ECONOMIC DESIGN OF A MICROWAVE ABSORBER
If a microwave absorber is designed to absorb a particular frequency, then absorber material’s thickness and complex dielectric constant must have to have particular value for impedance matching between absorber and free space. But the combination of these two parameters might not be found in materials available in the marketplace and costumed-synthesized material might be too much expensive. In this research, material thickness is engineered by introducing an air gap in the absorber structure and best possible impedance matching is achieved by tuning the thickness of the air gap. The state-of-the-art 3D electromagnetic software HFSS is used to determine the appropriate thickness of the air gap. Finally, the frequency response of the designed absorber is explained by transmission line theory.
National Science Foundation Grant #2000289
Saha, Arun K. Dr. and Pendleton, Walker G.
"ECONOMIC DESIGN OF A MICROWAVE ABSORBER,"
Georgia Journal of Science, Vol. 79, No. 1, Article 35.
Available at: https://digitalcommons.gaacademy.org/gjs/vol79/iss1/35