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.**

电磁超表面（EMMS）包含各种人工设计的结构，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时，可以利用这些表面的功能来实现天线和传感设备的新功能和能力，这些设备可用于卫星通信、5G 无线、成像和通信等广泛应用。雷达系统。多伦多大学的研究人员开创了许多独特的 EMMS 架构和设计，这些架构和设计在提高下一代无线和传感系统的功能方面显示出巨大的前景，包括反射阵列、发射阵列、频率选择表面、阻抗表面和超表面/元光栅.*****EMMS 的准确设计取决于对其特性和散射行为的准确表征。这些属性的测量需要极其精确的实验装置，特别是当设备迁移到许多新兴无线系统（例如卫星和 5G）所瞄准的更高频段时。该提案描述了两组组件，这将大大增强我们对 EMMS 进行准确表征的能力。第一个组件系统实现了准光学装置的一部分，该装置将允许在高达 60 GHz 的频率下精确测量用于表征 EMMS 的基本量（例如表面极化率）。第二组组件将增强现有近场扫描系统的功能，从而提高测量 4-60 GHz 大型 EMMS 的精度。其中包括校准喇叭和机械部件，使这成为可能。两组所需的组件都将利用各自设施中已进行的重大投资。******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，其中许多研究项目与工业界有联系。因此，这些设备将在为工业资助的项目提供有用的实验基础设施方面发挥关键作用，在这些项目中，当我们与公司一起通过各种技术准备关卡来开发新兴技术时，物理演示是确保公司持续支持的关键手段。 。重要的是，学员拥有巨大的培训潜力，不仅可以获得使用最先进设备的实用技能，而且还可以与工业合作伙伴一起参与实际项目，这将大大提高高素质人才加入该行业的准备程度。劳动力，无论是工业界还是学术界。总的来说，拟议的设备将对多伦多大学 EMMS 领域正在进行的一系列活动产生深远的研究影响。**