CN207977457U - The three of surface adhesive type stack antenna - Google Patents

Abstract

The utility model discloses a surface-adhesive three-stack antenna, comprising: a first antenna, a second antenna, a third antenna and a circuit board; sequentially, the first antenna, the second antenna and the After the third antenna is stacked on the circuit board, the third feeding component on the third antenna passes through the second antenna, the first antenna and the circuit board and is electrically connected to the circuit board, the second The two second feed-in components on the antenna pass through the first antenna and the circuit board and are electrically connected to the circuit board, and the two first feed-in components on the first antenna pass through the circuit board and are connected to the circuit board The circuit board is electrically connected; use the first radiating metal layer of the first antenna, the second radiating metal layer of the second antenna, and the third radiating metal layer of the third antenna to receive signals of different communication systems, and can be surface-mounted The method is electrically connected to the main board of the electronic device, which can greatly reduce the manpower of assembly, improve efficiency and ease of use.

Description

Surface Mount Triple Stack Antenna

technical field

The utility model relates to an antenna, in particular to a surface-adhesive three-stack antenna for multi-frequency bands.

Background technique

Traditional portable GPS systems have a built-in receiving antenna structure for receiving GPS signals. The receiving antenna structure of this GPS system is a pin-type flat antenna structure. The planar antenna structure has a substrate of ceramic dielectric, the surface of the substrate has a radiating metal layer, the bottom surface of the substrate has a grounding metal layer, and a through hole is opened on the substrate, and the through hole penetrates the radiating metal layer and the grounding metal layer, the through-hole is provided with a needle-shaped signal feeder to pass through, and after the signal feeder passes through the substrate, it is electrically connected to the radiation metal layer, and is not electrically connected to the ground metal layer, To form a planar antenna structure that can be electrically fixed on the main board of the electronic device.

Since this kind of pin-type flat-panel antenna structure is only suitable for receiving signals of a single system, and the substrate used is cube-shaped, resulting in a large volume, it cannot be installed on a new generation of light, thin, and small portable electronic devices. When soldering with the main board of electronic devices, it may not be possible to satisfy the large-volume ceramic medium substrate to achieve a uniform temperature sufficient for soldering due to the temperature curve, causing troubles in soldering processing. Moreover, when the pin-type planar antenna structure is electrically fixed with the main board of the electronic device, the pin-type planar antenna structure needs to be glued and hand-welded, and cannot be machined.

Utility model content

Therefore, the main purpose of the present utility model is to solve the traditional deficiencies. The utility model is to provide a three-stacked planar antenna that is adhered to the surface by combining a circuit board and three stacked planar antennas, which can receive signals from different systems. Moreover, the three-stacked planar antenna is electrically connected to the main board of the electronic device in a surface-adhesive manner, which can greatly reduce manpower for assembly, and improve efficiency and ease of use.

To achieve the above purpose, the utility model provides a surface-mounted three-stack antenna, including: a first antenna, a second antenna, a third antenna and a circuit board. The first antenna has a first substrate, the surface of the first substrate has a first radiation metal layer, the bottom surface of the first substrate has a ground metal layer, and the first antenna has two A first feed-in component of a base body, the two first feed-in components pass through the first base body and are electrically connected to the first radiation metal layer, the two first feed-in components pass through the bottom surface of the first base body Not electrically connected to the ground metal layer. There is a second substrate on the second antenna, the second substrate is disposed on the surface of the first radiating metal layer of the first substrate, and there is a second radiating metal layer on the surface of the second substrate, the second antenna There are two second feed-in components, the two second feed-in components pass through the second base body and the first base body and are electrically connected with the second radiation metal layer, the two second feed-in components pass through The outside of the bottom surface of the first substrate is not electrically connected to the ground metal layer. There is a third substrate on the third antenna, the third substrate is arranged on the surface of the second radiating metal layer of the second substrate, a third radiating metal layer is arranged on the surface of the third substrate, the third antenna There is a third feed-in component, after the third feed-in component is electrically connected with the third radiating metal layer, and passes through the third base, the second base and the first base respectively, and the third feed-in component The outside of the bottom surface of the first substrate is not electrically connected to the ground metal layer. The circuit board is electrically connected with the third feed-in component passing through the third base, the second base and the first base, the two second feed-in components and the two first feed-in components.

