A novel microstrip antenna with dendritic-structured negative permeability metamaterials

作者：Zhu Zhong Kui; Lou Chun Rong; Zhao Xiao Peng^*

来源：Acta Physica Sinica, 2009, 58(9): 6152-6157.

• dendritic structure
• microstrip antenna
• negative permeability
• gain

Based on electromagnetic characteristic of metallic dendritic cell, negative permeability metamaterial composed of periodic arry of metallic dendritic cells is fabricated. A 2.64 GHz microstrip antenna with dendritic structure is proposed. The results show that compared with the conventional microstrip antenna, the performance of the novel microstrip antenna with dendritic-structured negative permeability metamaterial has been improved remarkably. The 3-dB beam width of E-and H-plane can be reduced by 18 degrees and 13 degrees, respectively. The directional property of the antenna is enhanced, the gain is improved by 2.19 dB and the efficiency is increased by 65%. It proves that the performance of the microstrip antenna is improved by using negative permeability metamaterial as the substrate.

• 出版日期2009-9
• 单位西北工业大学