Advanced Cavity Filter Tuning Methodology Using Photoconductive Polymers

使用光电导聚合物的先进腔体滤波器调谐方法

• 批准号: 511849-2017
• 负责人: Yagoub, Mustapha
• 金额: $ 1.82万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640061
• 关键词: Advanced; Cavity; Filter; Tuning; Methodology

Coaxial cavity filters, for RF front-ends operating in the 108-138 MHz band, selectively suppress interferingsignals and sideband noise of co-located transmitters on closely spaced receivers thus, protecting thecommunications from interference, false information, or noise. Commercially available devices aremechanically tuned. This project introduces a new electrical-based auto-tuned coaxial filter, which enables anefficient and automatic filtering functionality. The aim is to take advantage of deployed photoconductivepolymers that change their properties within the cavity filter in the presence of light; hence, switching theirstatus from dielectrics to good conductors. The designed high-Q prototype should meet desired specificationssuch as a temperature variation handling from -10 to +60 oC and an insertion loss less than 3 dB.

同轴腔过滤器，用于在108-138 MHz频段中运行的RF前端，有选择地抑制在紧密间隔的接收器上共同定位的发射器的干预信号和侧带噪声，从而保护了该通讯免受干扰，虚假信息或噪声的保护。商业上可用的设备通过机械调整。该项目引入了一个新的基于电气的自动调整同轴滤波器，该滤波器可以发挥效率和自动过滤功能。目的是利用部署的光电导液，在光线存在下改变其在腔滤器中的性质。因此，将Histatus从电介质切换到良好的导体。设计的高Q原型应符合期望的规格，因为温度变化从-10到+60 OC，并且插入损失小于3 dB。