In one embodiment of the present utility model, a first through hole, a second through hole, a third through hole, a fourth through hole and a fifth through hole are opened on the first substrate, and the first through hole The holes, the second through hole, the third through hole, the fourth through hole and the fifth through hole pass through the first substrate, the first radiation metal layer and the ground metal layer, and are arranged in a cross shape.

In an embodiment of the present invention, the two first feeding components pass through the first base through the fourth through hole and the fifth through hole.

In one embodiment of the present invention, the second substrate is provided with a sixth through hole, a seventh through hole and an eighth through hole penetrating through the second substrate and the second radiating metal layer. The six through holes, the seventh through hole and the eighth through hole respectively correspond to the first through hole, the second through hole and the third through hole of the first substrate.

In an embodiment of the present invention, after the two second feed-in components respectively pass through the seventh through hole and the eighth through hole and are electrically connected with the second radiation metal layer, the two second feed-in components The feed-in component respectively passes through the second through hole and the third through hole and extends outside the bottom surface of the first base without being electrically connected to the ground metal layer.

In an embodiment of the present invention, the third base is provided with a ninth through hole penetrating through the third base and the third radiating metal layer, and the ninth through hole corresponds to the sixth through hole of the second base. hole and the first through hole of the first substrate.

In an embodiment of the present utility model, the third feeding component passes through the ninth through hole of the third base, the sixth through hole of the second base and the first through hole of the first base to the first through hole The outside of the bottom surface of a substrate is electrically connected to the third radiating metal layer when the third feed-in component passes through the ninth through hole, and the third feed-in component passes through the outside of the bottom surface of the first substrate and is not connected to the The ground metal layer is electrically connected.

In an embodiment of the present invention, the third feed-in component is T-shaped, and the third feed-in component has a head extending from a rod body.

In one embodiment of the present invention, the circuit board has a front and a back, and the circuit board also has a first through hole, a second through hole, a third through hole, a fourth through hole and a fifth through hole, The first through hole, the second through hole, the third through hole, the fourth through hole and the fifth through hole respectively correspond to the first through hole, the second through hole, the third through hole, the fourth through hole and the the fifth through hole.

In one embodiment of the present invention, the first through hole, the second through hole, the third through hole, the fourth through hole and the fifth through hole each have an electrical contact on the back surface, and each electrical contact One end extends an electrical connection point, the two first feed-in components, the two second feed-in components and the third feed-in component pass through the outside of the bottom surface of the first substrate of the first antenna, and sequentially pass through The fourth through hole, the fifth through hole, the second through hole, the third through hole and the first through hole are electrically connected to the electrical contacts on the back of the circuit board.

In an embodiment of the present invention, the area of the second base is smaller than the area of the first radiating metal layer, and when the second base is arranged on the surface of the first radiating metal layer, the first radiating metal layer exposed.

In an embodiment of the present invention, the area of the third base is smaller than the area of the second radiating metal layer, and when the third base is arranged on the surface of the second radiating metal layer, the second radiating metal layer exposed.

In an embodiment of the present utility model, the first base body, the second base body and the third base body are flat plate-shaped bodies or block-shaped bodies made of ceramic dielectric materials.

Description of drawings

Fig. 1 is the exploded schematic view of the three-stack antenna of the surface mount type of the present invention;

Fig. 2 is the back schematic diagram of the circuit board in the utility model;

FIG. 3 is a schematic diagram of a surface-mounted three-stack antenna assembly of the present invention;

Fig. 4 is a schematic side sectional view of a surface-mounted three-stack antenna of the present invention;

5 is a schematic diagram of a first state in which the surface-mounted three-stack antenna of the present invention is electrically fixed to the main board of the electronic device;

6 is a schematic diagram of a second state in which the surface-mounted three-stack antenna of the present invention is electrically fixed to the main board of the electronic device.

Explanation of symbols in the accompanying drawings:

10 surface-mounted three-stack antenna; 1 first antenna; 11 first substrate; 12 first radiation metal layer; 13 ground metal layer; 14 first through hole; 15 second through hole; 16 third through hole; 17 The fourth through hole; 18 The fifth through hole; 19a, 19b The first feeding component; 2 The second antenna; 21 The second substrate; 22 The second radiation metal layer; 23 The sixth through hole; 24 The seventh through hole; 25 8th through hole; 26a, 26b second feeding component; 3 third antenna; 31 third substrate; 32 third radiation metal layer; 33 ninth through hole; 34 third feeding component; 341 head; 342 rod body ; 4 circuit board; 41 front; 42 back; 43 first perforation; 44 second perforation; 45 third perforation; 46 fourth perforation; 47 fifth perforation; 48 electrical contacts;

