Journal
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume 60, Issue 7, Pages 3490-3494Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2012.2196957
Keywords
Metamaterials; non-Foster reactance; small-antennas; stability
Funding
- European Office of Aerospace Research and Development, Air Force Office of Scientific Research, Airforce Research Laboratory [FA8655-10-1-3030]
- [TEC2009-14525-C02-01]
- [CSD2008-00068]
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During the last couple years there have been lot of attempts to use negative non-Foster reactive elements for improving the bandwidth of electrically small antennas (ESAs) or metamaterial-based structures. However, negative non-Foster reactive elements are actually electronic circuits that are not absolutely stable, which could impose serious problems in practical applications. This communication studies the stability of several networks with non-Foster reactive elements by using a time domain approach. This will help to model more realistic situations for antenna and metamaterial technology.
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