CN-224204357-U - Transparent antenna

Abstract

The application relates to the technical field of wireless communication, in particular to a transparent antenna, which comprises a protective layer, a first transparent antenna layer, a second transparent antenna layer and a flexible printed circuit, wherein the first transparent antenna layer comprises a plurality of first antenna bodies arranged along a first direction, the second transparent antenna layer comprises a plurality of second antenna bodies arranged along a second direction, at least one end of each first antenna body is provided with a first pin, at least one end of each second antenna body is provided with a second pin, the first antenna body is directly and electrically connected with the flexible printed circuit through the first pins, and the second antenna body is directly and electrically connected with the flexible printed circuit through the second pins. According to the transparent antenna provided by the application, the pins are arranged at the end part of the antenna body and are connected with the flexible printed circuit, so that the impedance of the connection part of the antenna body and the external detection circuit and the overall impedance of the transparent antenna are reduced.

Inventors

• CHEN XIAO

Assignees

• 深圳绘王趋势科技股份有限公司

Dates

Publication Date

20260505

Application Date

20250617

Claims (10)

1. 1. The utility model provides a transparent antenna, its characterized in that includes protective layer, first transparent antenna layer, second transparent antenna layer and flexible printed circuit, first transparent antenna layer includes a plurality of first antenna bodies of arranging along first direction, the second transparent antenna layer includes a plurality of second antenna bodies of arranging along the second direction, at least one end of first antenna body is equipped with first pin, at least one end of second antenna body is equipped with the second pin, first antenna body passes through first pin with flexible printed circuit direct electric connection, second antenna body passes through second pin with flexible printed circuit direct electric connection.
2. 2. The transparent antenna of claim 1, wherein the flexible printed circuit comprises a first flexible printed circuit and a second flexible printed circuit, the first flexible printed circuit being electrically connected to the first transparent antenna body through the first pin, the second flexible printed circuit being electrically connected to the second transparent antenna body through the second pin.
3. 3. The transparent antenna of claim 1, wherein the protective layer is a transparent material or the protective layer is glass.
4. 4. The transparent antenna of claim 1, wherein the first transparent antenna layer comprises a first transparent dielectric layer and a first transparent antenna body disposed on the first transparent dielectric layer, and the second transparent antenna layer comprises a second transparent dielectric layer and a second transparent antenna body disposed on the second transparent dielectric layer.
5. 5. The transparent antenna of claim 1, wherein the first transparent antenna body is a silver nanomaterial, the second transparent antenna body is a silver nanomaterial, and the first pin and the second pin are silver nanomaterials.
6. 6. The transparent antenna of claim 4, wherein the first transparent dielectric layer is a polyethylene terephthalate film material and the second transparent dielectric layer is a polyethylene terephthalate film material.
7. 7. The transparent antenna of claim 4, wherein the first transparent antenna layer and the second transparent antenna layer are bonded by optical glue, the first antenna body and the second antenna body are vertically formed in a mesh shape with each other, and the first antenna body and the second antenna body are not in contact with each other.
8. 8. The transparent antenna according to any one of claims 1-7, wherein the protective layer is provided with a shielding edge dividing the transparent antenna into a visible area and a non-visible area.
9. 9. The transparent antenna of claim 8, wherein the first transparent antenna body and the second transparent antenna body are positioned in the viewable area, and the first pin and the second pin are positioned in the non-viewable area.
10. 10. The transparent antenna of claim 9, wherein the flexible printed circuit is located in the non-viewable area.

Description

Transparent antenna [ Field of technology ] The application relates to the technical field of wireless communication, in particular to a transparent antenna. [ Background Art ] An optically transparent antenna is one that is made of a specific optically transparent conductive material and has a transparent appearance. The current transparent antenna structure for electromagnetic touch handwriting screen or capacitive touch handwriting screen mainly comprises a transparent conductive layer formed on the surface of a medium substrate. In order to realize connection between the transparent conductive layer and the detection circuit in the transparent antenna, a narrow frame area is generally arranged around the dielectric substrate, and a conductive connector of silver nanomaterial in a dense grid shape is arranged in the narrow frame area and used for connecting the conductive layer of the transparent antenna and the detection circuit. The dense grid-shaped conductive connectors in the narrow frame area have higher impedance and even higher impedance than the transparent conductive layer, so that the overall impedance of the transparent antenna structure is increased. Therefore, it is desirable to provide a new transparent antenna to solve the problem of higher impedance caused by the narrow frame trace. [ utility model ] In order to solve the problem of higher impedance caused by the narrow frame wiring, the application provides a novel transparent antenna. The utility model provides a transparent antenna, includes protective layer, first transparent antenna layer, second transparent antenna layer and flexible printed circuit, first transparent antenna layer includes a plurality of first antenna bodies of arranging along first direction, the second transparent antenna layer includes a plurality of second antenna bodies of arranging along the second direction, at least one end of first antenna body is equipped with first pin, at least one end of second antenna body is equipped with the second pin, first antenna body passes through first pin with flexible printed circuit direct electric connection, second antenna body passes through second pin with flexible printed circuit direct electric connection. Further, the flexible printed circuit comprises a first flexible printed circuit and a second flexible printed circuit, the first flexible printed circuit is electrically connected with the first transparent antenna body through the first pin, and the second flexible printed circuit is electrically connected with the second transparent antenna body through the second pin. Further, the protective layer is a transparent material or the protective layer is glass. Further, the first transparent antenna layer comprises a first transparent dielectric layer and a first transparent antenna body arranged on the first transparent dielectric layer, and the second transparent antenna layer comprises a second transparent dielectric layer and a second transparent antenna body arranged on the second transparent dielectric layer. Further, the first transparent antenna body is made of silver nanomaterial, the second transparent antenna body is made of silver nanomaterial, and the first pin and the second pin are made of silver nanomaterial. Further, the first transparent dielectric layer is made of polyethylene terephthalate film material, and the second transparent dielectric layer is made of polyethylene terephthalate film material. Further, the first transparent antenna layer and the second transparent antenna layer are bonded by optical glue, the first antenna body and the second antenna body are perpendicular to each other to form a grid shape, and the first antenna body and the second antenna body are not in contact with each other. Further, the protective layer is provided with a shielding edge, and the shielding edge divides the transparent antenna into a visible area and a non-visible area. Further, the first transparent antenna body and the second transparent antenna body are located in the visible area, and the first pin and the second pin are located in the non-visible area. Further, the flexible printed circuit is located in the non-viewable area. Compared with the prior art, the pin is arranged at the end part of the antenna body, the pin is connected with the flexible printed circuit, the flexible printed circuit board is used for replacing the dense grid-shaped conductive connector, the impedance of the flexible printed circuit is smaller than the state impedance of the dense grid-shaped conductive connector in the narrow frame area, and the impedance of the joint of the antenna body and an external detection circuit and the overall impedance of the transparent antenna are reduced. Under the same use condition, the driving power of the transparent antenna can be reduced, the electromagnetic handwriting sensitivity is improved, and the signal-to-noise ratio is improved. The same pins are arranged at the two ends of