META 2021, META'12

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Gain compensated symmetric loaded transmission line exhibiting bidirectional negative group delay
Greg Bridges, Miodrag Kandic

Last modified: 2011-12-05


A microwave circuit capable of bidirectional lossless negative group delay signal propagation is presented. The circuit comprises two symmetric resonator loaded transmission lines with active gain compensation and coupled through power combiners. We demonstrate the circuit is conditionally stable and capable of transmitting a finite bandwidth pulse in both directions.


metamaterials; negative group delay; negative group velocity; RF circuits; active devices