Metamaterial Superstrate and Electromagnetic Band-Gap Substrate for High Directive Antenna
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A high directive planar antenna made from a metamaterial superstrate and an electromagnetic band-gap (EBG) substrate has been investigated. A patch antenna surrounded with EBG structures is used as the radiation source. The CST Microwave Studio is used for the simulation. The results show that the gain of the antenna with metamaterial is 21.6 dB at the operating frequency of 14.6 GHz. Compared with the patch feed with the same aperture size but without the metamaterial superstrate, the performance of the antenna is improved obviously and the gain increases about 12.4 dB.
KeywordsMetamaterials Electromagnetic band-gap (EBG) Patch antenna High directive antenna
This work was supported by 973 Program of China (No.2006CB302900) and National Natural Science Foundation of China (60507014 and 60678035). Authors would like to thank Dr. Yongqi Fu and Ms. Leilei Yang for their kind contribution for the work. In addition, authors would like to express their sincere gratitude to the CST China, for providing the evaluated soft for the simulation.
- 6.Fan Yang, EBG Structure and Reconfigurable Technique in Antenna Designs: Applications to Wireless Communications, Ph.D thesis, University of California, Los Angeles, 2002.Google Scholar