Thanks to their versatility, smart antenna arrays are used in a wide variety of contexts, including, in particular, coastal monitoring. Within this framework, operating in multi-frequency modality might reveal a fundamental requirement. So, in this paper the problem of synthesis of multi-frequency antenna arrays is addressed. Precisely, a fixed grid array is considered, having an arbitrary but known geometry. The excitation vectors are optimized in such a way that the radiation patterns belong to a prescribed mask at certain assigned frequencies. Moreover, in order to have a simpler, cheaper and more efficient antenna, the phase-only synthesis is performed. In fact, thanks to this requirement, variable attenuators are not necessary and only phase-shifters are used in the feeding network. Numerical examples are provided, which validate the effectiveness of the method.

A Method of Synthesis for Multi-Frequency Smart Antenna Arrays for Coastal Monitoring

Buttazzoni G.
;
Babich F.;Fanti A.;Vatta F.;Comisso M.
2023-01-01

Abstract

Thanks to their versatility, smart antenna arrays are used in a wide variety of contexts, including, in particular, coastal monitoring. Within this framework, operating in multi-frequency modality might reveal a fundamental requirement. So, in this paper the problem of synthesis of multi-frequency antenna arrays is addressed. Precisely, a fixed grid array is considered, having an arbitrary but known geometry. The excitation vectors are optimized in such a way that the radiation patterns belong to a prescribed mask at certain assigned frequencies. Moreover, in order to have a simpler, cheaper and more efficient antenna, the phase-only synthesis is performed. In fact, thanks to this requirement, variable attenuators are not necessary and only phase-shifters are used in the feeding network. Numerical examples are provided, which validate the effectiveness of the method.
2023
979-8-3503-4065-5
https://ieeexplore.ieee.org/document/10317378
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/3067158
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