CN203607544U - Antenna and mobile terminal - Google Patents
Antenna and mobile terminal Download PDFInfo
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- CN203607544U CN203607544U CN201320604806.2U CN201320604806U CN203607544U CN 203607544 U CN203607544 U CN 203607544U CN 201320604806 U CN201320604806 U CN 201320604806U CN 203607544 U CN203607544 U CN 203607544U
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- switching device
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Abstract
The utility model discloses an antenna and a mobile terminal. The mobile terminal comprises the antenna; the antenna comprises a plurality of metal sheets, a medium layer, a ground layer and a switch device; and the medium layer is provided with via holes, the metal sheets are arranged on a surface of the medium layer, the switch device is arranged on another surface of the medium layer, the metal sheets are connected with the switch device through the via holes, and the switch device is connected with the ground layer. Through the manner, reception of the multi-band antenna is achieved, and the antenna at all frequency bands meets detection standards of the SAR.
Description
Technical field
The utility model relates to communication technical field, particularly relates to a kind of antenna and mobile terminal.
Background technology
Antenna, is a vitals of mobile terminal, and mobile terminal is by antenna reception or send data.
Prior art provides the antenna of a kind of electro-magnetic bandgap (Electromagnetic Band-Gap, EBG) structure, and as shown in Figure 1, antenna comprises multiple sheet metals 110, dielectric-slab 120 and the ground plane 130 that array arranges.On dielectric-slab 120, be provided with and all corresponding via holes 112 of sheet metal 110 quantity and position, sheet metal 110 connects ground plane 130 by via hole 112.Antenna reception frequency range is relevant with the quantity of sheet metal 110, so the antenna of prior art, after producing, can be realized the wireless signal of a frequency range of transmitting-receiving.
But there are two problems in existing antenna: 1, how to make electromagnetic radiation local absorption rate (Specific Absorbing Ratio, SAR) can depart from user, in order to avoid human body is caused damage.2, how on individual antenna, to realize multiband and receive.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of antenna and mobile terminal, can realize the examination criteria that the reception of multiband aerial and the antenna of each frequency range meet SAR simultaneously.
For solving the problems of the technologies described above, the utility model provides a kind of antenna on the one hand, and described antenna comprises multiple sheet metals, dielectric layer, ground plane and switching device, and described dielectric layer is provided with via hole, described multiple sheet metal is arranged on a surface of dielectric layer, described switching device is arranged at another surface of described dielectric layer, and described multiple sheet metal is connected with described switching device by described via hole, described switching device is connected with described ground plane, wherein, described switching device is at least provided with and makes the described sheet metal of the first quantity be communicated with ground plane by the first distribution, so that described antenna is operated in the first frequency range configuration mode of the first frequency range, and make the described sheet metal of the second quantity be communicated with ground plane by the second distribution, so that described antenna is operated in the second frequency range configuration mode of the second frequency range.
Wherein, described multiple sheet metal array is arranged at a surface of dielectric layer.
Wherein, described switching device is multitool multithrow switch.
Wherein, the quantity of via hole is multiple, and via hole is corresponding one by one with sheet metal.
For solving the problems of the technologies described above, the utility model also provides mobile terminal on the other hand, comprises antenna, comprise multiple sheet metals, dielectric layer, ground plane and switching device, described dielectric layer is provided with via hole, described multiple sheet metal is arranged on a surface of dielectric layer, described switching device is arranged at another surface of described dielectric layer, and described multiple sheet metal is connected with described switching device by described via hole, described switching device is connected with described ground plane, wherein, described switching device is at least provided with and makes the described sheet metal of the first quantity be communicated with ground plane by the first distribution, so that described antenna is operated in the first frequency range configuration mode of the first frequency range, and make the described sheet metal of the second quantity be communicated with ground plane by the second distribution, so that described antenna is operated in the second frequency range configuration mode of the second frequency range.
