INPUT DEVICE OF RADIO RECEIVER SET Russian patent published in 2012 - IPC H03H7/09 H04B1/18 

FIELD: radio engineering.

SUBSTANCE: input device of radio receiver set includes M channels, additional cartridge of discrete capacitors, which contains input and output potential buses and P sections, each of which includes three capacitors the first outputs of which are connected to each other; to the second output of the first capacitor there connected is movable contact of the first switching element the fixed contact of which is connected to input potential bus of the cartridge of discrete capacitors; to the second output of the second capacitor there connected is movable contact of the second switching element the fixed contact of which is connected to output potential bus of cartridge of discrete capacitors; the second output of the third capacitor is connected to common bus; at that, each channel includes input and output bipole made in the form of inductance coil, switching elements and additional capacitor.

EFFECT: increasing the number of pass bands in each channel.

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