罗兰-C小型有源接收天线设计与仿真  

The design and simulation of a small active Loran-C receiving antenna

作　　者：刘杨 齐俊东 陈奇东[1] 黄晓 徐文璞 刘睿[1] LIU Yang;QI Jundong;CHEN Qidong;HUANG Xiao;XU Wenpu;LIU Rui(The China Research Institute of Radio-wave Propagation,Qingdao 266107,China;Military Representative Office of military representative Bureau of equipment development department of Central Military Commission in Zhengzhou,Zhengzhou 450000,China)

机构地区：[1]中国电波传播研究所,青岛266107 [2]装发军代局驻郑州地区军代室,郑州450000

出　　处：《全球定位系统》2022年第5期118-126,共9页Gnss World of China

摘　　要：针对罗兰-C无线电导航信号接收需求,研究一种高性能的罗兰-C小型有源接收天线,可以减小天线体积和安装难度,方便罗兰-C导航接收机的使用,具有较高的实用意义.天线主体采用磁棒线圈天线接收长波频段罗兰-C信号,在天线内设计了包含放大电路、带通滤波电路、差分输出电路和供电电路在内的前端信号调理电路,从而增大信号灵敏度,提高信噪比;设计了一体化的天线结构,以便工程化应用.通过仿真和实测结果表明:该天线在工作频带内,可以全向高效接收罗兰-C信号,而且对接收到的微弱罗兰-C信号进行放大并滤除带外噪声,信号强度和信噪比满足使用要求.该天线具有体积小、灵敏度高、使用方便的特点,可应用于罗兰-C无线电导航,组合导航、附加二次相位时延计算等场景.Aiming at the needs of Loran-C to receive radio navigation signals,a high-performance Loran-C small active receiving antenna is studied,which can greatly facilitate the use of Loran-C navigation receivers.It is of high practical significance to reduce the volume of the antenna to reduce the difficulty of installation.The main body of the antenna adopts a magnetic rod coil antenna to receive the Loran-C signal in the long-wave band.The front-end signal conditioning circuit including amplifier circuit,band-pass filter circuit,differential output circuit and power supply circuit is designed to increase signal sensitivity and signal-to-noise ratio;an integrated antenna structure is designed for engineering application.Simulations show that the antenna can efficiently receive Loran-C signals.It can amplify the weak Loran-C signal and filter out out-of-band noise,and the signal strength and signal-to-noise ratio meet the requirements.The antenna has the characteristics of small size,high sensitivity and convenient use,and can be used in Loran-C radio navigation,combined Navigation,additional secondary phase delay calculation and other scenarios.

关 键 词：罗兰-C 有源接收天线 磁天线 差分放大电路 滤波电路 

分 类 号：P228.4[天文地球—大地测量学与测量工程] TN827.2[天文地球—测绘科学与技术]