Avariety of antennas have been engineered with metamaterials and metamaterialinspired constructs to improve their performance characteristics. Interesting examples include electrically small, near-field resonant parasitic (NFRP) antennas that require no matching network and have high radiation efficiencies. Experimental verification of their predicted behaviors has been obtained. This NFRP electrically small paradigm has led to a wide variety of multiband and multifunctional antenna systems. The introduction of active metamaterial constructs further augments the antenna designer's toolbox and leads to systems with many interesting and useful properties.
- Artificial magnetic conductors
- Electrically small antennas
- Front-to-back ratio
- Non-Foster elements
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