电子科技大学学报2025，Vol.54Issue(2)：161-165,5.DOI:10.12178/1001-0548.2024017
超短波通信射频功放保护控制电路设计及应用
Design and application of RF power amplifier protection control circuit for ultrashort wave communication
周湘 1钟智勇 2杜培贤 3何放3
作者信息
- 1. 电子科技大学电子科学与工程学院,成都 611731||成都亚光电子股份有限公司,成都 610066
- 2. 电子科技大学电子科学与工程学院,成都 611731
- 3. 成都亚光电子股份有限公司,成都 610066
- 折叠
摘要
Abstract
In recent years,there has been a tendency to increase the output power of radio frequency(RF)to meet the demands of long-distance communication.RF power amplifiers,serving as the final stage of communication systems,are highly susceptible to damage due to their high power output.Given that power amplifiers are relatively expensive and delicate components,it is crucial to focus on protecting them during the design phase to prevent issues such as overheating,over-temperature,over-voltage,and overloading,which can lead to amplifier failure or malfunction.Combining with the practical engineering applications of RF power amplifiers in ultra-short wave communication,this paper designs and constructs the detection circuit and protection circuit of a composite power amplifier system,and studies their operational capabilities,respectively.The designed detection and protection circuits enable real-time monitoring of signals with pulse widths ranging from 50 µs to 110µs,corresponding to the duty cycle 4%to 30%,the circuit power response range-35 dBm to 0 dBm,and the switch insertion loss≤£2.6 dB.This circuitry has already been applied in the latest airborne equipment,demonstrating its positive impact on enhancing the reliability and lifespan of power amplifiers.关键词
功率放大器/保护电路/过脉宽/检测Key words
power amplifier/protection circuit/over pulse width/detection分类
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周湘,钟智勇,杜培贤,何放..超短波通信射频功放保护控制电路设计及应用[J].电子科技大学学报,2025,54(2):161-165,5.
