A novel frequency-selective metamaterial to improve helix antenna

作     者：Iraj ARGHAND LAFMAJANI Pejman REZAEI 

作者机构：Department of Electrical and Computer EngineeringSemnan University 

出 版 物：《Journal of Zhejiang University-Science C(Computers and Electronics)》 (浙江大学学报C辑（计算机与电子（英文版）)

年 卷 期：2012年第13卷第5期

页      面：365-375页

核心收录：

学科分类：0810[工学-信息与通信工程] 080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Project (No.8711109001) supported by the Office of Brilliant Talents at Semnan University Iran 

主　　题：Antenna efficiency Negative permittivity Negative permeability Helix antenna Metamaterial 

摘      要：A novel frequency-selective metamaterial with negative permittivity and permeability for improving directivity and gain of a helix antenna is presented in this *** proposed metamaterial is composed of two Z-shape resonators printed on opposite sides of a dielectric *** forms of multilayered cells are found to be suitable for antennas and waveguides *** addition,a new method of designing a metamaterial-based helix antenna is presented with high directivity and gain.A comparison on radiation properties is given between the conventional and the new metamaterial-based helix *** comparisons on radiation properties are performed:(1) the effect of proposed Z-structure on monopole,dipole,and helix antennas;(2) the effect of OE3,split-ring resonator (SRR),and proposed Z-structure unit cells on the performance of helix *** results show improvement of parameters such as directivity,gain,and radiation power of the new metamaterial-based helix ***,the combination of Z-structure with the helix antenna shows the best performance.