CN202797257U - Antenna device for mobile communication terminal - Google Patents
Antenna device for mobile communication terminal Download PDFInfo
- Publication number
- CN202797257U CN202797257U CN201220419541.4U CN201220419541U CN202797257U CN 202797257 U CN202797257 U CN 202797257U CN 201220419541 U CN201220419541 U CN 201220419541U CN 202797257 U CN202797257 U CN 202797257U
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- communication terminal
- mobile communication
- antenna
- radiant body
- metal
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Abstract
The utility model discloses an antenna device for a mobile communication terminal. The antenna device comprises a metal frame arranged on a housing of the mobile communication terminal, a first radiation body and a second radiation body that are disposed on an antenna carrier, and a circuit mainboard disposed inside the mobile communication terminal. The main ground on the circuit mainboard is connected with the metal frame. The first radiation body is provided with a coupling slit and is connected with a radio frequency feed source on the circuit mainboard via a conductive connector. A grounding point on the first radiation body is connected with the metal frame via a conductive connector. The second radiation body serves as a double grounding parasitic antenna branch of the antenna device and is used for expanding low-frequency bandwidth. The antenna device of the utility model belongs to a coupling feed-in monopole antenna device, and has the advantages of super-low low-frequency bandwidth, good performance, high efficiency or the like compared with the prior art. Meanwhile, the antenna device helps to well solve a problem of coexistence between large metal pieces of the mobile communication terminal and an antenna, and helps to better guarantee a metallic sense of the appearance of the mobile communication terminal in terms of shape.
Description
Technical field
The utility model relates to a kind of mobile communication terminal antenna device, is specifically related to a kind of monopole antenna device that is applied to the coupling feed-in type of mobile phone.
Background technology
Along with the development of wireless communication technique, also more and more higher to the requirement of wireless telecommunications system, the antenna that receives and send as electromagnetic wave has also had various structures to adapt to the requirement of communication apparatus, and therefore the performance of antenna or structure have also had larger challenge.Wireless communication technique flourish, so that the information submodule that carries on the mobile terminal system is also more and more, generally carry multiple sub-communication module such as the system of current smart mobile phone, the increase of this a little communication module will inevitably cause the expansion of antenna frequency band and the increase of antenna structure complexity.Simultaneously, the hand-held terminal devices such as smart mobile phone are towards the future development of slimming and strong metal texture, and the hand-held terminal device of slimming and strong metal texture has brought huge challenge for undoubtedly the design of antenna.
Current mobile communication terminal built-in antenna generally adopts planar inverted-F antenna (PIFA) and unipole antenna (Monopole Antenna).Planar inverted-F antenna has been owing to the having relatively high expectations of area and height, seriously limited the layout of complete machine and lightening, because many antenna arrangements are limit, and planar inverted-F antenna limits by its radiation mechanism, causes its poor-performing, thereby do not adopted in a large number simultaneously.And with regard to unipole antenna, the existence of the large metalwork of close region has fatal impact to its antenna performance.Therefore, existing mobile communication terminal built-in antenna haves much room for improvement.
The utility model content
For overcoming the problem of the deficiencies in the prior art and existence, the utility model provides a kind of mobile communication terminal antenna device, this antenna assembly is the unipole antenna form of coupling feed-in type, have wide very wide, the advantage such as antenna performance is good of low-frequency band, also solved well the problem of antenna with large metalwork coexistence simultaneously.
The utility model is achieved through the following technical solutions: a kind of mobile communication terminal antenna device, comprise the metal edge frame of being located on the mobile communication terminal shell, antenna carrier, be located at the circuit main board in the mobile communication terminal, be provided with the radio frequency feedder of this antenna assembly on the described circuit main board, be provided with the first radiant body and second radiant body of this antenna assembly on the antenna carrier, wherein, described the first radiant body is provided with distributing point and earth point, described distributing point is connected with radio frequency feedder by the Elecrical connector I, described earth point is connected with metal edge frame by the Elecrical connector III, is used to form a unipole antenna; The two ends of described the second radiant body respectively are provided with an earth point, one earth point is connected with ground on the circuit main board by the Elecrical connector II, another earth point is connected with metal edge frame by the Elecrical connector IV, is used to form the two ground connection passive antenna branch of described antenna assembly; Being connected on described metal edge frame and the circuit main board is provided with one or more slit mainly on the metal edge frame, be provided with at least a slit in the side edge near the metal edge frame of the second radiant body.
