CN105281020A - Mobile terminal antenna device and mobile terminal - Google Patents
Mobile terminal antenna device and mobile terminal Download PDFInfo
- Publication number
- CN105281020A CN105281020A CN201410487769.0A CN201410487769A CN105281020A CN 105281020 A CN105281020 A CN 105281020A CN 201410487769 A CN201410487769 A CN 201410487769A CN 105281020 A CN105281020 A CN 105281020A
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- Prior art keywords
- metal arm
- coupled
- mobile terminal
- metal
- excitation sheet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
Abstract
The invention relates to the technical field of electronics, and provides a mobile terminal antenna device. The mobile terminal antenna device comprises a metal frame one side of which is provided with at least one breaking point, and an excitation sheet connected to the radio frequency front end, the breaking point separates the metal frame into a first metal arm and a second metal arm, the first metal arm is shorter than the second metal arm, the excitation sheet is coupled with the first metal arm, and the second metal arm is coupled with the excitation sheet through the first metal arm. The invention also provides a mobile terminal which uses the abovementioned antenna device. The mobile terminal antenna device and the mobile terminal provided by the invention solve the problem of antenna low-frequency bandwidth, and has the characteristic of being convenient to debug.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of metal frame antenna device.
Background technology
For the mobile terminal of common plastic shell, user prefers the mobile terminal of metal-like, and the aerial signal problem brought thus is a difficult problem for puzzlement industry always.
Compare effective solution at present and have three kinds: break multipoint system in directly-fed side break multipoint system and manifold type base of multipoint system, directly-fed base of breaking.Wherein each solution has several concrete implementation.
The coupling feed-in type antenna assembly of existing a kind of mobile terminal, employing be antenna-coupled metal frame base breakpoint mode; Antenna branch one is coupled with the first longer metal arm, produces low-frequency resonant, and antenna branch two and the second metal arm produce high-frequency resonant.If breakpoint location is moved to right, the first metal arm is made to be shorter than the second metal arm (as shown in diagram 1b), then the low frequency smaller bandwidth of antenna.As shown in Figure 1 b, breakpoint moves to right.As illustrated in figure 1 c, breakpoint is when right side, and the narrow bandwidth of the former invention of low frequency bandwidth ratio is a lot, and high frequency bandwidth improves.The coupling energy of existing USB module and metal arm strengthens the communication performance of mobile terminal when high frequency when using USB to charge in addition.And experimentally reach a conclusion, when using USB charging, the performance of low-frequency range declines.
Summary of the invention
In order to overcome the technological deficiency of prior art low-frequency band width, the embodiment of the present invention provides a kind of mobile terminal antenna device on the one hand, comprise: metal frame, on described metal frame while be provided with at least one breakpoint, and be connected to the excitation sheet of radio-frequency front-end, metal frame is divided into the first metal arm and the second metal arm by described breakpoint, the first described metal arm is shorter than the second metal arm, described excitation sheet is coupled with the first described metal arm, and described second metal arm is coupled with described excitation sheet by the first metal arm.
The embodiment of the present invention provides a kind of mobile terminal on the other hand, comprise display screen, mainboard, USB module, loud speaker, antenna, is connected to the excitation sheet of radio-frequency front-end, and the metal frame of described antenna is provided with at least one breakpoint, metal frame is divided into the first metal arm and the second metal arm by described breakpoint, described first metal arm is shorter than the second metal arm, and described excitation sheet is coupled with the first described metal arm, and described second metal arm is coupled with described excitation sheet by the first metal arm.
