Title :
Optimizing the directional radiation of metamaterial antenna
Author :
Rui-Xin Wu ; Yan Gu ; Lirong Tan
Author_Institution :
Sch. of Electron. Sci. & Eng., Nanjing Univ., Nanjing, China
Abstract :
Metamaterial antenna involving a shell of left-handed materials (LHM) and a line source could be a directional antenna with lower RCS. To optimize the performance of the antenna, we studied the effects of the line source position and the properties of LHM shell on the directional radiation. The results show that these factors can greatly change the directional emission of the antenna. To maximize directive emission, one needs to optimize the source position and the size of LHM shell, and to balance the directivity and side-lobe peak levels of the antenna.
Keywords :
directive antennas; electromagnetic metamaterials; metamaterial antennas; LHM shell; directional emission; directional radiation; left-handed materials; line source position; metamaterial antenna; side-lobe peak levels; Directive antennas; Electromagnetics; Magnetic losses; Magnetic resonance imaging; Metamaterials;
Conference_Titel :
Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2013 7th International Congress on
Conference_Location :
Talence
Print_ISBN :
978-1-4799-1229-2
DOI :
10.1109/MetaMaterials.2013.6808968
