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Antenna Model Using Ideal Passive RF Components

This paper proposes a structurally simple and intuitively satisfying model for an arbitrary radio-frequency (RF) antenna. The paper first shows a simple mathematical mapping of a monochromatic source voltage signal to the empirically observed far-field vector electric field. The paper next isolates the proposed transmit-antenna model, relating its key features to ideal passive RF components. The paper then proposes a companion receive-antenna model based on the theoretical behavior of the transmit-antenna model’s ideal RF components. Finally, the paper validates the receive-antenna model by predicting the same polarization-mismatch loss traditionally obtained using the Poincaré sphere.