Light-weight low-thermal-expansion polymer foam for...

Wave transmission lines and networks – Coupling networks – Wave filters including long line elements

Reexamination Certificate

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C333S203000, C333S206000

Reexamination Certificate

active

07847658

ABSTRACT:
An apparatus100comprising a radiofrequency filter body housing102. The radiofrequency filter body housing includes a polymeric composition110that includes at least one polymer foam115and filler material120. The filler material is uniformly distributed and randomly oriented throughout the polymeric composition. The radiofrequency filter body housing also includes an electrically conductive material125coating the polymeric composition.

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