Characterization of THz radiation by collimated wavefront aperture raster scanning

Cita com:
hdl:2117/342877
Document typeConference report
Defense date2020
PublisherUniversidad de Málaga
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial
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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.
Collections
- 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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