摘要
为设计多频带GNSS天线且具有体积小、高增益、可重构、易于保密等特点的圆极化天线,提出一种频率可重构的液态金属锥形螺旋天线。天线可应用于卫星导航系统,包括GPS,GLONASS,BDS-2B1和BDS-1S系统。采用HFSS软件对天线进行设计与仿真,并利用仿真软件的优化功能对天线进行阻抗匹配,得到了良好的圆极化辐射和阻抗特性。仿真结果表明,天线在设计的两个频段内,增益大于3 dB,轴比均小于3 dB。因此,所提出的频率可重构的液态金属锥形螺旋天线具有非常广阔的应用空间。
A frequency-reconfigurable liquid metal conical helical antenna is proposed to design the multi.band GNSS antenna with small size,high gain,reconfigurable characteristic and easy secrecy.The antenna can be used in satellite navigation systems such as GPS,GLONASS,BDS-2B1 and BDS-1S.The HFSS software is used to design and simulate the antenna,and its optimization function is adopted to match the impedance of the antenna,so the perfect circularly polarized radiation and impedance characteristics of the antenna are obtained.The simulation results show that the gain is greater than 3 dB and the axial ratio is less than 3 dB of the antenna in the designed two frequency bands,and the proposed frequency.reconfigurable liquid metal conical helical antenna has wide application range.
作者
周芸
房少军
刘宏梅
王钟葆
ZHOU Yun;FANG Shaojun1;LIU Hongmei;WANG Zhongbao(College of Information Science and Technology,Dalian Maritime University,Dalian 116026,China;School of Physics and Electronic Technology,Liaoning Normal University,Dalian 116021,China)
出处
《现代电子技术》
北大核心
2019年第5期23-26,共4页
Modern Electronics Technique
基金
国家自然科学基金资助项目(61571075)
辽宁省教育厅一般项目(L201783648)~~
关键词
液态金属
螺旋天线
频率重构
GNSS天线
高增益
易保密
liquid metal
helical antenna
frequency reconfiguration
GNSS antenna
high gain
easy secrecy
