Dear Sirs,

I am looking for information regarding the temperature/frequency
dependancy upon the dielectric constant and dissipation factor for FR-4
and BT laminates (graphs, equations etc).
The information I have received so far from our suppliers are quite
coarse graphs.

Thanks in advance !

Martin Valfridsson
R&D Engineer
Ericsson Radio Systems AB
(Fax: +46 19 58 47 01)

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