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

fYear

2015

fDate

14-17 June 2015

Firstpage

1

Lastpage

8

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications (IWT), 2015 International Workshop on

Conference_Location

Santa Rita do Sapucai

Type

conf

DOI

10.1109/IWT.2015.7224561

Filename

7224561