A COMPARISON OF ELECTRIC FIELD-STRENGTH STANDARDS FOR THE FREQUENCY-RANGE OF 30-1000 MHZ

Published results about site attenuation and transmission loss measure ments as well as antenna factor calculations and calibrations are summ arized, The antenna types discussed are precision dipoles, a microstri p patch antenna, open-ended waveguides, and horn antennas as well as T EM-cells, The best values for agreement between theory and experiments that were reported for the transmission losses were in the range of 0 .25-0.4 dB, An experimental comparison between precision reference dip oles and a TEM-cell that was performed in the Seibersdorf calibration laboratory is described with deviations of no more than 0.15 dB in the antenna factor or field-strength.