Loss of Gold Plated Waveguides at 210-280 GHz Abstract
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ALMA Memo # 585
Loss of Gold Plated Waveguides at 210-280 GHz
A. R. Kerr, C. Litton, G. Petencin, D. Koller, and M. Shannon
2009-01-12
The loss at 210-280 GHz of room temperature waveguides plated with BDT 200 bright gold and Pur-A-Gold 125 soft gold is within ~10% of the theoretical loss based on the DC conductivity of pure gold and the classical skin effect. This is not the case for some other types of gold plating meeting the same ASTM (or MIL) specs but in which a trace of nickel is used as a brightener.
View a pdf version of ALMA Memo #585.
