# An Approximate Method for Calculating the Near-Field Mutual Coupling Between Line-of-Sight Antennas on Vehicles

@article{Frid2015AnAM,
title={An Approximate Method for Calculating the Near-Field Mutual Coupling Between Line-of-Sight Antennas on Vehicles},
author={H. Frid and H. Holter and B. Jonsson},
journal={IEEE Transactions on Antennas and Propagation},
year={2015},
volume={63},
pages={4132-4138}
}
• Published 2015
• Physics
• IEEE Transactions on Antennas and Propagation
Calculating the mutual coupling between antennas on vehicles using full-wave simulations requires a vast amount of computer resources due to the electrical size of the structures. We therefore propose an alternative and approximate method to determine mutual coupling between antennas on vehicles for the case where there is line-of-sight (LOS) between the antennas. The proposed method is based on approximating the mutual coupling between LOS antennas on vehicles as near-field transmission… Expand

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#### References

SHOWING 1-10 OF 23 REFERENCES
Analysis of Antenna Coupling in Near-Field Communication Systems
• Physics
• IEEE Transactions on Antennas and Propagation
• 2010
A simple mathematical formula is proposed for computing the coupling coefficient between two arbitrary antennas that are placed within the other's near-field region. The information required by thisExpand
Comparison of measured and calculated antenna sidelobe coupling loss in the near field using approximate far-field data
• Physics
• 1988
Computer programs presently exist to calculate the coupling loss between two antennas provided that the amplitude and phase of the far field are available. It is shown that when this far-fieldExpand
Efficient computation of antenna coupling and fields within the near-field region
The theory, techniques, details of the important equations, and description of two computer programs are presented for calculating efficiently the mutual coupling at a single frequency between anyExpand
Mutual coupling between two arbitrarily oriented and positioned antennas in near- and far-field regions
• Physics
• 2010 URSI International Symposium on Electromagnetic Theory
• 2010
A flexible and efficient computer program is developed to compute complex amplitude coupling between two arbitrarily oriented and positioned antennas in near- and far-field regions. The program onlyExpand
Asymptotic formulas for coupling between two antennas in the Fresnel region
The coefficient of coupling \eta , or the ratio of power transfer between two antennas closely spaced, is defined. A two-term asymptotic approximation for \eta , valid for arbitrary apertureExpand
Comparison of measured and calculated mutual coupling in the near field between microwave antennas
• Physics
• 1984
Measurements of near-field mutual coupling between two moderate sized microwave antennas were performed and compared to coupling calculated using recently developed computer programs. Required inputExpand
Plane-Wave Scattering-Matrix Theory of Antennas and Antenna-Antenna Interactions
From Abstract: "This monograph is distinguished by the use of plane-wave spectra for the representation of fields in space and by the consideration of antenna-antenna (antenna-scatterer) interactionsExpand
A hybridization of finite-element and high-frequency methods for pattern prediction for antennas on aircraft structures
• Engineering
• 1996
This paper considers the hybridization of the finite-element and high-frequency methods for predicting the radiation pattern of printed antennas mounted on aircraft platforms. The finite-elementExpand
Influence of source - phantom multiple interactions on the field transmitted in a flat phantom
• Physics
• 2007 18th International Zurich Symposium on Electromagnetic Compatibility
• 2007
For many applications involving antenna systems in the vicinity of lossy scatterers, such as phantoms used for Specific Absorption Rate (SAR) assessment, it would be of great interest to know howExpand
Generalised correction to the friis formula: quick determination of the coupling in the fresnel region
• Mathematics
• 2013
A simple yet effective correction term to the Friis formula is presented to improve its accuracy in the Fresnel region. Based on the concept of gain reduction factor, the proposed asymptotic termExpand