This paper is devoted to the analysis and design of a high-gain circularly polarized antenna with low profile for deep space communications in the X-band. In this context, the low-mass and high efficiency requirements can be addressed at the same time by properly designing a layer of patches (slots) printed (etched) on a grounded dielectric substrate. The interaction between this layer and the surface wave launched by a simple and compact feeder leads to leaky-wave radiation. The overall structure is very light and low profile; in particular, for the slot-based solution the dielectric slab is extremely thin (0.15 mm) and characterized by a low permittivity. The design procedure is summarized, and the patch and slot layouts are shown along with their respective directivity patterns.
Faenzi, M., Martini, E., González-Ovejero, D., Minatti, G., De Vita, P., Sabbadini, M., et al. (2014). Metasurface leaky-wave antennas: A comparison between slot and patch implementation. In 8th European Conference on Antennas and Propagation, EuCAP 2014 (pp.1234-1237). New York : Institute of Electrical and Electronics Engineers Inc. [10.1109/EuCAP.2014.6901999].
Metasurface leaky-wave antennas: A comparison between slot and patch implementation
Faenzi, M;Martini, E.;Minatti, G.;Sabbadini, M.;Maci, S.
2014-01-01
Abstract
This paper is devoted to the analysis and design of a high-gain circularly polarized antenna with low profile for deep space communications in the X-band. In this context, the low-mass and high efficiency requirements can be addressed at the same time by properly designing a layer of patches (slots) printed (etched) on a grounded dielectric substrate. The interaction between this layer and the surface wave launched by a simple and compact feeder leads to leaky-wave radiation. The overall structure is very light and low profile; in particular, for the slot-based solution the dielectric slab is extremely thin (0.15 mm) and characterized by a low permittivity. The design procedure is summarized, and the patch and slot layouts are shown along with their respective directivity patterns.
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https://hdl.handle.net/11365/999606
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