Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear Arrays
A novel strategy for harmonic beamforming in time-modulated linear arrays is proposed. The pulse splitting technique is exploited to simultaneously generate two harmonic patterns, one at the central frequency and another at a preselected harmonic of arbitrary order, while controlling the maximum lev...
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2014-01-01
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Series: | International Journal of Antennas and Propagation |
Online Access: | http://dx.doi.org/10.1155/2014/797590 |
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doaj-160ca4b61f4d47bb9d98844b6ad50b9d2020-11-25T00:24:56ZengHindawi LimitedInternational Journal of Antennas and Propagation1687-58691687-58772014-01-01201410.1155/2014/797590797590Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear ArraysLorenzo Poli0Toshifumi Moriyama1Paolo Rocca2Department of Information Engineering and Computer Science, ELEDIA Research Center, University of Trento, Via Sommarive 5, 38123 Trento, ItalySchool of Engineering, Nagasaki University, 1-14 Bunkyomachi, Nagasaki-shi 852-8521, JapanDepartment of Information Engineering and Computer Science, ELEDIA Research Center, University of Trento, Via Sommarive 5, 38123 Trento, ItalyA novel strategy for harmonic beamforming in time-modulated linear arrays is proposed. The pulse splitting technique is exploited to simultaneously generate two harmonic patterns, one at the central frequency and another at a preselected harmonic of arbitrary order, while controlling the maximum level of the remaining sideband radiations. An optimization strategy based on the particle swarm optimizer is developed in order to determine the optimal parameters describing the pulse sequence used to modulate the excitation weights of the array elements. Representative numerical results are reported and discussed to point out potentialities and limitations of the proposed approach.http://dx.doi.org/10.1155/2014/797590 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lorenzo Poli Toshifumi Moriyama Paolo Rocca |
spellingShingle |
Lorenzo Poli Toshifumi Moriyama Paolo Rocca Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear Arrays International Journal of Antennas and Propagation |
author_facet |
Lorenzo Poli Toshifumi Moriyama Paolo Rocca |
author_sort |
Lorenzo Poli |
title |
Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear Arrays |
title_short |
Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear Arrays |
title_full |
Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear Arrays |
title_fullStr |
Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear Arrays |
title_full_unstemmed |
Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear Arrays |
title_sort |
pulse splitting for harmonic beamforming in time-modulated linear arrays |
publisher |
Hindawi Limited |
series |
International Journal of Antennas and Propagation |
issn |
1687-5869 1687-5877 |
publishDate |
2014-01-01 |
description |
A novel strategy for harmonic beamforming in time-modulated linear arrays is proposed. The pulse splitting technique is exploited to simultaneously generate two harmonic patterns, one at the central frequency and another at a preselected harmonic of arbitrary order, while controlling the maximum level of the remaining sideband radiations. An optimization strategy based on the particle swarm optimizer is developed in order to determine the optimal parameters describing the pulse sequence used to modulate the excitation weights of the array elements. Representative numerical results are reported and discussed to point out potentialities and limitations of the proposed approach. |
url |
http://dx.doi.org/10.1155/2014/797590 |
work_keys_str_mv |
AT lorenzopoli pulsesplittingforharmonicbeamformingintimemodulatedlineararrays AT toshifumimoriyama pulsesplittingforharmonicbeamformingintimemodulatedlineararrays AT paolorocca pulsesplittingforharmonicbeamformingintimemodulatedlineararrays |
_version_ |
1725350841508954112 |