The mobile terminal antenna device that the embodiment of the present invention provides and mobile terminal thereof compared with prior art tool have the following advantages:
1. the low-frequency resonant that the second metal arm produces is coupled to excitation sheet by the first metal arm, although the first metal arm mainly produces high-frequency resonant, but simultaneously also there is contribution to low-frequency resonant, compare the bandwidth that scheme that excitation sheet is only coupled to long metal arm has better low frequency;
2. the second metal arm not only produces low-frequency resonant but also produce high frequency secondary resonance, has both contributed the bandwidth of low frequency, and contribute to high frequency bandwidth again.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in detail:
Fig. 1 a, Fig. 1 b are the structural representations of prior art;
Fig. 1 c is the antenna actual measurement S parameter figure of prior art;
Fig. 2 is the structural representation of a kind of mobile terminal antenna device embodiment one of the present invention;
Fig. 3 is the low-frequency impedance circle diagram of a kind of mobile terminal antenna device embodiment one of the present invention;
Fig. 4 is the high-frequency resistance circle diagram of a kind of mobile terminal antenna device embodiment one of the present invention;
Fig. 5 is the equivalent capacity Parameter Map of a kind of mobile terminal antenna device L string C of the present invention at different frequency range;
Fig. 6 is the antenna actual measurement S parameter figure of a kind of mobile terminal antenna device embodiment one of the present invention;
Fig. 7 is the structural representation of a kind of mobile terminal antenna device embodiment two of the present invention;
Fig. 8 is the structural representation of a kind of mobile terminal antenna device embodiment three of the present invention;
Fig. 9 is a kind of mobile terminal of the present invention when using USB charging, the Parameter Map that antenna efficiency improves.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " radial direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
When the embodiment of the present invention mentions the ordinal number such as " first ", " second ", unless the meaning of based on context its certain order of representation, should be understood to has been only the use of differentiation.
Embodiment 1
Please refer to Fig. 2, is a specific embodiment of a kind of mobile terminal antenna device of the present invention.
A kind of mobile terminal antenna device of the present embodiment, comprising: a mainboard or display screen metallic support 11; One metal frame 12, this metal frame 12 is provided with at least one breakpoint, and is connected to the excitation sheet of radio-frequency front-end.
Described breakpoint, is divided into the first metal arm 1 and the second metal arm 2 metal frame; The first described metal arm 1 to the second metal arm 2 is short, and described excitation sheet is coupled with the first described metal arm 1, and described second metal arm 2 is coupled with described excitation sheet by the first metal arm 1.
Described excitation sheet, comprises feeding pin 8, antenna sheet 3 being connected to radio-frequency front-end, the some lump coupling elements 4,5 between antenna sheet and the first metal arm, the lamped element 6,7 between antenna sheet and mainboard ground.Antenna sheet is positioned at inside the first metal arm, between metal arm and mainboard.
Described lump coupling element 4,5 can be the electric capacity of 0.2-3pF, or electric capacity string (inductance electric capacity), and it is equivalent to low frequency 1-3pF, high frequency 0.2-1.5pF.
Described feeding pin 8 place can increase matching network and optimize antenna impedance bandwidth further.After primary antenna low-frequency impedance and string 2pF electric capacity, impedance is just more applicable as shown in Figure 3.As shown in Figure 4 primary antenna high-frequency resistance and string 1pF after impedance just more applicable.
Next step needs structure series network with frequency change, is allowed to condition at low frequency about equivalent capacity 2pF, is allowed to condition at high frequency equivalent about 1pF.Component value as Fig. 5 just in time realizes this function.Network topology can also change the mode of electric capacity string (electric capacity inductance) into.Different antennae physical dimension, the series network with frequency change of needs has slight change, needs suitably to adjust.
Described first metal arm can produce high-frequency resonant, and described second metal arm can produce low-frequency resonant and high frequency secondary resonance.
Described first metal arm can produce high-frequency resonant and frequently be coupled to excitation sheet, and described second metal arm can produce high frequency secondary resonance and be coupled to the first metal arm and be then coupled to excitation sheet.
Described second metal arm can be coupled with described excitation sheet by the first metal arm, and described second metal arm can produce low-frequency resonant, is coupled to the first metal arm, and the first metal arm is coupled to excitation sheet, makes excitation sheet produce low-frequency resonant.
In the present embodiment, the second metal arm and mainboard can lamped element be set, facilitate its high frequency secondary resonance frequency tuning.
In the present embodiment, described coupling is by capacitive coupling, also can adopt close to each other between antenna sheet with metal arm and be coupled.
Fig. 6 is the antenna actual measurement S parameter figure described in Fig. 2, and the low-and high-frequency bandwidth of visible antenna is all fine.
