CN107394351A - A kind of full metal jacket mobile intelligent terminal antenna - Google Patents

A kind of full metal jacket mobile intelligent terminal antenna Download PDF

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Publication number
CN107394351A
CN107394351A CN201710545335.5A CN201710545335A CN107394351A CN 107394351 A CN107394351 A CN 107394351A CN 201710545335 A CN201710545335 A CN 201710545335A CN 107394351 A CN107394351 A CN 107394351A
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CN
China
Prior art keywords
antenna
metal
antenna branch
branch
circuit board
Prior art date
Application number
CN201710545335.5A
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Chinese (zh)
Inventor
杨鹏
严魁锡
汪隽潇
杨峰
曾莉尧
曹厚华
丁柏浪
Original Assignee
电子科技大学
电子科技大学广东电子信息工程研究院
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Application filed by 电子科技大学, 电子科技大学广东电子信息工程研究院 filed Critical 电子科技大学
Priority to CN201710545335.5A priority Critical patent/CN107394351A/en
Publication of CN107394351A publication Critical patent/CN107394351A/en

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/44Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect

Abstract

The invention provides a kind of full metal jacket mobile intelligent terminal antenna, belong to antenna technical field.The present invention includes:System circuit board, metal shell, antenna branch and distributing point, in system circuit board front, the back side is provided with empty regions, metal shell includes bonnet and connected the week side of boss metal edge frame, narrow slit is provided with so that metal shell is separated to form two independent parts on the metal short frame of empty regions, empty regions are provided with antenna branch, the one of antenna point is as driver element and coupled antenna branch two, metal shell between narrow slit, the parasitic element that antenna branch three forms loop antenna collectively covers low-frequency range (824MHz~960MHz), high band (1710MHz~2690MHz).Invention increases the covering of the frequency range of antenna, is ensureing all-metal covering that is high performance while having substantially carried out equipment, is improving user to fuselage metal-like and the demand of aesthetic feeling.

Description

A kind of full metal jacket mobile intelligent terminal antenna

Technical field

The invention belongs to antenna technical field, more particularly to a kind of full metal jacket mobile intelligent terminal antenna.

Background technology

As consumer is to terminal device outward appearance and the demand of texture, mobile terminal device is intended to the fuselage that metallizes Design, the mobile terminal device of all-metal fuselage become a kind of fashion.Metal shell can largely strengthen mobile whole The structural strength of end equipment and can meet the needs of consumer is to aesthetic feeling and sense of touch, so, the mobile terminal of all-metal fuselage is set The standby market competitiveness attracts people's attention.However, metal shell has often had a strong impact on the radiance of terminal antenna, and terminal day Why the radiance of line can be disturbed by metal shell, and mainly terminal antenna is enclosed in interior relative termination day by metal shell Line forms the reflection of energy, and then forms the radiation areas of a relative closure, cause antenna in the coupling near field and Can not be to far-field radiation, this is equivalent to antenna system and is provided with larger Q values.And the composition portion that antenna is important as communication system Point, the quality of its performance directly affects the quality of terminal device performance.Some traditional PIFA, Loop, IFA etc. antenna are in metal Shell forms under relative closure environment the requirement for being extremely difficult to communication.And the metal shell for how solving antenna and large area coexists The problem of be all that this area needs the difficult point captured badly all the time.Therefore, how to design to obtain it is a kind of ensure it is high performance same When and can be used for full metal jacket mobile intelligent terminal antenna think technical problems to be solved as those skilled in the art.

The content of the invention

The present invention thinks that technical problems to be solved are so that metal shell coexists with terminal antenna mutual benefit, and for this, the present invention carries For a kind of mobile intelligent terminal antenna of full metal jacket.

