一种C波段宽带微带天线的设计与仿真

摘要

Considering the narrow bandwidth of microstrip antennas,some methods for widening their bandwidth are introduced,and a 2-layer broadband microstrip antenna is designed. CST MWS is used to simulate and optimize the antenna. The structure parameters are extracted from the simulation results. A comparison between the results of traditional microstrip antenna and the 2-layers microstrip antenna shows that the bandwidth and gain of the latter is enhanced effectively. It has good engineering application value in the study of broadband microstrip antenna array.%针对微带天线带宽窄的缺点，对展宽微带天线带宽的方法进行了简要介绍，设计了一种双层结构的宽带微带天线。应用CST MWS三维电磁场仿真软件对天线结构进行了仿真和优化，提取了天线的结构参数。并将常规微带天线的仿真结果与设计的双层结构微带天线的仿真结果进行了比较，从结果中可以看出，设计的双层结构微带天线可以有效地提高微带天线的宽带和增益，其在宽带微带天线阵列的研究中具有较好的工程应用价值。