METHOD FOR FORMING A DIRECTIONAL DIAGRAM Russian patent published in 2022 - IPC G01S3/80 

FIELD: antenna technology.

SUBSTANCE: invention relates to antenna technology and is intended for constructing a narrow radiation pattern in receiving phased antenna arrays. Essence: in the method, a signal is received by means of an antenna array, if necessary, narrowing the radiation pattern in the horizontal plane, the left R_L and right R_R rays of the radiation pattern are formed, the S_LR sum beam is calculated as the sum of the modules of the left R_L and right R_R rays in the form of S_LR=a|R_L|+b|R_R|, where a+b=2, the D_LR difference beam is calculated as the difference of the modules of the left R_L and right R_R rays in the form of D_LR =|R_L-R_R|, after which the narrowed beam is calculated in the horizontal plane R_LR in the form , where 0<n<2. If it is necessary to narrow the radiation pattern in the vertical plane, the upper R_U and lower R_B rays of the radiation pattern are formed, the S_UB sum beam is calculated as the sum of the modules of the upper R_U and lower R_B rays in the form of S_UB=а'|R_U|+b'|R_B|, where a'+b'=2, the D_UB difference beam is calculated as the modulus of the difference of the upper R_U and lower R_B rays in the form of D_UB=|R_U-R_B|, after which the narrowed beam R_UB in the vertical plane is calculated in the form , where 0 <m<2. In the case of the narrowing of the radiation pattern in both planes the resulting radiation pattern is found as , where 0<q<∞, 0≤с≤2, 0≤p≤2, с+р=2 or as , where 1≤g≤2. In the case of the narrowing of the radiation pattern in the horizontal plane, the left and right rays of the radiation pattern are formed, proceeding from the required direction of the narrowed beam in the horizontal plane θ₀, respectively, in the directions θ₀-θ_н/2 and θ₀+θ_н/2 by the weight summation of the outputs of all elements of the antenna array, while θ_н is the angle of spacing between the beams. In the case of the narrowing of the radiation pattern in the vertical plane of the upper and lower rays of the radiation pattern is formed, proceeding from the required direction of the narrowed beam in the vertical plane ϕ₀, directions ϕ₀+ϕ_V2 and ϕ₀-ϕ_V2 by weighted summation of the outputs of all elements of the antenna array, while ϕ_V is the angle of spacing between the beams. To form a multbeam radiation pattern with narrowed beams, an appropriate number of pairs of beams are formed for a linear configuration of the antenna array, and for a flat configuration of the antenna array, an appropriate number of left, right, upper and lower beams are formed from which the narrowed resulting beams are formed.

EFFECT: increase in the gain of the antenna array due to the use of the entire area of the antenna array to form a radiation pattern.

1 cl, 1 dwg