CN211530179U

CN211530179U - Symmetrical FPC dipole antenna suitable for cellular network communication

Info

Publication number: CN211530179U
Application number: CN202020574287.XU
Authority: CN
Inventors: 高良平
Original assignee: Shenzhen Bogesi Communication Technology Co ltd
Current assignee: Shenzhen Bogesi Communication Technology Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-09-18
Anticipated expiration: 2030-04-16

Abstract

The utility model relates to a communication antenna technical field, in particular to symmetry FPC dipole antenna suitable for cellular network communication, the upper surface of gum layer is pasted in the lower surface of PI rete, the lower surface of copper foil layer is pasted in the upper surface of PI rete through the glue film, the copper foil layer includes left radiating element and right radiating element, left side radiating element and right radiating element use the axis of PI rete to be symmetry axis symmetric distribution in PI rete upper surface, be provided with first present a little on the left side radiating element, it presents a little to be provided with the second on the right side radiating element, first present a little and second present a little on soldering tin be connected with the radio frequency connecting wire, the radio frequency connecting wire other end passes through IPEX connector and terminal connection. Compared with the prior art, the utility model discloses a symmetry FPC dipole antenna structure is frivolous suitable for cellular network communication, and the compliance is good, and the cost is practiced thrift in the assembly of being convenient for.

Description

Symmetrical FPC dipole antenna suitable for cellular network communication

[ technical field ] A method for producing a semiconductor device

The utility model relates to a communication antenna technical field, in particular to symmetry FPC dipole antenna suitable for cellular network communication.

[ background of the invention ]

Cellular network communication is widely used in all aspects of life, and antennas are important components of wireless communication. The symmetric dipole antenna is the most widely used antenna type with the simplest structure. The two ends of the conductors close to each other are respectively connected with a feeder line.

The antenna structure in the market is more complicated at present, and under the requirement of multiband high gain high bandwidth, the area of the antenna needs to be larger, so that the requirement of the structural area of a communication terminal product is more rigorous, and the antenna can be realized by other processes and antenna forms, but the cost is increased.

[ Utility model ] content

In order to overcome the above problems, the utility model provides a can effectively solve the symmetry FPC dipole antenna who is applicable to cellular network communication of above-mentioned problem.

The utility model provides a technical scheme who above-mentioned technical problem provided is: the symmetrical FPC dipole antenna applicable to cellular network communication comprises a copper foil layer, an adhesive layer, a PI film layer, a gum layer and gum paper, wherein the gum paper is pasted on the lower surface of the gum layer, the upper surface of the gum layer is pasted on the lower surface of the PI film layer, the lower surface of the copper foil layer is pasted on the upper surface of the PI film layer through the adhesive layer, and a solder resist ink layer is coated on the upper surface of the copper foil layer; the copper foil layer comprises a left radiation unit and a right radiation unit, and the left radiation unit and the right radiation unit are symmetrically distributed on the upper surface of the PI film layer by taking the central axis of the PI film layer as a symmetry axis; be provided with first present point on the radiating element of a left side, be provided with the second on the radiating element of the right side and present the point, soldering tin is connected with the radio frequency connecting wire on first present point and the second present point, the radio frequency connecting wire other end passes through IPEX connector and terminal connection.

Preferably, second membrane areas are arranged inside the left radiation unit and the right radiation unit, one end of each second membrane area is communicated with a third membrane area, one end of each third membrane area is communicated with a fourth membrane area, one end of each fourth membrane area is communicated with a fifth membrane area, and the second membrane areas, the third membrane areas, the fourth membrane areas and the fifth membrane areas inside the left radiation unit and the right radiation unit are symmetrically distributed.

Preferably, the second membrane area is rectangular, having a length of 6.5mm and a width of 4.4 mm.

Preferably, the third membrane area is in a horizontal strip shape, and the width of the third membrane area is 0.5 mm.

Preferably, the fourth membrane area is in an inclined strip shape, and the width of the fourth membrane area is 0.7 mm.

Preferably, the fifth membrane area is in a horizontal strip shape and has a width of 0.7 mm.

Preferably, the thickness of the copper foil layer is 0.018 mm.

Preferably, the PI film layer is rectangular, and has a length of 107.2mm, a width of 12.9mm and a thickness of 0.02 mm.

Preferably, the first feed point is square with a side length of 2 mm.

Preferably, the second feed point is square with a side length of 1.5 mm.

Compared with the prior art, the symmetrical FPC dipole antenna applicable to cellular network communication has the advantages of light and thin structure, good flexibility and convenient assembly; the FPC antenna is attached to the inner shell of the wireless terminal product, so that the effective wiring area on the inner shell is fully utilized, and the cost of the antenna can be reduced; the characteristics of high gain and high bandwidth of the symmetrical dipole antenna can meet the design requirements of wireless terminal products.

[ description of the drawings ]

Fig. 1 is a front view of a symmetrical FPC dipole antenna suitable for cellular communications;

fig. 2 is a layered structure diagram of a symmetrical FPC dipole antenna suitable for cellular communications.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It should be noted that all directional indications (such as up, down, left, right, front, and back … …) in the embodiments of the present invention are limited to relative positions on a given view, not absolute positions.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1 and 2, the present invention provides a symmetric FPC dipole antenna suitable for cellular network communication, including a copper foil layer 50, a glue layer 40, a PI film layer 30, a gum layer 20 and a gum paper 10, wherein the gum paper 10 is pasted on the lower surface of the gum layer 20, the upper surface of the gum layer 20 is pasted on the lower surface of the PI film layer 30, and the lower surface of the copper foil layer 50 is pasted on the upper surface of the PI film layer 30 through the glue layer 40. The upper surface of the copper foil layer 50 is coated with a solder resist ink layer 60 for protecting the copper foil layer 50.

