RECEIVE MULTIBEAM ACTIVE PHASED ANTENNA ARRAY Russian patent published in 2009 - IPC H01Q3/36 

FIELD: physics.

SUBSTANCE: device includes M number of irradiators, where M=2, 3, 4,…, guidance block, M number of receive channels, beam adders, narrow-band low-pass zonal filters and target amplifiers. Each receive channel contains the low-pass zonal filter, the first and second stages of the low-noise amplifier, a N-channel divider of power and phase shifters. Inlets of all phase shifters are joined to outputs of corresponding N-channel divider of power, and outputs - with corresponding inlets of beam adders. Each of M of the receive channels is supplied by the additional low-pass zonal filter mounted after the first stage of the low-noise amplifier, and narrow-band low-pass zonal filters and target amplifiers are mounted on an exit of the corresponding beam adders.

EFFECT: filtration allocation to inlet of receive channel, decrease in number of narrow-band low-pass zonal filters and target amplifiers at improvement of noise performances of antenna and simultaneous maintenance of noise immunity of the receive path.

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