Abstract
A tunable negative refractive index metamaterial and miniature phase shifter have been designed and fabricated in a microstrip configuration for applications in radio frequency integrated circuits. The metamaterial consists of plasmonic copper wires and yttrium iron garnet slabs having a low insertion loss of 5 dB at the center of the transmission band. The yttrium iron garnet material enables the magnetic field tuning of the negative refractive index in a dynamic frequency band from 7.0 to 11.0 GHz. The insertion phase can be tuned by 45 degrees continuously by varying the bias field from 3.8 to 4.6 kOe at 9.0 GHz.
Keywords
microstrip, metamaterial, radio frequency integrated circuits, plasmonic copper wires, yttrium iron garnet slabs
Subject Categories
Strip transmission lines, Negative refractive index, Phase shifters, Magnetic fields
Disciplines
Electromagnetics and photonics
Publisher
American Institute of Physics
Publication Date
11-10-2008
Rights Information
Copyright 2008 American Institute of Physics.
Rights Holder
American Institute of Physics
Permanent URL
Recommended Citation
He, P.; Gao, J.; Marinis, C. T.; Parimi, P. V.; Vittoria, C.; and Harris, V. G., "A microstrip tunable negative refractive index metamaterial and phase shifter" (2008). Electrical and Computer Engineering Faculty Publications. Paper 20. http://hdl.handle.net/2047/d20002190
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Notes
Originally published in Applied Physics Letters 93, 193505 (2008). DOI:10.1063/1.3025303