Programa del congreso
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Resumen de las sesiones |
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J.2.2: SE-NTA: Nuevas tecnologías de antenas para aplicaciones de ondas milimétricas
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13:00 - 13:15
Estudio de Elementos SIH para Corrección de Fase en Bocinas Planas en Tecnología CLAF-SIW 1Departamento de Teoría de la Señal, Telemáticas y Comunicaciones, Centro de Investigación en Tecnologías de la Información y las Comunicaciones (CITIC-UGR), Universidad de Granada, Granada, España; 2Institut d’Electronique et des Technologies du numéRique (IETR), UMR CNRS 6164, INSA Rennes, France This study explores the characteristics of the substrate-integrated hole (SIH) unit cells within parallel-plate waveguides (PPW). The fundamental SIH unit cell has been enhanced by integrating a metallic patch. A comparative analysis has been conducted between the unit cell featuring a perfect dielectric hollow with a patch and the one incorporating SIH with a patch. The dimensions of the unit cells are investigated to examine the various effective refractive indices. Furthermore, an application scenario is presented, demonstrating the design of a lens leveraging the SIH unit cells within a horn-type aperture antenna in Contact Less Air Filled SIW (CLAF-SIW) technology.
13:15 - 13:30
Diseño y Validación de una RIS de 1-bit con Reconfiguración Mecánica a 28 GHz 1Department of Signal Theory, Telematics and Communications, Centre for Information and Communication Technologies (CITIC-UGR), University of Granada, 18071 Granada, Spain; 2Institut d’Electronique et des Technologies du numeRique (IETR), UMR CNRS 6164, INSA Rennes, France; 3Department of Electronics and Computer Technology, Centre for Information and Communication Technologies (CITIC-UGR), University of Granada, 18071 Granada, Spain En este artículo se describe el desarrollo, fabricación y medida de una celda unitaria ajustable mecánicamente para el diseño de una superficie inteligente reconfigurable (RIS). Se ha implementado un diseño innovador basado en un cilindro metálico y un elemento cónico metalizado para lograr una reconfiguración de 1-bit (desfase de 180º) a 28 GHz. Además se ha realizado su fabricación y la validación experimental del prototipo así como un estudio de propagación en un entorno indoor real.
13:30 - 13:45
Desfasador Mecánico para Antenas con Apuntamiento de Haz Simétrico en Aplicaciones SOTM APL-ITEAM, UPV, España This paper extends and consolidates previous work related to an all-metallic, low-loss mechanical phase shifter implemented in gap-waveguide technology. The phase shifter is developed for Ka-band, to be used as part of a ground terminal for satellite-on-the-move communications. The device is formed by three levels. Levels 0 and 2 remain fixed whereas level 1 is rotatory. The rotation of level 1 does not increase the volume of the device in any case, and allows for the device to introduce a progressive phase shift between consecutive channels. This progressive phase shift provides beam steering capabilities to any array. Thanks to the arc-shaped and inverted-arc-shaped phase shifting waveguides, the device is able to provide continuous beam steering across the broadside point.
13:45 - 14:00
Estudio teórico-experimental de la propagación en interiores en la banda FR3 Universidad politécnica de Cartagena, España In this paper we have compared the time domain delay spread parameters for the FR3 band using 1-40 GHz measured data with those obtained from simulations in the Wireless Insite software. Path loss models have been proposed and a difference of about 2.7 dB in measured and simulated received power has been obtained, the percentage error in the mean square value of the measured and simulated delay spread varies and is at best equal to 2.63 %. A convergence study shows that it is not necessary to simulate more than 4 reflections, since the percentage error in the relative received power and the root mean square delay spread between the measured and simulated results remain almost constant as the number of reflections increases.
14:00 - 14:15
Stacked Array of Groove Gap Waveguide Leaky Wave Antennas for Flat Top Radiation Pattern. Universidad Carlos III de Madrid, España The combination of two leaky wave antennas implemented in Groove Gap Waveguide (GGWG) technology is proposed in this work as a simple way to obtain a flat-top radiation pattern. The design consists of two stacked GGWG leaky wave antennas with different radiation angles and full control on the amplitude distribution of the field to achieve low side-lobes and high radiation efficiency.
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