NDLI: Characterization of infinite- and finite-extent coplanar waveguide metamaterials with varied left- and right-handed passbands

Content Provider	IEEE Xplore Digital Library
Author	Jing Gao Lei Zhu
Copyright Year	2001
Abstract	Coplanar waveguide (CPW) metamaterials with varied left- (LH) and right-handed (RH) passbands are thoroughly studied in terms of per-unit-length transmission parameters and magnitude/phase of transmission coefficient, respectively. The two metamaterials are constructed by simultaneously loading the lumped or distributed CPW series-capacitive and shunt-inductive elements in periodic intervals. Effective characteristic impedance and propagation constant of these infinite-extent metamaterials are first extracted to give a physical insight into the guided-wave propagation characteristics in the LH/RH passbands. It is further exhibited that the stopband between the LH and RH passbands can be wholly eliminated in the distributed CPW case. The two finite-extent CPW metamaterials with 50-/spl Omega/ feed lines are then modeled via simple cascaded transmission line theorem. Predicted magnitude and phase of transmission coefficient are confirmed by experiment, showing the distinctive backward- and forward-wave performances in the LH and RH passbands, respectively.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	805
Ending Page	807
Page Count	3
File Size	329462
File Format	PDF
ISSN	15311309
Volume Number	15
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coplanar waveguides Metamaterials Passband Impedance Transmission line theory Propagation constant Coplanar transmission lines Transmission lines Feeds Permeability left- (LH) and right-handed (RH) passbands Coplanar waveguide (CPW) infinite- and finite-extent metamaterials
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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