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Derivation of Reaction Theorems for Scattered Fields
KTH, School of Electrical Engineering and Computer Science (EECS), Electromagnetic Engineering. Saab Surveillance, S-17588 Stockholm, Sweden.
2018 (English)In: IEEE Antennas and Wireless Propagation Letters, ISSN 1536-1225, E-ISSN 1548-5757, Vol. 17, no 10, p. 1876-1880Article in journal (Refereed) Published
Abstract [en]

Two novel formulations of the reaction are derived. The formulations decompose the electromagnetic fields in scattered components based on the location of the sources of the scattered fields. It is shown that some of the scattering components do not contribute to the reaction. The novel formulations of the reaction are derived by excluding these noncontributing components from the classical reaction formulations. The correctness of one of the formulations is verified with a numerical example. It is observed from one of the novel formulations that the first-order scattered fields do not contribute to the reaction. This result legitimizes the approximation to neglect multiple scattering, which is a common assumption when using reaction theorems. The novel formulations are also important for a conceptual understanding of the reaction.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018. Vol. 17, no 10, p. 1876-1880
Keywords [en]
Antennas, electromagnetic scattering, electromagnetic theory, mutual coupling, mutual impedance
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-237106DOI: 10.1109/LAWP.2018.2868684ISI: 000446797200026Scopus ID: 2-s2.0-85052795993OAI: oai:DiVA.org:kth-237106DiVA, id: diva2:1258016
Note

QC 20181023

Available from: 2018-10-23 Created: 2018-10-23 Last updated: 2018-10-23Bibliographically approved

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