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Lumped element-based, highly sub-wavelength, negative index metamaterials at UHF frequencies

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11 Author(s)
Erentok, A. ; Department of Electrical and Computer Engineering, University of Arizona, 1230 E. Speedway Blvd., Tucson, Arizona, 85721-0104, USA ; Ziolkowski, R.W. ; Nielsen, J.A. ; Greegor, R.B.
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Several lumped element-based epsilon-negative (ENG), mu-negative (MNG), and double-negative (DNG) metamaterial designs have been developed for operation at 400 MHz in the UHF frequency band. The use of lumped elements enabled the creation of highly sub-wavelength unit cells whose overall size was λ0/d∼75 at 400 MHz. The measured negative index material (NIM) showed an effective real index of refraction nreal=-3.11 with a total loss that was less than 1 dB/cm. The NIM bandwidth was ≫10% in the neighborhood of 400 MHz.

Published in:

Journal of Applied Physics  (Volume:104 ,  Issue: 3 )

Date of Publication:

Aug 2008

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