CN202094303U - Mobile terminal antenna and mobile terminal - Google Patents
Mobile terminal antenna and mobile terminal Download PDFInfo
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- CN202094303U CN202094303U CN2011201137963U CN201120113796U CN202094303U CN 202094303 U CN202094303 U CN 202094303U CN 2011201137963 U CN2011201137963 U CN 2011201137963U CN 201120113796 U CN201120113796 U CN 201120113796U CN 202094303 U CN202094303 U CN 202094303U
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Abstract
The utility model discloses a mobile terminal antenna and a mobile terminal. The mobile terminal antenna comprises a first grounding conductor (3), a second grounding conductor (5) and a feed conductor (4), the first grounding conductor (3) and the second grounding conductor (5) are arranged oppositely and coupled with each other to form main resonance of the mobile terminal antenna, and the feed conductor (4) is coupled with the first grounding conductor (3) and the second grounding conductor (5) to realize feed to the mobile terminal antenna. After being applied, the mobile terminal antenna can save cost, has the advantages of small size and high robustness and isolation, and guarantees performances of a plurality of antennas in the mobile terminal with limited volume.
Description
Technical field
The utility model relates to the mobile communication technology field, more specifically, relates to a kind of mobile terminal antenna and portable terminal.
Background technology
Along with the fast development of mobile communication technology, increasing function is integrated in same portable terminal the inside, and this has brought very big difficulty for the design of portable terminal.With regard to its Antenna Design, more function means that wideer frequency band needs to cover, this in the portable terminal, the design of the miniature antenna of narrow-band characteristic brought very big challenge.
Common way is design Broadband Matching or many antenna operations.Broadband Matching has very big limitation, at first is that the bandwidth that coupling can reach has its limitation, can not widen the frequency band of any needs; Next is that the loss of mating is most important to the influence of own radiation miniature antenna limited in one's ability.Therefore, many antenna operations still inevitably in the time of most of.
Yet many antennas also have its outstanding difficult design.At first, need be on the portable terminal of limited size integrated abundant antenna, and guarantee that simultaneously the radiance of each antenna reaches requirement, so the volume of individual antenna must be enough greatly, this volume to portable terminal has strict demand.More and more be tending towards today portable, that outward appearance is more and more important at portable terminal, many times we have to trade off between antenna performance and equipment volume; Secondly, many antenna operations unavoidably bring the problem of phase mutual interference, be the interference between the different antennae on the one hand, next is the interference of antenna to other circuit function in the portable terminal, this is especially serious in today that portable terminal is tending towards miniaturization, thus the antenna worker have to spend a large amount of time, in limited space, carefully adjust, optimize antenna design and and aerial position, this has influenced project process on the one hand, has brought the raising of time, cost on the other hand.
The utility model content
In view of this, the utility model execution mode proposes a kind of mobile terminal antenna, to save cost.
The utility model execution mode also proposes a kind of portable terminal, to save cost.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of mobile terminal antenna comprises first earthing conductor (3), second earthing conductor (5) and feed-through (4), the relative arrangement of first earthing conductor (3) with second earthing conductor (5), wherein:
First earthing conductor (3) and second earthing conductor (5) coupling form described mobile terminal antenna main resonance;
Feed-through (4) and first earthing conductor (3), second earthing conductor (5) coupling realize the feed to described mobile terminal antenna.
Further comprise the substrate (9) that is used to support described mobile terminal antenna.
Described substrate (9) is made of FR-4.
Described first earthing conductor (3), second earthing conductor (5) and feed-through (4) are formed by copper, aluminium, iron or graphite.
Described first earthing conductor (3) is connected with conductor (6) as pad; Described second earthing conductor (5) is connected with conductor (8) as pad, and described feed-through (4) is connected with conductor (7) as pad;
Wherein: conductor (6) is connected with portable terminal mainly, and conductor (8) is connected with portable terminal mainly, and conductor (7) is connected with the feed circuit of portable terminal.
Described portable terminal be the printed circuit board (PCB) (PCB) of portable terminal mainly.
