民用飞机高频通信系统阻抗匹配技术研究  

Research on impedance matching technology of HF communication system of civil aircraft

作　　者：赵健[1] ZHAO Jian(Shanghai Aircraft Design and Research Institute,Shanghai 201210,China)

机构地区：[1]上海飞机设计研究院,上海201210

出　　处：《民用飞机设计与研究》2024年第2期75-80,共6页Civil Aircraft Design & Research

摘　　要：高频通信系统,又称为短波通信系统,其工作频段为2.000 0~29.999 9 MHz。在通信方式和数据处理等软件设计中,高频通信系统同其他通信子系统一样走在科技发展的前沿,但诸如硬件设计尤其是天线设计和阻抗匹配的研究却很少,应用到民用飞机上的短波通信技术的研究更是少见。但为了实现向负载的最大传输功率以及改善噪声系数,阻抗变化又是十分必要的。首先介绍了高频通信系统的设备组成,然后重点介绍了系统的阻抗匹配流程以及天线调谐器内部电路组成,并简要介绍了阻抗匹配的工作原理和设计思路,旨在对高频通信系统的指标提升提供参考。The high frequency communication,also known as shortwave communication system,works in the frequency band of 2.0000 to 29.9999 MHz.In the design of software such as communication mode and data processing,HF communication system is at the forefront of scientific and technological development like other communication subsystems.However,there are few studies on hardware design,especially antenna design and impedance matching,especially on shortwave communication technology applied to civil aircraft.However,in order to achieve the maximum power transmission to the load and to improve the noise figure,it is important to change the impedance.Therefore,this paper first introduces the equipment composition of the HF communication system,then focuses on the impedance matching process of the system and the internal circuit composition of the antenna tuner,and then focuses on the working principle and design ideas of impedance matching,aiming to provide a reference for the index improvement of the HF communication system.

关 键 词：高频通信 阻抗匹配 史密斯圆图 天线调谐器 

分 类 号：V243.1[航空宇航科学与技术—飞行器设计]