SpecEES:Collaborative Research: Power and Spectral Efficiency enabled by RF Co-Designed Electrically-Adaptive Front Ends

SpecEES:协作研究:射频联合设计的电自适应前端实现功率和频谱效率

基本信息

项目摘要

The rapid growth of wireless communications and sensing demand more efficient use of the precious frequency spectrum, imposing tougher constraints on the radio-frequency hardware. To responds to this challenge, transformative radio front-end designs are needed. This collaborative project proposes new classes of electrically-tuned RF front-ends for efficient, on-demand spectrum access/sharing in spectrally-congested environments. Although 5G networks, devices and communication schemes have been extensively discussed, they are not yet appropriately defined, deployed and fully exploited. The goal of this project is to develop RF front-ends with multiple levels of transfer-function adaptivity enabled by electrically-controlled materials and new types of RF filters that can: (a) arbitrarily define the band of operation; (b) efficiently transmit/receive under dynamic spectrum allocations; and (c) co-exist in unlicensed bands. The co-design of filters with other transceiver components such as antennas, power amplifiers and low-noise amplifiers will increase power efficiency while reducing the size of RF front-end. The multi-level adaptivity and circuit co-design are fundamental methodology advances which will allow transformative improvements in hardware performance. The proposed research will be carried out by a unique multi-institute team from the University of Colorado at Boulder (UCB) and the University of Michigan (UM), with complementary expertise in RF filters, active circuits and microfabrication. The outreach components of this project focus on: (i) broadening the undergraduate experience in practical training and research through NSF Research Experiences for Undergraduates (REU) program, as well as university and industry-funded opportunities for students; (ii) enhancing the UCB/UM curriculum with new class contents integrating the proposed research results; (iii) increasing the participation of underrepresented undergraduate/graduate students by active recruiting through organized events and university scholarship programs; and (iv) outreach efforts for K-12 students through existing infrastructure at UCB/UM such as the well-established Science Discovery Program at UCB.The technical objective of the proposed collaborative research is to investigate new classes of fully-reconfigurable co-designed RF front-ends that will facilitate efficient spectrum access at frequencies below 6 GHz, where the spectrum is most congested. For 5G applications, the millimeter-wave frequency allocations allow for larger bandwidths, but are accompanied by higher atmospheric loss and higher cost. The proposed hardware developments will exploit the multi-functional voltage-controlled properties of barium strontium titanate (BST) as structural materials for bulk acoustic-wave resonators (FBARs) and electrically-tuned reactive elements. This allows for significantly increased functionality through: (1) new filter design methodologies and tuning schemes for continuous and analog RF tuning; (2) high quality factor FBARs with intrinsically-switched transfer function; (3) co-designed RF passive and active circuit elements resulting in miniaturization and reduced loss; and (4) frequency-selective agile harmonic terminations to increase the circuit efficiency and dynamically adapt to RF signals with diverse spectral and spatial content. The collaborative research effort will lead to the development of switchless transmitter/receiver front-end chains with multiple levels of transfer function adaptivity capable of achieving higher efficiency and lower noise than conventional approaches. The proposed tuning speeds on the order of hundreds of ns will allow dynamic frequency coverage in 0.8 - 6 GHz and adaptive multi-band front-end chains.
无线通信和传感的快速发展要求更有效地利用宝贵的频谱,对射频硬件施加了更严格的限制。为了应对这一挑战,需要变革性的无线电前端设计。该合作项目提出了新型电调谐RF前端,用于在频谱拥塞环境中实现高效、按需的频谱接入/共享。尽管5G网络、设备和通信方案已被广泛讨论,但它们尚未得到适当的定义、部署和充分利用。该项目的目标是开发具有多级传递函数自适应性的RF前端,这些RF前端由电控材料和新型RF滤波器实现,这些RF滤波器可以:(a)任意定义操作频带;(B)在动态频谱分配下有效地发送/接收;以及(c)在未授权频带中共存。滤波器与其他收发器组件(如天线、功率放大器和低噪声放大器)的协同设计将提高功率效率,同时减小RF前端的尺寸。多级自适应性和电路协同设计是基本的方法学进步,将允许硬件性能的变革性改进。拟议的研究将由来自博尔德科罗拉多大学(UCB)和密歇根大学(UM)的独特多机构团队进行,在RF滤波器,有源电路和微加工方面具有互补的专业知识。该项目的外展部分侧重于:(一)通过NSF本科生研究经验(REU)计划,以及大学和行业资助的学生机会,扩大本科生在实践培训和研究方面的经验;(二)通过整合拟议研究成果的新课程内容,加强UCB/UM课程; ㈢通过有组织的活动和大学奖学金方案积极征聘,增加代表性不足的本科生/研究生的参与;及(iv)透过UCB/UM现有的基础设施,例如UCB的科学探索计划,为K-12学生提供外展服务。建议的合作研究的技术目标是研究新的完全-可重新配置的共同设计的射频前端,将有助于在频谱最拥挤的6 GHz以下的频率上进行有效的频谱接入。对于5G应用,毫米波频率分配允许更大的带宽,但伴随着更高的大气损耗和更高的成本。拟议的硬件开发将利用钛酸锶钡(BST)的多功能电压控制特性作为体声波谐振器(FBAR)和电调谐电抗元件的结构材料。这允许通过以下显著增加的功能性:(1)用于连续和模拟RF调谐的新的滤波器设计方法和调谐方案;(2)具有内在切换传递函数的高品质因数FBAR;(3)共同设计的RF无源和有源电路元件,导致小型化和降低的损耗;以及(4)频率选择性捷变谐波终端,以增加电路效率并动态地适应具有不同频谱和空间内容的RF信号。合作研究工作将导致无开关发射机/接收机前端链的开发,具有多级传递函数自适应能力,能够实现比传统方法更高的效率和更低的噪声。所提出的数百ns量级的调谐速度将允许0.8 - 6 GHz的动态频率覆盖和自适应多频带前端链。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Reconfigurable Radios Employing Ferroelectrics
采用铁电体的可重构无线电
  • DOI:
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    3.6
  • 作者:
    Milad Koohi, Amir Mortazawi
  • 通讯作者:
    Milad Koohi, Amir Mortazawi
Reconfigurable Radios Employing Ferroelectrics: Recent Progress on Reconfigurable RF Acoustic Devices Based on Thin-Film Ferroelectric Barium Strontium Titanate
  • DOI:
    10.1109/mmm.2020.2971376
  • 发表时间:
    2020-05-01
  • 期刊:
  • 影响因子:
    3.6
  • 作者:
    Koohi, Milad Zolfagharloo;Mortazawi, Amir
  • 通讯作者:
    Mortazawi, Amir
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Amir Mortazawi其他文献

