超宽带宽缝天线的设计与仿真  

The design and simulation of the ultra-wideband wide slot antenna

作　　者：钱坤[1] 庞伟正[1] 李翔麟[1] 邹喻[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2007年第10期21-23,共3页Applied Science and Technology

摘　　要：改进了一种基于宽缝微带天线结构的超宽带天线．利用Ansoft公司的HFSS对其进行了仿真计算，给出了反射损耗曲线和辐射方向图．该天线采用较低的介电常数（ε=2．2）和薄基板（h=0．8mm），获得了150％的阻抗带宽（S11≤-10dB），频率范围是1．40～9．69GHz．仿真结果和理论结果相符．A new uhra-wideband antenna is developed based on the wide slot microstrip antenna. The relevant simulation and calculation were performed by using HFSS of Ansoft Company. The reflection loss curve and the radiation patterns of this new antenna were given. It is found that ,when the relative pennittivity is lower （ε=2.2） and the substrate is thin （h =0.8mm）,the impedance bandwidth is approximately 150% （S11≤-10dB） and the frequency range is 1.40 - 9.69 GHz. The simulation results agree well with the theoretical results.

关 键 词：超宽带 宽缝微带天线 ANSOFT HFSS仿真 阻抗带宽 

分 类 号：TN822.8[电子电信—信息与通信工程]