The present embodiment advantage is:
1, the low-frequency resonant that the second metal arm produces is coupled to excitation sheet by the first metal arm, although the first metal arm mainly produces high-frequency resonant, but simultaneously also there is contribution to low-frequency resonant, compare the bandwidth that scheme that excitation sheet is only coupled to long metal arm has better low frequency;
2, the second metal arm not only produces low-frequency resonant but also produce high frequency secondary resonance, has both contributed the bandwidth of low frequency, and contribute to high frequency bandwidth again
Embodiment 2
Please refer to Fig. 7, is the structural representation of another specific embodiment of a kind of mobile terminal antenna device of the present invention.
As different from Example 1, described antenna sheet directly with the first metal arm near being coupled, while antenna sheet optimised shape receive mainboard, and parallel connection without lamped element to mainboard.Do not use lamped element effectively can simplify Antenna Design, there is saving antenna arrangement and take up room, reduce the beneficial effect of antenna manufacturing cost.
Embodiment 3
Please refer to Fig. 8, is the structural representation of another specific embodiment of antenna assembly of the present invention.
With embodiment 1 and embodiment 2 unlike, first metal arm can use the second antenna sheet 10, second metal arm of ground connection that the third antenna sheet 20 of ground connection can be used to substitute, this embodiment can be applied to technical advantage of the present invention in the mobile terminal of nonmetal frame, makes a kind of mobile terminal antenna device described in the embodiment of the present invention have range of application widely.
Embodiment 4
The embodiment of the present invention additionally provides a kind of mobile terminal, comprise display screen, mainboard, USB module, loud speaker, antenna, is connected to the excitation sheet of radio-frequency front-end, and the metal frame of described antenna is provided with at least one breakpoint, metal frame is divided into the first metal arm and the second metal arm by described breakpoint, described first metal arm is shorter than the second metal arm, and described excitation sheet is coupled with the first described metal arm, and described second metal arm is coupled with described excitation sheet by the first metal arm.
Described first metal arm can produce high-frequency resonant, and described second metal arm can produce low-frequency resonant and high frequency secondary resonance.
Described first metal arm can produce high-frequency resonant and frequently be coupled to excitation sheet, and described second metal arm can produce high frequency secondary resonance and be coupled to the first metal arm and be then coupled to excitation sheet.
Described second metal arm can be coupled with described excitation sheet by the first metal arm, and described second metal arm can produce low-frequency resonant, is coupled to the first metal arm, and the first metal arm is coupled to excitation sheet, makes excitation sheet produce low-frequency resonant.
Fig. 9 be the embodiment of the present invention mobile terminal use USB charging time, antenna efficiency improve situation.
The communication performance technological deficiency that can the decline when embodiment of the present invention overcomes that mobile terminal is at low frequency when using USB charging, can ensure that, when using USB charging, the call performance of height frequency range is all in preferable states.
Above content is in conjunction with specific embodiments to further description of the present invention, can not regard as specific embodiment and be confined to these explanations.As: can understand the position freely adjusting each breakpoint of metal frame under the prerequisite that the invention is intended to, the position of the first earth point and the second tie point and each coupling branch length carry out the optimization of antenna.For those skilled in the art; without departing from the inventive concept of the premise; the specific embodiment of the present invention is not limited to above-mentioned example; in specific embodiment of the invention process; embodiment can also make some deductions or optimization, and these are deduced or optimize and all should be considered as belonging to protection scope of the present invention.
Claims (7)
1. a mobile terminal antenna device, comprise: metal frame, on described metal frame while be provided with at least one breakpoint, and be connected to the excitation sheet of radio-frequency front-end, it is characterized in that, metal frame is divided into the first metal arm and the second metal arm by described breakpoint, and the first described metal arm is shorter than the second metal arm, described excitation sheet is coupled with the first described metal arm, and described second metal arm is coupled with described excitation sheet by the first metal arm.
2. a kind of mobile terminal antenna device according to claim 1, is characterized in that, described first metal arm produces high-frequency resonant, and described second metal arm produces low-frequency resonant and high frequency secondary resonance.
