Absorption analysis of a strip grating placed absorber by the method of moments

The method of moments is applied for the calculation of reflection from specially designed microwave absorbers which are different from conventional ones based on transmission line theory, and non-reflection conditions are sought. The absorber has periodical arrays of conductive strips on a lossy material with metal lining on the back surface and is found to be a new frequency-tuned absorber. It features large versatility in choosing the lossy material compared to conventional absorbers.