SHF RECEIVER Russian patent published in 2001 - IPC

FIELD: radio engineering, applicable in devices of communication facilities, as well as in complex radio-engineering devices with a wide band of operating frequencies. SUBSTANCE: the receiver has the first mixer (1), first SHF filter (2), second mixer (3) that are series-connected, as well as base unit (10), first and second local oscillators (11)(12) connected to the inputs of the third mixer (13), whose output is connected to the input of the power divider (14), second SHF filter (18) connected to the local oscillator input of the first mixer (1), third SHF filter (22) connected to the local oscillator input of the second mixer (3), it is featured by the fact that it uses series-connected fourth SHF filter (15), first amplifier (16) and first frequency multiplier by n (17) cut in between the first output of the power divider (14) and the input of the second SHF filter (18), series-connected fifth SHF filter (19), second amplifier (20) and second frequency multiplier by n (21) cut in between the second output of the power divider (14) and the input of the third SHF filter (22), and cut in between the output of the second mixer (3) and the input of the base unit (10) are the first SHF switch (4), second SHF switch (5); the first output of the first SHF switch (4) is connected to the first input of the second SHF switch (5), and the seventh SHF filter (9) cut in between the output of the second SHF switch (5) and the input of the base unit (10); series-connected between the second output of the first SHF switch (4) and the second input of the second SHF switch (5) are the sixth SHF filter (6) and the fourth mixer (7) connected to whose local oscillator input is the third local oscillator (8). EFFECT: improved spectrum function of phase noise power of local oscillator frequencies, reduced value of local oscillator frequencies varying in a reduced frequency band at a superwide frequency band of input signals, enhanced dynamic range of receiver. 1 dwg