Gap between first earthing conductor (3) and second earthing conductor (5) is adjustable.
A kind of portable terminal, this portable terminal comprises aforesaid mobile terminal antenna.
Described mobile terminal antenna is placed along described printed circuit board (PCB) along portable terminal (PCB) edge.
Described portable terminal is mobile phone, notebook computer, point-of-sale terminal (POS) machine, MP3 player, MP4 player or vehicle-mounted computer.
From technique scheme as can be seen, in the technical solution of the utility model, mobile terminal antenna, comprise first earthing conductor (3), second earthing conductor (5) and feed-through (4), wherein: first earthing conductor (3) and second earthing conductor (5) coupling form described mobile terminal antenna main resonance; Feed-through (4) and first earthing conductor (3), second earthing conductor (5) coupling realize the feed to described mobile terminal antenna.This shows, use after the utility model, by the coupling between first earthing conductor (3), feed-through (4) and second earthing conductor (5), the resonance frequency of antenna can be adjusted setting, even antenna can show " left hand " characteristic that differs from common transmission line characteristics, and then can dwindle antenna volume, thereby guaranteed the performance of a plurality of antennas in the wireless device of limited bulk.And can antenna be placed on the position that needs in the circuit as the design general circuit, and need not need as the antenna in the traditional mobile terminal equipment to customize according to device structure and the different of arrangement of elements, the time and the cost of research and development therefore saved.
And antenna of the present utility model can be the universal design of elementization, can be used for distinct device by this antenna of large batch of production, thereby save production cost.
Description of drawings
Fig. 1 is the structural representation according to mobile terminal antenna conductor of the present utility model.
Fig. 2 is the structural representation according to mobile terminal antenna of the present utility model.
Fig. 3 is the position view of mobile terminal antenna in portable terminal according to the utility model execution mode.
Fig. 4 is the connection diagram according to the mobile terminal antenna and the treatment circuit of the utility model execution mode.
Embodiment
Express clearlyer for the purpose, technical scheme and the advantage that make the utility model execution mode, the utility model execution mode is further described in more detail below in conjunction with drawings and the specific embodiments.
In execution mode of the present utility model, provide a kind of can standardization, the portable terminal miniature antenna design of small size, elementization, the main feature of this antenna is that volume is less than traditional antenna, and antenna has good antijamming capability to the element that closes on, and has good robustness in other words.
In execution mode of the present utility model, antenna can be designed to standardized components and parts, the antenna works teacher can be as the common circuit of design, these components and parts as antenna are placed on the position that needs on the circuit, and need not be according to the different antenna of on-the-spot different customizations, this has reduced the time and the cost of exploitation greatly.On the other hand, because the antenna of the utility model execution mode can be used as a general components and parts design, therefore can large batch ofly produce, thereby reduce production costs.
In addition,, can be made in the antenna of the utility model execution mode on any cheap substrate, on FR-4, thereby further reduce device cost based on the robustness of this design.It will be appreciated by those of skill in the art that backing material can but be not limited to FR-4.
Fig. 1 is the structural representation according to mobile terminal antenna conductor of the present utility model.In Fig. 1, the conductor as antenna structure is only described out, with the design of clearer description antenna itself.Antenna body mainly contains three blocks of metals (i.e. first earthing conductor (3), second earthing conductor (5) and feed-through (4)) to be formed, and these three blocks of metals both can use copper, also can use other any conductors such as aluminium, iron or graphite.
As shown in Figure 1, this mobile terminal antenna conductor comprises first earthing conductor (3), second earthing conductor (5) and feed-through (4), the relative arrangement with second earthing conductor (5) of first earthing conductor (3).First earthing conductor (3) is connected with grounding leg (6), second earthing conductor (5) is connected with grounding leg (8), grounding leg (6) and grounding leg (8) respectively with the main ground of mobile terminal device (such as, printed circuit board (PCB) (PCB) just can be considered as main ground) directly continuous.
