S频段阿基米德锥柱螺旋天线设计  

Design of S-band conical Archimedean spiral antenna

作　　者：黄振葵 邢斯瑞 沈晨阳 隋涛 安向东 Huang Zhenkui;Xing Sirui;Shen Chenyang;Sui Tao;An Xiangdong(Chang Guang Satellite Technology Co.,Ltd.,Changchun 130000,China)

机构地区：[1]长光卫星技术股份有限公司,吉林长春130000

出　　处：《电子技术应用》2024年第7期93-96,共4页Application of Electronic Technique

摘　　要：根据卫星S频段测控系统通信需求,设计了S频段宽频带高增益圆极化的阿基米德锥柱螺旋天线。通过四分之一波长同轴缝隙巴伦完成信号的平衡-不平衡转化以及宽带阻抗匹配。双臂阿基米德天线可以很好地提供圆极化特性,作为锥台的FR4材料除了为天线提供支撑,也有效地完成了增益与波束宽度的控制。实测天线在收发频段内驻波比小于1.5,±70°范围内增益大于0 dBi,轴比小于5 dB,可有效地实现测控天线的收发复用功能。According to the communication requirements of the satellite S-band Tracking,Telemetry and Command system(TT&C),a conical Archimedean spiral antenna with wideband and high gain circular polarization is designed for the S-band.The quarter-wavelength coaxial slotted balun completes the balance-unbalance conversion of the signal and wideband impedance matching.The dual-arm Archimedean antenna can provide good circular polarization characteristics,and the FR4 material as a cone not only provides support for the antenna,but also effectively achieves the control of gain and beamwidth.The measured antenna has a Voltage Standing Wave Ratio(VSWR)of less than 1.5,a gain of more than 0 dBi within±70°and an axial ratio of less than 5 dB in the transceiver frequency band,which can effectively realize the transceiver multiplexing function of the TT&C antenna.

关 键 词：宽带 圆极化 螺旋天线 同轴缝隙巴伦 

分 类 号：TN82[电子电信—信息与通信工程]