To achieve the above object, the present invention provides following technical scheme:

Technical scheme 1:

A kind of mobile intelligent terminal antenna of full metal jacket, including:System circuit board, metal shell, antenna branch and Distributing point, it is characterised in that:Corresponding empty regions and the first metal area are provided with the front and back of system circuit board Domain;Metal shell includes metal edge frame and bonnet, and bonnet is located at immediately below the back side of system circuit board and isolation is set therewith, institute Stating bonnet includes non-metallic regions and the second metallic region, the shape of non-metallic regions, the shape of size and empty regions, size It is close and the two is correspondingly arranged;System circuit board side is provided with metal edge frame intimate contact therewith, metal edge frame and bonnet It is connected;Two narrow slits are provided with the metal short frame close to empty regions to separate metal shell segmentation to be formed independently of each other Two metal shells;First metallic region of bonnet and connected metal edge frame and circuit system back collectively as Systematically;

Antenna branch is provided with the empty regions of circuit system back, antenna branch includes antenna branch one, day Line branch two and antenna branch three;Wherein:Antenna branch one is connected by match circuit with the distributing point in metallic region, Metal shell of the one end of antenna branch two and antenna branch three between two narrow slits is connected to form loop antenna, antenna branch Three other end is with being systematically connected, also, antenna branch two couples with an antenna branch part.

Further, antenna branch one is plane single pole sub antenna in the technical program;Preferably, plane Monopole antenna is designed as L-type microstrip line or T-shaped microstrip line.

Further, in the technical program position of two narrow slits on the metal short frame close to empty regions be can be with Mobile.

Further, the gap width of two narrow slits is not less than 1mm in the technical program;It is preferred that span is 1mm ~3mm.

Further, the coupling distance in the technical program between antenna branch one, antenna branch two can be according to required work Working frequency is adjusted.

Further, the width of the non-metallic regions of bonnet is not less than 6mm in the technical program;It is preferred that span is 6mm~8mm.

Further, the gap of narrow slit or non-metallic regions can use non-conducting material to fill in the technical program.

Preferably, match circuit uses band resistance type match circuit in the technical program.

Technical scheme 2:

A kind of mobile intelligent terminal antenna of full metal jacket, including:System circuit board, metal shell, antenna branch and Distributing point, it is characterised in that:Corresponding first empty regions, the second headroom are provided with the front and back of system circuit board Region and the first metallic region, wherein, the first empty regions and the second empty regions are symmetrical arranged at both ends respectively on one side, and two Region is the first metallic region between empty regions;Metal shell includes metal edge frame and bonnet, and bonnet is located at system circuit board The back side immediately below and therewith isolation set, the bonnet includes the first non-metallic regions, the second non-metallic regions and the second gold medal Belong to region, the first non-metallic regions either the shape of the second non-metallic regions, size respectively with the first empty regions or second The shapes of empty regions, adjoining dimensions and it is correspondingly arranged;System circuit board side is provided with metal edge frame intimate contact therewith, Metal edge frame is connected with bonnet;Metal short frame close to the first empty regions and the metal short side close to the second empty regions Two narrow slits are provided with frame to separate to form three separate metal shells by metal shell segmentation;Bonnet and connect with it The metal edge frame and the first metallic region of circuit system back connect is collectively as systematically;

It is respectively arranged with the first empty regions of circuit system back and the second empty regions on system circuit board Centrosymmetric antenna branch, each antenna branch antenna branch one, antenna branch two and antenna including identical setting point Branch three;Wherein:Antenna branch one is connected by match circuit with the distributing point in metallic region, antenna branch two and antenna Metal shell of the one end of branch three between two narrow slits is connected to form loop antenna, the other end and system of antenna branch three Ground is connected, also, antenna branch two couples with an antenna branch part.

Further, antenna branch one is plane single pole sub antenna in the technical program;Preferably, plane Monopole antenna is designed as L-type microstrip line or T-shaped microstrip line.

Further, in the technical program position of two narrow slits on the metal short frame close to empty regions be can be with Mobile.

Further, the gap width of two narrow slits is not less than 1mm in the technical program;It is preferred that span is 1mm ~3mm.

Further, the coupling distance in the technical program between antenna branch one, antenna branch two can be according to required work Working frequency is adjusted.

Further, the width of the non-metallic regions of bonnet is not less than 6mm in the technical program;It is preferred that span is 6mm~8mm.

Further, the gap of narrow slit or non-metallic regions can use non-conducting material to fill in the technical program.

