RECEIVER Russian patent published in 1998 - IPC

FIELD: radio communication. SUBSTANCE: proposed receiver can be used to receive information over communication channels with use of broadband signals. First antenna A1 is connected via high-frequency amplifier 1, mixer 2₁ to first input of high-frequency amplifier 3₁. Second antenna A2 is connected via high- frequency amplifier 1₂, mixer 2₂ to input of second intermediate frequency amplifier 3₂. Heterodyne 5 is connected with one output to second input of second mixer 2₂ and with second output is connected via phase inverter 4 to second input of first mixer 2₁. Output of intermediate frequency amplifier 3 of first channel is connected via former 6 of automatic gain control to second input of intermediate frequency amplifier 3 of second channel which output is connected to one of inputs of adder 8 whose second input is linked to output of intermediate frequency amplifier 3 of first channel. Output of intermediate frequency amplifier 3 of first channel is in addition connected to inputs of first key 9 and first detector 12. Output of first detector 12 is connected via maximum threshold device 13 to input of first former 14 of rectangular signal which output is connected to second inputs of first 9 and second 11 keys and to one of inputs of linear-frequency generator 15 which second input is connected via second former 18 of rectangular pulse , minimum threshold device 17 and second detector 16 to output of receiver. Output of intermediate frequency amplifier 3 is in addition connected via first key 9, OR gate 10 and phase detector ( discriminator ) 7 to output of intermediate frequency amplifier 3 of second channel. Output of linear-frequency generator 15 is connected to second input of second key 11. EFFECT: improved operational reliability. 3 dwg