Abstract
We introduce a structure made of periodic arrays of H-shaped metallic pattern that offers a potentially simple approach in building left-handed metamaterials with simultaneous negative permittivity and permeability. We have investigated experimentally the transmittance in the rectangle waveguide and found unambiguously a passband that can be tuned easily at microwave frequencies by changing the parameter t. Using phase shift experiment, prism refraction experiment and S-parameter retrieval method, we have confirmed that the H-shaped metamaterials have negative refractive indices, negative permittivity and negative permeability at the passband frequencies. Compared with the conventional left-handed metamaterials consisting of arrays of wires and split ring resonators, H-shaped left-handed metamaterials show not only magnetic resonance but also electric resonance, so they will be a good candidate in the microwave applications due to their simple structure and easy preparation.
Original language | English |
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Pages (from-to) | 5883-5889 |
Number of pages | 7 |
Journal | Wuli Xuebao/Acta Physica Sinica |
Volume | 56 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2007 |
Keywords
- Left-handed metamaterials
- Negative refraction
- Phase