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DIRECTED
ENERGY
PROFESSIONAL
SOCIETY
Abstract: 25-Systems-078
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UNCLASSIFIED, PUBLIC RELEASE
Remote Assessment of HPM Damage to RF Front-Ends Through Non-Linear Radar
Determining damage to RF front ends from an HPM attack is challenging, especially when device characteristics are not known. Even with precise models, small changes to the device can change the power threshold for effects and damage. This work aims to aid in damage detection by taking advantage of the inherent non-linearity of the RF front end. Non-linear radar has been used to detect devices with RF front ends containing non-linear elements such as power limiters and low noise amplifiers. The goal of this work is to apply the capability of the non-linear radar approach to detect damage from an HPM attack by observing the non-linear response of a device before and after the attack. This work explores the non-linear radar technique, giving equations and range predictions based on realistic system characteristics and careful analysis of all relative power components in the radar system. Simulations using circuit components are used to validate the analytical equations used for prediction.
UNCLASSIFIED, PUBLIC RELEASE
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