Non-Foster element and dispersion engineering approaches to bandwidth enhancements in active metamaterial-inspired structures

Research output: Contribution to conferencePaper

2 Scopus citations

Abstract

Because many metamaterial structures rely on resonances to achieve their interesting properties, they tend to exhibit narrow bandwidths. This is particularly true for resonant scattering and radiating structures, which are themselves intrinsically lossy and dispersive. Recent applications of non-Foster elements to overcome impedance and directivity bandwidth restrictions imposed by fundamental physics limits associated with passive elements will be described. The relationships between this active element approach at lower frequencies and gain material approaches at high frequencies for optical metamaterial structures will be reviewed. It will be demonstrated how the passive-gain-based multiple resonance line dispersion engineering approach and the non-Foster element techniques are interrelated.

Original languageEnglish (US)
Pages1-3
Number of pages3
DOIs
StatePublished - Jan 1 2013
Event2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2013 - Bordeaux, France
Duration: Sep 16 2013Sep 19 2013

Other

Other2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2013
CountryFrance
CityBordeaux
Period9/16/139/19/13

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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    Ziolkowski, R. W. (2013). Non-Foster element and dispersion engineering approaches to bandwidth enhancements in active metamaterial-inspired structures. 1-3. Paper presented at 2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2013, Bordeaux, France. https://doi.org/10.1109/MetaMaterials.2013.6808933