Demonstration of Impedance Matching Using a mu-Negative (MNG) Metamaterial
- 22 December 2008
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Antennas and Wireless Propagation Letters
- Vol. 8, 92-95
- https://doi.org/10.1109/lawp.2008.2011570
Abstract
A mu-negative (MNG) metamaterial hemisphere was used to demonstrate impedance matching for a magnetic loop. The metamaterial was comprised of copper spirals deposited on an alumina substrate. The spirals, hemisphere, and magnetic loop were designed to operate at ~450 MHz. The effect of the metamaterial hemisphere was to improve the match of the electrically small loop antenna to the power source impedance increasing the overall radiated power. Results show a 17-dB increase in total radiated power relative to the bare loop. This was lower than anticipated due to losses in the MNG hemisphere.Keywords
This publication has 22 references indexed in Scilit:
- Lumped element-based, highly sub-wavelength, negative index metamaterials at UHF frequenciesJournal of Applied Physics, 2008
- A Hybrid Optimization Method to Analyze Metamaterial-Based Electrically Small AntennasIEEE Transactions on Antennas and Propagation, 2007
- At and below the Chu limit: passive and active broad bandwidth metamaterial-based electrically small antennasIET Microwaves, Antennas & Propagation, 2007
- Metamaterial-based efficient electrically small antennasIEEE Transactions on Antennas and Propagation, 2006
- Electrically Small Antenna Elements Using Negative Permittivity ResonatorsIEEE Transactions on Antennas and Propagation, 2006
- Electromagnetic parameter retrieval from inhomogeneous metamaterialsPhysical Review E, 2005
- Low Q electrically small linear and elliptical polarized spherical dipole antennasIEEE Transactions on Antennas and Propagation, 2005
- Experimental Verification and Simulation of Negative Index of Refraction Using Snell’s LawPhysical Review Letters, 2003
- AwardsIEEE Microwave Magazine, 2000
- A re-examination of the fundamental limits on the radiation Q of electrically small antennasIEEE Transactions on Antennas and Propagation, 1996