Preferably, match circuit uses band resistance type match circuit in the technical program.

The technical program is to set the opposite end of antenna area to be formed again using same technological means in technical scheme 1 One setting antenna area, two Antenna Designs set in antenna area are also identical, and one is as primary antenna, Ling Yizuo For slave antenna, so as to reach the purpose for improving antenna efficiency, the ineffective deficiency of single antenna is overcome.

The principle of the present invention is described below:

The present invention is used as driver element using antenna branch one, and radiofrequency signal is divided from the matched circuit feed antenna of distributing point Zhi Yi, antenna branch two carry out energy coupling, antenna branch two, antenna branch three and two with the one of antenna point by its gap Metal shell between narrow slit is collectively as parasitic element, and parasitic element forms loop antenna and the covering of match circuit collective effect is low Frequent section (824MHz~960MHz), antenna branch one be plane single pole sub antenna encourage the mode of resonance of high-frequency band with it is whole The same-action of parasitic element one cover whole high-frequency band (1710MHz~2690MHz).

The beneficial effects of the invention are as follows:

Terminal antenna of the present invention applies to mobile intelligent terminal equipment, enables to mobile intelligent terminal equipment to remove rear cover portion Remaining outer region of two narrow slits of subregion and metal edge frame (i.e. mobile intelligent terminal device display screen underlying surfaces, side with And back side major part region) metal is covered, realize the all-metal of mobile intelligent terminal equipment;The present invention by bonnet and and its The metal edge frame of connection is connected with the metallic region of circuit system back, using the metal edge frame between two narrow slits as antenna spoke A part for unit is penetrated, effectively reduces influence of the metal shell to antenna radiation performance, finally realizes that multiband bandwidth covers, 7 frequency ranges are covered, its low-frequency band is wide to cover 824MHz~960MHz, and high frequency bandwidth can cover 1710MHz~2690MHz; Further, terminal antenna of the present invention can also be used to the design of major-minor antenna, reaches the purpose for improving antenna efficiency, overcomes The ineffective deficiency of single antenna;In addition, narrow slit of the present invention opens up position in metal short frame, user can be reduced and held To the influence of antenna performance during equipment.

Brief description of the drawings

Fig. 1 be a kind of full metal jacket mobile intelligent terminal antenna provided by the invention schematic perspective view,;

Fig. 2 is a kind of schematic side view of full metal jacket mobile intelligent terminal antenna provided by the invention;

Fig. 3 is a kind of structural representation of full metal jacket mobile intelligent terminal antenna metal shell provided by the invention, Wherein, scheme to show bonnet in (a), metal framework is shown in figure (b), the first metal shell and second are shown in figure (c) Metal shell;

Fig. 4 is system circuit board and antenna thereon in a kind of full metal jacket mobile intelligent terminal antenna provided by the invention The schematic top plan view of structure;

Fig. 5 is a kind of specific embodiment party of the match circuit of full metal jacket mobile intelligent terminal antenna provided by the invention Formula figure;

Fig. 6 is a kind of return loss plot of full metal jacket mobile intelligent terminal antenna provided by the invention;

Fig. 7 is the efficiency and gain curve of a kind of full metal jacket mobile intelligent terminal antenna provided by the invention;

Fig. 8 is a kind of structural representation of full metal jacket mobile intelligent terminal major-minor antenna provided by the invention;

Fig. 9 is a kind of schematic side view of full metal jacket mobile intelligent terminal major-minor antenna provided by the invention;

Figure 10 is a kind of structure of the metal shell of full metal jacket mobile intelligent terminal major-minor antenna provided by the invention Schematic diagram;

Figure 11 is the return loss plot of the mobile intelligent terminal major-minor antenna outside a kind of all-metal provided by the invention;

In figure:1 is system circuit board, and 101 be empty regions, and 101A is that empty regions A, 101B are empty regions B;2 are Metal shell, 201 be the first metal shell, 202 be the second metal shell;3 be antenna branch, and 301 be antenna branch one, 302 It is antenna branch three for antenna branch two, 303,301A is that antenna branch one A, 301B are that antenna branch one B, 302A divide for antenna Branch two A, 302B are the B of antenna branch two, and 303A is that antenna branch three A, 303B are the B of antenna branch three;4 be match circuit, C1For Matching capacitance, L1For the first matching inductance, L2For the second matching inductance;5 be distributing point;6 be metal edge frame, and 601 be first narrow Seam, 602 be the second narrow slit;7 be bonnet, and 701 be non-metallic regions, and 701A is the first non-metallic regions, and 701B is the second non-gold Belong to region, 702 be the second metallic region;8 be earth terminal.

