Intelligent Modeling and Design of Medium to Large Scale Microwave and Millimeter-Wave Circuits for Communication Systems

极高的数据速率等需求正在推动新技术向更高端的微波频谱和毫米波频谱发展，从而带来新的挑战。同时，如此高频率的设计和优化依赖于高效的计算机辅助设计(CAD)技术，尤其是对于大中型设计问题。 该研究计划的目标是开发中大规模微波和毫米波电路和系统的智能建模技术和优化方法，并将这些CAD技术应用于为下一代卫星和无线通信系统开发创新和高性能的电路。该研究计划将集中在以下几个方面。(1)发展有效的综合方法和高效、准确的宽带模型，以适应卫星通信中新的复接网络结构的应用。开发的CAD方法将应用于中到大规模的设计，包括开发新的可调多路复用器。(2)开发用于天线阵列的智能建模技术，允许迭代设计优化。这些模型将应用于高效中大型毫米波天线阵的开发，以及阵列的可重构性研究，探索微电子机械系统(MEMS)技术和先进材料，如碳纳米管(CNT)。在本研究计划中，建模技术建立在全波仿真、分布式电路模型和/或神经网络的有效集成之上，以在较宽的频率范围内准确而快速地对电路行为进行建模，并进一步实现高效率的优化。每个电路/系统都有自己的特点和设计挑战。考虑到电路的具体特点和设计目标，不同的方法，如人工神经网络、机器学习和基于代理的优化技术将有效地结合在一起。 本研究计划中重点研究的微波和毫米波电路和系统在空间和地面通信系统以及成像系统、传感器和汽车雷达中有重要应用。所提出的研究计划有望在计算机辅助设计领域做出重大贡献，并在理论研究和实际应用方面对先进和创新的电路和系统的发展做出重大贡献。研究成果可以通过开发新技术和提高设计能力来增强加拿大高科技产业在全球市场上的竞争力。此外，HQP获得的专业知识对加拿大的工业，特别是信息和通信技术部门很有价值。

Demands, such as extremely high data rates, are driving new technology development toward the higher end of microwave spectrum and the millimeter-wave spectrum, resulting in new challenges. At the same time, design and optimization at such high frequency rely on efficient computer aided design (CAD) techniques, which is especially true for medium and large scale design problems. The objectives of the proposed research program are to develop intelligent modeling techniques and optimization methods for medium to large scale microwave and millimeter-wave circuits and systems, and to apply these CAD techniques to the development of innovative and high performance circuits for next generation satellite and wireless communication systems. The research program will focus on the following areas. (1) Effective synthesis method and efficient and accurate wideband models will be developed for new multiplexing network configurations for applications in satellite communications. The developed CAD methods will be applied to medium to large-scale designs, including the development of new tunable multiplexers. (2) Intelligent modeling techniques will be developed for antenna arrays, allowing iterative design optimizations. The models will be applied to the development of highly efficient medium to large-scale millimeter-wave antenna arrays, and to the investigations of reconfigurability of the arrays, exploring microelectromechanical systems (MEMS) technology and advanced material, such as carbon-nanotube (CNT). In this research program, the modeling techniques build on efficient integrations of full wave simulations, distributed circuit models and/or neural networks, to accurately and quickly model the circuit behavior over a wide frequency range, and to further enable optimization with high efficiency. Each circuit/system has its own characteristics and design challenge. Different methods, such as artificial neural network, machine learning, and surrogate-based optimization techniques, will be effectively combined taking into account the specific characteristics of the circuits and design goals. The microwave and mm-wave circuits and systems focused on in this research program find important applications in space and ground based communications systems, as well as in imaging systems, sensors and automotive radar. The proposed research program is expected to make significant contributions in the field of CAD, and to the development of advanced and innovative circuits and systems, in both theoretical research and practical applications. The outcomes of the research can enhance competitiveness of the Canada's high-tech industry in the global market through development of new technologies and improvement of design capabilities. Furthermore, the expertise gained by HQP is valuable to Canadian industries, especially the information and communication technology sector.