TWO-DIMENSIONAL ELECTRONICALLY-CONTROLLED BEAM MONOPULSE PHASED ANTENNA ARRAY Russian patent published in 2015 - IPC H01Q25/00 

FIELD: radio engineering, communication.

SUBSTANCE: two-dimensional electronically-controlled beam monopulse phased antenna array comprises radiator panels, phase-changer units and a waveguide distribution system consisting of line-column dividers, each splitting microwave energy in one of the aperture quadrants, as well as a microwave adder which enables to form integral-difference beam patterns, wherein each aperture quadrant of the phased antenna array is broken down into four parts and each part in the waveguide distribution system has a column distributor and a line distributor, which feed separate radiating aperture elements of their part without violating regularity of the structure of the entire phased antenna array. To form multiple independently controlled beam patterns, each aperture quadrant is further broken down into 2ⁿ parts. Column distributors in each quadrant in adjacent parts are merged into pairs which are fed from newly added balance bridges and which form, together with the line distributors in the aperture of the phased antenna array, subarrays the number of which is equal to the number of pairs. Each newly added balance bridge, which feeds a pair of column distributors, is connected at one of the inputs through an adder, which couples analogue inputs of the balance bridges in each quadrant, to a microwave adder, and on the other input forms an independent input of each subarray.

EFFECT: wider instantaneous bandwidth, high resolution and enabling simultaneous formation of independently controlled beams.

2 cl, 1 dwg