Embodiment

The main thought of the present invention is, sets narrow slit to set the full metal jacket of mobile intelligent terminal in metal short frame Meter turns into two sections or three sections, the full metal jacket formed by this way, the radiance of mobile intelligent terminal will not be produced Raw harmful effect.Further, by using L-type microstrip line as driver element, using two Branching Antennas and narrow slit cutting Obtained metal shell forms loop antenna as parasitic element, and then realizes that multiple frequency bands broadband covers.

In order that the purpose of the present invention, technical scheme and advantage are clearer, hereafter by specific embodiment and combine Figure of description is described in further detail to the principle and characteristic of the present invention.

Embodiment 1:

A kind of full metal jacket mobile intelligent terminal antenna is present embodiments provided, this implementation is shown with reference to Fig. 1 to Fig. 4 The structural representation of the full metal jacket mobile intelligent terminal antenna of example.The mobile intelligent terminal includes but is not limited to:Mobile phone Terminal, intelligent watch, portable computer or similar any suitable terminal device.

Fig. 1 is illustrated that the schematic perspective view of full metal jacket mobile intelligent terminal antenna, and Fig. 2 is illustrated that outside all-metal The side schematic view of shell mobile intelligent terminal antenna, Fig. 3 are illustrated that in full metal jacket mobile intelligent terminal antenna outside metal The structural representation of shell, understand that full metal jacket mobile intelligent terminal antenna includes with reference to Fig. 1 to Fig. 3:System circuit board 1, gold Belong to shell 2, antenna branch 3, and distributing point 5;

It should be noted that:Paper x directions are length in the present embodiment, and y directions are width, and z directions are thickness;This implementation Example uses length as 140mm, width 70mm, and thickness is 0.8mm system circuit board 1, in the front of system circuit board 1 and the back of the body Face is provided with the corresponding metallic region of empty regions 101 and first;Empty regions 101 are long narrow region, headroom in this implementation The size in region 101 is as follows:Length is 6mm, width 70mm;

Metal shell 2 includes for bonnet 7 and is connected with the week side of boss metal edge frame 6 of bonnet, and bonnet 7 is located at system circuit board 1 The back side immediately below and therewith isolation setting, as shown in Fig. 3 (a), the bonnet 7 includes the metal of non-metallic regions 701 and second Region 702, the shape of non-metallic regions 701, the shape of size and empty regions 101, adjoining dimensions and the two be correspondingly arranged, it is non- The span of the length of metallic region 701 and empty regions 101 is 6mm~8mm, and this implementation is preferably 6mm;Such as Fig. 3 (b) Shown, the side of system circuit board 1 is provided with metal edge frame 6 intimate contact therewith, and metal edge frame 6 is connected with bonnet 7;

Close to empty regions 101 metal short frame on be provided with two narrow slits 601,602 by metal shell 2 be segmented every Open form is into separate the first metal shell 201 and the second metal shell 202, as shown in Fig. 3 (c);Further, it is each narrow Seam can be using separating between the first metal shell 201 and the second metal shell 201 by the way of filling non-metallic material Conducting;Metal shell is separated discontinuous region by the narrow slit, and is located at after being separated between two narrow slits 601,602 The connection of second metal shell 202 realizes the effect of antenna as the radiant body of antenna, avoids metal shell to aerial signal Adverse effect, and then improve antenna performance;The size of narrow slit 601,602 can be set as the case may be, not made herein Limitation, the width of preferably two narrow slits 601,602 of this implementation is 1mm;In addition, the length of the second metal shell 202 is (equivalent to two The distance between bar narrow slit) it is 48mm;It can be seen from the general knowledge of this area, the length of the second metal shell 202 is according to work Frequency is adjusted, and can specifically be adjusted according to the actual requirements;

