Silica glass for radio-frequency device and radio-frequency device technical field
AssigneeAGC Inc.
InventorsNobutaka Kidera, Kazuya Sasaki, Yasutomi Iwahashi
Life of this patent
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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.
Claims10
A silica glass for a radio-frequency device, the silica glass having an OH group concentration being less than or equal to 300 wtppm;
- and 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 higher than or equal to 200,000 GHz at a frequency of higher than or equal to 70 GHz and lower than or equal to 100 GHz.
A silica glass for a radio-frequency device, the silica glass having an OH group concentration being less than or equal to 100 wtppm;
- and an FQ value being higher than or equal to 100,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz and higher than or equal to 200,000 GHz at a frequency of higher than or equal to 70 GHz and lower than or equal to 100 GHz.
A silica glass for a radio-frequency device, the silica glass having an OH group concentration being less than or equal to 40 wtppm;
- and an FQ value being higher than or equal to 160,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz and higher than or equal to 225,000 GHz at a frequency of higher than or equal to 70 GHz and lower than or equal to 100 GHz.
A silica glass for a radio-frequency device, the silica glass having an OH group concentration being less than or equal to 10 wtppm;
- and an FQ value being higher than or equal to 160,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz and higher than or equal to 225,000 GHz at a frequency of higher than or equal to 70 GHz and lower than or equal to 100 GHz.
Dependencies are inferred from the claim text.