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., GONZALEZ 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). Institute of Electrical and Electronics Engineers Inc. [10.1109/EuCAP.2014.6901999].
Metasurface leaky-wave antennas: A comparison between slot and patch implementation
FAENZI, MARCO;MARTINI, ENRICA;GONZALEZ OVEJERO, DAVID;MINATTI, GABRIELE;MACI, STEFANO
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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