Nonradiating and minimum energy sources and their fields: generalized source inversion theory and applications

Edwin A. Marengo; Richard W. Ziolkowski

doi:10.1109/8.899672

Nonradiating and minimum energy sources and their fields: generalized source inversion theory and applications

Edwin A. Marengo, Richard W. Ziolkowski

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

Abstract

A new general framework for characterizing scalar and electromagnetic (EM) nonradiating (NR) and minimum energy (ME) sources and their fields is developed that is of interest for both radiation and source reconstruction problems. NR sources are characterized in connection with the concept of reciprocity as nonreceptors. Localized ME sources are shown to be free fields truncated within the source's support. A new source analysis tool is developed that is based on the decomposition of a source and its field into their radiating and NR components. The individual radiating and reactive energy roles of the radiating and NR parts of a source are characterized. The general theory is illustrated with a time-harmonic EM example.

Original language	English (US)
Pages (from-to)	1553-1562
Number of pages	10
Journal	IEEE Transactions on Antennas and Propagation
Volume	48
Issue number	10
DOIs	https://doi.org/10.1109/8.899672
State	Published - Oct 2000

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/8.899672

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title = "Nonradiating and minimum energy sources and their fields: generalized source inversion theory and applications",

abstract = "A new general framework for characterizing scalar and electromagnetic (EM) nonradiating (NR) and minimum energy (ME) sources and their fields is developed that is of interest for both radiation and source reconstruction problems. NR sources are characterized in connection with the concept of reciprocity as nonreceptors. Localized ME sources are shown to be free fields truncated within the source's support. A new source analysis tool is developed that is based on the decomposition of a source and its field into their radiating and NR components. The individual radiating and reactive energy roles of the radiating and NR parts of a source are characterized. The general theory is illustrated with a time-harmonic EM example.",

author = "Marengo, {Edwin A.} and Ziolkowski, {Richard W.}",

note = "Funding Information: Manuscript received August 27, 1999; revised May 26, 2000. This work was supported by the NSF under Grant ECS-9900246 and by the Air Force Office of Scientific Research, Air Force Materials Command, USAF, under Grant F49620-96-1-0039.",

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AU - Marengo, Edwin A.

AU - Ziolkowski, Richard W.

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AB - A new general framework for characterizing scalar and electromagnetic (EM) nonradiating (NR) and minimum energy (ME) sources and their fields is developed that is of interest for both radiation and source reconstruction problems. NR sources are characterized in connection with the concept of reciprocity as nonreceptors. Localized ME sources are shown to be free fields truncated within the source's support. A new source analysis tool is developed that is based on the decomposition of a source and its field into their radiating and NR components. The individual radiating and reactive energy roles of the radiating and NR parts of a source are characterized. The general theory is illustrated with a time-harmonic EM example.

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Nonradiating and minimum energy sources and their fields: generalized source inversion theory and applications

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