Analytical Approach of EM Wave Absorber Characteristics Based on Constitutive Material Parameters

This paper deals with an analytical approach of square patch-based electromagnetics (EM) wave absorber characteristics in connection with frequency response using its constitutive material parameters. The EM wave absorber is constructed by a single unit cell of square patch surrounding with proper boundary conditions to yield an infinite patch pattern-based EM wave absorber. The performance characteristics of EM wave absorber is analyzed using the approach of constitutive material parameters, namely permittivity, permeability, and conductivity, for each constituent medium. Three different sizes of square patch are applied for the simulation of EM wave absorber generating the frequency response of 8.05 GHz, 9.90 GHz, and 11.95 GHz. The simulation results show that the shift of frequency response which is significantly affected by the size of square patch are agreed well with the approach analyzed through its consecutive material parameters.