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

metamaterials at UHF frequencies Aycan Erentok, Richard W. Ziolkowski, J. A. Nielsen, R. B. Greegor, C. G. Parazzoli, M. H. Tanielian, Steven A. Cummer, Bogdan-Ioan Popa, Thomas Hand, D. C. Vier, and S. Schultz Department of Electrical and Computer Engineering, University of Arizona, 1230 E. Speedway Blvd., Tucson, Arizona, 85721-0104, USA Boeing Phantom Works, P.O. Box 3999, MC 3W-81 Seattle, Washington 98124-2499, USA Electrical and Computer Engineering, Department P.O. Box 90291, Duke University, Durham, North Carolina 27708, USA Department of Physics, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA