MICROWAVE DETECTION WITH SINGLE-BAND METAMATERIALS FOR HIGH POWER MICROWAVE WEAPONS - Video Portal
MICROWAVE DETECTION WITH SINGLE-BAND METAMATERIALS FOR HIGH POWER MICROWAVE WEAPONS
LT Edward Wulff, USN
Abstract: As the development of high power microwave (HPM) continues, the potential threat to electronic systems increases. The use of metamaterials’ (MM) unique characteristics have the capability to be a countermeasure against HPM weapons as shielding for electronic systems. This thesis continues to explore the use of MMs as a countermeasure by studying the integration of field effect transistors (FET) with metal/dielectric/metal MM as a method of detection. The effects of the resonant frequency examined when FETs were added as well as how the FET operated at the resonant frequency. Finite element simulations and experiments, that introduced E&M fields onto the MM board, were used to conduct the analysis. Simulations demonstrated that FETs have the potential to shift the resonant frequency to the left and generate an electric potential at the resonant frequency. The experimental board resonant frequency did not shift due to the limited number of FETs on the board. We conclude that further work for MM board detection of HPM weapons, with exposure of MM boards to megawatt radiation of higher frequency is required.