Diseño e implementación de una antena logarítmica Ultra Wide Band de 1 a 10 GHz para la caracterización de antenas.

Abstract

In the present research developed and assessed an ultra-wide-band logarithmic antenna for the characterization of other antennas within the bandwidth of 1 to 10 GHz. The methodology used was descriptive type, which details the process of development and optimization of the mathematical calculations needed to establish the requirements of the antenna. It also explains the process of development of the logarithmic geometric figure, establishing a dimension and separation of each dipole. The design process resulted in the geometric model of the antenna obtaining in its simulated results lost by return wave with results below -10 dBm. Then, the manufacturing process was carried out in a cutting machine and engraving router of computer numerical control (CNC) of mark RUIDIAO RD-HA1325, located in the city of Ambato. The engraving is made in a sheet of the dielectric Rogers Duroid 5880. Finally, the analysis and evaluation of the antenna was carried out within the communications and microwave laboratory of the Faculty of Informatics and Electronics, with a signal generator brand Anritsu MG3690C and an Anritsu MS2724C electromagnetic spectrum analyzer obtaining measures of its lost by return wave with results below the -35 dBm. The results obtained from the analysis of the antenna both theoretical and practical determine that, thanks to its ultra-bandwidth of 1 to 10 GHz, it allows determining the characteristics of other antennas with operating frequencies within its bandwidth, and is considered as tool inside the communications laboratory and microwave. It is recommended, for future investigations, to use computers with high computing capacity, because the electromagnetic simulation software works at high processing capacities.