This article includes equations, allowing of acquiring the directional lobes of Vivaldi Antenna depending on the base width of radiation pattern and frequency band.

Authors received statistical information dependents of Antenna VSWR (Voltage Standing Wave Ratio) for the base width from its geometrical sizes, the schedule of frequency dependent from the antenna size have been given. Further, in dependence on geometry of antenna, they received VSWR with constant frequency from width of the pattern, there also was performed the schedule of dependent width pattern from Antenna parameters of geometry.

The equations for construction of bent petals of Vivaldi in dependence on the desirable width of the pattern, and the band center with fivefold coverage of frequency band, were acquired. Calculation for random frequency and width of the pattern was given and the antenna for set-up parameters was constructed.