Wherein, described mobile terminal also comprises the detection module of the network place frequency range the strongest for detection of the covering signal of described mobile terminal position and the control module according to the present frequency range configuration mode of switching device described in the detected frequency range control of described detection module, described detection module link control module, described control module connects described switching device.
Wherein, described multiple sheet metal array is arranged at a surface of dielectric layer.
Wherein, described switching device is multitool multithrow switch.
Such scheme arranges sheet metal and is connected to ground plane by switching device, so can be set at least two kinds of frequency range configuration modes by switching device, under every kind of frequency range configuration mode, switching device makes the sheet metal of respective amount distribute and be communicated with ground plane by correspondence.And the quantity of the sheet metal of ground connection determines the working frequency range of antenna, and the directivity of the distribution influence antenna of the sheet metal of ground connection, the distribution of adjusting the sheet metal of ground connection can be adjusted the directivity of antenna, while making antenna work, SAR maximum point can depart from user, so, the frequency range configuration mode of switching device is set in the time producing antenna, while making switching device be operated in different frequency range configuration modes, can make the sheet metal of varying number be connected with ground plane by different distributions, thereby make antenna can be operated in different frequency range, and when antenna is operated in different frequency range, SAR maximum point all departs from user, make antenna meet the examination criteria of SAR.
Accompanying drawing explanation
Fig. 1 is the structural representation of the antenna of a kind of electromagnetic bandgap structure of prior art;
Fig. 2 is the schematic diagram that the sheet metal of the utility model antenna ground arranges by the first quantity and the first distribution;
Fig. 3 is the schematic diagram that the sheet metal of the utility model antenna ground arranges by the second quantity and the second distribution;
Fig. 4 is the utility model mobile terminal one example structure schematic diagram;
Fig. 5 is the flow chart of the utility model method for manufacturing antenna one embodiment.
Specific embodiment
Describe below in conjunction with accompanying drawing and specific embodiment.
Refer to Fig. 2 and Fig. 3, the utility model provides a kind of antenna, comprises multiple sheet metals 110, ground plane 130, dielectric layer 120 and switching device (not shown).
Switching device is at least provided with and makes the sheet metal 110 of the first quantity be communicated with ground plane 120 by the first distribution, so that antenna is operated in the first frequency range configuration mode of the first frequency range and make the sheet metal 110 of the second quantity be communicated with ground plane 120 by the second distribution, so that the second frequency range configuration mode that antenna is operated in the second frequency range wherein, the first quantity is to make antenna be operated in the quantity of the sheet metal of the first frequency range, as shown in Figure 2, the second quantity is to make antenna be operated in the quantity of the sheet metal 110 of the second frequency range, as shown in Figure 3.In the present embodiment, switching device is multitool multithrow switch, wherein, each sheet metal connects spending extravagantly in multitool multithrow switch, if while making antenna be operated in the first frequency range, make to be communicated with ground plane respectively with by throwing of the sheet metal of the first quantity of the first distribution in multitool multithrow switch, if while making antenna be operated in the second frequency range, make to be communicated with ground plane respectively with by throwing of the sheet metal of the second quantity of the second distribution in multitool multithrow switch, in other embodiments, can adopt other device, for example, switching device comprises multiple single switch, each sheet metal 110 connects respectively a switch, and split to close by controller and control, make switching device be operated in different frequency range configuration mode.
It should be noted that: the operating frequency of antenna of the present utility model is decided by the area of the sheet metal of ground connection, and the area of single metal sheet in the utility model is determined, so, the operating frequency of antenna is decided by the quantity of the sheet metal of ground connection, therefore, can determine according to the frequency of the first frequency range the first quantity of grounded metal sheet, can determine according to the frequency of the second frequency range the second quantity of the sheet metal of ground connection, and in the time of the mode of operation of design switching device, when switching device is during in the first frequency range configuration mode, the sheet metal 110 of the first quantity is connected with ground plane 130, when switching device is during in the second frequency range configuration mode, the sheet metal 110 of the second quantity is connected with ground plane 130, thereby make antenna can be operated in different frequency ranges.
