Investigation of a patch antenna based on I-shaped left-handed material |
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Authors: | Xue-Hua Song Ting-Gen Shen Yue-Qun Zhou |
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Affiliation: | a Department of Telecommunication, JiangSu University, Zhenjiang 212013, PR China b Department of Physics, JiangSu University, Zhenjiang 212013, PR China |
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Abstract: | The paper investigated a patch antenna based on I-shaped left-handed materials by using the method of finite difference time domain (FDTD). The results show that there exists a wave resonance state at 6.7 GHz, where the real part of the permittivity and permeability are all negative; the effect has largely enhanced the electromagnetic wave's resonance intensity, and has improved the localized extent of electromagnetic energy obviously in such medium, resulting in a higher antenna gain, a lower return loss, and a better improvement of the antenna's characteristics. Due to such advantages, the applications of patch antennas can be extended to such fields as mobile communication, satellite communication, aviation, etc. |
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Keywords: | I-shaped left-handed material Patch antenna Return loss Gain |
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