Synthesis of Compromise Sum-DifferenceArrays through Time-Modulation

Rocca, Paolo and Manica, Luca and Poli, Lorenzo and Massa, Andrea (2009) Synthesis of Compromise Sum-DifferenceArrays through Time-Modulation. UNSPECIFIED.

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    In this paper, time-modulation is exploited for the synthesis of monopulse sub-arrayed antennas. The solution of the compromise sum-difference problem is obtained by setting the set of static excitations to an optimal sum set and synthesizing the “best compromise” difference pattern through a Continuous Partition Method (CPM) based approach. The array elements are aggregated into sub-arrays controlled by means of RF switches with optimized “on” time-durations. The switch-on instants of the pulse sequences are then computed by means of a particle swarm optimizer to reduce the interferences caused by the sideband radiations. A selected set of numerical results is reported to assess the potentialities of time-modulation in dealing with the synthesis problem at hand. This paper is a postprint of a paper submitted to and accepted for publication in Radar, Sonar & Navigation and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.

    Item Type: Departmental Technical Report
    Department or Research center: Information Engineering and Computer Science
    Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7885 Computer Engineering
    Q Science > QC Physics (General) > QC661 Electromagnetic Theory
    Q Science > QC Physics (General) > QC760 Electromagnetism
    Uncontrolled Keywords: Sum and Difference Compromise Pattern Synthesis, Monopulse Antennas, Time-Modulated Arrays
    Report Number: DISI-11-015
    Repository staff approval on: 25 Mar 2011

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