Silica glass for radio-frequency device and radio-frequency device technical field
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United States of America Patent
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Feb 27, 2024
Grant Date -
Aug 13, 2020
app pub date -
Apr 28, 2020
filing date -
Nov 7, 2017
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Abstract
A silica glass for a radio-frequency device has an OH group concentration being less than or equal to 300 wtppm; an FQ value being higher than or equal to 90,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz; and a slope being greater than or equal to 1,000 in a case where the FQ value is approximated as a linear function of the frequency in a frequency band of higher than or equal to 20 GHz and lower than or equal to 100 GHz.
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