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Approximated Method Neglecting Coupling for Conformal Array


F. Chauvet, R. Guincarc'h, M. Hélier

SONDRA, Supélec

Full modeling of large conformal array can be time and memory consuming. An approximated method that takes into account the vectorial nature of the radiated field is presented. The radiation characteristic of the array is obtained by means of the vectorial sum of each element radiation characteristic, rotated according to the orientation of the element. The coupling between elements will be evaluated in the case of interest: a conformal array on an inflatable structure. In the approximated method, coupling will be neglected in such a case. To illustrate the approach, a spiral antenna will be chosen and modeled with MoM. Finally, array radiation patterns obtained by the approximated method will be compared with a full wave MoM to validate our method, in the case of a simplified 1D circular array.

ACES Journal

2007

March

22

1

105 - 111