Title :
Active circuits for improved metamaterial performance
Author :
Rajab, Khalid Z. ; Fan, Yifeng ; Bao, Di ; Rahman, Atiqur ; Hao, Yang
Author_Institution :
Dept. of Electron. Eng., Queen Mary Univ. of London, London, UK
Abstract :
The performance of passive antennas and metamaterials are restricted by fundamental physical limits. For example, due to inherent limitations imposed by causality, metamaterials are both lossy and narrowbanded. We will demonstrate active loads that can be used to improve the performance of both metamaterials and antennas.
Keywords :
active networks; metamaterial antennas; microwave circuits; active circuits; improved metamaterial performance; passive antennas; Broadband antennas; Leaky wave antennas; Magnetic materials; Metamaterials; Permeability;
Conference_Titel :
Antenna Technology (iWAT), 2011 International Workshop on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-9133-9
DOI :
10.1109/IWAT.2011.5752373
