eprintid: 669 rev_number: 8 eprint_status: archive userid: 4 dir: disk0/00/00/06/69 datestamp: 2015-04-13 08:39:27 lastmod: 2018-02-26 13:37:25 status_changed: 2015-04-13 08:39:27 type: monograph metadata_visibility: show creators_name: Poli, L. creators_name: Moriyama, T. creators_name: Rocca, P. title: Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear Arrays ispublished: pub subjects: MEA full_text_status: public monograph_type: technical_report keywords: Evolutionary Optimization, Array Synthesis, Time Modulated Arrays abstract: In this paper, 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 pointing out potentialities and limitations of the proposed approach. date: 2015 publisher: University of Trento referencetext: [1] L. Poli, P. Rocca, L. Manica, A. Massa, “Handling sideband radiations in time-modulated arrays through particle swarm optimization,” IEEE Trans. Antennas Propag., vol. 58, no. 4, pp. 1408-1411, Apr. 2010. [2] L. Poli, P. Rocca, L. Manica, A. Massa, “Time modulated planar arrays - Analysis and optimisation of the sideband radiations,” IET Microw. Antennas Propag., vol. 4, no. 9, pp. 1165-1171, 2010. [3] P. Rocca, L. Poli, G. Oliveri, A. Massa, “Synthesis of time-modulated planar array with controlled harmonic radiations,” J. Electromagn. Waves Appl., vol. 24, no. 4, pp. 827-838, 2010. [4] P. Rocca, L. Poli, G. Oliveri, and A. Massa, “Synthesis of sub-arrayed time modulated linear arrays through a multi-stage approach,” IEEE Trans. Antennas Propag., vol. 59, no. 9, pp. 3246-3254, Sep. 2011. [5] L. Poli, P. Rocca, and A. Massa, “Sideband radiation reduction exploiting pattern multi- plication in directive time-modulated linear arrays,” IET Microw. Antennas Propag., vol. 6, no. 2, pp. 214-222, 2012. [6] E. T. Bekele, L. Poli, M. D’Urso, P. Rocca, and A. Massa, “Pulse-shaping strategy for time modulated arrays - Analysis and design,” IEEE Trans. Antennas Propag., vol. 61, no. 7, pp. 3525-3537, Jul. 2013. [7] L. Poli, P. Rocca, L. Manica, A. Massa, “Pattern synthesis in time-modulated linear arrays through pulse shifting,” IET Microw. Antennas Propag., vol. 4, no. 9, pp. 1157-1164, 2010. [8] L. Poli, P. Rocca, G. Oliveri, and A. Massa, “Harmonic beamforming in time-modulated linear arrays,” IEEE Trans. Antennas Propag., vol. 59, no. 7, pp. 2538-2545, Jul. 2011. [9] P. Rocca, L. Poli, G. Oliveri, and A. Massa, "A multi-stage approach for the synthesis of sub-arrayed time modulated linear arrays," IEEE Trans. Antennas Propag., vol. 59, no. 9, pp. 3246-3254, Sep. 2011. [10] P. Rocca, L. Poli, G. Oliveri, and A. Massa, "Adaptive nulling in time-varying scenarios through time-modulated linear arrays," IEEE Antennas Wireless Propag. Lett., vol. 11, pp. 101-104, 2012. [11] P.Rocca,L.Poli,andA.Massa,"Instantaneousdirectivityoptimizationintime-modulated array receivers," IET Microwaves, Antennas & Propagation, vol. 6, no. 14, pp. 1590-1597, Nov. 2012. [12] P. Rocca, L. Poli, L. Manica, and A. Massa, "Synthesis of monopulse time-modulated planar arrays with controlled sideband radiation," IET Radar, Sonar & Navigation, vol. 6, no. 6, pp. 432-442, 2012. [13] L. Poli, P. Rocca, G. Oliveri, and A. Massa, "Adaptive nulling in time-modulated linear arrays with minimum power losses," IET Microwaves, Antennas & Propagation, vol. 5, no. 2, pp. 157-166, 2011. [14] P. 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Poli, T. Moriyama, and P. Rocca, "Pulse splitting for harmonic beamforming in time- modulated linear arrays," International Journal of Antennas and Propagation, vol. 2014, pp. 1-9, 2014. citation: Poli, L. and Moriyama, T. and Rocca, P. (2015) Pulse Splitting for Harmonic Beamforming in Time-Modulated Linear Arrays. Technical Report. University of Trento. document_url: http://www.eledia.org/students-reports/669/1/Pulse%20Splitting%20for%20Harmonic%20Beamforming%20in%20Time-Modulated%20Linear%20Arrays.pdf