Electrically large loop antenna for receiving UWB pulsed fields

The causes of afterpulse current oscillations in electrically large loop antennas have been found basing on the analysis of results of simulation of the space-time current distribution induced by electric and magnetic field components in the circular and rectangular loops. It has been determined that the pulse shape distortion is due to the current induced by the electric component of the incident field. For undistorted reception, it is necessary to isolate only the current induced by the magnetic component from the total current. To do this, it is sufficient to sum the currents induced in diametrically opposite sections of the circular loop. It has been found experimentally that undistorted reception can be ensured by summing the signals recorded in diametrically opposite sections of the circular loop.