Leaky Characteristics of A New Omni-Directional Periodic Rod Antenna Gloved With A LHM Shell
A new omni-directional leaky-wave antenna is proposedInthe paper,which is consisted of circular rod corrugations gloved with a Left-handed Material (LHM) shell.The leaky characteristics of the new antenna are analyzed by improved perturbation method. The electromagnetic fields are describedInterms of a radial transmission-line network,which tremendously simplifies the analysis procedure with good calculation accuracy and brings considerable physical insight into the overall behavior of the dielectric grating antenna. The case where the n=-1 space harmonic of TE01 mode radiating into the space is carefully investigated,it is demonstrated that the gloved cylindrical LHM shell greatly enhances the leaky strength of the antenna. As a result,the dimension of the antenna could be largely reduced keeping the radiation efficiency unchanged,which is of practical significance for some applications.
Yongmei Pan Shanjia Xu
Department of Electronics Engineering and Information Science,University of Science & Technology of China,Hefei,P.R.China,230027
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
1829-1832
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）