SUBSTRATE, LIQUID CRYSTAL ANTENNA AND HIGH-FREQUENCY DEVICE

• Main Authors: NOMURA SHUHEI, ONO KAZUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; ELECTRICITY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

To provide a substrate with which it is possible to reduce dielectric loss in high-frequency signals and which can be used in a stable manner across a broad range of temperatures.SOLUTION: A substrate has a dielectric loss tangent (A) as measured at 20°C and 10 GHz of 0.1 or less, a dielectric loss tangent (B) as measured at 20°C and 35 GHz of 0.1 or less, and a ratio represented by [a dielectric loss tangent (C) as measured at any temperature in a range of -40 to 150°C and at 10 GHz]/[the dielectric loss tangent (A)] of 0.993-1.007.SELECTED DRAWING: Figure 2 【課題】本発明は、高周波信号の誘電損失を低減することができ、かつ広い温度域で安定して使用可能な基板を提供する。【解決手段】本発明は、２０℃、１０ＧＨｚでの誘電正接（Ａ）が０．１以下であり、２０℃、３５ＧＨｚでの誘電正接（Ｂ）が０．１以下であり、かつ｛－４０～１５０℃における任意の温度、１０ＧＨｚでの誘電正接（Ｃ）／前記誘電正接（Ａ）｝で表される比が０．９９３～１．００７である基板に関する。【選択図】図２