Summary
International Symposium on Antennas and Propagation
2011
Session Number:WeA3
Session:
Number:WeA3-1
Active non-Foster Metamaterials ? State of the Art
S. Hrabar, I. Krois, I. Bonic, A. Kiricenko,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
A concept of active ENZ non-Foster metamaterial, recently introduced at University of Zagreb is reviewed. This approach goes around the basic dispersion constraints of a passive material and, therefore, enables ultra-broadband operation. The problem of achieving stable operation and associated technological constrains are discussed. Several state-of-the art examples of extremely broadband (a bandwidth of more than two octaves), 1D and 2D active RF ENZ metamaterials are presented.