CN103700934B - Antenna structure for metal case terminal and terminal - Google Patents
Antenna structure for metal case terminal and terminal Download PDFInfo
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- CN103700934B CN103700934B CN201310688075.9A CN201310688075A CN103700934B CN 103700934 B CN103700934 B CN 103700934B CN 201310688075 A CN201310688075 A CN 201310688075A CN 103700934 B CN103700934 B CN 103700934B
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Abstract
The invention provides an antenna structure for a metal case terminal. The antenna structure comprises a metal bottom plate assembly and a metal radiation sheet assembly, wherein the metal bottom assembly comprises a part of a metal case of the terminal, in addition, ground and signal ends are arranged on the metal bottom plate assembly, the metal radiation sheet assembly comprises the rest part of the metal case of the terminal, in addition, a slit is formed at a connecting line part of the metal radiation sheet assembly and the metal bottom plate assembly, a grounding point and a feed point are also arranged on the metal radiation sheet assembly, and the grounding point and the feed point are respectively connected with the ground and the signal ends arranged on the metal bottom plate assembly. The invention also provides the terminal. Through the technical scheme, the terminal can realize the full metal structure, and in addition, the radiation effect of an antenna cannot be influenced.
Description
Technical field
The present invention relates to antenna technical field, in particular to a kind of antenna structure for metal case terminal and a kind of terminal.
Background technology
In order to avoid the shielding of the electromagnetic energy to the radiation of terminal internal antenna, terminal enclosure can not use too much metal material.But, because metal material is more attractive in appearance, durable compared to plastics etc., thus there is larger user demand.
In correlation technique, propose as formed slot antenna, to solve the problem of above-mentioned electromagnetic energy conductively-closed at terminal bonnet.But on the one hand, aforesaid way still cannot form the terminal enclosure of all-metal material; On the other hand, when the protecgulum of terminal and the spacing of bonnet larger time, will the effective feed realized between the two be difficult to, the sharply increase of terminal structure complexity and manufacturing cost can be caused.
Therefore, how while avoiding affecting terminal inner aerial radiation signal, make terminal to apply full metal jacket, become technical problem urgently to be resolved hurrily at present.
Summary of the invention
The present invention, just based on the problems referred to above, proposes a kind of new technical scheme, terminal can be made to realize all-metal construction, and can not affect the radiation effect of antenna.
In view of this, the present invention proposes a kind of antenna structure for metal case terminal, comprising: metal base plate assembly, comprise a part for the metal shell of terminal, and described metal base plate assembly is provided with and signal end; Metal radiation chip module, comprise the remainder of the metal shell of terminal, and the intersection place of described metal radiation chip module and described metal base plate assembly forms slit, wherein, described metal radiation chip module is also provided with earth point and distributing point, and described earth point and described distributing point are connected with signal end with the ground on described metal base plate assembly respectively.
In this technical scheme, terminal enclosure is divided on the whole any two parts, then forms slit by the adjacent position (i.e. both intersection place) in these two parts, the signal radiation of this slit realization to terminal inner antenna can be utilized; And owing to all forming slit at all neighboring edges of two metal outer portions, even if make terminal adopt all-metal construction, also still effectively can carry out signal radiation, avoid metal shell to the shielding action of this emittance.
Meanwhile, because terminal adopts bulk metal structure, make directly to adopt this metal shell itself to realize feed, without the need to additional independently feed structure, contribute to simplifying terminal architecture, reducing production cost.
In technique scheme, preferably, described earth point is connected with signal end with the ground on described metal base plate assembly at described slit place respectively with described distributing point.
In this technical scheme, because the spacing at slit place is very little, narrow to micron order, then by carrying out ground connection and feed at slit place, without the need to the syndeton of complexity, effective radiation and feed can be realized, contributing to simplifying terminal structure.
In technique scheme, preferably, the position of described distributing point is connected to described signal end at described slit place adjustable ground.
In this technical scheme, by the position adjustments of distributing point, making it possible to when not changing antenna outward appearance and size (i.e. the size of terminal), the effect of the operating frequency of adjustment antenna flexibly can be reached, make the present invention have good ease for use.
