Diseño de una cámara anecoica para aplicaciones móviles.

Abstract

An anechoic chamber was designed for mobile applications in this research, contributing to the Research Institution and the Electromagnetism and Microwave Research Group; form the Faculty of Computer Science and Electronics at ESPOCH, for the design and equipment of the electromagnetism laboratory. For its development through the documentary analysis and synthesis were described electromagnetic absorbent materials, shielded radio frequency enclosures, configurations for measuring antennas and equipment. Parameters and design elements were defined as the frequency of operation of mobile applications, types of antennas, required measurements, available space and international standards. AutoCad was used for the graphic representations, the resultant design works with 80 MHz to 40 GHz, with internal reflectivity -6 to -26 dB from 80 to 300 MHz incrementing to -37dB to 500 MHz and between -45 and -52 dB till 40 GHz, with shielded enclosures with effectiveness shielding greater than 90 dB and the configuration of spherical measurement with a network analyzer that will measure several types of antennas. The definition of parameters and design elements as well as the establishment of international standards helped to choose the components. It is recommended that when performing millimeter wave measurements, replace the road absorber with the pyramid absorbent for best results.