CN207800901U

CN207800901U - A kind of all-metal tablet integrated antennas

Info

Publication number: CN207800901U
Application number: CN201820279846.7U
Authority: CN
Inventors: 胡方奔; 朱志国
Original assignee: Sheng Banger Science And Technology Ltd Of Shenzhen
Current assignee: Sheng Banger Science And Technology Ltd Of Shenzhen
Priority date: 2018-02-28
Filing date: 2018-02-28
Publication date: 2018-08-31
Anticipated expiration: 2028-02-28

Abstract

The utility model provides a kind of all-metal tablet integrated antennas, and the antenna is mounted in all-metal rear shell, and the antenna includes coupling blade unit and ground unit；The coupling blade unit includes the first coupling piece circuit and the second coupling piece circuit, and the first coupling piece circuit and the second coupling piece circuit are in the opposite end for coupling blade unit；The ground unit includes the areas ground connection Lu Tong, and the areas ground connection Lu Tong are connect with all-metal rear shell by conducting foam；The coupling blade unit and the ground unit are located at two opposite sides of antenna, the covering of multiple frequency ranges can be achieved, enhance aerial radiation bandwidth, effectively solve the problems, such as that the beamwidth of antenna is limited, meet Antenna Design requirement under complex environment, a kind of new Antenna Design thinking is provided, can be widely applied in more similar products.

Description

A kind of all-metal tablet integrated antennas

Technical field

The utility model is related to antenna technical field more particularly to a kind of all-metal tablet integrated antennas.

Background technology

It is metal material that all-metal coupled antenna, which refers to electronic product casing, antenna implementation be by with metal back cover The antenna of coupled mode is added in the resonant frequency of coupling and generation, i.e. routine PIFA.

Miniaturized multiband built-in aerial is always the developing direction of Mobile phone communication terminal antenna.In order to adapt to market product Demand and attract consumer eyeball, the wireless terminals such as many tablet computers, smart mobile phone, computer all-in-one machine manufacturer Fall over each other to release appearance to be all-metal rear shell, its competitiveness of product in market can be improved in this way.

With the continuous development of LTE technologies, 3.5GHz, 4.0GHz are concerned.More and more wireless terminals need day Line meets 2G networks frequency range and LTE frequency ranges simultaneously, and therefore, antenna needs while covering multiple frequency ranges, in this way to the design of antenna Bring the challenge of bigger；Since the rear shell of wireless terminal product is all-metal, and the thickness of product entirety will not be too thick, leads to day The height of line is compressed by, and so, if antenna does Monopole forms, lower section does not have headroom, antenna performance can be very poor, If using conventional PIFA forms, effect is also bad.

Application publication number is that the Chinese invention patent of CN106099332A discloses a kind of utilization coupled metal lines section improvement The antenna of efficiency, including major radiator and coupling radiator, the major radiator are equipped with described couple between radiator Coupling gap, the major radiator include the first metal wire sections, the second metal wire sections and third metal wire sections, second gold medal The one end for belonging to line segment is connect with one end of first metal wire sections, the other end and the third gold of second metal wire sections Belong to one end connection of line segment, the other end of first metal wire sections is equipped with short dot, the other end of the third metal wire sections Equipped with distributing point, the coupling radiator is coupled metal lines section.The beneficial effects of the invention are as follows：Pass through major radiator and coupling It closes radiator and forms coupling so that the energy on major radiator can be radiate by coupling radiator, to reduce The energy loss of antenna improves the radiation efficiency of antenna, improves efficiency.

But in existing design, reserved to antenna according to all-metal coupled mode antenna since product thickness is limited Height is also with regard to 5mm or so, and antenna is fixed using holder assembly, using all-metal rear shell as the reference ground of antenna, on holder Conventional PIFA antennas is debugged, but fixed in the height of antenna and surrounding enviroment, there are still radiances, and poor, environment is fitted The problem that answering property is weak, impedance match is poor, such antenna cannot be satisfied the demand in market.

Invention content

In order to solve the above-mentioned technical problem, the utility model provides a kind of radiativity under the premise of meeting all-metal appearance The antenna form that energy is good, environmental suitability is strong, impedance match is good.

Technical solution used by the utility model is：

A kind of all-metal tablet integrated antennas, the antenna are mounted in all-metal rear shell, and the antenna includes coupling Blade unit and ground unit；The coupling blade unit includes the first coupling piece circuit and the second coupling piece circuit, first coupling Piece circuit and the second coupling piece circuit are closed in the opposite end for coupling blade unit；The ground unit includes the areas ground connection Lu Tong, institute The ground connection areas Lu Tong are stated to connect by conducting foam with all-metal rear shell；The coupling blade unit and the ground unit are located at Two opposite sides of antenna.

