NDLI: Stable multiple non-Foster circuits loaded waveguide for broadband non-dispersive fast-wave propagation

Content Provider	IET Digital Library
Author	Long, J. Sievenpiper, D. F.
Abstract	Periodically loading non-Foster circuits (NFCs) in a conventional waveguide has been proved to be possible for achieving broadband non-dispersive fast-wave (FW) propagation. However, the unconditional stability of such structures has been argued due to the multiple NFC loadings. Despite the potential instability, it is demonstrated that the NFC-loaded waveguide can still be stable for specific terminations, in particular, with the 50 Ω load that is commonly used in radio frequency/microwave applications. For purpose of demonstration, a NFC-loaded waveguide that contains substantially more unit cells than in prior work has been designed and measured, showing a stable and causal FW propagation with a 1.2 c phase velocity over the bandwidth of 80–120 MHz.
Starting Page	1708
Ending Page	1710
Page Count	3
ISSN	00135194
Volume Number	50
e-ISSN	1350911X
Issue Number	Issue 23, Nov (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/50/23
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2014.2612
Journal	Electronics Letters
Publisher Date	2014-10-31
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bandwidth 80 MHz to 120 MHz Broadband Nondispersive Fast-wave Propagation Dielectric-loaded Waveguide Leaky Wave Antenna Multiple NFC Loadings Multiple NonFoster Circuit Loaded Waveguide Single Antenna Waveguide And Microwave Transmission Line Waveguide Antenna
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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