Dr. Oscar Quevedo-Teruel

Assistant Professor

Electromagnetic Engineering

School of Electrical Engineering (EES)

KTH Royal Institute of Technology

Welcome to my personal webpage

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Narrative biography:

Oscar Quevedo-Teruel received his M.Sc. degree in Telecommunication Engineering from Carlos III University of Madrid Spain in 2005, and went on to complete his Master of Engineering at Chalmers University of Technology in Sweden. He obtained his PhD from Carlos III University of Madrid in 2010 and was then invited into a postdoctoral research position at the University of Delft (The Netherlands). From 2010-2011, Dr. Quevedo-Teruel joined the Department of Theoretical Physics of Condensed Matter at Universidad Autonoma de Madrid as a research fellow, and went on to continue his postdoctoral research at Queen Mary University of London from 2011-2013. In 2014, he joined the School of Electrical Engineering (EES)/Electromagnetic Engineering (ETK) at KTH Royal Institute of Technology in Stockholm Sweden where he is an Assistant Professor.

Dr. Quevedo-Teruel was the recipient of the Award of Excellence in 2010 from Carlos III University of Madrid. In 2010, he also received the National Award of Arquimedes for the best supervisory of M. Sc. Theses in Engineering and Architecture throughout Spain. Recently, in 2012, he received the prestigious Raj Mittra Junior Travel Grant.

Dr. Quevedo-Teruel has made significant scientific contribution to higher symmetries (glide and twist), transformation optics, lens antennas, metasurfaces, leaky wave antennas, metamaterials, multi-mode microstrip patch antennas and high impedance surfaces. He is the co-author of more than 45 papers in international journals, more than 100 at international conferences and has received approval on 2 patents.

New publications:

UWB metasurfaces:

Title: Ultra Wide Band Metasurface Lenses Based on Off-Shifted Opposite Layers.

Authors: O. Quevedo-Teruel, M. Ebrahimpouri, M. Ng Mou Kehn

Journal: IEEE Antennas and Wireless Propagation Letters

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Twist-symmetric structures:

Title: Reducing the Dispersion of Periodic Structures with Twist and Polar Glide Symmetries.

Authors: O. Dahlberg, R. Mitchell-Thomas, O. Quevedo-Teruel

Journal: Scientific Reports

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Modelling of glide-symmetric structures:

Title: Accurate Equivalent-Circuit Descriptions of Thin Glide-Symmetric Corrugated Metasurfaces .

Authors: G. Valerio, Z. Sipus, A. Grbic, O. Quevedo-Teruel.

Journal: IEEE Transactions on Antennas and Propagation

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On-line courses:

New videos about Lens Antennas:

PART 1: INTRODUCTION

More videos:

PART 2: HOMOGENEOUS LENSES: SPHERICAL LENSES

PART 3: HOMOGENEOUS LENSES: NON-SPHERICAL

PART 4: LIMITATIONS: ABERRATIONS AND REFLECTIONS

PART 5.1: GRADED INDEX LENSES

PART 5.2: GRADED INDEX LENSES

PART 6: NEW TECHNIQUES: TRANSFORMATION OPTICS AND METASURFACES

Contact Information

Postal address:

Electromagnetic Engineering

School of Electrical Engineering (EES)

KTH Royal Institute of Technology

Osquldas väg 6, fifth floor

SE-100 44 Stockholm

Sweden

+46-8-790 81 97

oscarqt@kth.se

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Topics of Research

Higher symmetries structures:

  • Periodic structures possess twist symmetry when their lattice is created by a translation and an angular rotation. If the angular translation is 2-fold, the angular movement becomes a mirroring, and the higher symmetry is named glide. Both glide and twist symmetries are higher-symmetry periodic structures.

  • Higher symmetries were intensively studied in the ‘60s and ‘70s, especially for the case of propagation in 1D periodicities, which were employed to produce leaky wave antennas.

  • Recently, the study of higher symmetries is again an active research topic in the fields of microwave technology, antennas and metamaterials.

  • More information about... Higher Symmetries

    Transformation Optics:

  • This is a technique that defines the exact modification of magnetic and dielectric constants required, so that the electromagnetic behaviour remains invariant after a transformation to a new coordinate system.

  • This technique can be used to design a number of electromagnetic devices. For instance, it can be applied to produce efficient lens antennas.

  • More information about... Transformations Optics

    Metasurfaces:

  • Metasurfaces are extremely thin layers of sub-wavelength unit cells that can be employed for directing or preventing the propagation of electromagnetic waves.

  • The concept of metasurfaces can be applied to waves from radio-frequencies to optics, including microwaves and TeraHertz (THz) regimes.

  • Their applications are numerous, and may be used to improve the performance of already known devices such as antennas, fibre optics, circuits, radio-telescopes and satellites.

  • More information about... Metasurfaces