First earthing conductor (3) and second earthing conductor (5) are one of main composition parts of antenna conductor.Coupling forms described mobile terminal antenna main resonance between first earthing conductor (3) and second earthing conductor (5).Coupling between first earthing conductor (3) and second earthing conductor (5) has difference according to the operating frequency difference.Normally, can adjust the resonance frequency of antenna by adjusting coupling between first earthing conductor (3) and second earthing conductor (5).Specifically, the coupling capacitance strong more, that form between the two in other words that is coupled is big more, and the resonance frequency of antenna is low more, by reducing the resonance frequency that gap between first earthing conductor (3) and second earthing conductor (5) can reduce antenna.Otherwise,, can increase the resonance frequency of antenna by increasing the gap between first earthing conductor (3) and second earthing conductor (5).
In the utility model execution mode, the physical length of first earthing conductor (3) and second earthing conductor (5) be designed to be shorter than can resonance in working frequency points length, they externally are shown as capacitive; Their end can be assembled instantaneous electric charge formation electric field focus when work like this.Utilize the coupling between the terminal electric field of first earthing conductor (3) and second earthing conductor (5) just, allow electric current go up vibration and radiation at first earthing conductor (3) and second earthing conductor (5).
In execution mode of the present utility model, the relative arrangement of first earthing conductor (3) with second earthing conductor (5).Overlapping degree (degree of coupling) the antenna feed impedance adjustment as required of feed-through (4) and two earthing conductors (i.e. first earthing conductor (3) and second earthing conductor (5)).The overlapping of feed-through (4) and two earthing conductors (i.e. first earthing conductor (3) and second earthing conductor (5)) can be overlapping up and down, also can be that the left and right sides is overlapping on the plane.
As shown in Figure 1, first earthing conductor (3) and feed-through (4) are overlapping up and down, are in order to realize bigger coupling between these two conductors.As shown in Figure 1, second earthing conductor (5) and feed-through (4) are that in one plane the left and right sides is overlapping.Yet in other execution mode, feed-through (4) can in one plane the left and right sides be overlapping with second earthing conductor (5), and while feed-through (4) and first earthing conductor (3) are overlapping up and down.
Simultaneously, feed-through (4) by same coupling signal feed-in first earthing conductor (3) and second earthing conductor (5).Can allow the input impedance and the feed circuit matched well of antenna by the coupling of adjusting feed-through (4) and first earthing conductor (3), second earthing conductor (5), thereby the energy of assurance circuit can effectively be transferred to antenna.
Pad (7) is connected with feed-through (4) at the portable antenna end.Pad (7) further is connected with the circuit input/output terminal (not illustrating among Fig. 1) of portable terminal, thereby realizes the transmission of energy between circuit and the antenna.Feed-through (4) and first earthing conductor (3), second earthing conductor (5) coupling are by the feed of feed-through (4) realization to described mobile terminal antenna.Wherein, the stiffness of coupling of coupling between feed-through (4) and first earthing conductor (3), second earthing conductor (5) can be adjusted to some extent according to antenna impedance is different.By adjusting the stiffness of coupling of coupling between feed-through (4) and first earthing conductor (3), second earthing conductor (5), can adjust the impedance of antenna, thereby realize and the feed circuit matched well.Specifically, increase the coupling between feed-through (4) and first earthing conductor (3), can reduce the input impedance of antenna, this point can realize by the area of adjusting lap between feed-through (4) and first earthing conductor (3).Increase the coupling between feed-through (4) and second earthing conductor (5), the input impedance that can improve antenna, this point can realize by the distance that reduces between feed-through (4) and second earthing conductor (5).
Conductor (7) is connected with feed circuit as the pad of feed-through (4), thereby realizes being electrically connected of feed circuit and feed-through (4), and signal is passed to antenna by feed-through (4).With regard to the components and parts itself as antenna, conductor wherein (7), conductor (4) are the feed parts; From circuit, all conductors and the substrate that constitute antenna are components and parts together, and feed circuit is the components and parts feed of antenna to this.
In Fig. 1, grounding leg (6) and grounding leg (8) all are conductors, and all simultaneously as pad, the PCB with the main ground of conduct links to each other respectively.
