Title :
A printed dual-band coupled-line coupler using modified generalized negative-refractive-index transmission lines
Author :
Ryan, Colan G.M. ; Eleftheriades, George V.
Author_Institution :
Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada
Abstract :
A dual-band printed metamaterial coupler made of a microstrip line and a generalized negative-refractive index line is presented. Due to the presence of two left-handed bands in the unit cell, backward coupling occurs over two frequency ranges centered on 2.7 GHz and 4.7 GHz. Measured results for an edge-coupled device are reported.
Keywords :
coupled transmission lines; metamaterials; microstrip antennas; microstrip lines; multifrequency antennas; refractive index; waveguide couplers; backward coupling; frequency 2.7 GHz to 4.7 GHz; generalized negative refractive index; left-handed bands; metamaterial; microstrip line; printed dual-band coupled-line coupler; transmission lines; unit cell; Couplers; Couplings; Dual band; Insertion loss; Microstrip; Microwave theory and techniques; Transmission line measurements; Coupler; generalized negative-refractive-index transmission-line; metamaterial;
Conference_Titel :
Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-61284-754-2
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2011.5972923
