Operating Frequency Displacement on Patch Antenna due to Positioning Structure Effect

Positioning mechanisms are required in order to improve antenna reception through a better orientation, reducing the physical interference produced by coupling of impedance, when orientation is made by hand. In this work, a positioning support for patch antennas was designed in order to know its effect over the patch antenna's performance. It is well-known that fabrication process of the antenna produces a shift in its frequency response, but there was not found information about the effect of the structural support. Simulations to known this effect were performed considering two types of material for the structural support. A patch antenna, designed for Wi-Fi (2.4 GHz), was used to analyze this effect.