摘要
设计了一款2-18GHz斜极化的全向天线,天线由一个超宽带水平全向的双锥天线和一个五层斜极化器构成。通过增加卷边结构以及优化双锥天线母线长度,改善了超宽带双锥天线低频增益不足和高频方向图裂瓣的现象,采用五层极化栅结构使辐射电场由垂直极化均匀的转换为45°斜极化。使天线在2-18GHz内电压驻波比(VSWR)小于2,不圆度小于3.5dB,0.89<|Eθ|/<1.15,165°∠AEθ-5φ<186°,具有良好的斜极化性能。
The article designed a 2-18GHz obliquely polarized omnidirectional antenna.The antenna consists of an ultra wideband horizontal omnidirectional biconical antenna and a five layer tilted polarizer.By increasing the curl structure and optimizing the bus length of the biconical antenna,the phenomenon of low-frequency gain deficiency and high-frequency pattern split of the ultra wideband biconical antenna is improved.The radiation electric field is uniformly converted from vertical polarization to 45°oblique polarization by using a five layer polarization grid structure.The VSWR is less than 2,roundness is less than 3.5db,0.89<|Eθ|/<1.15,165°∠AEθ-5φ<186°.It has good oblique polarization performance when the diameter is less than 186 degrees.
作者
徐瑶俊
樊雪婷
郭庆功
Xu Yaojun;Fan Xueting;Guo Qinggong(School of electronic information,Sichuan University,Chengdu Sichuan,610065)
出处
《电子测试》
2021年第10期13-15,共3页
Electronic Test
关键词
全向天线
超宽带
斜极化
双锥天线
omnidirectional antenna
Uwb
Oblique polarization
biconical antenna
