空间电子技术2023，Vol.20Issue(6)：105-110,6.DOI:10.3969/j.issn.1674-7135.2023.06.014
高可塑性射频通道增益温度补偿电路构架研究
Research on high plasticity radio frequency channel gain temperature compensation circuit architecture
摘要
Abstract
A research on the gain temperature compensation circuit architecture of radio frequency channel with high plasticity in linear or compressed operating mode was introduced.An analog attenuator and a control circuit were contained in the compensation circuit,which was characterized by low power consumption,high integration and miniaturized.The dynamic range of the analog attenuator was about 20 dB,and it was located in the radio frequency link where the noise factor or output power was not affected.The control circuit was a pure resistance network,which consists of four thermistors with different positive and negative temperature coefficients and the resistance to be adjusted.After voltage regulation,the DC voltage was converted to a control voltage that varies with temperature through the resistance network.The control voltage was flexibly varied by temperature.Parabola,bowl shape,positive and negative L shape,positive and negative shape linear changes in a total of six trends were included in the voltage curve to meet the different requirements of gain stability of radio frequency channel which works in linear and compressed operating mode.In this paper,the principle of high plasticity radio frequency channel gain temperature compensation circuit architecture was analyzed,and the specific design process was presented.The circuit architecture was proved reasonable and effective by software simulation and real object.In the range of-5℃～55℃,the gain temperature stability of the satellite-borne C-band receiver is about 0.1 dB,reaching the international advanced level.关键词
增益温度补偿/高可塑性/嵌套组合/电阻网络/热敏电阻Key words
gain temperature compensation/high plasticity/nested combination/resistance network/thermistor分类
信息技术与安全科学引用本文复制引用
马美霞,于谨华,胡天存..高可塑性射频通道增益温度补偿电路构架研究[J].空间电子技术,2023,20(6):105-110,6.基金项目
国家重点实验室基金(编号:6142411232212) （编号:6142411232212）