In above-mentioned arbitrary technical scheme, preferably, described metal base plate assembly comprises: the metal bezel of described terminal, a part for metal back cover, for connecting the first metal side plate assembly of a part for described metal bezel and described metal back cover; Described metal radiation chip module comprises: another part of the metal back cover of described terminal, for connecting the second metal side plate assembly of another part of described metal bezel and described metal back cover.
In this technical scheme, as one comparatively preferred embodiment, the metal shell of terminal can be divided into upper and lower two parts haply, and the metal side plate that the slit formed between two parts comprises in metal back cover and between protecgulum and bonnet is first-class, even if thus when the side plate of terminal is made as metal material, the shielding of the antenna energy making paired terminal still effectively can be avoided.Certainly, what those skilled in the art should understand that is, if terminal enclosure to be considered as a closed cuboid, when then this cuboid being divided into two parts by any-mode, the all-metal construction realizing terminal can both be made, and the shielding action to the antenna energy in terminal can be avoided to a certain extent.
Wherein, the metal back cover of terminal is divided into two parts, and corresponds to metal base plate assembly and metal radiation chip module by any-mode.Such as one comparatively preferred embodiment, owing to usually each hardware module and assembly being arranged on the first half in terminal, and the latter half is used for arranging battery, then can make that the first half of metal back cover belongs to metal base plate assembly, the latter half belongs to metal radiation chip module.
In technique scheme, preferably, described metal bezel is provided with and signal end, described second metal side plate assembly is provided with described earth point and described distributing point, and described earth point and described distributing point are connected with signal end with the ground in described metal bezel with the slit place between described metal bezel at described second metal side plate assembly respectively.
In this technical scheme, because the slit between the second metal side plate assembly and metal bezel is very little, can be narrow to micron order, then when this slit place carries out ground connection and feed, do not need to add independently structure in addition, can realize, to the Net long wave radiation of the aerial signal in terminal and the feed to the slot antenna that slit is formed, contributing to simplifying terminal structure, and being easy to realize.
In technique scheme, preferably, described second metal side plate assembly comprises and is positioned at described terminal both sides, the first metal side plate be arranged in parallel and the second metal side plate, and the metal roof/base plate connected with described first metal side plate and described second metal side plate; Wherein, ground in described earth point and described metal bezel forms slit in described metal roof/base plate and described first metal side plate or the adjacent position of described second metal side plate, and the position that the ground in described earth point and described metal bezel connects in this slit is interconnected.
In this technical scheme, when terminal enclosure being considered as a cuboid, as one comparatively preferred embodiment, position earth point being arranged on the summit being the equal of cuboid is specifically proposed, thus arrange simple on the one hand, relatively better radiation effect can be obtained on the other hand.Wherein, for the slit that metal roof/base plate and the first metal side plate or the adjacent position of the second metal side plate are formed, can the narrow micron order cannot differentiated to naked eyes.And the connecting line formed between ground in earth point and metal bezel is positioned at this slit, namely connecting line is not connected with metal roof/base plate, the first metal side plate or the second metal side plate in this slit length, makes to be spaced between the connecting line formed between the ground on earth point and metal bezel and the connected metallic plate of distributing point.
In technique scheme, preferably, the slit place of position between described metal roof/base plate and described metal bezel of described distributing point.
In this technical scheme, according to the dividing mode to metal back cover, the metal back cover part belonging to metal radiation chip module may be positioned at the first half of this metal back cover or Lower Half and to grade other parts.Such as when metal radiation chip module comprises the first half of metal back cover, then the position of distributing point can slit place between the metal top plate of terminal and metal bezel; Or when metal radiation chip module comprises the latter half of metal back cover, then the position of distributing point can slit place between the metal base plate of terminal and metal bezel.
By distributing point being arranged on the slit place of metal top plate or base plate and metal bezel, contribute on the one hand simplifying terminal structure, without the need to use independently parts to realize feeding function; Then can help on the other hand to obtain better excitation and radiation effect.
