# US 12,009,570 B2 · Vehicle antenna glazing

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- Number: US 12,009,570 B2
- Document ID: US12009570B2
- Status: Granted
- Kind: B2
- Application number: 17/622,123
- Filed: 2020-06-25
- Published: 2022-08-18
- Granted: 2024-06-11
- Earliest claimed: 2019-06-26
- Assignees: Agc Glass Europe
- Applicants: Agc Glass Europe
- Inventors: Xavier Dardenne; Hà Bui-Van
- Web page: https://patentgrep.com/patent/US12009570B2

## CPC

- H01Q 1/1271: {for mounting on windscreens}
- H01Q 1/2291: {used in Bluetooth® or Wi-Fi® devices of Wireless Local Area Networks [WLAN] (H01Q1/241 takes precedence; WLAN in general H04W)}
- H01Q 1/40: Radiating elements coated with or embedded in protective material
- H01Q 5/357: using a single feed point
- H01Q 5/371: Branching current paths
- H01Q 5/378: Combination of fed elements with parasitic elements
- H01Q 9/0421: {with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence)}
- H01Q 9/42: with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
- H01Q 13/10: Resonant slot antennas
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

A vehicle antenna glazing that includes an antenna element. The antenna element is a WIFI antenna working at a 2.41-2.48 GHz frequencies, and the antenna element includes a planar radiating element and a planar ground element, both connected to a co-axial connector.

## Claims

### Claim 1

A vehicle antenna glazing comprising:
an antenna element,
wherein the antenna element is a wide band or multi-band WIFI antenna working at 2.41-2.48 GHz and 5.1-5.8 GHz frequencies, the antenna element comprising a planar radiating element, and a planar ground element, both connected to a co-axial connector, the antenna element being a planar inverted F antenna (PIFA) or a planar folded monopole antenna.

### Claim 2 (depends on 1)

The glazing according to claim 1, wherein the planar ground element is located between the radiating element and a closest glazing edge, and extends essentially parallel to the closest glazing edge.

### Claim 3 (depends on 1)

The glazing according to claim 1, wherein the antenna element further comprises a planar feeding structure.

### Claim 4 (depends on 1)

The glazing according to claim 1, wherein the planar radiating element and ground element are made of a planar conducting material.

### Claim 5 (depends on 3)

The glazing according to claim 3, wherein the planar radiating element, the planar ground element, and the planar feeding structure are adhered to the glazing by a thin adhesive layer.

### Claim 6 (depends on 1)

The glazing according to claim 1, wherein the planar radiating element further comprises at least one parasitic element.

### Claim 7 (depends on 4)

The glazing according to claim 4, wherein the planar radiating element, the ground plane element or extension thereof further comprises at least one slot that is etched in the conducting material.

### Claim 8 (depends on 1)

The glazing according to claim 1, wherein the glazing is a laminated windshield.

### Claim 9 (depends on 8)

The glazing according to claim 8, wherein the antenna element is provided on an outer face of inner class of the windshield.

### Claim 10 (depends on 1)

The glazing according to claim 1, wherein the glazing is a coated or heated coated windshield.

### Claim 11 (depends on 10)

The glazing according to claim 10, wherein a grid pattern is decoated locally above the antenna element.

### Claim 12 (depends on 4)

The glazing according to claim 4, wherein the planar conducting material includes a thin metal-based foil, a silver print, or a fine mesh of thin conducting wires.