SUBSTRATE, LIQUID CRYSTAL ANTENNA AND HIGH-FREQUENCY DEVICE

Title:

SUBSTRATE, LIQUID CRYSTAL ANTENNA AND HIGH-FREQUENCY DEVICE

Document Type and Number:

WIPO Patent Application WO/2019/181706

Kind Code:

A1

Abstract:

Provided is 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. This invention pertains to a substrate having a dielectric dissipation factor (A) at 20°C and 10 GHz not exceeding 0.1, a dielectric dissipation factor (B) at 20°C and 35 GHz not exceeding 0.1, and a ratio represented by {dielectric dissipation factor (C) at an arbitrarily defined temperature from -40 to 150°C and 10 GHz/the dielectric dissipation factor (A)} which falls within the range of 0.90-1.10, inclusive. In addition, this invention pertains to a substrate having a relative dielectric constant (a) at 20°C and 10 GHz of 4 to 10, inclusive, a relative dielectric constant (b) at 20°C and 35 GHz of 4 to 10, inclusive, and a ratio represented by {relative dielectric constant (c) at an arbitrarily-defined temperature of -40 to 150°C and 10GHz/the relative dielectric constant (a)} which falls within the range of 0.993 to 1.007.

Inventors:

NOMURA SHUHEI (JP)
ONO KAZUTAKA (JP)

Application Number:

PCT/JP2019/010423

Publication Date:

September 26, 2019

Filing Date:

March 13, 2019

Export Citation:

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Assignee:

AGC INC (JP)

International Classes:

C03C4/00; C03C3/091; H01P3/08; H01Q1/38

Domestic Patent References:

WO2018051793A1

2018-03-22

Foreign References:

JP2016528152A	2016-09-15
JP2010030848A	2010-02-12
JP2014504250A	2014-02-20
JP2015512852A	2015-04-30
JP2017506467A	2017-03-02
JP2017506471A	2017-03-02
JP2008049449A	2008-03-06
JP2018053081A	2018-04-05

Other References: