Prof. Oscar Quevedo-Teruel

Communication Systems

School of Electrical Engineering and Computer Science

KTH Royal Institute of Technology

Welcome to my personal webpage

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Narrative biography:

Oscar Quevedo-Teruel received his Telecommunication Engineering and Ph.D. Degrees from Carlos III University of Madrid, Spain in 2005 and 2010.

In 2014, he joined the KTH Royal Institute of Technology (Stockholm, Sweden), where he is presently a Full Professor in the Department of Communication Systems in the School of Electrical Engineering and Computer Science. He is also the responsible for the Antenna Laboratory and Director of the Master Programme in Electromagnetics Fusion and Space Engineering.

He was a distinguished lecturer of the IEEE Antennas and Propagation Society for the period of 2019-2022. He is an IEEE Fellow for his contributions to glide symmetry based metasurfaces and lens antennas. He has been a member of the EurAAP Board of Directors since January 2021. Since January 2022, he is presently the EurAAP vice-chair.

He was an Associate Editor of the IEEE Transactions on Antennas and Propagation since 2018-2022, and he acts as Track Editor in IEEE TAP since 2022. He is the founder and editor-in-chief of the EurAAP journal Reviews of Electromagnetics since 2020.

He has made scientific contributions to periodic structures with higher symmetries, lens antennas, metasurfaces, physical optics and ray tracing. He is the co-author of more than 160 papers in international journals and more than 250 at international conferences.

On-line courses:

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

Lectures

Selected publications:

Lenses combined with arrays:

Title: Lenses Combined with Array Antennas for the Next Generation of Terrestrial and Satellite Communication Systems

Authors: A. Algaba-Brazalez, P. Castillo-Tapia, M. C. Vigano, O. Quevedo-Teruel

Journal: IEEE Communications Magazine, 2024

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Modeling with ray tracing:

Title: 2D Ray Tracing Model for Multilayer Dielectric Dome Arrays with Inner Reflections

Authors: M. Pubill, F. Mesa, A. Algaba-Brazalez, S. Clendinning, M. Johansson, O. Quevedo-Teruel

Journal: IEEE Open Journal of Antennas and Propagation, 2024

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Geodesic lenses:

Title: Two-Dimensional Beam Steering Using a Stacked Modulated Geodesic Luneburg Lens Array Antenna for 5G and Beyond

Authors: P. Castillo-Tapia, O. Zetterstrom, A. Algaba-Brazalez, L. Manholm, M. Johansson, N. J. G. Fonseca, O. Quevedo-Teruel

Journal: IEEE Transactions on Antennas and Propagation, 2023

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Glide-symmetric lenses:

Title: Glide-symmetric fully-metallic Luneburg lens for 5G Communications at Ka-band

Authors: O. Quevedo-Teruel, J. Miao, M. Mattsson, A. Algaba-Brazalez, M. Johansson, L. Manholm

Journal: IEEE Antennas and Wireless Propagation Letters, 2018

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Contact Information

Postal address:

Communication Systems

School of Electrical Engineering and Computer Science

KTH Royal Institute of Technology

Malvinas väg 10

SE-11428 Stockholm

Sweden

Phone:

+46 72-844 41 64

E-mail:

oscarqt@kth.se

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Topics of Research

Glide symmetries:

  • A periodic structure is glide symmetric if it can be repeated after both a translation and a mirroring operation. The study of glide symmetries is an active research topic in the fields of microwave technology, antennas and metamaterials.

  • At KTH, we have been recently demonstrated that 2D glide-symmetric structures can be employed to produce low dispersive equivalent refractive indexes. These periodic unit cells can be used to produce broadband lens and leaky-wave antennas. Additionally, glide-symmetric structures have demonstrated to be able to produce low-cost gap-waveguide technology.
  • More information about... Glide Symmetries

    Ray tracing and physical optics:

  • Under the assumption that the wavelength of the electromagnetic wave is small enough, the study of the wave propagation in inhomogeneous isotropic medium can be approached by means of geometrical optics. This means that we can use geometrical considerations to determine the paths of its associated rays as well as to compute its corresponding intensity.
  • We have implemented a general code that combines a ray tracing with ray tube and diffraction theories; and the results are extremely accurate for geodesic lenses, as well as for dielectric radome/lenses.
  • Our code permits the calculation of radiation patterns, scan losses, gain, directivity and radiation efficiency; and it is not limited to rotationally-symmetric shapes.
  • More information about... Ray tracing and physical optics

    Geodesic lenses:

  • Geodesic lenses have attracted the attention of the antenna community due to two of their advantageous properties: low cost and high efficiency.

  • These lenses make use of a physical path that mimics an equivalent graded refractive index. Therefore, differently to conventional lenses, they can be implemented in a fully metallic configuration using parallel plate waveguides. This makes these lenses ideal for high-frequency applications, where dielectric materials have prohibitive losses.

  • These lenses are an excellent candidate for new applications in the millimeter frequency regime. For example, they are being considered for antenna solutions in 5G/6G, satellite communications in Low-Earth Orbit constellations and automotive radars.

  • More information about... Geodesic lenses
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