CRYSTALLIZED GLASS, GLASS SUBSTRATE FOR HIGH FREQUENCY DEVICE, HIGH FREQUENCY FILTER DEVICE, LIQUID CRYSTAL ANTENNA, AMORPHOUS GLASS AND METHOD FOR PRODUCING CRYSTALLIZED GLASS

The present invention relates to a crystallized glass wherein: the rate of change ΔDk (/°C) of relative permittivity with temperature at 10 GHz, which is defined by formula (A) and calculated in accordance with formula (A), is -50 ppm (/°C) to 50 ppm (/°C); and the total content of alkali metal oxid...

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Bibliographic Details
Main Authors NIWANO Kazuhiko, KIDERA Nobutaka, KANEHARA Kazuki
Format Patent
LanguageEnglish
French
Japanese
Published 20.07.2023
Subjects
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Summary:The present invention relates to a crystallized glass wherein: the rate of change ΔDk (/°C) of relative permittivity with temperature at 10 GHz, which is defined by formula (A) and calculated in accordance with formula (A), is -50 ppm (/°C) to 50 ppm (/°C); and the total content of alkali metal oxides R2O is 3.0% or less in terms of oxides by molar percentage. La présente invention se rapporte à un verre cristallisé : le taux de changement ΔDk (/°C) de permittivité relative avec une température à 10 GHz, qui est défini par la formule (A) et calculé selon la formule (A), étant de -50 ppm (/°C) à 50 ppm (/°C) ; et la teneur totale des oxydes de métal alcalin R2O étant de 3,0 % ou moins en termes d'oxydes par pourcentage molaire. 本発明は、10GHzにおける比誘電率の温度による変化率ΔDk(/℃)を下記式(A)としたときに、前記式(A)によって、算出される値が-50ppm(/℃)~50ppm(/℃)であり、酸化物基準のモル百分率表示でアルカリ金属酸化物R2Oの合計含有量が3.0%以下である結晶化ガラスに関する。
Bibliography:Application Number: WO2023JP00236