Transparent uniplanar antenna

Patent metadata

Field	Value
Publication number	US-12586908-B2
Application number	US-202418421385-A
Country	US
Kind code	B2
Filing date	Jan 24, 2024
Priority date	Jan 24, 2023
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

The disclosed antenna device may include a substrate and a uniplanar transparent conductive material on the substrate. The uniplanar transparent conductive material may include an active segment, a capacitive active segment to capacitively feed the active segment and separated from the active segment by a dummy segment, and a tuning active segment configured with dimensions to create a substantially 90-degree phase difference between electric field components of two edges the active segment when the antenna device resonates at a desired frequency. Various other methods, systems, and computer-readable media are also disclosed.

First claim

What is claimed is:

1 . A device comprising:
an antenna comprising: a substrate, and a uniplanar transparent conductive material on the substrate comprising:
an active segment;
a dummy segment; and
a capacitive active segment to capacitively feed the active segment, wherein the capacitive active segment is separated from the active segment by the dummy segment and is coupled to a coplanar waveguide (CPW) feed.

2 . The device of claim 1 , wherein the active segment comprises a first edge connected to a second edge, and a first surface current of the first edge is substantially perpendicular to a second surface current of the second edge.

3 . The device of claim 2 , further comprising a tuning active segment configured with dimensions to create a substantially 90-degree phase difference between the first surface current and the second surface current when the antenna resonates at a desired frequency.

4 . The device of claim 3 , further wherein the capacitive active segment is located proximate to a tuning active segment within the antenna.

5 . The device of claim 4 , wherein the dummy segment comprises a metal mesh material having one or more cells forming an open-circuit structure.

6 . The device of claim 4 , wherein the capacitive active segment is located on a same side as the tuning active segment with respect to the antenna.

7 . The device of claim 1 , wherein the uniplanar transparent conductive material comprises a metal mesh material.

8 . The device of claim 7 , wherein the active segment corresponds to a perimeter of the antenna that at least partially surrounds the dummy segment.

9 . The device of claim 8 , wherein the active segment at least partially surrounds at least one other active segment.

10 . The device of claim 9 , wherein a density of the metal mesh material for the active segment is denser than a density of the metal mesh material for the at least one other active segment.

11 . The device of claim 7 , wherein the active segment corresponds to a closed- circuit structure of the metal mesh material and the dummy segment corresponds to an open circuit structure of the metal mesh material.

12 . The device of claim 7 , wherein the dummy segment comprises the metal mesh material having cut cells.

13 . A system comprising:
at least one physical processor; physical memory comprising computer-executable instructions; and an antenna comprising:
a substrate; and
a uniplanar transparent conductive material on the substrate comprising:
an active segment;
a dummy segment; and
a capacitive active segment to capacitively feed the active segment, wherein the capacitive active segment is coupled to a coplanar waveguide (CPW) feed and is separated from the active segment by the dummy segment.

14 . The system of claim 13 , wherein the antenna further comprises:
a tuning active segment configured with dimensions to create a substantially 90-degree phase difference between a first surface current of a first edge of the active segment and a second surface current of a second edge of the active segment, when the antenna resonates at a desired frequency.

15 . The system of claim 14 , wherein:
the active segment corresponds to a perimeter of the antenna that at least partially surrounds the dummy segment, the capacitive active segment, and the tuning active segment; the capacitive active segment is separated from the active segment and the tuning active segment by the dummy segment; the active segment comprises the first edge connected to the second edge; and the first surface current of the first edge is substantially perpendicular to the second surface current of the second edge.

16 . The system of claim 15 , wherein the capacitive active segment is located on a same side as the tuning active segment within the perimeter of the antenna.

17 . The system of claim 14 , wherein:
the uniplanar transparent conductive material comprises a metal mesh material; and a density of the metal mesh material for the active segment is denser than a density of the metal mesh material for the tuning active segment and the capacitive active segment.

18 . The system of claim 17 , wherein the active segment corresponds to a closed-circuit structure of the metal mesh material and the dummy segment corresponds to an open circuit structure of the metal mesh material.

19 . A method comprising:
receiving a signal by a capacitive active segment of an antenna from a waveguide device; and capacitively feeding a perimeter active segment of the antenna based on the received signal; wherein the capacitive active segment is conductively separated from the perimeter active segment by a dummy segment, the capacitive segment to capacitively feed the active segment, wherein the capacitive active segment is coupled to a coplanar waveguide (CPW) feed, and wherein the antenna comprises a uniplanar transparent conductive material on a substrate.

20 . The method of claim 19 , further comprising generating a substantially 90-degree phase difference between a first electric field component of a first edge of the perimeter active segment and a second electric field component of a second edge of the perimeter active segment using a tuning active segment coupled to the first and second edges when the antenna resonates at a desired frequency.

Assignees

• Meta Platforms Tech Llc

Inventors

• Huang Wei
• Morimoto Yasuo
• Zhu Jiang
• Shiu Boon

Classifications

• H01Q9/045

  with particular feeding means (for circular polarisation H01Q9/0428) · CPC title

• H01Q9/0442 Primary

  with particular tuning means · CPC title