The Koch monopole: a small fractal antenna

Author

Baliarda, Carles Puente ; Romeu, Jordi ; Cardama, Angel

Author_Institution

Dept. de Teoria del Senyal i Comunicacions, Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

48

Issue

11

fYear

2000

fDate

11/1/2000 12:00:00 AM

Firstpage

1773

Lastpage

1781

Abstract

Fractal objects have some unique geometrical properties. One of them is the possibility to enclose in a finite area an infinitely long curve. The resulting curve is highly convoluted being nowhere differentiable. One such curve is the Koch curve. In this paper, the behavior the Koch monopole is numerically and experimentally analyzed. The results show that as the number of iterations on the small fractal Koch monopole are increased, the Q of the antenna approaches the fundamental limit for small antennas

Keywords

Q-factor; antenna radiation patterns; current distribution; electric impedance; fractals; iterative methods; monopole antennas; Koch curve; Koch monopole; Q factor; current distribution; fractal antenna; highly convoluted curve; infinitely long curve; iterations; numerical analysis; quality factor; radiation pattern; Antenna feeds; Antenna radiation patterns; Antennas and propagation; Circuits; Fractal antennas; Frequency selective surfaces; Multifrequency antennas; Resonance; Shape; Surface fitting;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.900236

Filename

900236