Design and implementation of 8X8 wideband and single-layer Butler matrix for multi-beam antenna arrays

对于未来的多波束成形天线阵列应用，我们的工业合作伙伴Kaytus Technologies Inc. 有兴趣设计一个新的巴特勒矩阵，将被用作波束形成器。这种波束形成器将是 Kaytus Technologies的无线通信波束成形天线阵列系统中使用的。在这 从这个角度来看，我们建议在这个项目中设计和开发一个紧凑的印刷8X8宽带和单层 巴特勒矩阵的多波束天线阵列工作在5.15至5.85 GHz的频带。在这个项目中， Kaytus Technologies Inc.将在整个项目中为研究人员提供研究支持和指导。 此外，该项目将利用加拿大资助的先进射频实验室设施， 创新基金会（CFI）和魁北克政府。 要求NSERC提供的支持将使拟议的团队能够设计和开发紧凑且 用于未来波束形成天线阵列系统的单层Butler矩阵。Butler矩阵设计应 结构紧凑，仅使用单层衬底并提供大带宽。有了这些特点， Butler矩阵可用于波束形成天线阵列系统中，以覆盖 频段为5.15 ~ 5.85 GHz。 为了科普这一挑战，拟议的研究将集中在三个部分：（i）密集的文献综述 将进行广泛的巴特勒矩阵，以确定潜在的候选人;（二）设计和 分析将进行开发紧凑的宽带巴特勒矩阵，和（iii）原型和 巴特勒矩阵的特征。开发的技术将有利于Kaytus Technologies Inc.和加拿大航天工业，有效地促进了 新的宽带巴特勒矩阵波束形成天线阵列的应用。

For future multiple-beam-forming antenna array applications, our industrial partner, Kaytus Technologies Inc., is interested in designing a new Butler matrix that will be used as a beamformer. Such beam-former will be employed in Kaytus Technologies' beam-forming antenna array systems for wireless communications. In this perspective, we propose in this project to design and develop a compact printed 8X8 wideband and single-layer Butler matrix for multi-beam antenna arrays operating in the band from 5.15 to 5.85 GHz. In this project, Kaytus Technologies Inc. will provide research support and guidance to the researcher throughout the project. Furthermore, the project will capitalize on the advanced RF laboratory facility funded by the Canada Foundation for Innovation (CFI) and the Quebec government. The requested support from NSERC would allow the proposed team to design and develop compact and single-layer Butler matrix for future beam-forming antenna array systems. The Butler matrix design should be compact, use only a single layer substrate and provide a large bandwidth. With these features, the proposed Butler matrix can be used in beam-forming antenna array systems to cover wireless communications in the band from 5.15 to 5.85 GHz. To cope with this challenge, the proposed research will focus on three parts: (i) an intensive literature review will be carried out on broad Butler matrices in order to identify the potential candidates; (ii) a design and analysis will be carried out to develop compact wide bandwidth Butler matrix, and (iii) prototyping and characterization of the proposed Butler matrix. The developed technology will be beneficial to Kaytus Technologies Inc. and the Canadian space industry in general by efficiently contributing in the development of new wide bandwidth Butler matrices for beam-forming antenna array applications.