Compilation of Hazardous and Benign Material Complex Dielectric Constants at Millimeter Wave Frequencies for Security Applications

TL;DR

This paper compiles dielectric constants of various materials at 30 GHz to aid security scanner algorithms, classifying materials into threat categories based on their dielectric properties.

Contribution

It provides a comprehensive database of dielectric constants for hazardous and benign materials at millimeter wave frequencies, facilitating improved threat detection algorithms.

Findings

Materials are effectively grouped into threat categories based on dielectric constants.

The compiled data supports the development of more accurate personnel scanning algorithms.

The dielectric properties at 30 GHz vary significantly across material types.

Abstract

This paper compiles measured complex dielectric constants of benign and hazardous materials used for developing algorithms for personnel scanners at airports at 30 GHz. The materials are grouped into broad classifications of potential threat by mapping the materials to the complex dielectric constant plane.