Liquid Crystal Signal Processing Devices for Microwave and Millimeter Wave Operation

用于微波和毫米波操作的液晶信号处理器件

• 批准号: 1102332
• 负责人: Anatoliy Glushchenko
• 金额: $ 29.99万
• 依托单位: University of Colorado at Colorado Springs
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-04-15 至 2014-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1102332&HistoricalAwards=false
• 关键词: Liquid; Crystal; Signal; Processing; Devices

AbstractThis project will address the need for microwave and millimeter wave signal processing devices which operate in the 10 GHz to 100 GHz range and above using liquid crystal based phase shifters. Current prototype devices show that liquid crystals are promising materials for signal processing over a wide frequency range. Objective1) Simplification of the current device structures to reduce processing steps.2) Reduction of losses in liquid crystal devices3) Identification of liquid crystals with the best performance in the microwave and creation of new liquid crystals materials by doping with high dielectric nanoparticles or ferroelectric nanoparticles.Intellectual MeritThe project will result in devices with several important advantages: 1) they will provide a tunable true-time delay or a large tunable phase shift, 2) the devices will require almost no power consumption, 3) there is a low loss tangent over a wide frequency range, 4) the devices will be small and can be integrated into an on-wafer system. Broader ImpactThe expected commercial and social benefits of the proposed activity will be substantial as the developed devices will have utility in a variety of photonic devices including phase retarders and true time delay lines, micro phased array systems, changeable focus lenses, and beam steering devices. In addition, it will provide new opportunities for the mature liquid crystal industry by creating new non-display applications of liquid crystals.We are planning also for extensive interactions with industry and outreach activities to undergraduate, graduate, and high and middle schools students.

本项目将解决微波和毫米波信号处理设备的需要，这些设备使用基于液晶的移相器工作在10 GHz到100 GHz的范围内。目前的原型设备表明，液晶是在宽频率范围内进行信号处理的有前途的材料。1）简化现有的器件结构，以减少加工步骤2）减少液晶器件的损耗3）识别在微波中具有最佳性能的液晶，并通过掺杂高介电纳米颗粒或铁电纳米颗粒来创造新的液晶材料。智力成果该项目将产生具有以下几个重要优势的器件：1）它们将提供可调的真实时间延迟或大的可调相移，2）该器件将几乎不需要功耗，3）在宽的频率范围上存在低损耗角正切，4）该器件将是小的并且可以集成到晶片上系统中。更广泛的影响拟议活动的预期商业和社会效益将是实质性的，因为开发的设备将在各种光子器件，包括相位延迟器和真正的时间延迟线，微相控阵系统，可变聚焦透镜和光束转向设备的实用程序。此外，通过创造液晶的新的非显示应用，为成熟的液晶产业提供新的机会。我们还计划与产业界进行广泛的互动，并针对大学生、研究生和高中生开展推广活动。