Fig. 4 shows the schematic top plan view of the system circuit board of full metal jacket mobile intelligent terminal antenna, can with reference to Fig. 1 Know, antenna branch 3 is provided with the empty regions 101 at the back side of system circuit board 1, and antenna branch 3 includes antenna branch one 301st, antenna branch 2 302 and antenna branch 3 303;

Wherein:Antenna branch 1 is specifically to use L-type microstrip line as driver element, and by match circuit 4 with setting Connected in the distributing point 5 in metallic region, thus, radiofrequency signal is from the matched circuit feed antenna branch one of distributing point 5, antenna Branch 2 302 carries out energy coupling with L-type microstrip line by its gap, and coupling distance can be carried out according to required working frequency therebetween Regulation;Meanwhile one end of antenna branch 2 302 and antenna branch 3 303 is connected to form loop antenna with the second metal shell 202 As parasitic element;Bonnet 7 and connected metal edge frame 6 and first metallic region at the back side of system circuit board 1 are made jointly For systematically, earth point 8, day are provided with the position of first metallic region close to empty regions at the back side of system circuit board 1 The other end of line branch 3 303 is connected with realizing access system with earth point 8.

Specifically, this gives a kind of structural representation of match circuit 4, as shown in figure 5, match circuit 4 has Body includes the first matching capacitance C1, the first matching inductance L1And the second matching inductance L2, wherein, the first matching capacitance C1With One matching inductance L1Series connection after again with the second matching inductance L2It is in parallel.One end A points of match circuit 4 are connected with distributing point 5.Matching Circuit 4 is used for the impedance matching for adjusting antenna branch, can preferably receive radiofrequency signal, and broadening low-frequency impedance bandwidth, So as to be adjusted to different user frequency range, and then realize the demand of multiband communication;

As shown in fig. 6, this gives the return loss plot of the antenna structure;As shown in fig. 7, the present embodiment is given The efficiency and gain curve of the antenna structure are gone out, as seen from the figure, antenna provided by the invention realizes multifrequency and wideband The advantages of, the frequency range needed for communication can be covered.The mobile intelligent terminal antenna that the present embodiment provides has and can covered The advantage of this 7 frequency ranges of GSM850, GSM900, DCS, PCS, UMTS2100, LTE2300, LTE2500.Specifically, parasitic element Loop antenna and match circuit collective effect covering low frequency band (824MHz~960MHz) are formed, antenna branch one encourages high again and again The same-action of parasitic element one that the mode of resonance of section is whole covers whole high-frequency band (1710MHz~2690MHz).

In this example, in addition to two narrow slits 601,602 in the non-metallic regions 701 of bonnet 7 and metal edge frame 6 Equipment surface, also just say the side, back side major part region and surface of mobile intelligent terminal equipment without display screen in other words Region covers metal, has substantially carried out the all-metal covering of equipment, has improved user to fuselage metal-like and aesthetic feeling Demand;In addition, the invention enables a part of second metal shell 202 as antenna radiation unit, effectively reduce outside metal Influence of the shell to antenna radiation performance, while realize antenna miniaturization.

Embodiment 2:

A kind of full metal jacket mobile intelligent terminal antenna is present embodiments provided, this reality is shown with reference to Fig. 8 to Figure 10 Apply the structural representation of the full metal jacket mobile intelligent terminal antenna of example.The mobile intelligent terminal includes but is not limited to:Hand Machine terminal, intelligent watch, portable computer or similar any suitable terminal device.

