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

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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Submitted on : Tuesday, April 24, 2018 - 11:36:38 AM
Last modification on : Monday, April 30, 2018 - 1:43:49 PM

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Jixin Guo, Shiwen Yang, Yikai Chen, Paolo Rocca, Jun Hu, et al.. Efficient Sideband Suppression in 4-D Antenna Arrays Through Multiple Time Modulation Frequencies. IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2017, 65 (12), pp.7063 - 7072. 〈10.1109/TAP.2017.2766444〉. 〈hal-01774997〉

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