Further, in the utility model embodiment, multiple sheet metal 110 arrays are arranged at dielectric layer one surface, and as shown in Figures 2 and 3, certainly, multiple sheet metals 110 also can otherwise be arranged, for example: circular arrangement, ellipse are arranged etc.For antenna of the present utility model, under the certain prerequisite of the quantity of the sheet metal of ground connection, the directivity of antenna is relevant with the distribution of the sheet metal of ground connection, for example, the sheet metal that the sheet metal of ground connection is distributed as 4 × 2 aerial radiation directions that distribute and ground connection is 2 × 4 aerial radiation directions that distribute different, can be according to the radiation requirement of the equipment of configuration antenna of the present utility model, first of the sheet metal 110 of the first quantity when antenna is set is operated in the first frequency range distributes, second of the sheet metal 110 of the second quantity when antenna is operated in the second frequency range distributes, so that antenna is while being operated in the first frequency range or the second frequency range, the SAR maximum point of antenna all can depart from user.Wherein, antenna of the present utility model is for mobile terminal, such as: panel computer, mobile phone, PDA etc., can use mobile terminal custom in conjunction with user, and electromagnetic radiation local absorption rate SAR maximum point arranges first the distributing of sheet metal 110 of the first quantity during according to antenna work the first frequency range, make electromagnetic radiation local absorption rate SAR maximum point can depart from user, and then make antenna meet the examination criteria of antenna SAR, in like manner, second of sheet metal 110 is set to distribute, while making antenna work the second frequency range, electromagnetic radiation local absorption rate SAR maximum point can depart from user, and then make antenna meet the examination criteria of SAR.
Those skilled in the art it is also understood that: switching device also can arrange three or more frequency range configuration modes, so that antenna can be worked in three or more frequency ranges, launches no longer one by one to describe herein.
Such scheme sheet metal is connected to ground plane by switching device, and can be set at least two kinds of frequency range configuration modes by switching device, and under every kind of frequency range configuration mode, switching device makes the sheet metal of respective amount distribute and be communicated with ground plane by correspondence.And the quantity of the sheet metal of ground connection determines the working frequency range of antenna, and the directivity of the distribution influence antenna of the sheet metal of ground connection, the distribution of adjusting the sheet metal of ground connection can be adjusted the directivity of antenna, while making antenna work, SAR maximum point can depart from user, so, the frequency range configuration mode of switching device is set in the time producing antenna, while making switching device be operated in different frequency range configuration modes, can make the sheet metal of varying number be connected with ground plane by different distributions, thereby make antenna can be operated in different frequency range, and when antenna is operated in different frequency range, SAR maximum point all departs from user, make antenna meet the examination criteria of SAR.
Refer to Fig. 4, the utility model also provides a kind of mobile terminal.Mobile terminal comprises antenna 40, detection module 20 and control module 30.Antenna 40 comprises multiple sheet metals 410, ground plane 430, dielectric layer 420 and switching device (not shown).
Switching device is at least provided with and makes the sheet metal 110 of the first quantity be communicated with ground plane 120 by the first distribution, so that antenna is operated in the first frequency range configuration mode of the first frequency range and make the sheet metal 110 of the second quantity be communicated with ground plane 120 by the second distribution, so that antenna is operated in the second frequency range configuration mode of the second frequency range, wherein, the first quantity is to make antenna 10 be operated in the quantity of the sheet metal 410 of the first frequency range, and the second quantity is to make antenna 40 be operated in the quantity of the sheet metal of the second frequency range.In the utility model embodiment, multiple sheet metal 110 arrays are arranged at dielectric layer one surface, and as shown in Figures 2 and 3, certainly, multiple sheet metals 110 also can otherwise be arranged, for example: circular arrangement, ellipse are arranged etc.
