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Wideband negative permeability metamaterial with non-Foster compensation of parasitic capacitance
2012
Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation
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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