Wideband negative permeability metamaterial with non-Foster compensation of parasitic capacitance

Konrad Miehle, Thomas P. Weldon, Ryan S. Adams, Kasra Daneshvar
2012 Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation  
The analysis and simulation of negative effective permeability of a magnetic metamaterial is presented, including parasitic effects. Beyond known issues of non-Foster circuit stability, such parasitics can limit bandwidth improvement. Based on the analysis, ideal non-Foster elements are added to split rings to achieve broadband negative effective permeability while compensating parasitic effects. Results indicate that both a negative capacitance and negative inductance are needed to achieve negative permeability from 0.5 to 4.5 GHz.
doi:10.1109/aps.2012.6349229 fatcat:qerxxulfqbau5endbl5bxdw74a