The copper foil layer 50 is made of electrolytic copper and comprises a left radiation unit 51 and a right radiation unit 52, and the left radiation unit 51 and the right radiation unit 52 are symmetrically distributed on the upper surface of the PI film layer 30 by taking the central axis of the PI film layer 30 as a symmetry axis.

The left radiating unit 51 is provided with a first feed point 511, the right radiating unit 52 is provided with a second feed point 521, the first feed point 511 and the second feed point 521 are connected with a radio frequency connecting line 80 through soldering, and the other end of the radio frequency connecting line 80 is connected with a terminal through an IPEX connector. The first feed point 511 and the second feed point 521 are located on the central axis of the PI film layer 30. The upper surfaces of the first feed point 511 and the second feed point 521 are provided with a nickel plating layer 91, and the upper surface of the nickel plating layer 91 is provided with a gold plating layer 92. The first feed point 511 is square and has a side length of 2 mm. The second feed point 521 is square and has a side length of 1.5 mm.

A first membrane area 31 is arranged between the left radiation unit 51 and the right radiation unit 52, and white silk-screen characters 70 are arranged on the first membrane area 31.

The left radiation unit 51 and the right radiation unit 52 are both provided with a second membrane area 31 inside, one end of the second membrane area 32 is communicated with a third membrane area 33, one end of the third membrane area 33 is communicated with a fourth membrane area 34, and one end of the fourth membrane area 34 is communicated with a fifth membrane area 35. The second, third, fourth and

fifth membrane regions

32, 33, 34 and 35 inside the left and

right radiation units

51 and 52 are symmetrically distributed.

The second membrane area 32 is rectangular, 6.5mm in length and 4.4mm in width.

The third membrane area 33 is in a horizontal strip shape, and the width is 0.5 mm.

The fourth membrane area 34 is in the shape of an inclined strip, and the width of the fourth membrane area is 0.7 mm.

The fifth membrane area 35 is in a horizontal strip shape, and the width is 0.7 mm.

The copper foil layer 50 is 0.018mm thick.

The PI film layer 30 is rectangular, the length is 107.2mm, the width is 12.9mm, and the thickness is 0.02 mm.

The back glue layer 20 is back glue 3m-9471 and is 0.05mm thick.

Be provided with the hand tear seam on the adhesive-backed paper 10, be the rectangle, length is 107.2mm, and the width is 12.9mm, and thickness is 0.1 mm.

The solder mask ink layer 60 is green and has a thickness of 0.015mm to 0.02 mm.

The thickness of the nickel plating layer 91 is 3 μm to 8 μm.

The gold-plating layer 92 has a thickness of 0.0254 μm.

When the antenna works, the antenna is attached to the inside of the terminal shell through the back glue layer 20, and the antenna can generate a circuit distribution effect in an active state to form electromagnetic field radiation.

The above description is only for the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications made within the spirit of the present invention, equivalent replacements and improvements should be included in the scope of the present invention.

Claims

1. The symmetrical FPC dipole antenna is suitable for cellular network communication and is characterized by comprising a copper foil layer, a glue layer, a PI film layer, a gum layer and gum paper, wherein the gum paper is pasted on the lower surface of the gum layer, the upper surface of the gum layer is pasted on the lower surface of the PI film layer, the lower surface of the copper foil layer is pasted on the upper surface of the PI film layer through the glue layer, and a solder resist ink layer is coated on the upper surface of the copper foil layer;

the copper foil layer comprises a left radiation unit and a right radiation unit, and the left radiation unit and the right radiation unit are symmetrically distributed on the upper surface of the PI film layer by taking the central axis of the PI film layer as a symmetry axis;

be provided with first present point on the radiating element of a left side, be provided with the second on the radiating element of the right side and present the point, soldering tin is connected with the radio frequency connecting wire on first present point and the second present point, the radio frequency connecting wire other end passes through IPEX connector and terminal connection.

2. The symmetric FPC dipole antenna for cellular communications according to claim 1, wherein the left and right radiating elements are each provided with a second hollow area inside, one end of the second hollow area is connected to the third hollow area, one end of the third hollow area is connected to the fourth hollow area, one end of the fourth hollow area is connected to the fifth hollow area, and the second hollow area, the third hollow area, the fourth hollow area and the fifth hollow area inside the left and right radiating elements are symmetrically distributed.

3. The symmetric FPC dipole antenna suitable for cellular communications according to claim 2, wherein said second hollow film region is rectangular and has a length of 6.5mm and a width of 4.4 mm.

4. The symmetric FPC dipole antenna for cellular communications according to claim 2, wherein said third membrane region is in the form of a horizontal strip having a width of 0.5 mm.

5. The symmetric FPC dipole antenna for cellular communications according to claim 4, wherein said fourth cavity region is in the form of an oblique strip having a width of 0.7 mm.

6. The symmetric FPC dipole antenna for cellular communications according to claim 4, wherein said fifth membrane region is in the form of a horizontal strip having a width of 0.7 mm.

7. The symmetric FPC dipole antenna suitable for cellular communications according to claim 1, wherein the copper foil layer is 0.018mm thick.

8. The symmetric FPC dipole antenna suitable for cellular communications according to claim 1, wherein said PI film layers are rectangular and have a length of 107.2mm, a width of 12.9mm and a thickness of 0.02 mm.

9. The symmetric FPC dipole antenna suitable for cellular communications according to claim 1, wherein said first feed point is square and 2mm in length.

10. The symmetric FPC dipole antenna suitable for cellular communications according to claim 1, wherein said second feed point is square and has a side length of 1.5 mm.