A Study of the Gain of Log Periodic Dipole Array Antennas

Log Periodic Dipole Array (LPDA) antennas are one of the most widely used antennas in various fields of research and applications. Multiple fields of science use this antenna because of its high directivity, less loss and good polarization separation. In the field of particle astrophysics, this antenna is widely used as well to detect the ultra-high energy cosmic rays and neutrinos. Thus understanding their characteristics is important. In this study, we explored the gain of LPDA (model CLP5130-2) which is used in several contemporary radio neutrino experiments and is planned to be used for IceCube Gen2 Radio. Various tests were carried out in the anechoic chamber at the University of Kansas and a simplified method was developed for calculating the gain of any antenna from the anechoic chamber data.