METHOD OF ULTRA-WIDEBAND ELECTROMAGNETIC RADIATION ENERGY MEASUREMENT Russian patent published in 2019 - IPC G01R29/08 

FIELD: measurement.

SUBSTANCE: invention relates to the field of measurement of characteristics of ultra-wideband (UWB) electromagnetic radiation (EMR) and can be used for evaluation of efficiency of new types of generators of this type of radiation. In the UWB EMR energy measurement method, the UWB EMR electric field pulses intensity registration is performed in two mutually perpendicular planes by means of the UWB EMR generator oscillating system with subsequent transmission of the recorded data to the computer to obtain the electric field pulses intensity values. In missing points of space for determination of strength of pulses of electric field of UWB EMR, the following approximation is used: where E1 (θ, 0, t), E2 (θ, π, t), E3 (θ, π/2, t), E4 (θ, 3π/2, t) are measured dependences of electric field intensity from polar angle θ at values of azimuth angle ϕ= 0, π, π/2, 3π/2, respectively. UWB energy of EMR is calculated using expression where θi is angle between axis of radiation and direction to measuring transducer, Δθ - angular pitch of measurement positions, Ex, y (θi, ϕ, tk) is the electric field intensity at the i-th measuring position at time tk, R is the distance to the emitting system of the UWB generator EMR, Z is the wave resistance of the free space, n is number of measurement positions, Δt is the oscilloscope time sampling step, N is the number of measurement positions, K is the number of time discrepancies depending on the selected time window equal to the duration of the analyzed pulse.

EFFECT: technical result is increase in measurement accuracy, as well as possibility of UWB energy measurement EMR, including in form of single electromagnetic pulses, from generators with arbitrary shape of radiation pattern of their emitting systems.

1 cl, 1 dwg