In above-mentioned arbitrary technical scheme, preferably, described earth point is connected with signal end with the ground in described metal bezel by non-sheet connector respectively with described distributing point.
In technique scheme, preferably, described non-sheet connector comprises coaxial cable or microstrip transmission line.
The invention allows for a kind of terminal, comprise the antenna structure for metal case terminal according to any one of technique scheme.
By above technical scheme, terminal can be made to realize all-metal construction, and the radiation effect of antenna can not be affected.
Accompanying drawing explanation
Fig. 1 shows the solid assembling schematic diagram of antenna structure according to an embodiment of the invention;
Fig. 2 be embodiment illustrated in fig. 1 in each component combination after structural representation;
Front view when Fig. 3 is the left sides from antenna structure embodiment illustrated in fig. 2;
Vertical view when Fig. 4 is the left sides from antenna structure embodiment illustrated in fig. 2;
Left view when Fig. 5 is the left sides from antenna structure embodiment illustrated in fig. 2;
Fig. 6 shows the S11 of antenna structure according to an embodiment of the invention near 2GHz and emulates schematic diagram;
Fig. 7 to Fig. 9 shows the S11 near 2GHz when carrying out position adjustments to the distributing point on antenna structure according to an embodiment of the invention and emulates schematic diagram;
Figure 10 shows the emulation schematic diagram of the Surface current distribution situation of antenna structure according to an embodiment of the invention;
Figure 11 shows the emulation schematic diagram of the radiation direction of antenna structure according to an embodiment of the invention.
Embodiment
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the solid assembling schematic diagram of antenna structure according to an embodiment of the invention.
As shown in Figure 1, antenna structure according to an embodiment of the invention, comprising: metal base plate assembly 1, comprises a part for the metal shell of terminal, and described metal base plate assembly 1 is provided with signal end (not shown); Metal radiation chip module 2, comprise the remainder of the metal shell of terminal, and intersection 3 place of described metal radiation chip module 2 and described metal base plate assembly 1 forms slit, wherein, described metal radiation chip module 2 is also provided with earth point and distributing point (not shown), described earth point and described distributing point are connected with signal end with the ground on described metal base plate assembly 1 respectively.
In this technical scheme, terminal enclosure is divided on the whole any two parts, then forms slit by the adjacent position (i.e. both intersection 3 place) in these two parts, the signal radiation of this slit realization to terminal inner antenna can be utilized; And owing to all forming slit at all neighboring edges of two metal outer portions, even if make terminal adopt all-metal construction, also still effectively can carry out signal radiation, avoid metal shell to the shielding action of this emittance.
Certainly, as one comparatively preferred embodiment, Fig. 1 illustrate only from situation during the dividing in a lateral direction of terminal back cover; And those skilled in the art should understand that: obviously also can divide according to the longitudinal direction of such as terminal back cover or other any directions, if namely terminal enclosure to be considered as a closed cuboid, when then this cuboid being divided into two parts by any-mode, make it possible to terminal enclosure is divided on the whole two parts, and utilize the adjacent slits of two parts (intersection 3 as shown in Figure 1) to realize effective radiation, thus the all-metal construction realizing terminal can both be made.
Meanwhile, even if divide according to the horizontal direction of such as terminal back cover, also still can there is multiple concrete zoned format, then for the preferred embodiment shown in Fig. 1, its concrete structure can adopt:
Metal base plate assembly 1 comprises: the metal bezel 11 of described terminal, a part for metal back cover 12, for connecting the first metal side plate assembly 13 of a part 12 for described metal bezel 11 and described metal back cover; Described metal radiation chip module 2 comprises: another part 21 of the metal back cover of described terminal, for connecting the second metal side plate assembly 22 of another part 21 of described metal bezel 11 and described metal back cover.
Wherein, the metal back cover of terminal is divided into two parts, and corresponds to metal base plate assembly 1 and metal radiation chip module 2 by any-mode.Such as one comparatively preferred embodiment, owing to usually each hardware module and assembly being arranged on the first half in terminal, and the latter half is used for arranging battery, then can make that the first half of metal back cover belongs to metal base plate assembly 1, the latter half belongs to metal radiation chip module 2.
