Phased arrays operating in a near field environment

Kyungjung Kim; Tapan Kumar Sarkar; Magdalena Salazar Palma

doi:10.1109/WCT.2003.1321568

Phased arrays operating in a near field environment

Kyungjung Kim, Tapan Kumar Sarkar, Magdalena Salazar Palma

Department of Electrical Engineering & Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English (US)
Title of host publication	2003 IEEE Topical Conference on Wireless Communication Technology
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	380-383
Number of pages	4
ISBN (Print)	0780381963, 9780780381964
DOIs	https://doi.org/10.1109/WCT.2003.1321568
State	Published - 2003
Event	IEEE Topical Conference on Wireless Communication Technology - Honolulu, United States Duration: Oct 15 2003 → Oct 17 2003

Other

Other	IEEE Topical Conference on Wireless Communication Technology
Country	United States
City	Honolulu
Period	10/15/03 → 10/17/03

ASJC Scopus subject areas

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

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Kim, K, Sarkar, TK & Palma, MS 2003, Phased arrays operating in a near field environment. in 2003 IEEE Topical Conference on Wireless Communication Technology., 1321568, Institute of Electrical and Electronics Engineers Inc., pp. 380-383, IEEE Topical Conference on Wireless Communication Technology, Honolulu, United States, 10/15/03. https://doi.org/10.1109/WCT.2003.1321568

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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.",

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AB - 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.

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