A novel approach, named multiple time modulation frequency, is proposed for the effective suppression of the sideband radiations in 4-D antenna arrays. The time modulation frequency, different for each array element, is exploited as additional design parameter to avoid the superposition of the sideband frequencies generated by the array elements. A customized optimization strategy including the analysis of the mutual coupling effects among the array elements is proposed for the 4-D array synthesis. Selected numerical and experimental results are provided to show that the sideband level of a 4-D antenna array can be significantly reduced by properly designing the switch-on time intervals of each element, even with uniform amplitude excitations.

Efficient Sideband Suppression in 4-D Antenna Arrays Through Multiple Time Modulation Frequencies / Guo, Jixin; Yang, Shiwen; Chen, Yikai; Rocca, Paolo; Hu, Jun; Massa, Andrea. - In: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. - ISSN 0018-926X. - STAMPA. - 65:12(2017), pp. 7063-7072. [10.1109/TAP.2017.2766444]

Efficient Sideband Suppression in 4-D Antenna Arrays Through Multiple Time Modulation Frequencies

Guo, Jixin;Yang, Shiwen;Rocca, Paolo;Massa, Andrea
2017

Abstract

A novel approach, named multiple time modulation frequency, is proposed for the effective suppression of the sideband radiations in 4-D antenna arrays. The time modulation frequency, different for each array element, is exploited as additional design parameter to avoid the superposition of the sideband frequencies generated by the array elements. A customized optimization strategy including the analysis of the mutual coupling effects among the array elements is proposed for the 4-D array synthesis. Selected numerical and experimental results are provided to show that the sideband level of a 4-D antenna array can be significantly reduced by properly designing the switch-on time intervals of each element, even with uniform amplitude excitations.
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Guo, Jixin; Yang, Shiwen; Chen, Yikai; Rocca, Paolo; Hu, Jun; Massa, Andrea
Efficient Sideband Suppression in 4-D Antenna Arrays Through Multiple Time Modulation Frequencies / Guo, Jixin; Yang, Shiwen; Chen, Yikai; Rocca, Paolo; Hu, Jun; Massa, Andrea. - In: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. - ISSN 0018-926X. - STAMPA. - 65:12(2017), pp. 7063-7072. [10.1109/TAP.2017.2766444]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/205712
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