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- W2372224894 abstract "With the reduction of operation frequency, the height of the pyramidal absorber in the microwave anechoic chamber will increase correspondingly. It will encounter difficulties in soaking and baking the polyurethane foam absorbers with large dimensions. Namely, manufacture process becomes tough and expensive. To avoid those difficulties, a new type pyramidal absorber has been developed, which is made of a polystyrene hard foam shell, and filled with the mixture of little absorptive polystyrene foam balls. Good quality of this kind of absorbers is guaranteed by the property of selected polystyrene foams, which present low density, high burning resistance and low dielectric constant. The absorbers present smooth surface, and good brightness. The results of measurement shows that the reflectivity of an absorber 500mm in height is substantially better than -50dB from 2.6 to 18GHz." @default.
- W2372224894 created "2016-06-24" @default.
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- W2372224894 date "2001-01-01" @default.
- W2372224894 modified "2023-09-27" @default.
- W2372224894 title "Pyramidal absorbers made of hard foam polystyrene shell" @default.
- W2372224894 hasPublicationYear "2001" @default.
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