3. a kind of mobile terminal antenna device according to claim 1, is characterized in that, described excitation sheet is coupled with described first metal arm, and described second metal arm is coupled with described excitation sheet by the first metal arm, comprising:
Described first metal arm produces high-frequency resonant and is frequently coupled to excitation sheet, and described second metal arm generation high frequency secondary resonance is coupled to the first metal arm and is then coupled to excitation sheet.
4. a kind of mobile terminal antenna device according to claim 1, is characterized in that, described second metal arm is coupled with described excitation sheet by the first metal arm, comprising:
Described second metal arm produces low-frequency resonant, and be coupled to the first metal arm, the first metal arm is coupled to excitation sheet, makes excitation sheet produce low-frequency resonant.
5. a kind of mobile terminal antenna device according to any one of Claims 1-4, is characterized in that, described in be coupled as coupling close to each other, or to be coupled by capacity cell cross-over connection.
6. a kind of mobile terminal antenna device according to claim 1, is characterized in that, the first described metal arm and the second metal arm are antenna sheet.
7. a mobile terminal, comprises display screen, mainboard, USB module, loud speaker, antenna, is connected to the excitation sheet of radio-frequency front-end, it is characterized in that, the metal frame of described antenna has one side to be provided with at least one breakpoint, and metal frame is divided into the first metal arm and the second metal arm by described breakpoint, and described first metal arm is shorter than the second metal arm, described excitation sheet is coupled with the first described metal arm, and described second metal arm is coupled with described excitation sheet by the first metal arm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487769.0A CN105281020B (en) | 2014-09-22 | 2014-09-22 | A kind of mobile terminal antenna device and its mobile terminal |
| PCT/CN2015/086499 WO2016045459A1 (en) | 2014-09-22 | 2015-08-10 | Antenna device for mobile terminal, and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487769.0A CN105281020B (en) | 2014-09-22 | 2014-09-22 | A kind of mobile terminal antenna device and its mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105281020A true CN105281020A (en) | 2016-01-27 |
| CN105281020B CN105281020B (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410487769.0A Active CN105281020B (en) | 2014-09-22 | 2014-09-22 | A kind of mobile terminal antenna device and its mobile terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105281020B (en) |
| WO (1) | WO2016045459A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329062A (en) * | 2016-09-30 | 2017-01-11 | 努比亚技术有限公司 | Multi-frequency antenna structure and electronic device |
| CN107611565A (en) * | 2017-09-13 | 2018-01-19 | 维沃移动通信有限公司 | A kind of GPS WIFI antennas and mobile terminal |
| CN112290197A (en) * | 2020-09-21 | 2021-01-29 | 深圳市思讯通信技术有限公司 | Miniature directional high-gain antenna applied to TWS true wireless earphone |
| US10944151B2 (en) | 2017-02-24 | 2021-03-09 | Chiun Mai Communication Systems, Inc. | Antenna structure and wireless communication device using same |
| CN113555689A (en) * | 2020-04-24 | 2021-10-26 | 深圳市万普拉斯科技有限公司 | Communication device and mobile terminal |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114142220A (en) * | 2021-11-30 | 2022-03-04 | 维沃移动通信有限公司 | Antenna structure and electronic device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101114733A (en) * | 2006-07-28 | 2008-01-30 | 连展科技电子（昆山）有限公司 | Integrated multi-frequency antenna with wide band function |
