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Composite Right/Left-Handed Transmission Lines Based on Conductor-Backed Coplanar Strips
Rei GOTO Hiroyuki DEGUCHI Mikio TSUJI
IEICE TRANSACTIONS on Electronics
Publication Date: 2006/09/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Metamaterials for Microwave and Millimeter-Wave Applications)
metamaterial, left-handed medium, CRLH, coplanar strips, leaky-wave antenna,
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We propose here a composite right/left handed transmission line constructed by using conductor-backed coplanar strips. In this line, we can easily realize a shunt inductor without via because it has the electric-wall symmetry at the guide center. The left-handed nature is verified by both the finite difference time-domain (FDTD) and the equivalent-circuit calculations. Furthermore, we demonstrate the proposed line can easily satisfy the balanced condition for no band gap between the right-handed and the left-handed modes, and can be applied to a leaky-wave antenna, numerically and experimentally.