In the Antenna Design in the utility model execution mode, coupled relation by two earthing conductors (first earthing conductor (3), second earthing conductor (5)) and a feed-through (feed-through (4)), can be negative value so that show the magnetic permeability and the dielectric constant of equivalence between the three, it is exactly the artificial super material behavior of saying usually, and then making antenna volume can be significantly less than traditional antenna, it shows high-performance and and the common performance of high isolation between antenna.
From the Antenna Design scheme of the utility model execution mode also as can be seen, between the conductor (i.e. (feed-through (4))) and antenna conductor of the antenna conductor (promptly between first earthing conductor (3), second earthing conductor (5)) of formation resonance and realization feed, all by field coupled work, this makes most of electric field of antenna all be limited in antenna inside, causes antenna that contiguous components and parts, human body etc. are had good antijamming capability.
Be somebody's turn to do this specific character of design based on the utility model execution mode, we can be designed to general components and parts to mobile terminal antenna and be placed on the position that needs, simultaneously, because be the universal design of standard, so can produce in enormous quantities, thereby save research and development and production cost.
Fig. 2 is the structural representation according to mobile terminal antenna of the present utility model.
Compared to Figure 1, mobile terminal antenna shown in Figure 2 further comprises the substrate 9 that is used for supporting antenna.Substrate 9 is preferably frame structure.Substrate 9 can select comparatively cheap material to make, such as FR-4.
FR-4 is a kind of code name of flame resistant material grade, the meaning of representative is a resin material must can be from a kind of material specification of horizontal blanking through fired state, it is not a kind of title material, but a kind of material rate, therefore at present the used FR-4 grade material of general circuit plate just has very many kinds, adds the composite material that filler (Filler) and glass fibre are made but majority all is a epoxy resin with so-called four functions (Tera-Function).
FR-4 is the substrate that PCB uses, and is a kind of plate.Plate is pressed the reinforcing material difference, mainly is categorized as following four kinds:
1) FR-4: glass cloth substrate;
2) FR-1, FR-2 etc.: paper substrate plate
3) CEM series: composite base plate
4) special material substrate (pottery, Metal Substrate etc.) FR-4 is soaked the plate-like layers stampings that form through HTHP hot pressing with materials such as epoxy phenolicss by special electronic cloth.
Fig. 3 is the position view of mobile terminal antenna in portable terminal according to the utility model execution mode.
According to shown in Figure 3, antenna of the present utility model (2) is to be placed directly in above the PCB (1) of portable terminal as components and parts.PCB treats as ground.Because antenna structure, the antenna of the utility model design can reach optimum efficiency along the placement of PCB edge.
Fig. 4 is the connection diagram according to the mobile terminal antenna and the treatment circuit of the utility model execution mode.
As shown in Figure 4, the circuit (10) of antenna (2) and portable terminal is connected by feed structure (11).Circuit (10) can be thought PA for the circuit to antenna feed.Feed structure (11) is printed on pcb board, and feed-through (4) is on antenna, and antenna has three pads (6), (7), (8) as one above the components and parts; Three pads are also arranged on the PCB accordingly; After being welded in components and parts on the plank, the pad of components and parts is connected with the pad of PCB, thereby realizes being electrically connected of antenna and PCB circuit.Can think that feed structure (11) has comprised three pads on the PCB.
In actual conditions, may have certain distance between circuit (10) and the antenna (2), so circuit (10) needs to be connected with antenna (2) by suitable feed structure (11).Based on structure shown in Figure 1, be appreciated that circuit (10) needs to be connected with pad (7) among Fig. 1 by suitable feed structure (11).
Based on above-mentioned detailed description to mobile terminal antenna, the utility model execution mode also discloses a kind of portable terminal that comprises as the mobile terminal antenna of above-mentioned structure.And preferably, in the portable terminal of this structure, mobile terminal antenna is placed with effect preferably along described printed circuit board (PCB) along portable terminal (PCB) edge.
