Title :
Fractal bowtie antenna with quarter-wave transformers feed system
Author :
Aires Teixeira, Poliane ; Justino Ribeiro, Jose Antonio
Author_Institution :
Inst. Nac. de Telecomun. - Inatel, Santa Rita do Sapucaí, Brazil
Abstract :
In this paper a Sierpinski fractal bowtie microstrip antenna is proposed. From some experiments, the multiband behavior of these antennas types will be demonstrated. In order to obtain a broadband operation, changes in radiator element, in feed system and in ground plane were applied. Feed system uses microstrip line with quarter-wave transformers designed through the binomial sequence and on Tschebyscheff polynomials. These modifications influenced the antenna performance for a return loss within acceptable limits between 6.2GHz and a maximum frequency of 20GHz.
Keywords :
antenna feeds; broadband antennas; fractal antennas; microstrip antennas; microstrip lines; polynomials; transformers; Sierpinski fractal bowtie microstrip antenna; Tschebyscheff polynomials; binomial sequence; broadband operation; frequency 6.2 GHz to 20 GHz; microstrip line; quarter-wave transformer feed system; radiator element; return loss; Feeds; Fractals; Impedance; Microstrip; Microstrip antennas; Brodband operation; Sierpinski triangle; fractal bowtie antennas; quarter-wave transformers;
Conference_Titel :
Telecommunications (IWT), 2015 International Workshop on
Conference_Location :
Santa Rita do Sapucai
DOI :
10.1109/IWT.2015.7224561
