Phased arrays operating in a near field environment

Kyungjung Kim, Tapan Kumar Sarkar, Magdalena Salazar Palma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An adaptive methodology is presented that can not only deal with realistic antenna elements operating in a real environment hut can also handle the effects of mutual coupling between the antenna elements. In addition, one can incorporate in this methodology the effects of near field scatterers and use of dissimilar antenna elements in the array. The analysis is carried out by using a dynamic electromagnetic analysis tool. In addition, an array transformation technique is used to mitigate the various complex electromagnetic effects in a non-uniformly spaced non-planar array in the presence of the mutual coupling and transform the problem to that of a virtual linear array of uniformly spaced isotropic point radiators operating in free space. The preprocessed data from the interpolated virtual array is analyzed using a direct data domain least squares approach utilizing a single snapshot of data to estimate the strength of the signal of interest arriving from a known direction in the presence of coherent strong jammers, clutter and thermal noise. In addition, this methodology is quite amenable to real time processing.

Original languageEnglish (US)
Title of host publication2003 IEEE Topical Conference on Wireless Communication Technology
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages380-383
Number of pages4
ISBN (Print)0780381963, 9780780381964
DOIs
StatePublished - 2003
EventIEEE Topical Conference on Wireless Communication Technology - Honolulu, United States
Duration: Oct 15 2003Oct 17 2003

Other

OtherIEEE Topical Conference on Wireless Communication Technology
CountryUnited States
CityHonolulu
Period10/15/0310/17/03

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Control and Systems Engineering

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