Test and measurement has been a bottleneck in researching electrostatic and electromagnetic protection.Aiming at test and measurement of the radiated field by ESD

it is proposed to express the bandwidth of ESD radiated field by effective bandwidths according to energy and dynamic range

and the effective bandwidths of the radiated field by ESD and the effect on bandwidths from rising time have been estimated numerically according to the ESD current waveform stipulated in the IEC61000-4-2.In terms of these analyses

a test measurement system of the radiated field by ESD has been developed successfully.Its measurement bandwidth is 3.5Hz~1GHz (within ±1.5db)

the measurable dynamic range is more than 60dB

and the sensitivity is adjustable.And more

the horizontal and vertical coupling E-field stipulated in the IEC61000-4-2 were measured by the test measurement system.