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Characterization of THz radiation by collimated wavefront aperture raster scanning

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hdl:2117/342877

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Nuño Gómez, Daniel-JuanMés informacióMés informació
Santos Blanco, M. ConcepciónMés informacióMés informacióMés informació
Gomez Diaz, J. Sebastian
Romeu Robert, JordiMés informacióMés informacióMés informació
Jofre Roca, LluísMés informacióMés informacióMés informació
Document typeConference report
Defense date2020
PublisherUniversidad de Málaga
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
ProjectSISTEMAS RADIANTES X-WAVE INTEGRADAS DE COMUNICACIONES Y SENSORIZACION (AEI-PID2019-107885GB-C31)
Abstract
We present measurements for characterization of the beam profile and polarization pattern of lens-coupled photoconductive antennas (PCAs) at THz frequencies using a setup with antennas at fixed positions and a movable aperture placed in between collimating THz lenses. The measured beam patterns for co-polar and cross-polar components reveal the expected Airy disc and quadrupole behavior, respectively. The temporal evolution of the polarization in the directions of maximum cross-polar component follows a single-cycle circle with opposite handedness at each side of the antennas line-of-sight (LOS). Results are consistent with those obtained with fiber-coupled movable antennas, while enjoying the simplicity of a free-space laser-PCA feed which does not require painstaking laser realignment for each beam direction measure.
CitationNuño, D. [et al.]. Characterization of THz radiation by collimated wavefront aperture raster scanning. A: Simposium Nacional de la Unión Científica Internacional de Radio. "URSI 2020, XXXV Simposium Nacional de la Unión Científica Internacional de Radio: Málaga, 2 al 4 de septiembre de 2020: libro de actas". Málaga (Andalusia): Universidad de Málaga, 2020, p. 1-4. 
URIhttp://hdl.handle.net/2117/342877
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  • RF&MW - Grup de Recerca de Sistemes, Dispositius i Materials de RF i Microones - Ponències/Comunicacions de congressos [151]
  • Doctorat en Teoria del Senyal i Comunicacions - Ponències/Comunicacions de congressos [296]
  • ANTENNALAB - Grup d'Antenes i Sistemes Radio - Ponències/Comunicacions de congressos [334]
  • Departament de Teoria del Senyal i Comunicacions - Ponències/Comunicacions de congressos [3.458]
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