On Mutual Coupling and Coupling Paths Between Antennas Using the Reaction Theorem

The reaction theorem is applied to antenna coupling problems. It is shown that the reaction theorem can be used to calculate the mutual impedance between antennas, when the electromagnetic fields are known on a plane that separates the antennas in two disjoint regions. We also show that coupling pat...

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Bibliographic Details
Published inIEEE transactions on electromagnetic compatibility Vol. 60; no. 6; pp. 2037 - 2040
Main Authors Malmstrom, Johan, Holter, Henrik, Jonsson, B. L. G.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2018
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antenna theory
Antennas
Coupling paths
Couplings
Electrical Engineering
Electromagnetic compatibility
Electromagnetic fields
Elektro- och systemteknik
Impedance
Mutual coupling
Mutual impedance
Surface impedance
Theorems
Transmitting antennas
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Summary:The reaction theorem is applied to antenna coupling problems. It is shown that the reaction theorem can be used to calculate the mutual impedance between antennas, when the electromagnetic fields are known on a plane that separates the antennas in two disjoint regions. We also show that coupling paths between the antennas can be visualized by using intermediate results from the reaction theorem. The coupling paths are visualized based on the fields generated by each of the two antennas, and only take into account the energy that is actually transferred between the antennas. The visualization of coupling paths is useful for understanding how the coupling between the antennas is distributed in space.
ISSN:0018-9375
1558-187X
1558-187X
DOI:10.1109/TEMC.2017.2771512