EAGER: SARE: Multiferroic Shields for Smart Analog Security

EAGER：SARE：用于智能模拟安全的多铁屏蔽

• 批准号: 2029007
• 负责人: Markondeya Raj Pulugurtha
• 金额: $ 28.95万
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2024-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2029007&HistoricalAwards=false
• 关键词: EAGER; SARE; Multiferroic; Shields; Smart

Multiferroic materials allow for dielectric and magnetic property control through active biasing. Leveraging these features, this project will introduce new types of adaptable and reconfigurable electromagnetic structures. Specifically, the project will develop multiferroic substrates, tunable biasing networks, and electromagnetic structures for packaging and integration on a common platform. Research will also focus on synthesis of multiferroic substrates compatible for such integration. The goal is to attain active control and reconfigurability of bulk substrate properties to provide an adaptable RF shielding of wireless communication systems. Overall, the project aims to increase security to RF systems through mitigation of wireless interferences, concurrently allowing secure data-channels. Focus will be on achieving selective blocking or transmission of radio waves, and reconfigurability of frequency and transmitting direction. This multidisciplinary project will bridge the gap between broadly applicable fields of multiferroics and electromagnetics. The project leverages two active NSF Research Experience for Undergraduates (REU) sites at Florida International University to improve outreach and training of undergraduates.Specifically, the project will introduce new architectures and external magnetic-field biasing to control the dielectric properties of bulk substrates. Material integration will be pursued for tunable reflecting antenna arrays, transmitting antenna arrays, frequency selective surfaces (FSS) and antennas and thus exploit the properties of multiferroic substrates towards tunability. The project has three broad research components: (1) synthesis of multiferroic substrates by embedding core-shell nanoparticles formed by cobalt ferrite cores and barium strontium titanate (BST) shells; (2) integration of frequency selective surfaces and antenna structures, co-designed with tunable multiferroic substrates for dynamic passbands; (3) development of active biasing networks to control multiferroic media properties while concurrently being neutral to the FSS and antenna performance. Beyond these, the project will focus on reducing power levels of active networks for efficient performances. This will be achieved by using nanomagnetic field amplifying agents and multiferroic nanocomposites. Research will also focus on effective packaging of the biasing architectures, electromagnetic structures and multiferroic substrates to achieve 3D excitation and tuning. These solutions will be experimentally demonstrated for tunable shielding applications and subsequently tested with wireless communication systems to demonstrate the project outcomes.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

多铁性材料允许通过有源偏置来控制介电和磁特性。利用这些功能，该项目将引入新型的可适应和可重构的电磁结构。具体而言，该项目将开发多铁性基板，可调偏置网络和电磁结构，用于在一个共同的平台上进行封装和集成。研究还将集中在合成兼容这种集成的多铁性基板。目标是实现体衬底性质的主动控制和可重构性，以提供无线通信系统的自适应RF屏蔽。总的来说，该项目旨在通过减轻无线干扰来提高射频系统的安全性，同时允许安全的数据通道。重点将是实现无线电波的选择性阻断或传输，以及频率和传输方向的可重新配置性。这个跨学科的项目将弥合多铁性和电磁学广泛应用领域之间的差距。该项目利用了佛罗里达国际大学的两个活跃的NSF本科生研究经验（REU）站点，以改善本科生的拓展和培训。具体而言，该项目将引入新的架构和外部磁场偏置来控制大块衬底的介电特性。材料集成将追求可调谐反射天线阵列，发射天线阵列，频率选择表面（FSS）和天线，从而利用多铁性基板的可调谐性的属性。该项目有三个广泛的研究组成部分：（1）通过嵌入由钴铁氧体核和钛酸锶钡（BST）壳形成的核-壳纳米颗粒合成多铁性基底;（2）集成频率选择表面和天线结构，与可调谐多铁性基底共同设计用于动态通带;（3）开发有源偏置网络以控制多铁性介质特性，同时对FSS和天线性能保持中性。除此之外，该项目还将专注于降低有源网络的功率水平，以提高性能。这将通过使用纳米磁场放大剂和多铁性纳米复合材料来实现。研究还将侧重于偏置架构，电磁结构和多铁性基板的有效封装，以实现3D激励和调谐。这些解决方案将在可调屏蔽应用中进行实验验证，随后将在无线通信系统中进行测试，以展示项目成果。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Low-Frequency Power Telemetry Using Multiferroic Laminate Heterostructures

• DOI: 10.1109/3d-peim55914.2023.10052239
• 发表时间: 2023-02
• 期刊: 2023 Fourth International Symposium on 3D Power Electronics Integration and Manufacturing (3D-PEIM)
• 作者: Veeru Jaiswal;Pawan Gaire;S. Bhardwaj;A. Hassan;J. Volakis;P. Raj

Reconfigurable Antennas and FSS with Magnetically-Tunable Multiferroic Components

• DOI: 10.1109/ectc51906.2022.00027
• 发表时间: 2022-05
• 期刊: 2022 IEEE 72nd Electronic Components and Technology Conference (ECTC)
• 作者: Pawan Gaire;J. Volakis;S. Bhardwaj;Veeru Jaiswal;M. Pulugurtha

RIS with Nanomaterials for FutureG Applications

• DOI: 10.1109/nmdc57951.2023.10343722
• 发表时间: 2023-10
• 期刊: 2023 IEEE Nanotechnology Materials and Devices Conference (NMDC)
• 作者: G. Al-Duhni;Tatiana Valera;M. Pulugurtha;John L. Volakis;S. Venkatakrishnan

Dual-Band 3D Multiferroic Antenna Stack for Passive Telemetry Sensors

用于无源遥测传感器的双频段 3D 多铁天线堆栈

• 发表时间: 2023
• 期刊: 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI
• 作者: Veeru Jaiswal, Ghaleb Al

Tunable Multiferroics for Reconfigurable RF System Packages

用于可重构射频系统封装的可调谐多铁性材料

• DOI: 10.1109/nmdc50713.2021.9677517
• 发表时间: 2022
• 期刊: 2021.
• 作者: Gaire, Pawan;Jaiswal, Veeru;Sayeed, Sk Yeahia;Volakis, John L.;Pulugurtha, Markondeya Raj;Bhardwaj, Shubhendu
• 通讯作者: Bhardwaj, Shubhendu