Amir Mortazawi的其他文献

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{{ truncateString('Amir Mortazawi', 18)}}的其他基金

SWIFT: Electric Field Controlled Integrated Multiferroic Radio Frequency Devices for Interference Immune Broadband Wireless Systems
SWIFT:用于抗干扰宽带无线系统的电场控制集成多铁射频器件
  • 批准号:
    2229440
  • 财政年份:
    2022
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant
Technologies for a position independent wireless power transmission system
位置无关无线电力传输系统技术
  • 批准号:
    1809365
  • 财政年份:
    2018
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant
Intrinsically Switchable Ferroelectric Filter Banks for Frequency Agile and Reconfigurable Radios
用于频率捷变和可重构无线电的本质可切换铁电滤波器组
  • 批准号:
    1608338
  • 财政年份:
    2016
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant
High Sensitivity and Wide Dynamic Range IR Sensors Based on Electrostrictive Effect in Thin Film Barium Strontium Titanate.
基于薄膜钛酸锶钡电致伸缩效应的高灵敏度和宽动态范围红外传感器。
  • 批准号:
    1407580
  • 财政年份:
    2014
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant
New Approaches for the Design of Integrated phased Arrays
集成相控阵设计的新方法
  • 批准号:
    1128386
  • 财政年份:
    2011
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant
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
  • 财政年份:
    2009
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant
Integrated Low Phase Noise Millimeter-Wave Oscillators Based on High-Order Resonance Circuits
基于高阶谐振电路的集成低相位噪声毫米波振荡器
  • 批准号:
    0725593
  • 财政年份:
    2007
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant
Novel Circuits for the Design of Low Cost Millimeter Wave Phased Arrays
用于低成本毫米波相控阵设计的新颖电路
  • 批准号:
    0457543
  • 财政年份:
    2005
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant
BST Based Linearizers and Matching Circuits for High Efficiency RF Power Amplifiers
用于高效射频功率放大器的基于 BST 的线性化器和匹配电路
  • 批准号:
    0300421
  • 财政年份:
    2003
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant
RIA: Novel Millimeter-Wave Power Combining Structures
RIA:新型毫米波功率组合结构
  • 批准号:
    9110155
  • 财政年份:
    1991
  • 资助金额:
    $ 28万
  • 项目类别:
    Standard Grant

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