Single-layer frequency-selective wallpaper for Wi-Fi blocking in the built environment

用于建筑环境中 Wi-Fi 屏蔽的单层频率选择性壁纸

• 批准号: 543411-2019
• 负责人: Markley, Loïc
• 金额: $ 2.33万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=699220
• 关键词: Single; layer; frequency; selective; wallpaper

With the ubiquity of wireless communication in society, we are increasingly reliant on wireless networks to carry out our everyday transactions, many of which involve the transmission of sensitive data. This dependence has resulted in a growing demand for private secure networks as well as connection-free zones. G Group Land Development is a local BC real-estate developer that strives to differentiate itself from other developers by incorporating innovative technologies into their buildings. In furtherance of that goal, they are seeking to integrate Wi-Fi blocking functionality directly into the built environment. With the global market for radio-frequency (RF) shielding valued at $7 billion, a research collaboration between UBC and G Group provides an exciting opportunity to bring this technology to Canadian and worldwide markets. Frequency-selective surfaces (FSS) are metallic patterned surfaces that can filter electromagnetic waves by selectively transmitting, reflecting, or absorbing specific frequency bands. Multi-band FSS can be designed by layering multiple single-band FSS together or by introducing multi-resonant elements in the surface pattern; however, these designs have historically suffered from high design complexity and high cost of manufacturing, which has made integration into the built environment impractical. Through a previous NSERC Engage Grant, the applicant worked with G Group to propose a novel single-layer passive FSS with independently tunable stop bands. In this CRD project, both parties will continue their collaboration and apply the FSS to Wi-Fi blocking in the built environment. Key tasks will include making the location of the stop bands robust to all incoming wave polarizations and incidence angles, adapting the FSS to a wide variety of backings, and developing a custom printing process for G Group to avoid reliance on third-party manufacturers. Achieving these research outcomes is critical to enabling G Group to achieve its objective of incorporating Wi-Fi blocking technology into real estate development through a wholly-Canadian enterprise.

随着无线通信在社会中的普遍存在，我们越来越依赖无线网络来进行日常交易，其中许多交易涉及敏感数据的传输。这种依赖性导致对专用安全网络以及无连接区域的需求不断增长。 G Group Land Development 是一家不列颠哥伦比亚省本地房地产开发商，致力于通过将创新技术融入其建筑中，从其他开发商中脱颖而出。为了实现这一目标，他们正在寻求将 Wi-Fi 阻止功能直接集成到建筑环境中。全球射频 (RF) 屏蔽市场价值 70 亿美元，UBC 和 G Group 之间的研究合作提供了一个令人兴奋的机会，将该技术引入加拿大和全球市场。 频率选择表面（FSS）是金属图案表面，可以通过选择性地传输、反射或吸收特定频段来过滤电磁波。多频段FSS可以通过将多个单频段FSS层叠在一起或在表面图案中引入多谐振元件来设计；然而，这些设计历来都面临着高设计复杂性和高制造成本的问题，这使得集成到建筑环境中变得不切实际。通过之前的 NSERC Engage Grant，申请人与 G Group 合作提出了一种具有独立可调阻带的新型单层无源 FSS。在这个CRD项目中，双方将继续合作，将FSS应用于建筑环境中的Wi-Fi阻塞。主要任务包括使阻带的位置能够适应所有入射波偏振和入射角，使 FSS 适应各种背衬，以及为 G Group 开发定制印刷工艺以避免对第三方制造商的依赖。取得这些研究成果对于 G Group 实现通过加拿大独资企业将 Wi-Fi 屏蔽技术融入房地产开发的目标至关重要。