FORMATION METHOD OF DIRECTIVITY DIAGRAM IN ANTENNA SYSTEM WITH ELECTRONIC CONTROL OF BEAM Russian patent published in 2010 - IPC H01Q3/00 

FIELD: radio engineering.

SUBSTANCE: formed narrow-beam directivity diagram at fixed frequency scans in the specified sector, and weakly directional directivity diagram covering as to the level the lateral radiation of narrow-beam scanning directivity diagram at its any position in scanning sector remains fixed; some part of microwave signal received with narrow-beam directivity diagram is branched, its level and phase is set so that at further summation of this branched microwave signal with microwave signal received with weakly directional directivity diagram in the resulting directivity diagram of weakly directional antenna there can be formed the null in the direction of axis of narrow-beam directivity diagram. At that, at changing the angular position of beam of scanning narrow-beam directivity diagram in the scanning sector and/or operating frequency for formation of null in the resulting directivity diagram of weakly directional antenna there additionally changes is amplitude and phase of branched microwave signal.

EFFECT: decreasing the level of compensating directivity diagram in antenna system with electronic control of beam at any frequency in working frequency range.

1 dwg