profile antennas that exhibit broadband characteristics for multi-band/multi-function operation. Broader impact: Potential application in advanced multifunction wireless systems. Significant educational benefits to the graduate student who will be working on her PhDThis 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.