Polarization estimation with a dipole-dipole pair, a dipole-loop pair, or a loop-loop pair of various orientations

Xin Yuan, Kainam Thomas Wong, Keshav Agrawal

Research output: Journal article publicationJournal articleAcademic researchpeer-review

36 Citations (Scopus)


This work aims to estimate the polarization of fully polarized sources, given prior knowledge of the incident sources' azimuth-elevation directions-of-arrival, using a pair of diversely polarized antennas-two electrically small dipoles, or two small loops, or one each. The pair may be collocated, or spatially separated by a known displacement. Each antenna may orient along any Cartesian coordinate. Altogether, 15 antenna/orientation configurations are thus possible. For each configuration, this paper derives 1) the closed-form polarization-estimation formulas, 2) the associated Cramér-Rao bounds, and 3) the associated computational numerical stability.
Original languageEnglish
Article number6163373
Pages (from-to)2442-2452
Number of pages11
JournalIEEE Transactions on Antennas and Propagation
Issue number5
Publication statusPublished - 11 May 2012


  • Antenna arrays
  • aperture antennas
  • array signal processing
  • parameter estimation
  • polarization estimation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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