Effect of Probe Coupling on Near-Field Imaging Simulation

Probes coupling signal is usually ignored in traditional near-field imaging simulation, which has effect on the imaging result. This paper corrects the problem by adding coupling items in scattering equation and modifying the distance between transceiver and target. Image changing with the coupling signal and the coupling distance is investigated. Background subtraction technique is used in the simulations. It is shown that, target can be focused correctly when the distance satisfies specific conditions.