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【学术报告】“智能系统与装备电磁环境效应”工信部重点实验室学术报告

发布人: 发布时间:2019-10-21

报告题目:Glide symmetries: a newdegree of freedom for the design of periodic structures

报 告 人: 瑞典皇家理工学院(KTH)  Prof. Oscar Quevedo-Teruel

报告时间: 2019年10月25日(周五)下午14:00,北航新主楼F-708

技术支持:IEEE APS Beijing Chapter(IEEE天线与电波传播学会北京分会)

URSI Commission B(国际无线电科学联盟中国委员会电磁场与波专委会)

摘要:

Fig.1: 1D glide- (left) and twist- (right)  symmetric geometries.

Focused onone-dimensional structures with potential application in low-dispersive leakywave antennas. However, the development of planar/printed technologies in the80s and 90s associated to their low-cost for low-frequency applications, thestudies of glide symmetries stopped.

In the beginning of the 21st century, with arrival of metamaterials, there wasa significant development of the understanding of periodic structures, and newmethods of analysis were introduced. This theoretical development, togetherwith the interest of industry in mm-waves, particularly for communicationssystems such as 5G, created an opportunity to explore the possibilities ofglide symmetries, especially in two-dimensional configurations.

Glide-symmetric structures has recently attracted the attention of researchersdue to their attractive properties for practical applications. Among theirinteresting properties are low-dispersive responses in fully metallicstructures such as parallel plate or co-planar waveguides (CPW), bandgapsassociated to the symmetries and large electromagnetic bandgaps (EBGs).

In this talk, Dr. Quevedo-Teruel will describe the most significant works inglide symmetries, including their application for the design of gap-waveguidetechnology and planar lens antennas with steerable angles of radiation.

报告人简介:

Oscar Quevedo-Teruel_smallOscar Quevedo-Teruel is aSenior Member of the IEEE. He received his degree in TelecommunicationEngineering from Carlos III University of Madrid Spain in 2005, part of whichwas done at Chalmers University of Technology in Gothenburg, Sweden. He obtainedhis PhD from Carlos III University of Madrid in 2010 and was then invited as apostdoctoral researcher at the University of Delft (The Netherlands). From2010-2011, Dr. Quevedo-Teruel joined the Department of Theoretical Physics ofCondensed Matter at Universidad Autonoma de Madrid as a research fellow andwent on to continue his postdoctoral research at Queen Mary University ofLondon from 2011-2013.

In 2014, he joined the Electromagnetic EngineeringDivision, in the School of Electrical Engineering and Computer Science at KTHRoyal Institute of Technology in Stockholm, Sweden where he is an AssociateProfessor and director of the Master Programme in Electromagnetics Fusion andSpace Engineering. He is an Associate Editor of the IEEE Transactions onAntennas and Propagation since 2018, and he is the delegate of EurAAP forSweden, Norway and Iceland for the period 2018-2020. He is a distinguishedlecturer of the IEEE Antennas and Propagation Society for the period 2019-2021.

He has made scientific contributions to highersymmetries, transformation optics, lens antennas, metasurfaces, leaky waveantennas, multi-mode microstrip patch antennas and high impedance surfaces. Heis the co-author of 77 papers in international journals, 139 at internationalconferences and has received approval on 3 patents.

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