What deserves to be explained is: the operating frequency of antenna 40 of the present utility model is decided by the area of the sheet metal 410 of ground connection, and the area of single metal sheet 410 in the utility model is determined, so the operating frequency of antenna 40 is decided by the quantity of the sheet metal 410 of ground connection.Under the certain prerequisite of the quantity of the sheet metal 410 of ground connection, the directivity of antenna 40 is relevant with the distribution of the sheet metal of ground connection 410, for example, the sheet metal 410 that the sheet metal 410 of ground connection is distributed as 4 × 2 aerial radiation directions that distribute and ground connection is 2 × 4 aerial radiation directions that distribute different, can be according to the first frequency range of antenna 40, determine the sheet metal 410 of the first quantity, pass through field strength analysis, when finding out antenna and being operated in the first frequency range, SAR maximum point, adjust the distribution of the first quantity metal, make SAR maximum deviation user, now, determine the first distribution of the sheet metal 410 of the first quantity, and the first frequency range configuration mode of ground plane 430 as switching device will be connected by the sheet metal 410 of the first quantity of the first distribution, in like manner, determine the sheet metal 410 of the second quantity when antenna 40 is operated in the second frequency range, and the second distribution of the sheet metal 410 of the second quantity, and the second frequency range configuration mode of ground plane 410 as switching device will be connected by the sheet metal 410 of the second quantity of the second distribution, thereby make mobile terminal can be operated in different frequency range, and mobile terminal is while being operated in different frequency range, still can meet the examination criteria of SAR.
Those skilled in the art it is also understood that: switching device also can arrange three or more frequency range configuration modes, so that mobile terminal can be worked in three or more frequency ranges, launches no longer one by one to describe herein.
Such scheme sheet metal is connected to ground plane by switching device, and can be set at least two kinds of frequency range configuration modes by switching device, and under every kind of frequency range configuration mode, switching device makes the sheet metal of respective amount distribute and be communicated with ground plane by correspondence.And the quantity of the sheet metal of ground connection determines the working frequency range of antenna, and the directivity of the distribution influence antenna of the sheet metal of ground connection, the distribution of adjusting the sheet metal of ground connection can be adjusted the directivity of antenna, while making antenna work, SAR maximum point can depart from user, so, the frequency range configuration mode of switching device is set in the time producing antenna, while making switching device be operated in different frequency range configuration modes, can make the sheet metal of varying number be connected with ground plane by different distributions, thereby make antenna can be operated in different frequency range, and when antenna is operated in different frequency range, SAR maximum point all departs from user, make antenna meet the examination criteria of SAR.
Above-mentioned antenna can be made and be obtained by following manufacture method, refers to Fig. 5, and antenna manufacturing method comprises the steps:
S201: manufacture multiple sheet metals, ground plane and switching device, and multiple sheet metals are connected with switching device with ground plane.
Multiple sheet metals are one end of connecting valve device respectively, and the other end of switching device connects ground plane, forms the agent structure of antenna.Wherein, multiple sheet metals can be connected with switching device by form of firmware, dielectric layer also can be set, dielectric layer is provided with via hole, multiple sheet metal arrays are arranged on dielectric layer, and be connected with one end of switching device by via hole, step 201 can be specially again: manufacture multiple sheet metals, ground plane, dielectric layer and switching device, and multiple sheet metal arrays are arranged on a surface of dielectric layer, switching device is arranged at another surface of dielectric layer, and multiple sheet metals are connected with switching device by via hole, switching device is connected with ground plane.In the utility model embodiment, the quantity of via hole can be multiple, and via hole is corresponding one by one with sheet metal, and each sheet metal is connected with one end of switching device by a via hole; Certainly, switching device also can directly be arranged in dielectric layer, one-body molded with dielectric layer, switching device also can arrange the frequency range configuration mode control end of control switch device, wherein, control end is arranged at the edge of dielectric layer, the control end of controller connecting valve device, for the frequency range configuration mode of control switch device, and then the control antenna frequency range of working.
