Partially Transparent Jaumann-Like Absorber Applied to a Curved Structure
A Jaumann absorber with its metal backing replaced with a combined low-pass and polarizer FSS is investigated with respect to its absorption and its polarization-dependent low-frequency transparency properties. This structure is applied to an idealized curved wing-front end, and its monostatic radar...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2011-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2011/708987 |
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| Summary: | A Jaumann absorber with its metal backing replaced with a combined low-pass and polarizer
FSS is investigated with respect to its absorption and its polarization-dependent low-frequency transparency properties. This structure is applied to an idealized curved wing-front end, and its monostatic
radar cross-section is determined. The FSS-Jaumann structure preserves an absorption similar to
the planar Jaumann absorber in the higher frequency interval and enables a partial transparency in
the TEz polarization at 1 GHz. In addition, once the structure is applied to the wing-front end, a
significant reduction in two-dimensional radar cross-section for both the TMz and TEz polarization
over 2–16 GHz is observed. A sensitivity analysis shows that the resistivity of the inner resistive layer
has a large impact on the 1 GHz transmission. |
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| ISSN: | 1687-5869 1687-5877 |