X波段低副瓣波导缝隙阵列天线设计
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摘要
设计了一种X波段窄边波导缝隙阵列天线。基于商业软件仿真得到开缝波导谐振时的S21,并以此计算出辐射缝隙的电导值,设计出具有幅度泰勒分布的波导缝隙阵列。该天线采用端馈的同轴波导变换器和内置的吸收负载,结构简单,质量轻,线源的安装采用背部螺钉固定的方式,正面无固定块遮挡,试验阵在8%频带范围实测驻波小于1.2,方位面最大副瓣电平小于-32 dB。
An X-band narrow-edge waveguide slot array antenna is designed. Based on the commer-cial software simulation, the S21 of the slotted waveguide resonance is obtained, the conductancevalue of the radiating slot is calculated, and the waveguide slot array is designed with the amplitudeTaylor distribution. The antenna adopts the end-fed coaxial waveguide converter and the built-in ab-sorption load with simple structure and light weight. The line source is fixed with the back screws,and there are no fixed blocks on the front side. The measured VSWR is lower than 1.2 at the band-width of 8% and the maximum SLL in the azimuth plane is lower than-32 dB.
An X-band narrow-edge waveguide slot array antenna is designed. Based on the commer-cial software simulation, the S21 of the slotted waveguide resonance is obtained, the conductancevalue of the radiating slot is calculated, and the waveguide slot array is designed with the amplitudeTaylor distribution. The antenna adopts the end-fed coaxial waveguide converter and the built-in ab-sorption load with simple structure and light weight. The line source is fixed with the back screws,and there are no fixed blocks on the front side. The measured VSWR is lower than 1.2 at the band-width of 8% and the maximum SLL in the azimuth plane is lower than-32 dB.
引文
[1]邱磊.波导窄边缝隙阵分析与设计[D].国防科学技术大学工学硕士学位论文,2008.
[2]张祖稷,金林,束咸荣.雷达天线技术[M].北京:电子工业出版社,2005:201.
[3]邵特.船舶雷达天线的设计与分析[D].大连海事大学硕士研究生学位论文,2016.
[4]汪凯.C波段窄边缝隙天线设计[D].电子科技大学硕士学位论文,2007.
[5]谢科.数字阵列天气雷达低副瓣天线设计[J].现代电子技术,2015,38(12):20-22.
[2]张祖稷,金林,束咸荣.雷达天线技术[M].北京:电子工业出版社,2005:201.
[3]邵特.船舶雷达天线的设计与分析[D].大连海事大学硕士研究生学位论文,2016.
[4]汪凯.C波段窄边缝隙天线设计[D].电子科技大学硕士学位论文,2007.
[5]谢科.数字阵列天气雷达低副瓣天线设计[J].现代电子技术,2015,38(12):20-22.