Analysis of surrounded antennas mounted on large and complex structures using a hybrid method

Lepvrier, Benoît Le; Loison, Renaud; Gillard, Raphaël; Patier, Laurent; Potier, Patrick; Pouliguen, Philippe

doi:10.1109/eucap.2014.6902288

Cited by 1 publication

(1 citation statement)

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“…There can be a large difference between an antennas isolated radiation pattern, which is the radiation pattern for the antenna in free space, and its installed radiation pattern, which is the radiation pattern when installed on a platform. Hence, as is well known, antennas must be analyzed within their complete environment [33]. The isolation between antennas is related to the risk for interference between the antennas.…”

Section: Discussionmentioning

confidence: 99%

On the Accuracy of Equivalent Antenna Representations—A Case Study

Malmström

Holter

Jonsson

2018

IEEE Trans. Antennas Propagat.

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The accuracy of two equivalent antenna representations, nearfield sources and far-field sources, are evaluated for an antenna installed on a simplified platform in a series of case studies using different configurations of equivalent antenna representations. The accuracy is evaluated in terms of installed far-fields and surface currents on the platform. The results show large variations between configurations. The root-mean-square installed far-field error is 4.4 % for the most accurate equivalent representation. When using far-field sources, the design parameters have a large influence of the achieved accuracy. There is also a varying accuracy depending on the type of numerical method used. Based on the results, some recommendations on the choice of sub-domain for the equivalent antenna representation are given. In industrial antenna applications, the accuracy in determining e.g. installed far-fields and antenna isolation on large platforms are critical. Equivalent representations can reduce the fine-detail complexity of antennas and thus give an efficient numerical descriptions to be used in large-scale simulations. The results in this paper can be used as a guideline by antenna designers or system engineers when using equivalent sources.

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Section: Discussionmentioning

confidence: 99%