Implementación de una antena patch reconfigurable en frecuencia para la operación en dos bandas LTE

Abstract

This work proposes the design, simulation, and implementation of a compact frequency reconfigurable patch antenna for applications on 3G and 4G-LTE cellular systems, specifically in the 850 MHz and 1.7 GHz bands with double feed supply and whose frequency reconfiguration will be controlled by the phase feed.

Chapter 1 sets out the main characteristics regarding patch antennas. In addition, a brief description of current multifrequency radiant body implementations is made.

Chapter 2 starts with a method for the characterization of the FR-4 substrate, the dielectric constant of which is used for the theoretical design of the patch. The radiant element is then modeled and simulated with and the behavior of the input impedance is studied. With double feeding, reconfigurability is analyzed through simulations in CST Studio Suite. The simulations were carried out in the external project PIE-DETRI-PUCE-2019.

Chapter 3 shows the implementation of the proposed structure on the FR-4 substrate once its software parameters are optimized. Simple test circuits are designed and built that support the project validation. Finally, reconfigurability measurements are performed with the network vector analyzer.