Advances in the design of Jaumann absorbers

Date
1990
Authors
du Toit L.J.
Cloete J.H.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The authors consider electric screens with the material spacers assumed homogeneous, nonmagnetic, lossless, commensurate, and isotropic. Normal incidence is assumed. Such an N-layered structure may be modeled as a transmission line network. The unknowns are the N spacer characteristic impedances and the N sheet surface resistivities. All are normalized by the free-space impedance. The maximally flat solution of R. L. Fante and M. T. McCormack (1988) is extended to any number of layers, with proven solvability up to 20 layers. An equiripple solution, which, for a given number of layers and specified maximum reflection coefficient, exhibits a wider bandwidth than the corresponding maximally flat solution, is described. The sheet resistivity spread is also much narrower, thus increasing realizability.
Description
Keywords
Electric Networks - Transmission Line Theory, Electric Screens, Jaumann Absorbers, Electric Shielding
Citation
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
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