Arranjos de antenas bioinspiradas desenvolvidos pela Expressão de Gielis.

Abstract

In recent years research into solutions inspired by nature has attracted the attention of many institutions in the world. Natural systems to ensure their perpetuity, normally adapted their characteristics to the environment, thus their forms, internal and external connections can be used as optimized solutions to problems, which in many situations are analogous to the ones encountered in engineering. In this work is proposed the development of plant-shapes inspired antenna array, with flexible substrates (denim, polyamide and acetate of the cellulose – transparent substrate), rigid (fiberglass and silicon) substrates, and radiating elements in copper, aluminium and film of oxide Tin Indio (transparent conductor). The proposed metholdolgy uses images generated according to the Gielis expression simulated in the ANSYS Designer software, whose results are compared with measurements in prototypes. The use of the bio-inspired shapes promoted increase in antenna perimeters and consequently increase their electrical length, allowing the more compact structures than the circular and square shapes, similar characteristic to the fractals, operating in the WLAN and ISM bands, in planar antennas, and different manufacturing methods.