一种射频放大器上电时序及偏置点控制方法

doi:10.16180/j.cnki.issn1007-7820.2021.02.001

电子科技 ›› 2021, Vol. 34 ›› Issue (2): 1-6.doi: 10.16180/j.cnki.issn1007-7820.2021.02.001

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一种射频放大器上电时序及偏置点控制方法

何强,杨青慧,张怀武

电子科技大学电子薄膜与集成器件国家重点实验室,四川成都 610054

收稿日期:2019-11-07 出版日期:2021-02-15 发布日期:2021-01-22
作者简介:孙慧霞(1983-),女,博士,副教授。研究方向:雷达信号处理、水声信号处理。|何强(1994-),男,硕士研究生。研究方向:射频微波、超高速器件与电路。|杨青慧(1979-),女,博士,教授。研究方向:液相外延及微波毫米波器件。
基金资助:
教育部产学合作协同育人项目(201802082014);山西省高校科技创新项目(20171109);山西省高等学校教学改革研究项目(J2018169);运城学院教学改革创新项目(JG202002);运城学院教学改革创新项目(JG202015);运城学院教学改革创新项目(JG202016);国家自然科学基金(61021061);国家自然科学基金(51272036);国家自然科学基金(51472046);国家自然科学基金(51002021);国家自然科学基金(61131005);国际合作基金(2012DFR10730);国际合作基金(2013HH0003)

A Control Method of Power up Bias Sequence of Radio Frequency Amplifier

HE Qiang,YANG Qinghui,ZHANG Huaiwu

State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China

Received:2019-11-07 Online:2021-02-15 Published:2021-01-22
Supported by:
Industry-University Cooperation Collaborative Education Project of Ministry of Education(201802082014);Science and Technology Innovation Project of Universities in Shanxi Province(20171109);Research Project on Education Reform of Universities in Shanxi Province(J2018169);Teaching Reform Innovation Project of Yuncheng University(JG202002);Teaching Reform Innovation Project of Yuncheng University(JG202015);Teaching Reform Innovation Project of Yuncheng University(JG202016);National Natural Science Foundation of China(61021061);National Natural Science Foundation of China(51272036);National Natural Science Foundation of China(51472046);National Natural Science Foundation of China(51002021);National Natural Science Foundation of China(61131005);International Cooperation Foundation of China(2012DFR10730);International Cooperation Foundation of China(2013HH0003)

摘要/Abstract

摘要：

射频放大器存在上电时序复杂且延时不精确,偏置点不易达到器件要求的问题。针对该问题,文中提出了一种基于STM32F302K8的射频放大器上电时序及偏置点控制的方法。通过单片机IO控制电源芯片上电,中断程序精确延时,保证射频放大器HMC637漏极电源和栅极电源按顺序上电。根据ADC采样偏置电流,采用DAC调节HMC637栅极电压,使得偏置电流达到要求值。测试结果表明,文中设计的方案可实现HMC637各电源按程序所设6 ms间隔顺序上电。调节栅极电压使偏置电流达到目标值400 mA,偏置流程完全符合器件要求。此外,该方案不受器件工艺等因素影响,具有自适应性,应用前景广阔。

关键词: MATLAB GUI, 数字信号处理, 仿真平台, 卷积, CZT, FFT, 功率谱, IIR, FIR, 自适应滤波, 射频放大器, STM32, 上电时序, 偏置电流, ADC, DAC

Abstract:

The RF amplifier has the problems of complicated power-on sequence and inaccurate delay, and the bias point is not easy to meet the requirements of the device. To solve these problems, a method of controlling the power on timing sequence and bias point of RF amplifier based on STM32F302K8 is proposed in the present study. The method controlls the power chip to delay power-on by the microcomputer IO to ensure that the HMC637 drain power supply and the gate power supply are sequentially powered up.According to the ADC sampling bias current the DAC is used to adjust the HMC637 gate voltaget to make the bias current reach the required value. The test results show that the proposed method can realize the power-on sequence of each power supply at intervals of 6 ms, and adjust the gate voltage of HMC637 to make the bias current reach the target value of 400 mA, which fully meets the requirements of the chip. Additionally, the design is not affected by the device technology, and has self-adaptability and broad application prospect.

Key words: MATLAB GUI, digital signal processing, simulation platform, convolution, CZT, FFT, power spectrum, IIR, FIR, adaptive filter, RF amplifier, STM32, power up sequence, bias current, ADC, DAC

中图分类号:

TN911.72

何强,杨青慧,张怀武. 一种射频放大器上电时序及偏置点控制方法[J]. 电子科技, 2021, 34(2): 1-6.

HE Qiang,YANG Qinghui,ZHANG Huaiwu. A Control Method of Power up Bias Sequence of Radio Frequency Amplifier[J]. Electronic Science and Technology, 2021, 34(2): 1-6.

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一种射频放大器上电时序及偏置点控制方法

A Control Method of Power up Bias Sequence of Radio Frequency Amplifier

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