公开(公告)号：US3680004A

公开(公告)日：1972-07-25

申请号：US3680004D

申请日：1970-10-19

Applicant: THOMSON CSF

Inventor： POUSSIN ANTOINE

IPC: H03D7/16 ,  H03F3/24 ,  H03C3/08

CPC classification number: H03F3/24 ,  H03D7/16

Abstract: In a circuit for translating to a variable carrier frequency an input signal with a fixed carrier frequency, comprises said signal at said variable frequency, the linearity of the amplifier being obtained by means of a negative feedback loop between the output of the amplifier and of the signal input of the frequency converter and this feedback loop including a frequency converter for re-translating the feedback signal to the frequency of the input signal, the variable phase-shifter ensuring the addition in phase opposition, in an adder, of the input signal and of the feedback signal is inserted between this adder and the frequency converter feeding the amplifier. This location of the phase-shifter causes the gain of the circuit to be substantially independent of the variable frequency which is used. In addition the phase-shifter is automatically controlled.

Abstract translation: 在用于将具有固定载波频率的输入信号转换为可变载波频率的电路中，包括在所述可变频率处的所述信号，放大器的线性度通过放大器的输出和 该反馈回路包括用于将反馈信号重新转换为输入信号的频率的频率转换器，该可变移相器确保在加法器中相位相反的输入信号和 反馈信号插入在该加法器和馈送放大器的变频器之间。