| CN102368575A (en) * | 2011-09-08 | 2012-03-07 | 广东欧珀移动通信有限公司 | Built-in secondary radiating antenna |
| WO2012144197A1 (en) * | 2011-04-22 | 2012-10-26 | パナソニック株式会社 | Portable wireless terminal |
| CN103151613A (en) * | 2013-01-31 | 2013-06-12 | 广东欧珀移动通信有限公司 | Coupling feed-in type antenna device of mobile terminal |
| CN202997046U (en) * | 2012-03-28 | 2013-06-12 | 株式会社村田制作所 | Multiband antenna apparatus |
| US20130203364A1 (en) * | 2012-02-08 | 2013-08-08 | Dean F. Darnell | Tunable Antenna System with Multiple Feeds |
| CN203386889U (en) * | 2013-07-30 | 2014-01-08 | 广东欧珀移动通信有限公司 | Handheld equipment antenna device with metal frame |
| CN103545610A (en) * | 2012-07-11 | 2014-01-29 | 启碁科技股份有限公司 | Broadband antenna and wireless communication device |
| CN104022350A (en) * | 2014-06-12 | 2014-09-03 | 电子科技大学 | Intelligent machine antenna with metal frame |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM289264U (en) * | 2005-08-10 | 2006-04-01 | Compal Electronics Inc | Display frame having antenna |
| CN203103509U (en) * | 2013-01-31 | 2013-07-31 | 广东欧珀移动通信有限公司 | Coupled feed-in antenna device of mobile terminal |
| CN203536554U (en) * | 2013-09-16 | 2014-04-09 | 中兴通讯股份有限公司 | Metal frame antenna |
| CN103811864B (en) * | 2014-01-25 | 2016-08-17 | 惠州硕贝德无线科技股份有限公司 | A kind of metal edge frame double-frequency coupling antennae |
-
2014
- 2014-09-22 CN CN201410487769.0A patent/CN105281020B/en active Active
-
2015
- 2015-08-10 WO PCT/CN2015/086499 patent/WO2016045459A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101114733A (en) * | 2006-07-28 | 2008-01-30 | 连展科技电子（昆山）有限公司 | Integrated multi-frequency antenna with wide band function |
| WO2012144197A1 (en) * | 2011-04-22 | 2012-10-26 | パナソニック株式会社 | Portable wireless terminal |
| CN102368575A (en) * | 2011-09-08 | 2012-03-07 | 广东欧珀移动通信有限公司 | Built-in secondary radiating antenna |
| US20130203364A1 (en) * | 2012-02-08 | 2013-08-08 | Dean F. Darnell | Tunable Antenna System with Multiple Feeds |
| CN202997046U (en) * | 2012-03-28 | 2013-06-12 | 株式会社村田制作所 | Multiband antenna apparatus |
| CN103545610A (en) * | 2012-07-11 | 2014-01-29 | 启碁科技股份有限公司 | Broadband antenna and wireless communication device |
| CN103151613A (en) * | 2013-01-31 | 2013-06-12 | 广东欧珀移动通信有限公司 | Coupling feed-in type antenna device of mobile terminal |
| CN203386889U (en) * | 2013-07-30 | 2014-01-08 | 广东欧珀移动通信有限公司 | Handheld equipment antenna device with metal frame |
| CN104022350A (en) * | 2014-06-12 | 2014-09-03 | 电子科技大学 | Intelligent machine antenna with metal frame |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329062A (en) * | 2016-09-30 | 2017-01-11 | 努比亚技术有限公司 | Multi-frequency antenna structure and electronic device |
| US10944151B2 (en) | 2017-02-24 | 2021-03-09 | Chiun Mai Communication Systems, Inc. | Antenna structure and wireless communication device using same |
| CN107611565A (en) * | 2017-09-13 | 2018-01-19 | 维沃移动通信有限公司 | A kind of GPS WIFI antennas and mobile terminal |
| CN107611565B (en) * | 2017-09-13 | 2020-11-10 | 维沃移动通信有限公司 | GPS-WIFI antenna and mobile terminal |
| CN113555689A (en) * | 2020-04-24 | 2021-10-26 | 深圳市万普拉斯科技有限公司 | Communication device and mobile terminal |
| CN113555689B (en) * | 2020-04-24 | 2024-01-30 | 深圳市万普拉斯科技有限公司 | Communication device and mobile terminal |
| CN112290197A (en) * | 2020-09-21 | 2021-01-29 | 深圳市思讯通信技术有限公司 | Miniature directional high-gain antenna applied to TWS true wireless earphone |
| CN112290197B (en) * | 2020-09-21 | 2023-07-14 | 深圳市思讯通信技术有限公司 | Miniature directional high-gain antenna applied to TWS true wireless earphone |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016045459A1 (en) | 2016-03-31 |
| CN105281020B (en) | 2019-10-18 |
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