Miniaturized electromagnetic band gap structures for wireless applications

目标是开发小型化和宽带电磁带隙（EBG）结构，用于两个频率范围：微波范围的较低部分和THz范围。在较低微波范围内，两类应用将是针对的：高速封装和结构中的EMI滤波和开关噪声抑制，以及低剖面天线和高增益天线阵列的设计。目前，对于高速电路板和封装中的开关噪声和杂散传播问题还没有有效的解决方案。基于我们以前在印刷电路板中的噪声抑制方面的工作，我们期望这里提出的小型化结构在芯片封装和越来越多地用于高密度应用的小型电路板中提供有效的抑制。在CNAS中，EBG结构已被证明提供增强的性能，从而导致更高的增益和效率。然而，由于对小型化和宽带天线的驱动一直是无情的，为了使EBG增强小型天线的性能，EBG必须小型化以在天线介质中产生足够的均匀性。在早期的工作中，我们已经证明了EBG可以减少天线阵列应用中相邻平面天线之间的互耦合。小型化EBG将有可能减少相邻天线之间的距离，从而实现更高的天线密度，从而提高天线阵列的单位面积增益。宽带EBG结构将基于低色散平面（金属化）和非平面（光子晶体）非谐振EBG的概念而发展。近年来，由于太赫兹技术在传感器相关技术中的未开发潜力，其发展迅速。在这种制度下，纳米技术与先进材料的结合将是至关重要的，在实现谐振器的可调电容和电感特性。我们的研究重点将是开发有效的计算工具来模拟新型光子带隙晶体和结构。

The objective is to develop miniaturized and wideband Electromagnetic Band Gap (EBG) structures for applications in two frequency regimes: The lower portion of the microwave regime and the THz regime.In the lower microwave regime, two classes of applications will be targeted: EMI filtering and switching noise suppression in high-speed packages and structures, and the design of low-profile antenna and high-gain antenna arrays. Presently there is no effective solution for the problem of switching noise and spurious propagation in high-speed boards and packages. Based on our previous work on noise mitigation in printed circuit boards, we expect the miniaturized structures proposed here to provide effective suppression in chip packages and for small circuit boards that are increasingly used for higher-density applications. In Antennas, EBG structures have proven to provide enhanced performance leading to higher gain and efficiency. However, since the drive for miniaturized and wideband antennas have been relentless, for EBGs to enhance the performance of small antennas, EBGs must be miniaturized to create sufficient homogeneity in the antenna medium. In earlier works, we have demonstrated that EBGs can decrease mutual coupling between adjacent planar antennas in antenna array applications. Miniaturized EBGs will have the potential to decrease the distance between adjacent antennas and thus achieve higher antenna density leading to higher antenna array gain per unit area.For miniaturization, we will use high-k materials. Wideband EBG structures will be developed based on the concept of low-dispersion planar (metallization) and non-planar (photonic crystals) non-resonating EBGs.Recent years have witnessed a dramatic increase in the THz technology due to its unexplored potential in sensor-related technologies. In such regimes, nanotechnology in conjunction with advanced materials will be critical in achieving resonators with tunable capacitive and inductive properties. Our research thrust will be on developing effective computational tools to model novel photonic band gap crystals and structures.