Electrical Performance Evaluation Of High-Frequency Laminates As A Function Of Temperature And HumidityAuthor: Brian Wright
Company: Agilent Technologies
Date Published: 10/13/2013 Conference: SMTA International
This study measures electrical performance of stripline bandpass filters at 0% and 85% relative humidity (RH). These measurements were initially taken at 25°C and 55°C on a dry board. After 230 days of 85°C / 85% RH, the boards were measured again at 25°C and 55°C. Electrical performance measurements were taken using an Agilent vector network analyzer (VNA), located immediately outside an environmental test chamber. The VNA recorded S-parameters of filters located inside the test chamber. S21 measurements were used to compare filter response, and S11 measurements were used to verify proper connections and PCB manufacturing.
PCB laminate material, bandpass filter, temperature humidity dependency
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