The portable terminal that the utility model is set forth is construed as: in mobile communication equipment, stop from or deliver to the wireless transmission of network, and the ability of terminal equipment is fitted to the part of wireless transmission.Specifically can comprise mobile phone, notebook computer, POS machine, MP3 player, MP4 player even comprise vehicle-mounted computer, etc.
In the utility model, can show " left hand " characteristic that differs from common transmission line characteristics, and then can dwindle antenna volume.In the utility model execution mode, the physical length of first earthing conductor (3) and second earthing conductor (5) be designed to be shorter than can resonance in working frequency points length, they externally are shown as capacitive; Their end can be assembled instantaneous electric charge formation electric field focus when work like this, we utilize the coupling between the terminal electric field of first earthing conductor (3) and second earthing conductor (5) just, electric current can be gone up at first earthing conductor (3) and second earthing conductor (5) vibrate and radiation; Simultaneously, feed-through (4) by same coupling signal feed-in first earthing conductor (3) and second earthing conductor (5); The coupling of adjusting feed-through (4) and first earthing conductor (3), second earthing conductor (5) can allow the input impedance and the feed circuit matched well of antenna, thereby the energy of assurance circuit can effectively be transferred to antenna.
In addition, in design of the present utility model, adjusting all is to realize by the coupling between first earthing conductor (3), feed-through (4) and second earthing conductor (5), makes this adjustment become flexibly and easily like this.
Not only in this, because the utility model is designed the less antenna of volume, thus can be placed directly in the limited mobile phone space, and do not need to revise profile according to different portable terminals, this changes into element is possible.In addition, because general antenna is relatively more responsive to human body or other objects on every side, mainly be since on the antenna electric field focus and object effect on every side cause, in design of the present utility model, most of electric field is limited between the electric capacity of first earthing conductor (3), feed-through (4) and second earthing conductor (5) coupling, the electric field that makes antenna externally show does not have too strong focus, makes that like this robustness of antenna is relatively good, and is insensitive to surrounding environment; It is possible that robustness further makes element change into.
And, because the common antenna of tradition is because relatively more responsive to surrounding environment, and different mobile terminal or different designs, the environment around the antenna is all different, adapts to different environment so must revise antenna; In design of the present utility model, because antenna is relatively good to the robustness of surrounding space, make us all to use same design regardless of which type of environment, make that like this particular design is cured as element becomes possibility.
Though more than specifically enumerate out the example of some portable terminals, it will be appreciated by those of skill in the art that only enumerating herein to be not limited to the scope of application of the utility model execution mode to exemplary.
In sum, in the technical scheme in the utility model, mobile terminal antenna comprises first earthing conductor (3), second earthing conductor (5) and feed-through (4), wherein: first earthing conductor (3) and second earthing conductor (5) coupling form described mobile terminal antenna main resonance; Feed-through (4) and first earthing conductor (3), second earthing conductor (5) coupling realize the feed to described mobile terminal antenna.This shows, use after the utility model, by the coupling between first earthing conductor (3), feed-through (4) and second earthing conductor (5), antenna can show " left hand " characteristic that differs from common transmission line characteristics, and then can dwindle antenna volume, thereby guaranteed the performance of a plurality of antennas in the wireless device of limited bulk.And can antenna be placed on the position that needs in the circuit as the design general circuit, and need not need as the antenna in the traditional mobile terminal equipment to customize according to device structure and the different of arrangement of elements, the time and the cost of research and development therefore saved.
And antenna of the present utility model can be the universal design of elementization, can be used for distinct device by this antenna of large batch of production, thereby save production cost.
The above is the preferred embodiment of the utility model execution mode only, is not the protection range that is used to limit the utility model execution mode.All within the spirit and principle of the utility model execution mode, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model execution mode.
Claims (10)
1. a mobile terminal antenna is characterized in that, comprises first earthing conductor (3), second earthing conductor (5) and feed-through (4), the relative arrangement of first earthing conductor (3) with second earthing conductor (5), wherein:
First earthing conductor (3) and second earthing conductor (5) coupling form described mobile terminal antenna main resonance;
Feed-through (4) and first earthing conductor (3), second earthing conductor (5) coupling realize the feed to described mobile terminal antenna.