A kind of mobile intelligent terminal antenna of full metal jacket, including:System circuit board 1, metal shell 2, antenna branch 3 With distributing point 5, it is characterised in that:The front and back of system circuit board 3 be provided with corresponding first empty regions 101A, Second empty regions 101B and the first metallic region, wherein, the first empty regions 101A and the second empty regions 101B on one side It is symmetrical arranged respectively at both ends, region is the first metallic region between two empty regions 101A, 101B;Metal shell 2 includes gold Belong to frame 6 and bonnet 7, bonnet 7 be located at immediately below the back side of system circuit board 1 and isolation is set therewith, and the bonnet 7 includes the One non-metallic regions 701A, the second non-metallic regions 701B and the second metallic region 702, the first non-metallic regions 701A or Two non-metallic regions 701B shape, size respectively with the first empty regions 101A or the second empty regions 101B shape, Adjoining dimensions and it is correspondingly arranged;The side of system circuit board 1 is provided with metal edge frame 6 intimate contact therewith, and metal edge frame 6 is with after Lid 7 is connected;Metal short frame close to the first empty regions 101A and the metal short frame close to the second empty regions 101B On be provided with two narrow slits by metal shell 2 segmentation separate to form three separate metal shells;Bonnet 7 and connect with it The metal edge frame 6 and first metallic region at the back side of system circuit board 1 connect is collectively as systematically;

The first empty regions 101A and the second empty regions 101B at the back side of system circuit board 1 are respectively arranged with being The system centrosymmetric antenna branch 3 of circuit board 1, each antenna branch 3 include antenna branch 1, the antenna of identical setting Branch 2 302 and antenna branch 3 303;Wherein:Antenna branch 1 is for L-type microstrip line and by match circuit 4 with being located at gold Distributing point 5 in category region connects, and one end of antenna branch 2 302 and antenna branch 3 303 is outside the metal between narrow slit Shell is connected to form loop antenna, and the other end of antenna branch 3 303 is with being systematically connected, also, antenna branch 2 302 and antenna point The coupling of one 301 parts of branch.

Figure 11 provides the return loss plot of major-minor antenna structure under inventive concept, the results showed that, the property of major-minor antenna Also multifrequency and the characteristic of wideband can be met.

Above-mentioned embodiment is only schematical, rather than restricted, although having elaborated that the present invention's is excellent Embodiment is selected, but those skilled in the art once know basic creative concept, you can above-described embodiment is made separately Outer change and modification.Therefore the scope of the claim of the present invention should cover preferred embodiment and fall into the scope of the invention Have altered and change.

Claims (10)

