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基于树枝状金属结构单元模型的电磁特性,设计了一种双面刻有树枝状金属结构单元阵列的负磁导率介质材料,并将这种介质材料作为微带天线的基板,制备了中心工作频率为2.64 GHz的树枝状负磁导率材料微带天线.仿真和测量结果都表明:相比普通微带天线,树枝状负磁导率材料微带天线的性能得到了明显改善,定向性得到了提高,E面和H面的3 dB角分别收缩了18°和13°,增益提高了2.19 dB,相当于有效辐射功率提高了65%.说明利用负磁导率材料作为微带天线的基板,可以明显改善微带天线的性能.
Based on the electromagnetic properties of the dendritic metal structure unit model, a negative permeability medium material with a dendritic metal structure unit array on both sides is designed. The dielectric material is used as the substrate of the microstrip antenna to prepare the center work The frequency of 2.64 GHz dendritic negative permeability material microstrip antenna simulation and measurement results show that: compared to ordinary microstrip antenna, dendritic negative permeability material microstrip antenna performance has been significantly improved, the orientation obtained , The 3 dB angle of E-plane and H-plane shrunk by 18 ° and 13 °, respectively, and the gain increased by 2.19 dB, which is equivalent to an increase of 65% of the effective radiated power. This shows that the use of negative permeability material as the substrate of the microstrip antenna , Can significantly improve the performance of the microstrip antenna.