A novel calculable loop antenna for antenna calibration verification below 30MHz

A novel calculable loop antenna is proposed for the purpose of the antenna calibration verification below 30MHz. The calculable loop is formed by connecting a balun with a metal bending wire. For a pair of such loop antennas, the site insertion loss (SIL) is obtained by combining the measured balun scattering (S)-parameter and the calculated method of moment(MoM) S-parameter of the site two-port network. The difference of the measured SIL and the calculated SIL are within 0.62dB over 600kHz to 30MHz. As the antenna factor can be derived accurately from the SIL, the proposed calculable loop can be treated as a standard antenna as well in the calibration.