CAREER: Design, Modeling, and Development of Active Aperture Antennas

职业：有源孔径天线的设计、建模和开发

• 批准号: 9701793
• 负责人: Gregory Washington
• 金额: $ 28.5万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-07-01 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9701793&HistoricalAwards=false
• 关键词: CAREER; Design; Modeling; Development; Active

9701793 Washington The primary goal of this work is the development of a novel class of aperture antennas capable of variable directivity (beam steering) and power density (variable focusing or beam shaping). The actuation for these antennas is employed using a distinct mechanism. The mechanism employs Polyvinylidene Fluoride (PVDF) film bonded to a lightweight metalized mylar structure. Since the film is piezoelectric, any electrical voltage drop across the film will cause the film to lengthen in its stretch direction. The resulting lateral deflection from a length change causes the production of a moment which causes the antenna surface deflection. In addition, the educational aspects of this proposal can be summarized in three distinct task: The first involves the development of hands-on demonstrations that highlight major principles of mechanical, electrical, and electromechanical systems. The second involves the use of an interactive web site with hypertexted class notes to enable one to teach at level more in-depth than general classroom knowledge. The final component is the development of an interactive slide presentation that highlights the contribution of African Americans, Hispanics, and Women to engineering and science. ***

9701793华盛顿这项工作的主要目标是开发一种新型的孔径天线，能够可变的方向性（波束转向）和功率密度（可变聚焦或波束成形）。 这些天线的驱动使用不同的机制。 该机制采用聚偏二氟乙烯（PVDF）薄膜结合到一个轻量级的金属化聚酯薄膜结构。 由于膜是压电的，因此膜上的任何电压降将导致膜在其拉伸方向上伸长。 由长度变化产生的横向偏转导致产生力矩，该力矩导致天线表面偏转。 此外，这项建议的教育方面可以总结为三个不同的任务：第一个涉及动手演示，突出机械，电气和机电系统的主要原则的发展。 第二个涉及到使用一个互动的网站与超文本课堂笔记，使一个教的水平比一般的课堂知识更深入。 最后一部分是互动幻灯片的发展，突出了非洲裔美国人，西班牙裔和妇女的工程和科学的贡献。 ***