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.
Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610209, Peoples R China
Xu, Huiliang,Zhao, Zeyu,Lv, Yueguang,et al. Metamaterial superstrate and electromagnetic band-gap substrate for high directive antenna[J]. INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES,2008,29(5):493-498.