A design process for Jaumann absorbers

Abstract
Results of an investigation into the design of Jaumann absorbers are reported. Jaumann absorbers are effective in minimizing plane wave reflection from a conducting metal surface and exhibit reasonably wide frequency and incidence angle bandwidths. The spacers between the resistive sheets are usually assumed to be lossless and a quarter-wavelength long at the center frequency. It is shown that the numerical minimization technique can result in a design which improves upon the purely analytical methods. Some representative results are shown.> Author(s) du Toit, L.J. Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa Cloete, JH

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