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Microwave Characterization and Performance Assessment of Polymer-Magnetic Nanocomposites using Transmission-Line Based Microwave Resonators

机译:使用基于传输线的微波谐振器对高分子磁性纳米复合材料进行微波表征和性能评估

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摘要

This paper presents the synthesis and microwave characterization of superparamagnetic polymer nanocompositesrnwith uniformly dispersed 8nm Fe3O4 nanoparticles for RF and microwave applications. Microstrip linear resonatorsrn(MLR) with modified substrate structures have been designed at microwave frequencies (2.5GHz) and employed torncharacterize the changes in the intrinsic properties of the polymer nanocomposites. In addition, frequencyrncharacteristics of the resonator have been examined under ambient conditions (i.e., 24℃ and 1Atm of pressure)rnwhile applying external magnetic fields up to 0.6 Tesla. Frequency tunability of 37 MHz (1.5%) and unprecedentedrnimprovement in the loaded quality factor Q_(Loaded) from 13 to 70 (5.4X increase) have been observed, with 13.7dB ofrnreduction in the insertion loss from 24.2dB to 10.5dB.
机译:本文介绍了具有均匀分散的8nm Fe3O4纳米粒子的超顺磁性聚合物纳米复合材料的合成和微波表征,用于RF和微波应用。具有修饰的基板结构的微带线谐振器(MLR)已在微波频率(2.5GHz)上进行了设计,并用于表征聚合物纳米复合材料固有特性的变化。另外,在施加高达0.6特斯拉的外部磁场的同时,在环境条件(即24℃和1Atm的压力)下检查了谐振器的频率特性。已观察到37 MHz(1.5%)的频率可调性以及将负载品质因数Q_(Loaded)从13提高到70(增加5.4倍)的前所未有的提高,插入损耗从24.2dB降低13.7dB到10.5dB。

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  • 来源
  • 会议地点 San Jose CA(US);San Jose CA(US)
  • 作者单位

    Center for Wireless and Microwave Communication Systems (WAMI), Electrical Engineering Department.University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620 camorale@mail.usf.edu;

    rnCenter for Wireless and Microwave Communication Systems (WAMI), Electrical Engineering Department.University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620 jdewdney@mail.usf.edu;

    rnFunctional Material Laboratory (FML), Physics Department.University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620;

    rnFunctional Material Laboratory (FML), Physics Department.University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620;

    rnFunctional Material Laboratory (FML), Physics Department.University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620;

    rnFunctional Material Laboratory (FML), Physics Department.University of South Florida, 4202 E. Fowler Ave., Tampa, FL 33620;

    rnCenter for Wireless and Microwave Communication Systems (WAMI), Electrical Engineering Department.;

    rnCenter for Wireless and Microwave Communication Systems (WAMI), Electrical Engineering Department. jingw@eng.usf.edu;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 微电子学、集成电路(IC);
  • 关键词

    frequency tunability; magnetic nanoparticles; polymer nanocomposites; transmission line rnresonators; Q factor;

    机译:频率可调谐性磁性纳米粒子聚合物纳米复合材料传输线谐振器Q因子;

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