Log Periodic Antenna
A log-periodic antenna might be a multi-element, directional antenna arranged to operate over a wide band of frequencies and has the capacity to supply directivity and gain.
The log-periodic antenna has radiation and impedance characteristics that are repeated as a logarithmic function at the excitation frequency range. These antennas are fractal antenna (self-similar antenna) arrays.
RFecho log-periodic antenna has the frequency range from 0.1GHz to 35GHz, Nominal impedance of 50 Ohm and Tripod connection is 1/4″.