M-CHANNEL FREQUENCY-SELECTIVE DEVICE Russian patent published in 2018 - IPC H03H7/01 H03K3/00 H04B1/18 

FIELD: wireless communications.

SUBSTANCE: invention relates to radio communication and can be used in radio receivers of the decameter wave band. M-channel frequency selective device comprises a common bus, an input potential terminal, to which an input of an input broadband filter is connected, an amplifying element, a group containing M output narrowband filters. Input broadband filter includes the inputs of a differential amplifier, in which a first subgroup containing M/2 output narrowband filters with odd numbers is connected to a first output, and a second subgroup containing M/2 output narrowband filters with even serial numbers is connected to a second output, in each group, the inputs of all filters are connected in parallel, the output of each filter is simultaneously the output of the device. Implementation of the input broadband filter and the generated channels is disclosed.

EFFECT: technical result consists in expanding the arsenal of technical means for the specified purpose.

1 cl, 3 dwg