METHOD OF GENERATING TWO TRANSCEIVING DP IN AN ANTENNA OF CIRCULAR ELECTRONIC SCANNING Russian patent published in 2020 - IPC H01Q21/00 

FIELD: antenna equipment.

SUBSTANCE: invention relates to the antenna equipment. Method is based on arrangement on the cylindrical surface of the antenna emitters, combined along the cylinder generatrix in equidistantly arranged lines of radiators, forming identical directional patterns (DP), determining the size of the angular sector of the arrangement of the emitter arrays for any direction of an antenna beam, extracting N active emitter arrays inside this angular sector, supplying a microwave signal to them by means of electronic switching, and flat field radiation by means of electronic control of the introduced phase shift of microwave signals passing through the emitters, as a result of which total antenna of the circular electronic scanning antenna is formed. To ensure pairwise coaxiality of generated transceiving DP in circular sector of electronic scanning for transmission: angular sectors are selected for any directions ϕ₀₁ and ϕ₀₂ so that between them there are K lines of passive radiators, where K≥1, for each angular sector N₁ and N₂ active lines of emitters are selected, respectively, wherein phase shifts Δψ_i1 are determined for N₁ active lines of emitters and Δψ_i2 for N₂ active lines of emitters for generating first and second beam patterns for transmission, generating for transmission two spaced apart in beam and emitting in directions ϕ₀₁ and ϕ₀₂ microwave signal. Receiving: received by each ruler of active radiators microwave signal is splitted into two signals identical in modulus and phase – first (A'_i) and second (A"_i), determining phase shifts Δψ_i1 for N₁ active lines of emitters and Δψ_i2 for N₂ active lines of emitters, providing summation of signals A'_i and zeroing of signals A"_i for formation of first receiving DP in N₁ lines of active radiators and providing zeroing of signals A'_i and summation of signals A"_i for formation of the second receiving radiation pattern in N₂ lines of active radiators, by changing phases of summable signals to certain phase shifts Δψ_i1 and Δψ_i2, wherein directions of emitted and received beams coincide in pairs.

EFFECT: providing pairwise coaxiality of generated receiving-transmitting DPs.

1 cl, 2 dwg