Preferably, the antenna further includes aerial radiation body unit, and the aerial radiation body unit includes antenna spoke Penetrate ontology first line, the second circuit of aerial radiation ontology, aerial radiation ontology tertiary circuit, the 4th line of aerial radiation ontology Road, earth point and distributing point；The aerial radiation ontology tertiary circuit is separately connected aerial radiation ontology first line and antenna Radiate the second circuit of ontology；It is opposite that the 4th circuit of aerial radiation ontology and earth point, distributing point are located at two, antenna Side；

Preferably, the antenna further includes FPC carriers, holder fixed cell and feed cable；The FPC carriers are fixed on On holder fixed cell；The feed cable connection earth point and distributing point.

Preferably, aerial radiation body unit is arranged on FPC carriers.

Preferably, it includes inner core and outer braiding layer that the feed cable, which uses coaxial cable, the coaxial cable, it is described in Core is welded on distributing point, and the outer braiding layer is welded at earth point.

Preferably, the aerial radiation body unit uses FPC materials, and the FPC materials are flexible PCBs The abbreviation of (Flexible Printed Circuit).

Preferably, the holder fixed cell uses heat-resisting material, the aerial radiation body unit to use LDS techniques Direct laser carving is on holder fixed cell.The LDS techniques are laser direct structuring technique (Laser-Direct- Laser throwing is shone mould by abbreviation structuring) using computer according to the movement of the TRAJECTORY CONTROL laser of conductive pattern It moulds on molding three-dimensional plastic device, within several seconds time, activated circuit pattern.

Preferably, the holder fixed cell uses PC/ABS/PPA/LCP series heat-resisting materials.

The size of the holder fixed cell is 40mm*12mm, and there are the gaps 3mm with the side of all-metal rear shell.

The coupling blade unit is independently present on FPC carriers, and close to aerial radiation body unit, couples blade unit It couples to form electric current with aerial radiation body unit.

Preferably, the aerial radiation body unit is that conventional PIFA antennas is realized jointly plus coupling blade unit, PIFA antennas are used as using all-metal rear shell and realize basic frequency range needed for antenna with reference to ground, while removing debugging frequency by coupling blade unit Partially, the parameters such as impedance and bandwidth.

The utility model is using conventional PIFA antennas as basic, then an additional independent coupling blade unit is coupled thereto, The antenna performance for realizing product under all-metal rear shell environment is effectively promoted, and providing a kind of new antenna for antenna designers sets Thinking is counted, having well solved such all-metal product, also synchronization can reach visitor to antenna performance in the case where meeting appearance requirement The problem of family requires.

Description of the drawings

Fig. 1 is aerial radiation body unit structural front view.

Fig. 2 is aerial radiation body unit structural side view.

Fig. 3 is aerial radiation body unit structure rearview.

Fig. 4 is all-metal tablet integrated antennas structural schematic diagram.

Fig. 5 is all-metal tablet integrated antennas structure rearview.

In figure：Aerial radiation body unit 100, coupling blade unit 200, ground unit 300, FPC carriers 400, holder are solid Order member 500, aerial radiation ontology first line 1, the second circuit of aerial radiation ontology 2, aerial radiation ontology tertiary circuit 3, First coupling piece circuit 4, the second coupling piece circuit 5, the 4th circuit 7 of aerial radiation ontology, the areas ground connection Lu Tong 8, earth point 9, feedback Electricity point 10

Specific implementation mode

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below Example is only used for clearly illustrating the technical solution of the utility model, and the protection model of the utility model cannot be limited with this It encloses.

As shown in Fig. 1, a kind of all-metal tablet integrated antennas, including aerial radiation body unit 100, coupling piece list Member 200, ground unit 300, FPC carriers 400, holder fixed cell 500 and feed cable, the aerial radiation body unit 100 include aerial radiation ontology first line 1, the second circuit of aerial radiation ontology 2, aerial radiation ontology tertiary circuit 3, antenna Radiate the 4th circuit 7 of ontology, earth point 9 and distributing point 10；The coupling blade unit 200 includes the first coupling piece circuit 4 and the Two coupling piece circuits 5；The ground unit 300 includes the areas ground connection Lu Tong 8, and the areas ground connection Lu Tong 8 pass through with all-metal rear shell Conducting foam connects；The FPC carriers 400 are fixed on holder fixed cell 500；The feed cable connects 9 He of earth point Distributing point 10.

Aerial radiation body unit 100 is according to conventional PIFA form designs, the aerial radiation ontology first line 1 It is control 2.4G main resonatnt frequencies, the second circuit of aerial radiation ontology 2 is the part radiation ground of antenna, and size is also The impedance of antenna is controlled, aerial radiation ontology tertiary circuit 3 is the bandwidth for controlling main resonatnt frequency；It couples on blade unit 200 Second coupling piece circuit 5 can control the bandwidth of main resonance at a distance from aerial radiation body unit 100, couple on blade unit 200 The first coupling piece circuit 4 can control length and the impedance of 2.4G main resonances.

Based on conventional PIFA antennas, increase independent coupling blade unit 200, by changing antenna body radiation Electric current between road and coupling piece reaches the impedance of adjustment antenna and increases bandwidth, and the day under all-metal rear shell environment may be implemented Line volume is small, space is saved, the effect that signal is strong, performance is good.

