| 摘要 |
FIELD: radio engineering. ^ SUBSTANCE: invention relates to radio engineering, particularly to monopulse aerial designs. Proposed monopulse aerial comprises four waveguide channels, each comprising square-section waveguide radiator, polariser allowing operation on waves with circular polarisation, and waveguide of the channel with two exciting waveguides. It has the first cumulative-differential unit of excitation with one input that operates in transmitting mode and including three double waveguide T-couplers, and second cumulative-differential unit of excitation operating in receiving mode and comprising four double waveguide T-couplers. Three outputs of the latter generate cumulative and two differential signals in two orthogonal planes. Note here that four waveguides of the fist and second cumulative-differential unit of excitation are connected with the first and second exciting waveguides of channels, respectively. Four waveguide radiators and four polarisers represent one or two units. First cumulative-differential unit of excitation and four waveguide channels with the first exciting waveguides represent integrated first E-plane waveguide assembly. Four waveguide of the channels with the second exciting waveguides and three double waveguide T-couplers of the second cumulative-differential unit of excitation represent integrated second E-plane waveguide assembly. Fourth double waveguide T-coupler of the second cumulative-differential unit of excitation represents the third E-plane waveguide assembly. ^ EFFECT: polariser allowing operation on waves with circular polarisation, simpler design, ease of manufacture and assembly. ^ 3 cl, 11 dwg |
