Enhancement of Directivity of Source Radiation Using Parabolic Cylinder Made of Left-handed Metamaterials
We explore radiation of a line source witbin a parabolic cylinder made of left-handed metamaterials. Tbe far field radiation patterns show the metamaterial parabolic cylinder can enhance the directivity of the line source radiation. It is found that the focal length and tbe feature length of the parabola affect the directivity. Further improvement of the directivity is realized by changing the shape of parabolic end by a metallic circular arc, which also reduces the total size of the parabolic cylinder. Finally, we compared the backscattering cross section (BCS) between the traditional parabolic reflector and the proposed parabolic cylinder with the same size and found the parabolic cylinder had much less BCS.
Da-yong Zou Rui-xin Wu Ping Chen Min Liu
Department of electronic sciences and engineering, Nanjing University Nanjing 210093, China
国际会议
成都
英文
176-179
2010-05-08（万方平台首次上网日期，不代表论文的发表时间）