Eyewear with slot-ring antenna

Patent metadata

Field	Value
Publication number	US-11929548-B2
Application number	US-202117386716-A
Country	US
Kind code	B2
Filing date	Jul 28, 2021
Priority date	Jul 28, 2021
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

Eyewear with a slot ring antenna generating E-fields that are orthogonal to each other at a frequency. The slot ring antenna has a first portion including an inner ring and an outer ring configured to generate a first E-field in a first direction, and a second portion having a respective inner ring and the outer right configured to generate a second E-field in a second direction that is orthogonal to the first E-field. The outer ring encompasses the respective inner rings, where a first slot is defined between the respective inner ring and the outer ring. A second slot is encompassed by the respective inner ring, and it may be a cutout. The slot ring antenna encompasses eyewear optical assemblies. In one example, the slot antenna first portion encompasses a first optical assembly, and the second portion encompasses the second optical assembly. The outer ring may comprise of a common ground plane, which ground plane may extend proximate a bridge of the eyewear. The two portions of the antenna co-exist in very close proximity to each other and support the same frequency band with minimal coupling to each other due to the orthogonal E-fields.

First claim

What is claimed is:

1. An eyewear, comprising:
a frame;
a see-through display supported by the frame and configured to generate images; and
a slot antenna coupled to the frame and configured to communicate wireless signals at a first frequency, wherein the slot antenna has a first portion and a second portion each configured to generate a respective radiating E-field in a direction that is orthogonal to the other, wherein the first portion has a first inner ring, and the second portion has a second inner ring, wherein an outer ring encompasses the first inner ring and the second inner ring; wherein the first portion and the second portion each have a respective antenna feed and a ring-short configured to create the respective radiating E-fields that are orthogonal to each other.

2. The eyewear of claim 1 , further comprising an inner slot encompassed by first inner ring, and an outer slot positioned between the first portion first inner ring and the outer ring.

3. The eyewear of claim 1 , wherein the ring-shorts of the first portion and the second portion are offset 90 degrees with respect to one another.

4. The eyewear of claim 1 , wherein the antenna feed of the first portion is offset 90 degrees with respect to the first portion ring-short.

5. An eyewear, comprising:
a frame; a see-through display supported by the frame and configured to generate images; and
a slot antenna coupled to the frame and configured to communicate wireless signals at a first frequency, wherein the slot antenna has a first portion and a second portion each configured to generate a respective radiating E-field in a direction that is orthogonal to the other, wherein the eyewear comprises a first optical assembly and a second optical assembly, wherein the first portion encompasses the first optical assembly and the second portion encompasses the second optical assembly.

6. The eyewear of claim 5 , wherein the first optical assembly and the second optical assembly include the see-through display.

7. The eyewear of claim 6 , wherein the first portion and the second portion share a common ground plane.

8. The eyewear of claim 7 , wherein the frame has a bridge extending between the first optical assembly and the second optical assembly, wherein the common ground plane extends along the bridge.

9. A method of using eyewear, the eyewear having a frame, a see-through display supported by the frame and configured to generate images, and a slot antenna coupled to the frame and configured to communicate wireless signals at a first frequency, wherein the slot antenna has a first portion and a second portion each configured to generate a respective radiating E-field that is orthogonal to the other, comprising:
the first portion radiating a first E-field in a first direction; and
the second portion radiating a second E-field in a second direction that is orthogonal to the first direction, wherein the first portion has a first inner ring, and the second portion has a second inner ring, wherein an outer ring encompasses the first inner ring and the second inner ring; wherein the first portion and the second portion each have a respective antenna feed and a ring-short configured to create the respective radiating E-fields that are orthogonal to each other.

10. The method of claim 9 , further comprising an inner slot encompassed by the first inner ring, and an outer slot positioned between the first inner ring and the outer ring.

11. The method of claim 9 , wherein the ring-shorts of the first portion and the second portion are offset 90 degrees with respect to one another.

12. The method of claim 9 , wherein the antenna feed of the first portion is offset 90 degrees with respect to the first portion ring-short.

13. A method of using eyewear, the eyewear having a frame, a see-through display supported by the frame and configured to generate images, and a slot antenna coupled to the frame and configured to communicate wireless signals at a first frequency, wherein the slot antenna has a first portion and a second portion each configured to generate a respective radiating E-field that is orthogonal to the other, comprising:
the first portion radiating a first E-field in a first direction; and
the second portion radiating a second E-field in a second direction that is orthogonal to the first direction, wherein the eyewear comprises a first optical assembly and a second optical assembly, wherein the first portion encompasses the first optical assembly and the second portion encompasses the second optical assembly.

14. The method of claim 13 , wherein the first portion and the second portion share a common ground plane.

15. The method of claim 14 , wherein the frame has a bridge extending between the first optical assembly and the second optical assembly, wherein the common ground plane extends along the bridge.

Assignees

• Hintermann Mathias
• Olgun Ugur
• Simons Patrick Timothy Mcsweeney
• Snap Inc

Inventors

• Hintermann Mathias
• Olgun Ugur
• Simons Patrick Timothy Mcsweeney

Classifications

• H01Q1/273 Primary

  Adaptation for carrying or wearing by persons or animals · CPC title

• G02B27/0176 Primary

  characterised by mechanical features · CPC title

• G02C11/10 Primary

  Electronic devices other than hearing aids · CPC title

• H01Q13/10

  Resonant slot antennas · CPC title

• G02B2027/0178

  Eyeglass type (eyeglass details G02C) · CPC title