Band-pass unit cell for extended low-profile lens over radially-corrugated circular horn
| Autor: | Hon Ching Moy-Li, Mariano Baquero-Escudero, Miguel Ferrando-Bataller, Daniel Sanchez-Escuderos |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Capacitive sensing 020208 electrical & electronic engineering Phase (waves) 020206 networking & telecommunications 02 engineering and technology Feed horn Directivity law.invention Lens (optics) Optics Horn antenna Planar law Horn (acoustic) 0202 electrical engineering electronic engineering information engineering business |
| Zdroj: | 2016 IEEE International Symposium on Antennas and Propagation (APSURSI). |
| Popis: | In this paper, a low-profile planar lens fed by a radially-corrugated circular horn antenna is presented. The lens is a multilevel frequency selective surface designed to focus the energy in the far-field region. The constitutive unit cell of the FSS is a perforated metallic square sheet with a capacitive patch in the center of the cell. A large phase shift can be reached for a five-layers configuration by just adjusting the size of the inner capacitive elements. Thereby, the phase of the incoming waves can be compensated to achieve the desired phase distribution on the upper level of the lens. Results show an increment of 3.78 dB at 20.45 GHz in the maximum directivity of the planar lens with respect to the feeding horn antenna. |
| Databáze: | OpenAIRE |
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