2. mobile terminal antenna according to claim 1 is characterized in that, further comprises the substrate (9) that is used to support described mobile terminal antenna.
3. mobile terminal antenna according to claim 1 is characterized in that, described substrate (9) is made of FR-4.
4. mobile terminal antenna according to claim 1 is characterized in that, described first earthing conductor (3), second earthing conductor (5) and feed-through (4) are formed by copper, aluminium, iron or graphite.
5. mobile terminal antenna according to claim 1 is characterized in that, described first earthing conductor (3) is connected with conductor (6) as pad; Described second earthing conductor (5) is connected with conductor (8) as pad, and described feed-through (4) is connected with conductor (7) as pad;
Wherein: conductor (6) is connected with portable terminal mainly, and conductor (8) is connected with portable terminal mainly, and conductor (7) is connected with the feed circuit of portable terminal.
6. mobile terminal antenna according to claim 5 is characterized in that, described portable terminal be the printing board PCB of portable terminal mainly.
7. according to each described mobile terminal antenna among the claim 1-5, it is characterized in that the gap between described first earthing conductor (3) and second earthing conductor (5) is adjustable.
8. a portable terminal is characterized in that, this portable terminal comprises mobile terminal antenna as claimed in claim 1.
9. portable terminal according to claim 8 is characterized in that, described mobile terminal antenna is placed along described printing board PCB edge along portable terminal.
10. according to Claim 8 or 9 described portable terminals, it is characterized in that described portable terminal is mobile phone, notebook computer, point-of-sale terminal POS machine, MP3 player, MP4 player or vehicle-mounted computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201137963U CN202094303U (en) | 2011-04-18 | 2011-04-18 | Mobile terminal antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201137963U CN202094303U (en) | 2011-04-18 | 2011-04-18 | Mobile terminal antenna and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202094303U true CN202094303U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201137963U Expired - Fee Related CN202094303U (en) | 2011-04-18 | 2011-04-18 | Mobile terminal antenna and mobile terminal |
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| Country | Link |
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| CN (1) | CN202094303U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058442A (en) * | 2016-07-06 | 2016-10-26 | 广东通宇通讯股份有限公司 | Antenna |
| CN107634329A (en) * | 2017-09-06 | 2018-01-26 | 嘉兴佳利电子有限公司 | A kind of multi-layer porcelain antenna and corresponding CPW plates and double frequency Loop antennas |
| WO2018171297A1 (en) * | 2017-03-21 | 2018-09-27 | 中兴通讯股份有限公司 | Antenna structure, intelligent terminal device, and method for manufacturing antenna structure |
| CN112909544A (en) * | 2021-02-08 | 2021-06-04 | 歌尔科技有限公司 | Electronic equipment and multi-antenna system thereof |
| CN113826280A (en) * | 2019-05-10 | 2021-12-21 | 微软技术许可有限责任公司 | Variable ground plane tuning compensation |
-
2011
- 2011-04-18 CN CN2011201137963U patent/CN202094303U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058442A (en) * | 2016-07-06 | 2016-10-26 | 广东通宇通讯股份有限公司 | Antenna |
| WO2018171297A1 (en) * | 2017-03-21 | 2018-09-27 | 中兴通讯股份有限公司 | Antenna structure, intelligent terminal device, and method for manufacturing antenna structure |
| CN108631051A (en) * | 2017-03-21 | 2018-10-09 | 中兴通讯股份有限公司 | The production method of antenna structure, intelligent terminal and antenna structure |
| CN107634329A (en) * | 2017-09-06 | 2018-01-26 | 嘉兴佳利电子有限公司 | A kind of multi-layer porcelain antenna and corresponding CPW plates and double frequency Loop antennas |
| CN113826280A (en) * | 2019-05-10 | 2021-12-21 | 微软技术许可有限责任公司 | Variable ground plane tuning compensation |
| CN112909544A (en) * | 2021-02-08 | 2021-06-04 | 歌尔科技有限公司 | Electronic equipment and multi-antenna system thereof |
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