Measured Antenna Models for Numerical Simulations of Antenna Placement Scenarios

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Accurate numerical models of a given antenna can be derived from measurements using the inverse source technique.

Using this technique, measured antenna patterns can currently be imported and used as numerical sources in a number of commercial Computational Electromagnetic (CEM) solvers. This method has been validated experimentally and the achievable accuracy investigated for both stand-alone and flush-mounted antennas. The reported validation activities have been concentrated on flush mounted antennas physically extending from the ground plane. Such antennas can easily be modelled by equivalent currents on a representative structure. In this paper, we investigate the derivation of the numerical model of a measured aperture type antenna, when mounted in a larger flat structure.

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