1. a kind of full metal jacket mobile intelligent terminal antenna, including:System circuit board (1), metal shell (2), antenna branch And distributing point (5) (3), it is characterised in that:Corresponding empty regions are provided with the front and back of system circuit board (1) And the first metallic region (101);Metal shell (2) includes metal edge frame (6) and bonnet (7), and bonnet (7) is located at system circuit board (1) isolate immediately below the back side and therewith and set, the bonnet (7) includes non-metallic regions (701) and the second metallic region (702), the shape of non-metallic regions (701), the shape of size and empty regions (101), adjoining dimensions and the two be correspondingly arranged; System circuit board (1) side is provided with metal edge frame intimate contact therewith (6), and metal edge frame (6) is connected with bonnet (7); Two narrow slits (601,602) are provided with the metal short frame of empty regions (101) metal shell (2) segmentation is separated into shape Into two separate metal shells;Bonnet (7) and connected metal edge frame (6) and system circuit board (1) back side First metallic region is collectively as systematically;
Antenna branch (3) is provided with the empty regions (101) at system circuit board (1) back side, antenna branch (3) includes antenna Branch one (301), antenna branch two (302) and antenna branch three (303);Wherein:Antenna branch one (301) passes through match circuit (4) be connected with the distributing point (5) in the metallic region, one end of antenna branch two (302) and antenna branch three (303) with Metal shell between two narrow slits (601,602) is connected to form loop antenna, the other end of antenna branch three (303) with systematically It is connected, also, antenna branch two (302) couples with antenna branch one (301) part.
A kind of 2. full metal jacket mobile intelligent terminal antenna according to claim 1, it is characterised in that the antenna point One (301) of branch are plane single pole sub antenna.
A kind of 3. full metal jacket mobile intelligent terminal antenna according to claim 2, it is characterised in that the plane list Pole sub-antenna is L-type microstrip line or T-shaped microstrip line.
A kind of 4. full metal jacket mobile intelligent terminal antenna according to claim 1, it is characterised in that two narrow slits The gap width of (601,602) is 1mm~3mm.
A kind of 5. full metal jacket mobile intelligent terminal antenna according to claim 1, it is characterised in that the gap of narrow slit Or non-metallic regions (701) fill non-conductive material.
6. a kind of full metal jacket mobile intelligent terminal antenna according to claim 1, it is characterised in that bonnet (7) The width of non-metallic regions (701) is 6mm~8mm.
7. a kind of full metal jacket mobile intelligent terminal antenna, including:System circuit board (1), metal shell (2), antenna branch And distributing point (5) (3), it is characterised in that:Corresponding first clearance zone is provided with the front and back of system circuit board (3) Domain (101A), the second empty regions (101B) and the first metallic region, wherein, the first empty regions (101A) and second on one side Empty regions (101B) are symmetrical arranged at both ends respectively, and region is the first metallic region between two empty regions (101A, 101B); Metal shell (2) includes metal edge frame (6) and bonnet (7), bonnet (7) be located at immediately below the back side of system circuit board (1) and with Isolation set, the bonnet (7) includes the first non-metallic regions (701A), the second non-metallic regions (701B) and the second metal Shape, the size of region (702), the first non-metallic regions (701A) or the second non-metallic regions (701B) are net with first respectively The shape of dummy section (101A) or the second empty regions (101B), adjoining dimensions and it is correspondingly arranged;System circuit board (1) side Metal edge frame intimate contact therewith (6) is provided with, metal edge frame (6) is connected with bonnet (7);Close to the first empty regions Being provided with two narrow slits on the metal short frame of (101A) and the metal short frame of close second empty regions (101B) will Metal shell (2) segmentation separates to form three separate metal shells;Bonnet (7) and connected metal edge frame (6) The first metallic region with system circuit board (1) back side is collectively as systematically;
The first empty regions (101A) and the second empty regions (101B) at system circuit board (1) back side be respectively arranged with System circuit board (1) centrosymmetric antenna branch (3), each antenna branch (3) include the antenna branch one of identical setting (301), antenna branch two (302) and antenna branch three (303);Wherein:Antenna branch one (301) is L-type microstrip line and passed through Match circuit (4) is connected with the distributing point (5) in the metallic region, antenna branch two (302) and antenna branch three (303) Metal shell of the one end between two narrow slits (601,602) is connected to form loop antenna, the other end of antenna branch three (303) With being systematically connected, also, antenna branch two (302) couples with antenna branch one (301) part.
A kind of 8. full metal jacket mobile intelligent terminal antenna according to claim 1, it is characterised in that the antenna point One (301) of branch are plane single pole sub antenna.
A kind of 9. full metal jacket mobile intelligent terminal antenna according to claim 2, it is characterised in that the plane list Pole sub-antenna is L-type microstrip line or T-shaped microstrip line.
A kind of 10. full metal jacket mobile intelligent terminal antenna according to claim 1, it is characterised in that two narrow slits The gap width of (601,602) is 1mm~3mm.
CN201710545335.5A 2017-07-06 2017-07-06 A kind of full metal jacket mobile intelligent terminal antenna CN107394351A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108417966A (en) * 2018-01-25 2018-08-17 瑞声科技(新加坡)有限公司 A kind of antenna system and mobile terminal
WO2019233401A1 (en) * 2018-06-08 2019-12-12 中兴通讯股份有限公司 Antenna and electronic apparatus

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CN204271242U (en) * 2014-12-29 2015-04-15 上海安费诺永亿通讯电子有限公司 A kind of adjustable antenna for all-metal construction communication terminal device
CN105006647A (en) * 2015-08-04 2015-10-28 常熟泓淋电子有限公司 Composite 4G metal ring antenna

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CN103606736A (en) * 2013-09-18 2014-02-26 上海安费诺永亿通讯电子有限公司 Novel LTE antenna with all-metal frame
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CN104064866A (en) * 2014-05-26 2014-09-24 普尔思(苏州)无线通讯产品有限公司 Antenna structure applied to mobile phone with metal rings and all-metal rear housing
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