Equipment for Characterization of Microwave and Millimetre-Wave Electromagnetic Metasurfaces and Metagratings

微波和毫米波电磁超表面和超光栅表征设备

• 批准号: RTI-2020-00522
• 负责人: Hum, Sean
• 金额: $ 10.71万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=693619
• 关键词: Equipment; Characterization; Microwave; Millimetre; Wave

Electromagnetic metasurfaces (EMMSs) encompass a wide range of artificially-engineered structures that can achieve extraordinary manipulation of electromagnetic waves. Applied to radio waves in the microwave and millimetre-wave frequency range, the capabilities of these surfaces can be harnessed to realize new functions and capabilities in antennas and sensing devices used in a wide array of applications including satellite communication, 5G wireless, imaging, and RADAR systems. Researchers at the University of Toronto have pioneered a number of unique EMMS architectures and designs that show significant promise in advancing the capabilities of next-generation wireless and sensing systems, including reflectarrays, transmitarrays, frequency-selective surfaces, impedance surfaces, and metasurfaces/metagratings.******The accurate design of EMMSs depends on accurate characterization of their properties and scattering behaviour. Measurements of these properties require extremely accurate experimental setups, especially as devices migrate to higher frequency bands that many emerging wireless systems, such as satellite and 5G, target. This proposal describes two sets of components that will greatly enhance our capability to carry out accurate characterization of EMMSs. The first system of components implement part of a quasi-optical setup that will allow the fundamental quantities used to characterize EMMSs (e.g. surface polarizabilities) to be accurately measured up to 60 GHz. The second set of components will add to the capabilities of an existing near-field scanning system that will increase its accuracy for measuring large EMMSs from 4-60 GHz. These include calibration horns and mechanical components to make this possible. Both sets of requested components will leverage major investments already made in each respective facility.******The proposed equipment is vital to supporting the experimental efforts of numerous research programs managed by the applicants, many of which interface with industry. As such, the equipment will play a pivotal role in providing useful experimental infrastructure for industrially-sponsored projects, in which physical demonstrations are a key currency in securing continued buy-in from companies as we pass various technology readiness gates with them in developing emerging technology. Importantly, there is substantial training potential for trainees in not only gaining practical skills in the use of state-of-the-art equipment, but also engagement in practical projects with industrial partners that will greatly improve the readiness of highly qualified personnel to join the workforce, be it in industry or academia. Collectively, the proposed equipment will enable deep research impact in a breadth of ongoing activities in the EMMS field at the University of Toronto.**

电磁超颖表面（EMMS）包括各种各样的人工工程结构，可以实现对电磁波的非凡操纵。应用于微波和毫米波频率范围内的无线电波，这些表面的能力可以被利用来实现天线和传感设备的新功能和能力，这些天线和传感设备用于卫星通信、5G无线、成像和雷达系统等广泛应用。多伦多大学的研究人员开创了许多独特的EMMS架构和设计，这些架构和设计在推进下一代无线和传感系统的能力方面表现出了巨大的潜力，包括反射阵列、传输阵列、频率选择表面、阻抗表面和元表面/元聚集。EMMS的精确设计取决于其性质和散射行为的精确表征。这些特性的测量需要非常精确的实验设置，特别是当设备迁移到许多新兴无线系统（如卫星和5G）的更高频段时。该建议描述了两套组件，这将大大提高我们的能力，进行准确的表征EMMS。第一个组件系统实现了准光学设置的一部分，这将允许用于表征EMMS的基本量（例如表面极化率）在高达60 GHz的频率下精确测量。第二组组件将增加现有近场扫描系统的能力，这将提高其测量4-60 GHz大型EMMS的精度。这些包括校准喇叭和机械部件，使这成为可能。这两套要求的组成部分将利用已在各自设施中进行的重大投资。拟议的设备对于支持申请人管理的众多研究项目的实验工作至关重要，其中许多项目与工业界有联系。因此，这些设备将在为工业赞助的项目提供有用的实验基础设施方面发挥关键作用，其中物理演示是确保公司持续购买的关键货币，因为我们与他们一起通过了开发新兴技术的各种技术准备阶段。重要的是，受训人员有很大的培训潜力，不仅可以获得使用最先进设备的实用技能，还可以与工业伙伴一起参与实际项目，这将大大提高高素质人员加入劳动力队伍的准备程度，无论是在工业界还是学术界。总的来说，拟议中的设备将在多伦多大学EMMS领域正在进行的广泛活动中产生深刻的研究影响。