S202: the first quantity of determining sheet metal according to the frequency of the first frequency range.
The first quantity is to make antenna be operated in the quantity of the sheet metal of the first frequency range, and wherein, the first frequency range is one of them frequency range that can work after antenna sizing, can artificially set as required, and for example artificially setting the first frequency range is 900MHz.
Antenna of the present utility model is the antenna of EBG structure, the operating frequency of antenna is decided by the area of the sheet metal of ground connection, in the utility model embodiment, the area of single metal sheet is determined, so, the operating frequency of antenna is decided by the quantity of the sheet metal of ground connection, therefore, can determine according to the frequency of the first frequency range the first quantity of the sheet metal of ground connection.
S203: determine the first distribution of the sheet metal of the first quantity according to electromagnetic radiation local absorption rate SAR.
Wherein, first of the sheet metal of the first quantity distributes can make antenna be operated in the first frequency range time, and SAR maximum point departs from user.
It should be noted that: under the certain prerequisite of the quantity of the sheet metal of ground connection, the directivity of antenna is relevant with the distribution of the sheet metal of ground connection, for example, the sheet metal of ground connection is that the sheet metal of 4 × 2 aerial radiation directions that distribute and ground connection is 2 × 4 aerial radiation directions that distribute different, therefore, can be according to the user's use habit of mobile terminal that disposes the utility model antenna, determining after the sheet metal of the first quantity, the first distribution of the sheet metal of the first quantity is set, while making antenna be operated in the first frequency range, SAR maximum point departs from user, first of the sheet metal of the first above-mentioned quantity distributes can be by repeatedly measuring and obtain.
S204: the first frequency range configuration mode of switching device is set, so that the sheet metal of the first quantity distributes and is communicated with ground plane by first.
Switching device is provided with multiple frequency range configuration modes, and switching device, in the time of different frequency range configuration mode, can make to be communicated with ground plane by the sheet metal of the varying number of different distributions.
S205: the second quantity of determining sheet metal according to the frequency of the second frequency range.
The second frequency range is another frequency range that can work after antenna sizing, can artificially set as required, and for example artificially setting the first frequency range is 800MHz.
S206: determine the second distribution of the sheet metal of the second quantity according to SAR.
Second of the sheet metal of the second quantity distributes, and can make antenna be operated in the second frequency range time, the SAR maximum point of antenna departs from user, wherein, for, second of the sheet metal of the second quantity distributes can be by repeatedly field strength measurement acquisition.
S207: the second frequency range configuration mode of switching device is set, so that the sheet metal of the second quantity distributes and is communicated with ground plane by second.
When switching device is during in the first frequency range configuration mode, antenna is operated in the first frequency range, when switching device is during in the second frequency range configuration mode, antenna is operated in the second frequency range, and, no matter antenna work the first frequency range or the second frequency range, SAR maximum point all departs from user, and antenna meets SAR testing requirement.
It will be appreciated by those skilled in the art that: if antenna wishes to work in three or more frequency ranges, can be that switching device arranges more frequency range configuration mode according to above-mentioned method, launch no longer one by one to describe herein.
Such scheme sheet metal is connected to ground plane by switching device, and can be set at least two kinds of frequency range configuration modes by switching device, and under every kind of frequency range configuration mode, switching device makes the sheet metal of respective amount distribute and be communicated with ground plane by correspondence.And the quantity of the sheet metal of ground connection determines the working frequency range of antenna, and the directivity of the distribution influence antenna of the sheet metal of ground connection, the distribution of adjusting the sheet metal of ground connection can be adjusted the directivity of antenna, while making antenna work, SAR maximum point can depart from user, so, the frequency range configuration mode of switching device is set in the time producing antenna, while making switching device be operated in different frequency range configuration modes, can make the sheet metal of varying number be connected with ground plane by different distributions, thereby make antenna can be operated in different frequency range, and when antenna is operated in different frequency range, SAR maximum point all departs from user, make antenna meet the examination criteria of SAR.
