Title :
Miniaturised wideband circularly-polarised log-periodic koch fractal antenna
Author :
Guo Liu ; Liang Xu ; Zhensen Wu
Author_Institution :
Inst. of Radio Wave Propagation, Xidian Univ., Xi´an, China
Abstract :
A small size wideband (2-6 GHz) circularly-polarised log-periodic Koch fractal antenna (LPKFA) is proposed. The circular polarisation is produced by using a pair of unequal length crossed-dipoles, and the wideband property is achieved based on the concept of the log-periodic dipole antenna without a matching network. In addition, Koch-shaped dipoles are used as the radiation elements in the design.
Keywords :
UHF antennas; antenna radiation patterns; broadband antennas; dipole antenna arrays; electromagnetic wave polarisation; fractal antennas; log periodic antennas; microwave antenna arrays; Koch-shaped dipoles; LPKFA; circularly polarised antenna; frequency 2 GHz to 6 GHz; log-periodic Koch fractal antenna; log-periodic dipole antenna; miniaturised wideband antenna; radiation elements; unequal length crossed-dipoles;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.2418
