Abstract
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° and 13°, 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.
| Original language | English |
|---|---|
| Pages (from-to) | 6152-6157 |
| Number of pages | 6 |
| Journal | Wuli Xuebao/Acta Physica Sinica |
| Volume | 58 |
| Issue number | 9 |
| State | Published - Sep 2009 |
Keywords
- Dendritic structure
- Gain
- Microstrip antenna
- Negative permeability
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