Abstract
The measuring method of impulse electromagnetic field by Half TEM Horn elctoromagnetic fieid generator (EM generator) and Half TEM Horn electoromagnetic field detector (EM detector) was proposed. The impulse electromagnetic field is generated between the ground plane and element of EM generator and is detected by EM detector inserted in EM generator. As a result of the TDR experiment of EM generator and EM detector, the characteristic impedance from the input to the aperture was fixed 50Ω. As a result of the experiment of impulse (Amplitude 160mV, Pulse width 63ps) response, the received electric power was proportional to the cross section of the aperture of the EM detector and the received pulse width was almost invariable to the cross section of the aperture of the EM detector. This method enables the measurement which decreases the amplitude without changing the pulse width of strong impulse electromagnetic field due to the discharge such as ESD.
