What question did this study set out to answer?

The study aims to develop a method for accurately predicting near-field scattering characteristics for millimeter-wave and terahertz radar systems.

April 25, 2026Radio Science

Near‐Field Electromagnetic Scattering Accurate Prediction for Millimeter‐Wave and Terahertz Radar Technology

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Randomized trial evaluates scattering predictions in radar technology, suggesting improved accuracy for near-field applications.

The study aims to develop a method for accurately predicting near-field scattering characteristics for millimeter-wave and terahertz radar systems.
Proposed an analytical method based on the generalized radar range equation for near-field targets.
Considered partial illumination effects and antenna near-field radiation characteristics in the approach.
Validated predictions by comparing calculated results with full-wave electromagnetic simulations using Ansys HFSS.
Achieved deviations below 1 dB in predictions for canonical targets like plates and cylinders at specified frequencies.
Demonstrated faster evaluation compared to numerical integration algorithms and full-wave simulations.
Highlighted application potential in high-resolution near-field imaging and 6G terahertz systems.

Xiao et al. (2026) studied this question.

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