Signal amplitude control device with temperature compensating function

Abstract

The invention discloses a signal amplitude control device with a temperature compensating function, and relates to the signal control field of a communication radar system. The signal amplitude control device with a temperature compensating function includes an attenuator and a temperature compensating voltage source, wherein an output end of the temperature compensating voltage source is connected with a control end of the attenuator; and the temperature compensating voltage source detects the operating ambient temperature, converts different ambient temperatures into different control voltages and supplies the control voltages for the control end of the attenuator, so that the attenuator can keep constant attenuation in different ambient temperatures, because of the compensation effect of the temperature compensating voltage source. The signal amplitude control device with a temperature compensating function has the advantages of being simple in structure, being easy to implement, and being able to realize stable and accurate signal amplitude control without extra software control and artificial intervention.

Description

technical field [0001] The invention relates to the field of signal control of a communication radar system, in particular to a signal amplitude control device with a temperature compensation function. Background technique [0002] The application of high-performance directional communication system and phased array radar system in modern warfare is crucial. The multi-functional transceiver chip with amplitude and phase control functions located in the transceiver link is a key component for realizing high-precision directional communication systems and radar systems. The power and beam directivity of the transmitted signal of the whole system are realized by adjusting the specific signal amplitude and phase of each channel in the multiple signal channels in the system, and through power combining. [0003] As an important part of the multi-function transceiver chip, the attenuator plays a vital role in the precise control of the signal amplitude; the mainstream digital con...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a signal amplitude control device with temperature compensation function, and solve the inconvenience caused by the continuous adjustable voltage to provide the control signal and the attenuation of the attenuator itself with the prior art. The problem of changing the external environment temperature

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