X波段柱面共形基片集成波导纵向缝隙天线阵的实验  

Design and measurement of substrate integrated waveguide longitudinal slot array conformal antennas on cylindrical geometries

作　　者：张颖松[1] 洪伟[1] 

机构地区：[1]东南大学毫米波国家重点实验室

出　　处：《解放军理工大学学报（自然科学版）》2008年第1期6-10,共5页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60621002)

摘　　要：利用基片集成波导SIW(substrate integrated waveguide)技术设计了一款X波段柱面共形的SIW纵向缝隙谐振天线阵。通过分析柱面共形的SIW的传输特性,沿用传统矩形波导谐振缝隙天线阵的设计方法,设计了柱面共形的SIW纵向缝隙谐振天线阵。该天线具有传统的矩形波导缝隙天线阵主瓣宽度窄、方向图可以赋形、交叉极化电平低等优异特性,同时实现了天线的小型化、轻型化。由于基片集成波导完全集成于介质基片中,使得天线与平面电路的馈电连接变得非常简单,可以用微带直接馈电,减少了中间馈电电缆以及馈电转接头的损耗,从而使天线和平面电路的集成也成为可能。实验结果验证了这种设计方法的正确性。By etching longitudinal slots on the top metallic surface of the substrate integrated waveguide（SIW）,an integrated slot-array conformal antennas on cylindrical geometries was proposed.The propagation characteristics of the SIW on cylindrical geometries were investigated firstly.With the aid of normal rectangular waveguide theory,an resonant rectangular waveguide slotted array conformal antenna on cylindrical geometries was designed.The whole antenna and feeding circuit were fabricated on a single substrate,which takes the advantages of small size,low profile,low cost,and integrability with plate microwave circuit and simple manufacturing,etc.A one-by-ten SIW slot array antenna at X-band was simulated with the simulation software CST.The design process and experimental results were presented.The simulation results and the experimental results agree with each other exactly.

关 键 词：柱面共形 基片集成波导 缝隙阵天线 

分 类 号：TN817[电子电信—信息与通信工程]