US 2023/0143088 A1 · PLANAR ANTENNA BOARD

Abstract

A planar antenna board (1) comprises a dielectric (2), an antenna layer (3) formed as a conductor for a signal line on one surface of the dielectric (2), and a ground layer (4) formed as a ground conductor on the other surface of the dielectric (2). The dielectric (2) has: a low-dielectric layer (2a) arranged on the antenna-layer (3) side; an intermediate layer (2b) for which the dielectric constant is higher than that of the low-dielectric layer (2a); and an adhesive layer (2c) for which the glass transition point is higher than that of the intermediate layer (2b), and the water absorption rate is higher than that of the low-dielectric layer (2a). The low-dielectric layer (2a) is arranged on the antenna-layer (3) side with respect to the intermediate layer (2b), and the adhesive layer (2c) is arranged on the ground-layer (4) side with respect to the intermediate layer (2b).

Claims2

Dependent claims

A planar antenna board comprising:

a dielectric;
an antenna layer, which is formed as a conductor for a signal line on one side of the dielectric;
and
a ground layer formed as a ground conductor on another side of the dielectric, wherein
the dielectric includes:
a low-dielectric layer arranged on a side of the antenna layer;
an intermediate layer that has higher permittivity than the low-dielectric layer;
and a bonding layer that has higher glass transition point than the intermediate layer and has higher water absorption coefficient than the low-dielectric layer;
the low-dielectric layer is arranged on the side of the antenna layer in relation to the intermediate layer;
and
the bonding layer is arranged on a side of the ground layer in relation to the intermediate layer.

8 more elements

Dependencies are inferred from the claim text.

Planar antenna board

Life of this patent

Planar antenna board

Life of this patent

Abstract

Claims2