Open AccessA mircostrip antenna with single square ring structured left-handed metamaterial
Author(s) -
Guo Lin-yan,
Helin Yang,
Minhua Li,
Gao Chao-Song,
Yuan Tian
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.014102
Subject(s) - metamaterial , metamaterial antenna , microstrip antenna , patch antenna , optics , microstrip , bandwidth (computing) , left handed , antenna (radio) , materials science , split ring resonator , square (algebra) , physics , optoelectronics , coaxial antenna , telecommunications , computer science , geometry , mathematics
A simple structured left-handed metamaterials composed of single square ring cell is fabricated. Its permittivity and permeability are simultaneously negative in 4.8-5.25 GHz. A 5.0 GHz microstrip antenna is proposed, and we use this single square ring structured left-handed metamaterials (SSR-LHMs) as covering layer. Simulation and experiment results show that compared with conventional microstrip antenna, the performance of the new microstrip antenna with SSR-LHMs has been improved remarkably. The -3 dB beam of E-plane and H-plane can be reduced respectively by 25 and 20, so the directional property of the antenna is enhanced. The gain is improved by 3dB and the -10 dB bandwidth is increased by 600 MHz.