A Novel Design of Log-Periodic Koch Dipole Array (LPKDA) Antenna

A miniaturized log-periodic Koch dipole array (LPKDA) antenna is proposed in this paper. With the T-shaped top construction and the novel Koch bifurcated folding dipole, the length of the single dipole element is reduced to the minimum, which immensely reduce the antenna size. The antenna operates in the frequency band of 195 ~ 848 MHz. The characteristics of compact structure, simple structure and wide band are achieved by the proposed antenna.