US 2026/0018795 A1 · RADIO FREQUENCY ANTENNA INCLUDING A DIELECTRIC WITH A LOW IN-FILL DENSITY AND ADDITIVE MANUFACTURING METHODS THEREFORE

Abstract

An antenna circuit may include a dielectric structure including a first surface; a second surface. and a plurality of laminae extending between the first surface and the second surface. Each lamina may include at least one thickness parameter, at least one slant parameter defining an angle between each lamina and one or more of the first surface or the second surface, and at least one pitch parameter defining an air gap between each lamina and one or more adjacent laminae. Each lamina is configured at least partially overlap the one or more adjacent laminae in a direction that is perpendicular to the first and second surfaces. The antenna circuit may include a first patch antenna disposed on the first surface. The dielectric structure may provide a selected effective permittivity for radio frequency signals from the first patch antenna in the direction that is perpendicular to the first and second surfaces.

Claims20

Dependent claims

An antenna circuit comprises:

a dielectric structure comprising:
a first surface;
a second surface;
and
a plurality of laminae extending between the first surface and the second surface, each lamina includes:
at least one thickness parameter defining a thickness of each lamina from a first end at the first surface to a second end at the second surface;
at least one slant parameter defining an angle between each lamina and one or more of the first surface or the second surface;
and
at least one pitch parameter defining an air gap between each lamina and one or more adjacent laminae of the plurality of laminate;
wherein each of the plurality of laminae is configured at least partially overlap the one or more adjacent laminae in a direction that is perpendicular to the first and second surfaces;
and
a first patch antenna disposed on the first surface;
and
wherein the dielectric structure provides a selected effective permittivity for radio frequency signals from the first patch antenna in the direction that is perpendicular to the first and second surfaces.

11 more elements

A method comprising:

forming a first planar layer of dielectric material on a circuit substrate, the first planar layer extending over a driving patch antenna of the circuit substrate;
forming a laminar structure of the dielectric material on the first planar layer, the laminar structure including a plurality of laminae, each lamina having a selected thickness and a selected height, each lamina extending from a first end at the first planar layer to a second end and at a selected slant angle relative to the first planar layer, each lamina spaced apart from adjacent laminae of the plurality of laminae by a selected pitch size, and each lamina overlapping with at least one adjacent lamina of the plurality of laminae in a direction that is perpendicular to the first planar layer;
forming a second planar layer on the laminar structure that is parallel to the first planar layer, the second planar layer extending over the plurality of laminae and coupled to the second end of each lamina;
providing a parasitic patch antenna on the second planar layer and aligned with the driving patch antenna;
and
wherein the plurality of laminae, the first planar layer, and the second planar layer present a selected effective permittivity for radio frequency signals between the driving patch antenna and the parasitic patch antenna and at an angle that is perpendicular to the first planar layer and the second planar layer.

3 more elements

Dependencies are inferred from the claim text.

Radio frequency antenna including a dielectric with a low in-fill density and additive manufacturing methods therefore

Life of this patent

Radio frequency antenna including a dielectric with a low in-fill density and additive manufacturing methods therefore

Life of this patent

Abstract

Claims20