Sunflower Array Antenna with Adjustable Density Taper
A deterministic procedure to design a nonperiodic planar array radiating a rotationally symmetric pencil beam pattern with an adjustable sidelobe level is proposed. The elements positions are derived by modifying the peculiar locations of the sunflower seeds in such a way that the corresponding spat...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2009-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2009/624035 |
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| Summary: | A deterministic procedure to design a nonperiodic
planar array radiating a rotationally symmetric pencil beam pattern
with an adjustable sidelobe level is proposed. The elements
positions are derived by modifying the peculiar locations of the
sunflower seeds in such a way that the corresponding spatial
density fits a Taylor amplitude tapering law which guarantees
the pattern requirements in terms of beamwidth and sidelobe
level. Different configurations, based on a Voronoi cell spatial
tessellation of the radiative aperture, are presented, having as
a benchmark the requirements for a typical multibeam satellite
antenna. |
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| ISSN: | 1687-5869 1687-5877 |