Fig. 2 be embodiment illustrated in fig. 1 in each component combination after structural representation.
As shown in Figure 2, on antenna structure after combining, the position that the earth point particularly illustrating setting on metal radiation chip module 2 is connected with signal end with the ground on described metal base plate assembly 1 respectively with distributing point.
Particularly, described earth point is connected with signal end with the ground on described metal base plate assembly 1 at intersection 3 place respectively with described distributing point, and this execution mode can be applied in the antenna structure shown in Fig. 2, or based in other any antenna structures of the present invention.Because the spacing at intersection 3 place can be very little, the even narrow naked eyes that make to micron order are difficult to identify, then by carrying out ground connection and feed, without the need to the syndeton of complexity at intersection 3 place, effective radiation and feed can be realized, contribute to simplifying antenna and terminal structure.
Preferably, the position of distributing point is connected to signal end at intersection 3 place adjustable ground, then by the position adjustments of distributing point, make it possible to when not changing antenna outward appearance and size (i.e. the size of terminal), the effect of the operating frequency of adjustment antenna flexibly can be reached, make the present invention have good ease for use.
For earth point and ground, link position between distributing point and signal end, below for preferred embodiment as shown in Figure 2, and concrete composition graphs 2 to Fig. 5 is described in detail.Wherein, front view when Fig. 3 is left sides from antenna structure embodiment illustrated in fig. 2; Vertical view when Fig. 4 is the left sides from antenna structure embodiment illustrated in fig. 2; Left view when Fig. 5 is the left sides from antenna structure embodiment illustrated in fig. 2.
As shown in the figure, metal bezel 11 is provided with and signal end, second metal side plate assembly 22 is provided with earth point and distributing point, and earth point and distributing point are connected with signal end with the ground in metal bezel 11 with the slit place between metal bezel 11 at the second metal side plate assembly 22 respectively.
In this technical scheme, because the slit between the second metal side plate assembly 22 and metal bezel 11 is very little, can be narrow to micron order, then when this slit place carries out ground connection and feed, do not need to add independently structure in addition, can realize, to the Net long wave radiation of the aerial signal in terminal and the feed to the slot antenna that slit is formed, contributing to simplifying antenna structure and terminal structure, and being easy to realize.
1, earth point and ground
Preferably, the second metal side plate assembly 22 comprises the first metal side plate 221 and the second metal side plate 223 being positioned at described terminal both sides, be arrangeding in parallel, and the metal roof/base plate 222 connected with described first metal side plate 221 and described second metal side plate 223; Wherein, form slit in described metal roof/base plate 222 and described first metal side plate 221 or the adjacent position of described second metal side plate 223, the ground in described earth point and described metal bezel 11 is interconnected in this slit.
Particularly, there is shown tie point 23 place of the adjacent position of the first metal side plate 221 and metal roof/base plate 222, using the link position as earth point and ground.Certainly, obviously also can use as the second metal side plate 223 and tie point (not indicating in the figure) place of the adjacent position of metal roof/base plate 222.Wherein, metal roof/base plate 222 and the first metal side plate 221 or the adjacent position of the second metal side plate 223 form slit, and namely this slit corresponds to tie point 23 place, and can the narrow micron order cannot differentiated to naked eyes.And the connecting line (specifically not indicating in figure) formed between ground in earth point and metal bezel 11 is positioned at this slit, namely connecting line is not connected with metal roof/base plate 222, first metal side plate 221 or the second metal side plate 223 in this slit length, makes to be spaced between the connecting line formed between the ground on earth point and metal bezel 11 and the connected metallic plate of distributing point.
In fact, here be terminal enclosure is considered as a cuboid, then as one comparatively preferred embodiment, specifically propose position earth point being arranged on the summit being the equal of cuboid, thus one side arranges simply and do not affect the overall steadiness of terminal enclosure, relatively better radiation effect can be obtained on the other hand.
