Design Algorithms for Mulifunction Reconfigurable Antenna Arrays

9974113Volakis本提案的目标是发展和推广均质化设计方法(HDM)在共形多层天线阵列设计中的应用，重点是自适应/可重构器件。我们将通过召集来自电气和机械工程的研究人员团队来实现这一目标。来自机械工程界的提倡者已经在开发设计方法并将其过渡到汽车行业方面发挥了关键作用，在汽车行业，HDM被用于在满足最小重量和预先指定的热和负载要求的情况下实现最佳汽车设计。HDM被认为是一种突破性的设计方法，它的应用已经渗透到汽车制造的方方面面。基本上，HDM提供了设计具有预先指定的热和结构/机械性能的材料的能力，这是应用力学中的一个长期的“梦想”。它是机械设计中一种突破性的设计方法，对汽车设计产生了直接而重大的影响。同样，在电磁学和天线设计中，我们预计拟议的设计技术不会是对现有设计的演变。相反，新的设计可以是任何可能的形状和组成，同时仍然满足带宽、尺寸、耦合、增益、图案和其他常用的性能要求。天线的可重构方面可以很容易地作为设计过程的一部分来考虑。HDM对新应用领域的扩展和影响预计也将同样有效。到目前为止，这种非常成功的均匀化设计方法还没有被考虑用于电磁应用。然而，它肯定有潜力通过跟踪多层和多单元天线结构的逐个单元和逐层设计来产生新的高性能天线的设计。将HDM引入电磁学(特别是天线设计)是一项及时的努力，原因有两个。首先，在所有类型的无线系统中天线的激增和将天线阵列集成到单个多功能孔径中向我们提出了新的挑战，即在高度复杂的系统存在的情况下保持可接受的性能水平的天线阵列设计。基于混合有限元技术的快速和高适应性算法的可用性是追求实用设计算法的第二个原因。虽然这一建议主要针对天线设计，但它的成功也将影响到所有其他电磁应用的设计。它还将允许开发结合了机械、电气和其他工程规范的约束的毛皮设计算法。

9974113VolakisThe objective of this proposal is to develop and extend the application of the Homogenization Design Method (HDM) to conformal multilayered antenna array design with emphasis on adaptive/reconfigurable devices. We will achieve this by bringing together a team of researchers from electrical and mechanical engineering. The proposers from the mechanical engineering community have already played a key role in developing and transitioning design methodologies to the automotive industry where HDM was used to achieve optimal automobile designs subject to minimum weight and prespecified thermal and loading requirements. HDM is considered a breakthrough design methodology and its application has permeated all aspects of automobile manufacturing. Basically, HDM provided the capability to design materials with prespecified thermal and structural/mechanical properties, a long standing "dream" in applied mechanics. It was a breakthrough design methodology in mechanical design and had an immediate and significant impact on automobile design. Similarly, in electromagnetics and antenna design in particular, we do not expect that the proposed design technique will be an evolution to existing designs. Instead, the new designs may be of any possible shape and composition while still satisfying bandwidth, size, coupling, gain, pattern and other commonly used performance requirements. Reconfigurable aspects of the antenna can be readily considered as part of the design process.The extension and impact of HDM to new application areas is expected to be equally effective. So far, this highly successful homogenization design method has not been considered for electromagnetic applications. Nevertheless, it certainly has the potential to generate designs for new high performance antennas by following a cell by cell and layer by layer design of the multilayered and multicell antenna structures. The introduction of HDM to electromagnetics (and antenna design in particular) is a timely endeavor for two reasons. First, antenna proliferation in all types of wireless systems and integration of antenna arrays into a single multifunction aperture present us with new challenges for antenna array design which maintain acceptable levels of performance in the presence of highly complex systems. The availability of fast and highly adaptable algorithms based on hybrid finite element method techniques is the second reason for pursuing practical design algorithms.Although this proposal is primarily aimed at antenna design, its success will also impact designs for all other electromagnetic applications. It will also allow for the development of furore design algorithms which combines constraints from mechanical, electrical and other engineering specifications.