Reconfigurable Array Beampattern Synthesis via Conceptual Sensor Network Modelling and Computation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Xuan Zhang
  • Junli Liang
  • Xuhui Fan
  • Guoyang Yu
  • H. C. So

Related Research Unit(s)

Detail(s)

Original languageEnglish
Journal / PublicationIEEE Transactions on Antennas and Propagation
Online published13 Feb 2020
Publication statusOnline published - 13 Feb 2020

Abstract

Reconfigurable array radiates multiple patterns with only a single array via designing multiple excitation vectors with common magnitudes for the same element-index excitation elements, so as to guarantee phase-only control. To tackle this problem, this paper proposes a new reconfigurable array beampattern synthesis method. First, we borrow the concept of sensor network consensus computation and model the synthesis problem as a sensor network computation problem via imitating a virtual (conceptual) multi-node sensor network, where each “node” corresponds to an individual beampattern synthesis task. More specifically, these “nodes” with the same number as those of radiated patterns share a set of common excitation magnitudes, which results in a special magnitude-consensus computation problem in the imitated sensor network. Then, via locally computing the excitation in each “node” and exchanging current computation results with neighboring “nodes”, all “nodes” obtain the magnitude-consensus excitations after the “network” is stable. Numerical examples are provided to demonstrate the validity and faster convergence speed of the proposed method.

Research Area(s)

  • Antenna radiation patterns, Computational modeling, Consensus computation, pattern synthesis, phase-only control, Phased arrays, reconfigurable array, Sensor arrays, sensor network, Task analysis