Detailed ways

Relevant technical content and detailed description of the present utility model, cooperate drawing description now as follows:

Please refer to FIGS. 1 to 4 , which are schematic diagrams of disassembly, assembly, side section and the back of the circuit board of the surface-mounted three-stack antenna of the present invention. As shown in the figure: the surface-mounted three-stack antenna 10 of the present invention includes: a first antenna 1 , a second antenna 2 , a third antenna 3 and a circuit board 4 . Wherein, the first antenna 1, the second antenna 2 and the third antenna 3 are stacked to form a three-stack antenna 10 of an approximately cone-shaped surface mount type, hereinafter referred to as the three-stack antenna 10, and the three-stack antenna 10 is electrically Permanently fixed on the circuit board 4 to form a surface-mounted three-stack antenna 10 that can be surface-mounted to the main board (not shown in the figure) of the electronic device.

The first antenna 1 has a first substrate 11 on it, the surface of the first substrate 11 has a first radiation metal layer 12, the bottom surface of the first substrate 11 has a ground metal layer 13, the first substrate 11 Provide a first through hole 14, a second through hole 15, a third through hole 16, a fourth through hole 17 and a fifth through hole 18, the first through hole 14, the second through hole 15 , the third through hole 16 , the fourth through hole 17 and the fifth through hole 18 pass through the first substrate 11 , the first radiation metal layer 12 and the ground metal layer 13 and are arranged in a cross shape. In addition, the first antenna 1 also includes two first feeding components 19a, 19b, and the two first feeding components 19a, 19b pass through the fourth through hole 17 and the fifth through hole 18. The first base body 11 is also electrically connected to the first radiation metal layer 12 , and is not electrically connected to the ground metal layer 13 after the two first feeding components 19 a , 19 b pass through the outside of the bottom surface of the first base body 11 . In this drawing, the first substrate 11 is a flat plate or block made of ceramic dielectric material.

The second antenna 2 has a second substrate 21 disposed on the surface of the first radiation metal layer 12 of the first substrate 11. The area of the second substrate 21 is smaller than that of the first radiation The area of the metal layer 12 exposes the first radiating metal layer 12 when the second base 21 is disposed on the surface of the first radiating metal layer 12 . In addition, there is a second radiating metal layer 22 on the surface of the second base 21, and the second base 21 is provided with a sixth through hole 23 penetrating through the second base 21 and the second radiating metal layer 22, a The seventh through hole 24 and an eighth through hole 25, the sixth through hole 23, the seventh through hole 24 and the eighth through hole 25 respectively correspond to the first through hole 14, the second through hole 11 of the first substrate 11. The through hole 15 and the third through hole 16 . The second antenna 2 also includes two second feed-in components 26a, 26b, the two second feed-in components 26a, 26b pass through the seventh through hole 24 and the eighth through hole 25 respectively and communicate with the second After the radiation metal layer 22 is electrically connected, the two second feed-in components 26a, 26b pass through the second through hole 15 and the third through hole 16 respectively and extend outside the bottom surface of the first substrate 11 without contact with The ground metal layer 13 is electrically connected. In this drawing, the second substrate 21 is a flat plate or block made of ceramic dielectric material.

The third antenna 3 has a third substrate 31 disposed on the surface of the second radiating metal layer 22 of the second substrate 21, and the area of the third substrate 31 is smaller than that of the second radiating metal layer. The area of the metal layer 22 exposes the second radiating metal layer 22 when the third base 31 is disposed on the surface of the second radiating metal layer 22 . In addition, there is a third radiating metal layer 32 on the surface of the third base body 31, and a ninth through hole 33 penetrating through the third base body 31 and the third radiating metal layer 32 is provided on the third base body 31. The ninth through hole 33 corresponds to the sixth through hole 23 of the second base 21 and the first through hole 14 of the first base 11 . The third antenna 3 also includes a third feed component 34, the third feed component 34 is T-shaped, the third feed component 34 has a head 341, the head 341 extends a rod 342, the rod 342 passes through the ninth through hole 33 of the third base 31 , the sixth through hole 23 of the second base 21 and the first through hole 14 of the first base 11 to the outside of the bottom surface of the first base 11 . When the third feeding component 34 passes through the ninth through hole 33, it is electrically connected with the third radiation metal layer 32, and when the third feeding component 34 passes through the outside of the bottom surface of the first substrate 11, it does not connect with the third feeding component 34. The ground metal layer 13 is electrically connected. In this drawing, the third substrate 31 is a flat plate or block made of ceramic dielectric material.

