【作者】 张培真； 魏兵； 李晓亮； 高雷； 张辉； 徐良；

【Author】 Peizhen Cheung;Bing Wei;Xiaoliang Lee;Lei Gao;Hui Cheung;Liang Xu;Xidian University;Hebei University of Engineering;Xi’an Starnet Anetenna Technology Co.,Ltd.;

【机构】 西安电子科技大学； 河北工程大学； 西安星网天线技术有限公司；

【摘要】 本文提出一种工作在短波频段的动态海水天线,采用加载磁生材料和LC匹配网络实现谐振特性。利用HFSS对该天线进行了等效建模与分析,结果显示,天线中心工作频率为20 MHz,阻抗带宽(VSWR≤3.0:1)为6.4 MHz,最大增益为-1.34 dBi。实物测试中,静态时谐振频率约为18.5 MHz,相对应阻抗带宽为6.4 MHz,增益为-2.3 dBi。动态时谐振频率约为19.2 MHz,相对应阻抗带宽为1.8 MHz,增益为-4.5 dBi。相较于传统短波天线,海水天线具有低可探测性和快速部署能力,该天线在舰船载通信、海上无人系统等场景具有工程化潜力。更多还原

【Abstract】 This article proposes a dynamic seawater antenna operating in the HF band,which utilizes loaded magnetic materials and LC matching network to achieve resonance characteristics.The antenna was modeled and analyzed using HFSS,and the results showed that the center operating frequency of the antenna was 20 MHz,the impedance bandwidth(VSWR≤3.0:1)was 6.4 MHz,and the maximum gain was-1.34 dBi.In physical testing,the static resonant frequency is about 18.5 MHz,corresponding to an impedance bandwidth of 6.4 MHz and a gain of-2.3 dBi.The dynamic resonant frequency is about 19.2 MHz,corresponding to an impedance bandwidth of1.8 MHz and a gain of-4.5 dBi.Compared to traditional HF band antennas,seawater antennas have low detectability and rapid deployment capabilities.This antenna has engineering potential in scenarios such as shipborne communication and unmanned systems at sea.更多还原