RU2008125923A

RU2008125923A - PHASE COMPENSATION PRESELECTOR - MIXER OF THE RADIO SIGNAL RECEIVER

Info

Publication number: RU2008125923A
Application number: RU2008125923/09A
Authority: RU
Inventors: Анатолий Алексеевич Волков (RU); Анатолий Алексеевич Волков; Ирина Анатольевна Волкова (RU); Ирина Анатольевна Волкова
Priority date: 2008-06-26
Filing date: 2008-06-26
Publication date: 2010-01-10
Also published as: RU2388145C2

Abstract

Фазокомпенсационный преселектор - смеситель приемника радиосигналов, состоящий из усилителя радиочастоты (УРЧ), двух смесителей, гетеродина, фазовращателя на 90°, фазоинвертора, сумматора, фильтра сосредоточенной селекции (ФСС), причем сигнальные входы обоих смесителей соединены между собой и подключены к выходу УРЧ приемника, а гетеродин своим выходом подключен ко второму входу первого смесителя непосредственно и ко второму входу второго смесителя через фазовращатель на 90°; к выходу сумматора подключен ФСС, отличающийся тем, что в него введены дополнительно два смесителя, гетеродин и фазовращатель на 90°, причем выход первого известного смесителя подключен к одному входу сумматора через первый введенный смеситель, а выход второго известного смесителя подключен к другому входу сумматора через последовательно включенные второй введенный смеситель и фазоинвертор; выход введенного гетеродина подключен к другому входу первого введенного смесителя непосредственно и к другому входу второго введенного смесителя через введенный фазовращатель на 90°.Phase compensation preselector is a radio signal receiver mixer, consisting of a radio frequency amplifier (URC), two mixers, a local oscillator, a 90 ° phase shifter, a phase inverter, an adder, a concentrated selection filter (FSS), and the signal inputs of both mixers are interconnected and connected to the output of the RF amplifier and the local oscillator with its output is connected directly to the second input of the first mixer and to the second input of the second mixer through a 90 ° phase shifter; FSS is connected to the output of the adder, characterized in that two additional mixers, a local oscillator and a 90 ° phase shifter, are introduced into it, the output of the first known mixer connected to one input of the adder through the first input mixer, and the output of the second known mixer connected to another input of the adder through sequentially included the second introduced mixer and bass reflex; the output of the introduced local oscillator is connected directly to the other input of the first introduced mixer and to the other input of the second introduced mixer through the introduced phase shifter by 90 °.

Claims

Phase compensation preselector is a radio signal receiver mixer, consisting of a radio frequency amplifier (URC), two mixers, a local oscillator, a 90 ° phase shifter, a phase inverter, an adder, a concentrated selection filter (FSS), and the signal inputs of both mixers are interconnected and connected to the output of the RF amplifier and the local oscillator with its output is connected directly to the second input of the first mixer and to the second input of the second mixer through a 90 ° phase shifter; FSS is connected to the output of the adder, characterized in that two additional mixers, a local oscillator and a 90 ° phase shifter, are introduced into it, the output of the first known mixer connected to one input of the adder through the first input mixer, and the output of the second known mixer connected to another input of the adder through sequentially included the second introduced mixer and bass reflex; the output of the introduced local oscillator is connected directly to the other input of the first introduced mixer and to the other input of the second introduced mixer through the introduced phase shifter by 90 °.