The circuit board 4 has a front side 41 and a back side 42, the front side 41 is a bonding area, any one of viscose or double-sided adhesive can be laid, the circuit board 4 has a first perforation 43, a The second through hole 44, a third through hole 45, a fourth through hole 46 and a fifth through hole 47, the first through hole 43, the second through hole 44, the third through hole 45, the fourth through hole 46 and the fifth through hole The through holes 47 respectively correspond to the first through hole 14 , the second through hole 15 , the third through hole 16 , the fourth through hole 17 and the fifth through hole 18 . The first through hole 43 , the second through hole 44 , the third through hole 45 , the fourth through hole 46 and the fifth through hole 47 each have an electrical contact 48 on the back surface 42 , and one end of each electrical contact 48 extends There is an electrical fixed point 49 . After the two first feed-in components 19a, 19b, the two second feed-in components 26a, 26b and the third feed-in component 34 pass through the outside of the bottom surface of the first substrate 11 of the first antenna 1, then Pass through the fourth through hole 46 , the fifth through hole 47 , the second through hole 44 , the third through hole 45 and the first through hole 43 in sequence and electrically connect with the electrical contacts 48 on the back surface 42 of the circuit board 4 . Then, through the electrical fixing point 49 of the circuit board 4, it is electrically fixed to the main board (not shown in the figure) of the electronic device.

Please refer to FIG. 4 , which is a schematic side sectional view of the surface-mounted three-stack antenna of the present invention. As shown in the figure: after the first base body 11, the second base body 21 and the third base body 31 of the present utility model are sequentially stacked, the two first feed-in components 19a, 19b, the two second feed-in components The feed-in components 26a, 26b and the third feed-in component 34 respectively pass through the first through hole 43, the second through hole 44, the third through hole 45, the fourth through hole 46 and the fifth through hole 47 and the circuit board 4 After the electrical contacts 48 are connected, a surface-mounted three-stack antenna with the first antenna 1 , the second antenna 2 and the third antenna 3 together is formed.

After the first antenna 1 , the second antenna 2 and the third antenna 3 are stacked, the first antenna 1 can receive the GPSL5/L2 signal at a frequency of _1100MHZ - _1250MHZ . The second antenna 2 can receive GPS/GNSS/Beidou signals with a frequency of _1500MHZ - _1650MHZ . The third antenna 3 can receive SDARS/WLAN signals with a frequency of _2300MHZ - _2500MHZ .

Please refer to FIGS. 5 and 6 , which are schematic views of the first and second states of the surface-mounted three-stack antenna of the present invention being electrically fixed to the main board of the electronic device. As shown in the figure: when the first antenna 1, the second antenna 2, and the third antenna 3 of the present invention are combined with the circuit board 4 to form a surface-mounted three-stack antenna 10, the back of the circuit board 4 After the electrical fixed point 49 is electrically connected to the main board 20 of the electronic device, the two first feed-in components 19a, 19b, the two second feed-in components 26a, 26b and the third feed-in component 34 receive The signal will be transmitted to the main board 20 for processing.

Since the three-stack antenna is electrically connected to the main board 20 of the electronic device in a surface-adhesive manner, manpower for assembly can be greatly reduced, and efficiency and ease of use can be improved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the scope of patent protection of the present utility model. Therefore, all equivalent changes made by using the description or drawings of the utility model are all included in this utility model in the same way. Within the scope of protection of utility model rights, it is agreed to Chen Ming.

Claims (10)

1. the three of a kind of surface adhesive type stack antenna, which is characterized in that including：

There is in the first antenna one first antenna one first matrix, the surface of first matrix to have one first radiation metal Layer, the bottom surface of first matrix have a ground metal layer, and in tool in the first antenna, there are two pass through the of first matrix One feed-in component, this two the first feed-in components pass through first matrix to be electrically connected with the first radiation metal layer, this two First feed-in component passes through the bottom surface of first matrix not to be electrically connected with the ground metal layer；

There is on second antenna one second antenna one second matrix, second matrix to be configured at the first spoke of first matrix It penetrates on the surface of metal layer, in having one second radiation metal layer on second matrix surface, there are two for second antenna tool Two feed-in components, this two the second feed-in components be each passed through second matrix and first matrix and with second radiation metal Layer is electrically connected, this two the second feed-in components are passed through and are not electrically connected with the ground metal layer outside the first matrix bottom surface；