Such as Fig. 6 shows when earth point is connected at tie point 23 place with ground, the S11 of antenna structure of the present invention near 2GHz emulates schematic diagram, can find out reflection coefficient (S11) expect frequency (near 2GHz) on much smaller than-10dB, illustrate that obviously there is good radiance.
2, distributing point and signal end
As one preferred embodiment, the position of distributing point can slit place between the first metal side plate 221 and metal bezel 11, the tie point 24A place namely shown in figure.
As another preferred embodiment, the position of distributing point can slit place between metal roof/base plate 222 and metal bezel 11, the tie point 24B place namely shown in figure.
As another preferred embodiment, the position of distributing point can slit place between the second metal side plate 223 and metal bezel 11, the tie point 24C place namely shown in figure.
Certainly, for other positions on intersection 3, obviously also may be used for as the link position between distributing point and signal end; But when using the gap place corresponded between metal radiation chip module 2 with metal bezel 11 in intersection 3 to be connected, because signal end is arranged in metal bezel 11, then without the need to other independently structures, by means of only simple non-sheet connector, effective connection can be realized, contribute to simplifying antenna structure.
Wherein, according to the dividing mode to metal back cover, the metal back cover part belonging to metal radiation chip module 2 may be positioned at the first half of this metal back cover or Lower Half and to grade other parts.Such as when metal radiation chip module 2 comprises the first half of metal back cover, then the position of distributing point can slit place between the metal top plate of terminal and metal bezel 11; Or when metal radiation chip module 2 comprises the latter half of metal back cover, then the position of distributing point can slit place between the metal base plate of terminal and metal bezel 11.
Fig. 7 to Fig. 9 shows the S11 near 2GHz when carrying out position adjustments to the distributing point on antenna structure according to an embodiment of the invention and emulates schematic diagram.
As shown in the figure, when reality uses this antenna structure, when not changing antenna outward appearance and size (i.e. the size of terminal), the effect of the operating frequency of adjustment antenna flexibly can be reached by adjustment feed position, makes the present invention have good ease for use.
In above-mentioned arbitrary technical scheme, preferably, described earth point is connected with signal end with the ground in described metal bezel 11 by non-sheet connector respectively with described distributing point.
In technique scheme, preferably, described non-sheet connector comprises coaxial cable or microstrip transmission line.
Figure 10 shows the emulation schematic diagram of the Surface current distribution situation of antenna structure according to an embodiment of the invention.
As shown in Figure 10, the slotted section both sides between upper and lower metal shell, electric current is the strongest, and is evenly distributed, and there is not obvious electric current focus, therefore can be smaller by ectocine.
Figure 11 shows the emulation schematic diagram of the radiation direction of antenna structure according to an embodiment of the invention.
As shown in figure 11, the radiation direction in horizontal plane is omnidirectional substantially, namely there is not the weak place of signal, therefore is applicable to various hand-held mobile terminal, as mobile phone, dull and stereotyped mobile phone, panel computer etc.
The invention allows for a kind of terminal, comprise the antenna structure for metal case terminal according to any one of technique scheme.
More than be described with reference to the accompanying drawings technical scheme of the present invention, consider in correlation technique and cannot use all-metal construction in terminal, thus the present invention proposes a kind of antenna structure for metal case terminal and a kind of terminal, terminal can be made to realize all-metal construction, and the radiation effect of antenna can not be affected.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. for an antenna structure for metal case terminal, it is characterized in that, comprising:
Metal base plate assembly, comprises a part for the metal shell of terminal, and described metal base plate assembly is provided with and signal end;
Metal radiation chip module, comprises the remainder of the metal shell of terminal, and the intersection place of described metal radiation chip module and described metal base plate assembly forms slit,
Wherein, described metal radiation chip module is also provided with earth point and distributing point, described earth point and described distributing point are connected with signal end with the ground on described metal base plate assembly respectively; And
Described metal base plate assembly comprises: the metal bezel of described terminal, a part for metal back cover, for connecting the first metal side plate assembly of a part for described metal bezel and described metal back cover;
Described metal radiation chip module comprises: another part of the metal back cover of described terminal, for connecting the second metal side plate assembly of another part of described metal bezel and described metal back cover;
Described metal bezel is provided with and signal end, described second metal side plate assembly is provided with described earth point and described distributing point, and described earth point and described distributing point are connected with signal end with the ground in described metal bezel with the slit place between described metal bezel at described second metal side plate assembly respectively.
