Análisis de la variación del coeficiente de reflexión y VSWR en una antena microstrip diseñada con diferentes materiales para la banda mmW

Abstract

This article details and analyzes the simulation of three rectangular patch type microstrip antennas with transmission line resonating in the millimeter wave (mmW) band. The antennas are working in the 42.5-43.5 [GHz] frequency band, these are made up of a substrate with FR4 epoxy, the ground and the patch in which they will be designed with different conductive materials which are gold, copper, iron, silver and aluminum because these elements have different conductivity, which will be carried out in the ANSYS HFSS simulation software, this allows designing such antennas at high frequencies. When the antennas are simulated with the material change conductor, being tuned to its resonant frequency 43[GHz], values are obtained to be analyzed as the reflection coefficient S (1,1) obtaining values less than -20 dB, a voltage standing wave ratio VSWR in ranges from 1 to 1.5 and the radiation pattern without nulls in its top view. The analysis shows that the combination between the gold patch and the iron ground are the ones that obtain the best results in the parameters S (1,1) with -23.98 and a VSWR of 1.09