Miniaturised wideband circularly-polarised log-periodic Koch fractal antenna

作者：Liu, Guo^*; Xu, Liang; Wu, Zhensen

来源：Electronics Letters, 2013, 49(21): 1315-1316.

DOI：10.1049/el.2013.2418

• antenna radiation patterns
• broadband antennas
• dipole antenna arrays
• electromagnetic wave polarisation
• fractal antennas
• log periodic antennas
• microwave antenna arrays
• UHF antennas
• frequency 2 GHz to 6 GHz
• radiation elements
• Koch-shaped dipoles
• log-periodic dipole antenna
• unequal length crossed-dipoles
• LPKFA
• log-periodic Koch fractal antenna
• circularly polarised antenna
• miniaturised wideband antenna

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.

• 出版日期2013-10-10
• 单位西安电子科技大学