Análisis de los parámetros de dispersión de una antena helicoidal para banda de onda milimétrica

Abstract

The following article shows the analysis of the dispersion parameters S (1,1) of a helical antenna with a loop, the loop or helix is made up of a square conductor of gold material, coupled to a cylindrical conductor, the same that crosses the substrate and the ground where it is grouped in a power port at 50 Ω impedance, presents a sectorial radiation pattern with a maximum directivity angle phi of 330 degrees and a bandwidth of 80 degrees, its operation is in the wave band millimeter at a frequency of 60 GHz, with left circular polarization. Formed by a dielectric composed of Rogers TMM 4 laminated material with relative permittivity of 4.5, gold and copper as conductive material due to their high conductivity for both the power supply and the ground respectively, parameters are obtained whose values are -23.3516 dB for S (1,1) and 1.1828 for VSWR, a maximum gain of 8.3089 dB. Designed and simulated in ANSYS HFFS software through changes in its geometric structure such as: size, thickness, height, geometric shape and type of material for both the conductor and the dielectric, helical and ground.