There is on the third antenna one third antenna a third matrix, the third matrix to be configured at the second spoke of second matrix It penetrates on the surface of metal layer, in having a third radiation metal layer on the third matrix surface, the third antenna is with a third Feed-in component is each passed through the third matrix, second base after the third feed-in component is electrically connected with third radiation metal layer Body and first matrix, and the third feed-in component passes through and does not connect electrically with the ground metal layer outside the first matrix bottom surface It connects；

One circuit board, with across the third matrix, second matrix and first matrix the third feed-in component, this two Two feed-in components and this two the first feed-in components are electrically connected.

2. the three of surface adhesive type as described in claim 1 stack antenna, which is characterized in that wherein, opened on first matrix Equipped with a first through hole, one second through-hole, a third through-hole, a fourth hole and a fifth hole, the first through hole, this second Through-hole, the third through-hole, the fourth hole and the fifth hole penetrate through first matrix, the first radiation metal layer and ground connection gold Belong to layer, and be in cross-shaped arrangement, this two the first feed-in components run through first base by the fourth hole and the fifth hole Body.

3. the three of surface adhesive type as claimed in claim 2 stack antenna, which is characterized in that wherein, set on second matrix There are one the 6th through-hole, one the 7th through-hole and one the 8th through-hole through second matrix and the second radiation metal layer, the 6th Through-hole, the 7th through-hole and the 8th through-hole correspond to the first through hole, second through-hole and third of first matrix respectively Through-hole, this two the second feed-in components are each passed through the 7th through-hole and the 8th through-hole and electrical with the second radiation metal layer After connection, this two the second feed-in components are then passed through second through-hole and the third through-hole and extend the first matrix bottom respectively It is not electrically connected with the ground metal layer outside face.

4. the three of surface adhesive type as claimed in claim 3 stack antenna, which is characterized in that wherein, set on the third matrix There are one the 9th through-hole through the third matrix and the third radiation metal layer, the 9th through-hole to correspond to the 6th of second matrix The first through hole of through-hole and first matrix.

5. the three of surface adhesive type as claimed in claim 4 stack antenna, which is characterized in that wherein, the third feed-in component First through hole across the 9th through-hole of the third matrix, the 6th through-hole of second matrix and first matrix is to first base It outside the bottom surface of body, is electrically connected, and is somebody's turn to do with the third radiation metal layer when the third feed-in component passes through nine through-holes Third feed-in component is passed through and is not electrically connected with the ground metal layer outside the first matrix bottom surface.

6. the three of surface adhesive type as described in claim 1 stack antenna, which is characterized in that wherein, the third feed-in component There is a head, the head to extend a body of rod for t shape, the third feed-in component.

7. the three of surface adhesive type as claimed in claim 5 stack antenna, which is characterized in that wherein, which has one Front and a back side, the circuit board also have one first perforation, one second perforation, third perforation, one the 4th perforation and one the Five perforation, this first perforation, this second perforation, the third perforation, the 4th perforation and the 5th perforation correspond to respectively this first Through-hole, second through-hole, the third through-hole, the fourth hole and the fifth hole, first perforation, second perforation, this Three perforation, the 4th perforation and the 5th perforation, which are located on the back side, respectively has an electrical contact, and one end of each electrical contact is prolonged Stretching has an electrical affixed point, this two the first feed-in components and this two the second feed-in components are passed through with the third feed-in component and are somebody's turn to do Outside first matrix bottom surface of first antenna, and sequentially pass through the 4th perforation, the 5th perforation and second perforation, this Three, which perforate, is electrically connected with first perforation with the electrical contact of the back of circuit board.

8. the three of surface adhesive type as described in claim 1 stack antenna, which is characterized in that wherein, the face of second matrix Product makes this less than the area of the first radiation metal layer when second matrix is configured at the surface of the first radiation metal layer First radiation metal layer is exposed.

9. the three of surface adhesive type as described in claim 1 stack antenna, which is characterized in that wherein, the face of the third matrix Product makes this less than the area of the second radiation metal layer when the third matrix is configured at the surface of the second radiation metal layer Second radiation metal layer is exposed.

10. the three of surface adhesive type as described in claim 1 stack antenna, which is characterized in that wherein, which is somebody's turn to do Second matrix and plate body or blocks that the third matrix is flat made of ceramic medium material.