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68.334  Articles
1 of 6.834 pages  |  10  records  |  more records»
A design of a multilayer RADANT -type antenna based on PIN diodes for the X band is presented. The geometry of cells that conforms the grids and the scanning responses in E and H planes of a 3-bit multilayered antenna are obtained. A designed pair of grid... see more

The design of a Horn-RADANT lens with electronic beam scanning for the Ka frequency band is presented. The prototype of the antenna consists of a 2bit Radant lens installed on the aperture of an E-sectorial horn antenna. A pair of grids, with rectangular ... see more

The methodology to properly calculate the heights of the antennas above the surface of the Earth in a line-of-sight (LOS) microwave link from its radio profile is presented. The effect of the Earth's atmosphere on RF signals, the effective Earth radius fa... see more

El Sistema de Ciencia, Tecnología e Innovación y la actualización del modelo de desarrollo económico de CubaArmando Rodríguez Batista, Jorge Rafael Núñez JoverProyecto Turístico Martín Infierno: contribución al desarrollo turístico sostenible del municipi... see more

Variabilidad espacial de la velocidad de infiltración del agua en el suelo. I. Generación de datosCiencia e Investigación Agraria, Revista latinoamericana en Ciencias de la Agricultura, está indexada en las siguientes bases de datos: Thomson ISI, Alerta a... see more

1 of 6.834 pages  |  10  records  |  more records»