In more than describing, in order to illustrate rather than in order limiting, to have proposed the detail such as particular system structure, interface, technology, to thoroughly understand the utility model.But, it will be clear to one skilled in the art that and in other embodiment that there is no these details, also can realize the utility model.In other situation, omit the detailed description to well-known device, circuit and method, in order to avoid unnecessary details hinders description of the present utility model.
Claims (8)
1. an antenna, is characterized in that, comprises multiple sheet metals, dielectric layer, ground plane and switching device,
Described dielectric layer is provided with via hole;
Described multiple sheet metal is arranged on a surface of dielectric layer, described switching device is arranged at another surface of described dielectric layer, and described multiple sheet metal is connected with described switching device by described via hole, described switching device is connected with described ground plane, wherein, described switching device is at least provided with and makes the described sheet metal of the first quantity be communicated with ground plane by the first distribution, so that described antenna is operated in the first frequency range configuration mode of the first frequency range, and make the described sheet metal of the second quantity be communicated with ground plane by the second distribution, so that described antenna is operated in the second frequency range configuration mode of the second frequency range.
2. antenna according to claim 1, is characterized in that, described switching device is multitool multithrow switch.
3. antenna according to claim 1, is characterized in that, described multiple sheet metal arrays are arranged at a surface of described dielectric layer.
4. antenna according to claim 1, is characterized in that, the quantity of described via hole is multiple, and described via hole is corresponding one by one with sheet metal.
5. a mobile terminal, is characterized in that, comprises antenna, and described antenna comprises multiple sheet metals, dielectric layer, ground plane and switching device,
Described dielectric layer is provided with via hole;
Described multiple sheet metal is arranged on a surface of dielectric layer, described switching device is arranged at another surface of described dielectric layer, and described multiple sheet metal is connected with described switching device by described via hole, described switching device is connected with described ground plane, wherein, described switching device is at least provided with and makes the described sheet metal of the first quantity be communicated with ground plane by the first distribution, so that described antenna is operated in the first frequency range configuration mode of the first frequency range, and make the described sheet metal of the second quantity be communicated with ground plane by the second distribution, so that described antenna is operated in the second frequency range configuration mode of the second frequency range.
6. mobile terminal according to claim 5, it is characterized in that, described mobile terminal also comprises the detection module of the network place frequency range the strongest for detection of the covering signal of described mobile terminal position and the control module according to the present frequency range configuration mode of switching device described in the detected frequency range control of described detection module, described detection module link control module, described control module connects described switching device.
7. mobile terminal according to claim 5, is characterized in that, described switching device is multitool multithrow switch.
8. mobile terminal according to claim 5, is characterized in that, described multiple sheet metal arrays are arranged at described dielectric layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604806.2U CN203607544U (en) | 2013-09-26 | 2013-09-26 | Antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604806.2U CN203607544U (en) | 2013-09-26 | 2013-09-26 | Antenna and mobile terminal |
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| Publication Number | Publication Date |
|---|---|
| CN203607544U true CN203607544U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320604806.2U Expired - Lifetime CN203607544U (en) | 2013-09-26 | 2013-09-26 | Antenna and mobile terminal |
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| CN (1) | CN203607544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108123212A (en) * | 2016-11-29 | 2018-06-05 | 北京小米移动软件有限公司 | The method, apparatus and antenna system of control terminal antenna system radiation |
-
2013
- 2013-09-26 CN CN201320604806.2U patent/CN203607544U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108123212A (en) * | 2016-11-29 | 2018-06-05 | 北京小米移动软件有限公司 | The method, apparatus and antenna system of control terminal antenna system radiation |
| CN108123212B (en) * | 2016-11-29 | 2020-06-02 | 北京小米移动软件有限公司 | Method and device for controlling radiation of terminal antenna system and antenna system |
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Granted publication date: 20140521 |