Miniaturized microwave components and antennas using negative-refractive-index transmission-line (NRI-TL) metamaterials

by: George V Eleftheriades, Rubaiyat Islam

Metamaterials, Vol. 1, No. 2. (December 2007), pp. 53-61.

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Abstract

Negative-refractive-index transmission-line (NRI-TL) metamaterials comprise transmission lines loaded periodically with series capacitors and shunt inductors, such that the phase flow and power flow are contra-directional on the lines. These NRI-TL media exhibit properties that can be utilized for miniaturizing microwave components and antennas. In this mainly review paper, a compact antenna, power divider and branch-line coupler are presented to demonstrate the miniaturization techniques enabled by NRI-TLs. Furthermore, a generalized NRI-TL is described that exhibits two left-handed and two right-handed bands. This can be exploited for realizing compact dual-band and quad-band RF/microwave components. This generalized NRI-TL can be designed to exhibit two distinct frequencies where the corresponding propagation constants vanish.

@article{citeulike:2075640, abstract = {Negative-refractive-index transmission-line (NRI-TL) metamaterials comprise transmission lines loaded periodically with series capacitors and shunt inductors, such that the phase flow and power flow are contra-directional on the lines. These NRI-TL media exhibit properties that can be utilized for miniaturizing microwave components and antennas. In this mainly review paper, a compact antenna, power divider and branch-line coupler are presented to demonstrate the miniaturization techniques enabled by NRI-TLs. Furthermore, a generalized NRI-TL is described that exhibits two left-handed and two right-handed bands. This can be exploited for realizing compact dual-band and quad-band RF/microwave components. This generalized NRI-TL can be designed to exhibit two distinct frequencies where the corresponding propagation constants vanish.}, author = {Eleftheriades, George V. and Islam, Rubaiyat }, citeulike-article-id = {2075640}, doi = {10.1016/j.metmat.2007.08.001}, journal = {Metamaterials}, keywords = {antenna, metamaterial, microwave}, month = {December}, number = {2}, pages = {53--61}, posted-at = {2007-12-08 00:54:51}, priority = {2}, title = {Miniaturized microwave components and antennas using negative-refractive-index transmission-line (NRI-TL) metamaterials}, url = {http://dx.doi.org/10.1016/j.metmat.2007.08.001}, volume = {1}, year = {2007} }

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TY - JOUR ID - citeulike:2075640 L3 - citeulike-article-id:2075640 TI - Miniaturized microwave components and antennas using negative-refractive-index transmission-line (NRI-TL) metamaterials JF - Metamaterials VL - 1 IS - 2 SP - 53 EP - 61 N2 - Negative-refractive-index transmission-line (NRI-TL) metamaterials comprise transmission lines loaded periodically with series capacitors and shunt inductors, such that the phase flow and power flow are contra-directional on the lines. These NRI-TL media exhibit properties that can be utilized for miniaturizing microwave components and antennas. In this mainly review paper, a compact antenna, power divider and branch-line coupler are presented to demonstrate the miniaturization techniques enabled by NRI-TLs. Furthermore, a generalized NRI-TL is described that exhibits two left-handed and two right-handed bands. This can be exploited for realizing compact dual-band and quad-band RF/microwave components. This generalized NRI-TL can be designed to exhibit two distinct frequencies where the corresponding propagation constants vanish. KW - antenna KW - metamaterial KW - microwave AU - Eleftheriades, George AU - Islam, Rubaiyat PY - 2007/12// UR - http://dx.doi.org/10.1016/j.metmat.2007.08.001 ER -

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