Title :
Dispersion characterization of CRLH transmission lines by electro-optic visions of forward/backward waves
Author :
Tsuchiya, Masahiro ; Shiozawa, Takahiro
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Tokyo, Japan
Abstract :
A novel experimental approach is proposed to characterize the dispersion properties of radio frequency (RF) waves in metamaterial structures. The approach is based on wave analyses in the space domain and is provided by RF wave visualization through the live electro-optic imaging scheme. It was successfully demonstrated to visualize forward/backward RF waves in composite right/left-handed transmission lines. The RF wave imagery is shown to be useful for determining right/left-handed frequency ranges as well as evaluating their propagation constants. The derived dispersion diagrams were compared with those obtained from unwrapped S21 phase data.
Keywords :
metamaterials; microwave propagation; optical dispersion; transmission lines; CRLH transmission lines; composite right/left-handed transmission lines; dispersion characterization; electro-optic visions; forward/backward waves; metamaterial structures; radio frequency waves; wave analyses; Cameras; Data visualization; Metamaterials; Motion pictures; Propagation constant; Radio frequency; Space technology; Synthesizers; Transmission line measurements; Transmission lines; Electro-optic measurements; left-handed (LH) structures; metamaterials; microwave propagation; transmission lines; visual system;
Conference_Titel :
Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6056-4
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2010.5517797
