eprintid: 458
rev_number: 6
eprint_status: archive
userid: 5
dir: disk0/00/00/04/58
datestamp: 2011-07-05
lastmod: 2013-07-01 09:19:29
status_changed: 2013-07-01 09:19:29
type: techreport
metadata_visibility: show
item_issues_count: 0
creators_name: Poli, Lorenzo
creators_name: Manica, Luca
creators_name: Rocca, Paolo
creators_name: Massa, Andrea
title: Subarrayed Time-Modulated Arrays with Minimum Power Losses
ispublished: pub
subjects: TU
full_text_status: public
note: This version is a pre-print of the final version available at IEEE.
abstract: In recent years, several works have been devoted to show the potentialities of time-modulated arrays (TMAs) [1][2]. It is now well-established that TMAs synthesize low-sidelobe average patterns by using a set of simple on off radio frequency (RF) switches that modulate the static excitation weights. Moreover, a fast and simple control of the radiation pattern is enabled by just modifying the pulse sequence of RF switches. By exploiting this latter property, it would be of great interest for practical array applications the possibility of reconfiguring the pattern just modifying a reduced number of control elements [3][4] in order to simplify the overall feeding network architecture.
date: 2011-01
date_type: published
institution: University of Trento
department: informaticat
refereed: FALSE
referencetext: [1] Y. Chen, S. Yang, and Z. Nie, “Synthesis of satellite footprint patterns from time-modulated planar arrays with very low dynamic range ratios,” Int. J. Numer. Model., vol. 21, pp. 493-506, 2008. [2] A. Tennant and B. Chambers, “Time-switched array analysis of phase-switched screens,” IEEE Trans. Antennas Propag., vol. 57, no. 3, pp. 808-812, Mar. 2009. [3] R. L. Haupt, “Optimized weighting of uniform subarrays of unequal size,” IEEE Trans. Antennas Propag., vol. 55, no. 4, pp. 1207-1210, Apr. 2007. [4] L. Manica, P. Rocca, and A. Massa, “Design of subarrayed linear and planar array antennas with SLL control based on an excitation matching approach,” IEEE Trans. Antennas Propag., vol. 57, no. 6, pp. 1684-1691, Jun. 2009. [5] L. Manica, P. Rocca, A. Martini, and A. Massa, “An innovative approach based on a tree searching algorithm for the optimal matching of independently optimum sum and difference excitations,” IEEE Trans. Antennas Propag., vol. 56, no. 1, pp. 58-66, Jan. 2008. [6] J. C. Brégains, J. Fondevila, G. Franceschetti, and F. Ares, “Signal radiation and power losses of time-modulated arrays,” IEEE Trans. Antennas Propag., vol. 56, no. 6, pp. 1799-1804, Jun. 2008. [7] P. Rocca, M. Benedetti, M. Donelli, D. Franceschini, and A. Massa, “Evolutionary optimization as applied to inverse scattering problems,” Inverse Problems, vol. 25, no. 12, pp. 1-41, Dec. 2009. [8] J. Fondevila, J. C. Brégains, F. Ares, and E. Moreno, “Application of time modulation in the synthesis of sum and difference patterns by using linear arrays,” Microw. Opt. Technol. Lett., vol. 48, no. 5, pp. 829-832, May 2006.
citation:   Poli, Lorenzo and Manica, Luca and Rocca, Paolo and Massa, Andrea  (2011) Subarrayed Time-Modulated Arrays with Minimum Power Losses.  [Technical Report]     
document_url: http://www.eledia.org/students-reports/458/1/DISI-11-166.C201.pdf