Miniaturised wideband circularly-polarised log-periodic koch fractal antenna

摘要

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 logperiodic dipole antenna without a matching network. In addition, Koch-shaped dipoles are used as the radiation elements in the design