Wide temperature range dielectric absorber

Details Wide temperature range dielectric absorber Wide temperature range dielectric absorber

2007-03-30

2009-12-15

Tarcza, Thomas H (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Radio wave absorber

For aircraft or missile

C342S001000

Reexamination Certificate

active

07633424

ABSTRACT:
According to one exemplary embodiment, a wide temperature range dielectric absorber includes a dielectric absorber comprising a blend of lanthanum oxide, strontium oxide, and cobalt oxide, and is represented by (1−z)[La1−xSrxCoO3±y]+z[La2−xSrxCoO4±y]. The dielectric absorber includes a first crystalline structure existing independently from a second crystalline structure causing the dielectric absorption composition to have a wide temperature range of electromagnetic radiation absorption. In one embodiment, the first crystalline structure is a perovskite crystalline structure and the second crystalline structure is a potassium nickel fluoride crystalline structure.

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