Open AccessThe thick ring resonators to achieve negative permeability and its left-handed behavior in perpendicular propagation
Author(s) -
Yahong Liu,
Song Juan,
Luo Chun-Rong,
Fu Quanhong,
Xiaopeng Zhao
Publication year - 2008
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.57.934
Subject(s) - resonator , perpendicular , materials science , split ring resonator , microwave , optics , resonance (particle physics) , transmittance , metamaterial , bandwidth (computing) , left handed , permeability (electromagnetism) , coupling coefficient of resonators , optoelectronics , physics , telecommunications , atomic physics , geometry , mathematics , membrane , biology , genetics , quantum mechanics , computer science
We experimentally investigated the microwave transmittance properties of the thick ring resonators in a rectangular waveguide for propagation perpendicular to the plane of the ring resonators. Our ring resonators are different from the conventional split ring resonators which have the certain thickness. It is found that a transmission dip occurs at 145GHz and the transmission phase has a shift at the resonance frequency for the thick ring resonators. Furthermorewe calculated the permeability of the thick ring resonators applying bianisotropic composite modeling and found the negative permeability near the resonance transmission dip. We measured the left-handed peak and phase advance by using the thick ring resonators combined with wires which have transmission pass bandwidth of 15GHz and transmission value of -21dB.