Integrated Microwave and Millimeter-Wave Phase Change Material Devices

集成微波和毫米波相变材料器件

• 批准号: RGPIN-2022-03949
• 负责人: Mansour, Raafat
• 金额: $ 4.66万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=751626
• 关键词: Integrated; Microwave; Millimeter; Wave; Phase

Phase Change Materials (PCM) have been widely used in optical and non-volatile memory devices applications. Over the past recent years, there have been interest in exploiting the PCM technology, especially germanium telluride (GeTe) and its alloys, for Radio Frequency (RF) switch applications. The principle of operation of RF PCM-based devices is based on the ability of the material to transform from a high-resistivity sate (amorphous phase) to a low-resistivity state (crystalline phase) and vice versa with the application of short duration pulses that generate heat to switch between the two states. In addition to miniaturization, PCM GeTe based switches offer latching functionality and are amenable to integration with other microwave and millimeter-wave circuits such as reconfigurable filters, phase shifters and antenna matching networks. The research program will focus on monolithic integration of PCM technology with piezoelectric technology to develop reconfigurable acoustic filters for use in low frequency applications (1-6 GHz) applications. It will also focus on the integration of PCM technology with silicon micromachining technology to develop low-loss reconfigurable millimeter-wave components (60 GHz and up) for use in emerging wireless communication systems. This research program will contribute to the training of students at the PhD and Master levels with the skills to compete globally in the fields of RF engineering. It will also draw tremendous benefits to Canadian industries involved in wireless technologies.

相变材料（PCM）已广泛应用于光学和非易失性存储设备应用中。近年来，人们对开发 PCM 技术，尤其是碲化锗 (GeTe) 及其合金用于射频 (RF) 开关应用产生了兴趣。基于 RF PCM 的设备的工作原理基于材料通过应用短持续时间脉冲从高电阻率状态（非晶相）转变为低电阻率状态（晶相）的能力，反之亦然产生热量以在两种状态之间切换。除了小型化之外，基于 PCM GeTe 的开关还提供锁存功能，并且适合与其他微波和毫米波电路集成，例如可重构滤波器、移相器和天线匹配网络。该研究计划将重点关注 PCM 技术与压电技术的单片集成，以开发用于低频应用 (1-6 GHz) 的可重构声学滤波器。它还将专注于PCM技术与硅微加工技术的集成，以开发用于新兴无线通信系统的低损耗可重构毫米波元件（60 GHz及以上）。该研究项目将有助于培养博士和硕士水平的学生，使其具备在射频工程领域进行全球竞争的技能。它还将为加拿大无线技术行业带来巨大利益。