2. antenna structure according to claim 1, is characterized in that, described earth point is connected with signal end with the ground on described metal base plate assembly at described slit place respectively with described distributing point.
3. antenna structure according to claim 2, is characterized in that, the position of described distributing point is connected to described signal end at described slit place adjustable ground.
4. antenna structure according to any one of claim 1 to 3, it is characterized in that, described second metal side plate assembly comprises and is positioned at described terminal both sides, the first metal side plate be arranged in parallel and the second metal side plate, and the metal roof/base plate connected with described first metal side plate and described second metal side plate;
Wherein, form slit in described metal roof/base plate and described first metal side plate or the adjacent position of described second metal side plate, the ground in described earth point and described metal bezel is interconnected in this slit.
5. antenna structure according to claim 4, is characterized in that, the slit place of position between described metal roof/base plate and described metal bezel of described distributing point.
6. antenna structure according to any one of claim 1 to 3, is characterized in that, described earth point is connected with signal end with the ground in described metal bezel by non-sheet connector respectively with described distributing point.
7. antenna structure according to claim 6, is characterized in that, described non-sheet connector comprises coaxial cable or microstrip transmission line.
8. a terminal, is characterized in that, comprises the antenna structure for metal case terminal according to any one of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310688075.9A CN103700934B (en) | 2013-12-16 | 2013-12-16 | Antenna structure for metal case terminal and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310688075.9A CN103700934B (en) | 2013-12-16 | 2013-12-16 | Antenna structure for metal case terminal and terminal |
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| Publication Number | Publication Date |
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| CN103700934A CN103700934A (en) | 2014-04-02 |
| CN103700934B true CN103700934B (en) | 2015-05-13 |
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| CN201310688075.9A Active CN103700934B (en) | 2013-12-16 | 2013-12-16 | Antenna structure for metal case terminal and terminal |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329060B (en) * | 2015-06-30 | 2019-04-19 | 比亚迪股份有限公司 | NFC antenna and mobile terminal with it |
| CN107113348B (en) * | 2015-12-17 | 2019-11-01 | 华为技术有限公司 | A kind of communication terminal |
| CN105811074A (en) * | 2016-01-27 | 2016-07-27 | 宇龙计算机通信科技(深圳)有限公司 | Antenna system and mobile terminal |
| CN108493617A (en) * | 2018-05-24 | 2018-09-04 | 努比亚技术有限公司 | A kind of antenna system and communication terminal |
| CN113497348B (en) * | 2021-06-10 | 2022-05-10 | 荣耀终端有限公司 | Antenna structure and terminal equipment |
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| CN102522625A (en) * | 2011-11-22 | 2012-06-27 | 上海安费诺永亿通讯电子有限公司 | Antenna structure of terminal of cellphone with metallic shell |
| CN102800931A (en) * | 2012-08-23 | 2012-11-28 | 广东欧珀移动通信有限公司 | Mobile communication terminal antenna device |
| CN103178344A (en) * | 2013-04-01 | 2013-06-26 | 昆山睿翔讯通通信技术有限公司 | Multi-frequency-band rear metal cover mobile phone antenna |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522625A (en) * | 2011-11-22 | 2012-06-27 | 上海安费诺永亿通讯电子有限公司 | Antenna structure of terminal of cellphone with metallic shell |
| CN102800931A (en) * | 2012-08-23 | 2012-11-28 | 广东欧珀移动通信有限公司 | Mobile communication terminal antenna device |
| CN103178344A (en) * | 2013-04-01 | 2013-06-26 | 昆山睿翔讯通通信技术有限公司 | Multi-frequency-band rear metal cover mobile phone antenna |
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