If attached drawing 2 shows, the 4th circuit 7 of aerial radiation ontology is one of radiation ground in aerial radiation body unit 100 Part.

If attached drawing 3 shows, the areas ground connection Lu Tong 8 of the ground unit 300 are connect by conducting foam with all-metal rear shell, institute The earth point that earth point 9 is aerial radiation body unit 100 is stated, distributing point 10 is the distributing point of aerial radiation body unit 100, Earth point 9 is connected with distributing point 10 by coaxial cable.

Aerial radiation body unit 100, coupling blade unit 200, ground unit 300 and coaxial cable are all to be assemblied in holder On fixed cell 500.

If attached drawing 4 shows, the size of the holder fixed cell 500 is 40mm*12mm, with the side of all-metal rear shell and Respectively there is the gaps 3mm in the edge of LCD.The aerial radiation body unit 100 is humorous by one master of coaxial cable FD feed generation Vibration frequency.The coupling blade unit 200 is independently present on FPC carriers 400, and close to aerial radiation body unit 100, coupling It closes blade unit 200 and the coupling of aerial radiation body unit 100 forms electric current.

The utility model reaches adjustment day using the electric current generated between antenna body radial line and coupling piece is changed The impedance of line and increase bandwidth, realize and meet Antenna Design requirement under all-metal rear shell environment, this is provided for designer A kind of new Antenna Design thinking of class product, has well solved wireless communication terminal product and has not only met appearance requirement, but also Performance requirement is reached.

Need explanation in the absence of conflict, the features in the embodiments and the embodiments of the present application can be mutual group It closes.

It is to be illustrated to the preferable implementation of the utility model, but the utility model creation is not limited to institute above Embodiment is stated, those skilled in the art can also make various equivalent changes under the premise of without prejudice to spirit of that invention Shape or replacement, these equivalent deformations or replacement are all contained in the application claim limited range.

Claims

1. a kind of all-metal tablet integrated antennas, the antenna is mounted in all-metal rear shell, it is characterised in that：The antenna Including coupling blade unit (200) and ground unit (300)；The coupling blade unit (200) include the first coupling piece circuit (4) and Second coupling piece circuit (5), the first coupling piece circuit (4) and the second coupling piece circuit (5) are in coupling blade unit (200) Opposite end；The ground unit (300) includes the ground connection areas Lu Tong (8), and the areas ground connection Lu Tong (8) pass through with all-metal rear shell Conducting foam connects；The coupling blade unit (200) and the ground unit (300) are located at two opposite sides of antenna Face.

2. all-metal tablet integrated antennas according to claim 1, it is characterised in that：The antenna further includes antenna spoke Body unit (100) is penetrated, the aerial radiation body unit (100) includes aerial radiation ontology first line (1), aerial radiation The second circuit of ontology (2), aerial radiation ontology tertiary circuit (3), the 4th circuit (7) of aerial radiation ontology, earth point (9) and feedback Electric point (10)；The aerial radiation ontology tertiary circuit (3) is separately connected aerial radiation ontology first line (1) and aerial radiation The second circuit of ontology (2)；The 4th circuit (7) of the aerial radiation ontology and earth point (9), distributing point (10) are located at antenna Two opposite sides.

3. all-metal tablet integrated antennas according to claim 2, it is characterised in that：The antenna further includes that FPC is carried Body (400), holder fixed cell (500) and feed cable；The FPC carriers (400) are fixed on holder fixed cell (500) On；The feed cable connection earth point (9) and distributing point (10).

4. all-metal tablet integrated antennas according to claim 3, it is characterised in that：Aerial radiation body unit (100) it is arranged on FPC carriers (400).

5. all-metal tablet integrated antennas according to claim 3, it is characterised in that：The feed cable is using coaxial Cable, the coaxial cable include inner core and outer braiding layer, and the inner core is welded on distributing point (10), the outer braiding layer weldering It is connected at earth point (9).

6. all-metal tablet integrated antennas according to claim 2, it is characterised in that：The aerial radiation body unit (100) FPC materials are used.

7. all-metal tablet integrated antennas according to claim 3, it is characterised in that：The holder fixed cell (500) heat-resisting material, the aerial radiation body unit (100) is used to be fixed in holder using the direct laser carving of LDS techniques single On first (500).

8. all-metal tablet integrated antennas according to claim 7, it is characterised in that：The holder fixed cell (500) PC/ABS/PPA/LCP series heat-resisting materials are used.

9. all-metal tablet integrated antennas according to claim 3, it is characterised in that：The holder fixed cell (500) size is 40mm*12mm, and there are the gaps 3mm with the side of all-metal rear shell.

10. all-metal tablet integrated antennas according to claim 3, it is characterised in that：The coupling blade unit (200) It is independently present on FPC carriers (400), and close to aerial radiation body unit (100), coupling blade unit (200) and antenna Radiation body unit (100) couples and forms electric current.