Antena de microfita em forma de cruz de alto ganho e polarização dupla para aplicações em 5G

Abstract

This final paper presents a dual­polarization, high­gain microstrip patch antenna, designed to operate in fifth generation (5G) cellular networks, in the frequency range around 3.5GHz. The design consists of a microstrip antenna with a cross­shaped patch, with two feeds, operating in TM30 mode. Furthermore, the four parts in the central region of the patch are removed in order to reduce the sidelobe level (SLL). The antenna was simulated in the High­Frequency Structure Simulator module (HFSS) in the Ansys Electronics Desktop program. The simulation results show that the proposed antenna has a bandwidth for the reflection coefficient less than or equal to −10 dB from 3.48 to 3.52 GHz, which represents a bandwidth of 1.14% of the central frequency of operation, and maximum achievable gain of 12.7 dBi at 3.5 GHz. It was noted too that the isolation of two power ports is greater than 46 dB within the bandwidth. With the results presented, it is believed that the proposed antenna is an interesting compact geometry for applications in 5G networks.