Title :
A Generalized Negative-Refractive-Index Transmission-Line (NRI–TL) Metamaterial for Dual-Band and Quad-Band Applications
Author :
Eleftheriades, George V.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont.
fDate :
6/1/2007 12:00:00 AM
Abstract :
A generalized negative-refractive-index transmission-line (NRI-TL) metamaterial is proposed with two left-handed (backward) and two right-handed (forward) passbands. A condition for closing the corresponding two stopbands between these alternating left-handed and right-handed bands is derived. Moreover, possible applications are identified, including quad-band microwave passive components (e.g., couplers, dividers) and dual-band or quad-band filters. The proposed topology is physically realizable using embedded passives in a host TL (e.g., microstrip)
Keywords :
metamaterials; microwave filters; passive filters; waveguide couplers; backward waves; dual-band filters; embedded passives; left-handed media; left-handed passband; negative-refractive-index transmission-line metamaterial; quad-band filters; quad-band microwave passive components; right-handed passbands; Band pass filters; Couplers; Dual band; Metamaterials; Microstrip; Microwave filters; Passband; Passive filters; Topology; Transmission lines; Backward waves; dual band filters; left-handed media; metamaterials; negative refraction; quad-band lines;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.897786
