Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 22, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.3040307
Keywords
anisotropic media; antenna radiation patterns; horn antennas; lens antennas; metamaterials; microwave photonics; multibeam antennas
Categories
Funding
- National Science Foundation of China [60871016, 60671015, 60601002, 60621002]
- Natural Science Foundation of Jiangsu Province [BK2008031]
- National Basic Research Program (973) of China [2004CB719802]
- 111 Project [111-2-05]
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In reality, the optical-transformation media with complicated and continuous electromagnetic parameters are difficult to realize. In this work, we propose a discrete embedded optical transformation from which a layered high-gain lens antenna is designed. All layers of the lens antenna are composed of homogeneous and uniaxially anisotropic metamaterials, which are simple and realizable. When the layered lens is embedded in a horn antenna, the lens antenna provides a high-directivity radiation beam. We also use the discrete optical transformation to design a multibeam high-gain antenna.
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