Novel RF/Microwave Switchable Filters Based on Electrostrictive Resonance in Ferroelectric Thin Films

基于铁电薄膜电致伸缩谐振的新型射频/微波可切换滤波器

• 批准号: 0901464
• 负责人: Amir Mortazawi
• 金额: $ 35万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0901464&HistoricalAwards=false
• 关键词: Novel; RF; Microwave; Switchable; Filters

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The objective of this research is to demonstrate novel intrinsically switchable filters for frequency-agile communication systems and cognitive radios. The basis of the proposed effort is the investigation of field-tunable electrostriction effect in ferroelectric thin films. The resonant behavior of the ferroelectric thin film can be switched on and off through application of a DC bias voltage, and can potentially be utilized for designing low cost, high performance and integrated intrinsically switchable radio frequency (RF) and microwave resonators and filters.Frequency-agile devices provide the ability to switch communication channels through switchable and tunable frontend filters. The realization of frequency-agile components with minimal complexity is further desired for miniature low-power wireless systems integrated into a single chip. In this work, a key building block for a frequency-agile transceiver is proposed, utilizing the acoustic wave and microwave interactions in ferroelectric thin films.This project will serve to educate graduate students through direct participation in the research. The proposed research is of particular value for students due to the interdisciplinary nature, where students will become experts in thin film materials deposition and characterization, device fabrication, acoustic resonance, and microwave devices. In addition, the efforts of this project will include supporting outreach programs aimed at promoting diversity among scientists and engineers. These efforts include involvement of undergraduate students through the University Research Opportunity Program (UROP) at the University of Michigan, the NSF REU, Marian Sara Parker and M-STEM Programs specifically designed to provide research experiences to undergraduate and graduate female and minority students.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。这项研究的目标是展示用于频率捷变通信系统和认知无线电的新型本质可切换滤波器。铁电薄膜的场可调电致伸缩效应是本文研究的基础。铁电薄膜的谐振行为可以通过施加直流偏置电压来切换，并且可以潜在地用于设计低成本、高性能和集成的本征可切换射频（RF）和微波谐振器和滤波器。对于集成到单个芯片中的微型低功率无线系统，还期望以最小的复杂性实现频率捷变组件。在这项工作中，一个关键的构建块的频率捷变收发器，利用铁电薄膜中的声波和微波的相互作用。这个项目将有助于教育研究生通过直接参与研究。由于跨学科性质，拟议的研究对学生特别有价值，学生将成为薄膜材料沉积和表征，器件制造，声学谐振和微波器件方面的专家。此外，该项目的努力将包括支持旨在促进科学家和工程师多样性的外联方案。这些努力包括通过密歇根大学的大学研究机会方案（UROP）、NSF REU、Marian Sara帕克和M-STEM方案让本科生参与，这些方案专门为本科生和研究生女生和少数民族学生提供研究经验。