Approximate calculation methods for pulse radiation of a TEM-horn array

Simple approximate calculation methods of pulse radiation by a TEM-horn array are suggested. The first one is based on substitution of the radiation field of each horn to a system of V-antennas; the currents in all of these are equivalent to a single horn current distribution. The second one is based on Huygens-Kirchhoff method applied for time domain. The experimental investigation of radiation field by the array and comparison with results calculated have been carried out.