Further, described the first radiant body is provided with the coupling slit that is become the coupling feed-in be used to the feed-in mode that makes radio frequency feedder by direct feed-in; This coupling slit is arranged between the earth point and distributing point on the first radiant body, and should coupling slit near end of earth point.
Further, described the second radiant body integral body is rectangle, and is arranged on the antenna carrier of a side of distributing point on close the first radiant body.
Preferably, described metal edge frame is arranged at the front at display screen of mobile communication terminal place, and this metal edge frame comprises the upper Metal decorative part of being located at the mobile communication terminal front, lower Metal decorative part and left metal moulding, right metal moulding; Left metal moulding, right metal moulding all with circuit main board on be connected mainly, described upper Metal decorative part, right metal moulding, lower Metal decorative part connect successively, and described slit is arranged near between the left metal moulding and lower Metal decorative part of the second radiant body.
The utility model compared with prior art, have the low frequency bandwidth super wide, antenna performance good, the efficient advantages of higher, also solve well simultaneously the large metalwork of mobile communication terminal and the problem of antenna coexistence, in moulding, guaranteed better the metal-like of mobile communication terminal outward appearance.
Description of drawings
Fig. 1 is the structural representation of metal edge frame on handset shell among the utility model embodiment;
Fig. 2 is the structural representation that antenna assembly is arranged at the mobile phone back side among the utility model embodiment;
Fig. 3 is the perspective view of the antenna assembly of the utility model embodiment when removing handset shell.
Among the figure: Metal decorative part, the right metal moulding of 103-, the left metal moulding of 104-, 105-slit under 1-metal edge frame, 10-phonate hole, the upper Metal decorative part of 101-, the 102-, 201-the first radiant body, 202-the second radiant body, the 201-1-slit that is coupled, 301-Elecrical connector I, 302-Elecrical connector II, 303-Elecrical connector III, 304-Elecrical connector IV, 4-circuit main board, 401-radio frequency feedder, the 5-antenna carrier, the 6-display screen.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with accompanying drawing, take the antenna assembly that is applied to mobile phone as specific embodiment the utility model is further described.
Such as accompanying drawing 1, Fig. 2 and shown in Figure 3, a kind of antenna for mobile telephone set, comprise the metal edge frame 1 of being located on the handset shell, antenna carrier 5, be located at the circuit main board 4 in the mobile phone, be provided with the radio frequency feedder 401 of this antenna assembly on the described circuit main board 4, be provided with the first radiant body 201 and second radiant body 202 of this antenna assembly on the antenna carrier 5, wherein, described the first radiant body 201 is provided with distributing point and earth point, described distributing point is connected with radio frequency feedder 401 by Elecrical connector I 301, described earth point is connected with metal edge frame 1 by Elecrical connector III 303, is used to form a unipole antenna; The two ends of described the second radiant body 202 respectively are provided with an earth point, one earth point is connected with ground on the circuit main board 4 by Elecrical connector II 302, another earth point is connected with metal edge frame 1 by Elecrical connector IV 304, is used to form the two ground connection passive antenna branch of described antenna assembly; Being connected on described metal edge frame 1 and the circuit main board 4 mainly, at least be provided with a slit 105 on the metal edge frame 1, the position that this slit 105 arranges is relevant with the second radiant body 202, and slit 105 is arranged on the side frame of metal edge frame 1 of close the second radiant body 202.Certainly, also can in other positions of metal edge frame 1 other slits be set as required, describe in detail no longer for example here.
Described the first radiant body 201 is provided with the coupling slit 201-1 that is become the coupling feed-in be used to the feed-in mode that makes radio frequency feedder 401 by direct feed-in; This coupling slit 201-1 is arranged between the earth point and distributing point on the first radiant body 201, and should coupling slit 201-1 near end of earth point.Described the second radiant body 202 integral body are rectangle, and are arranged on the antenna carrier 5 of a side of distributing point on close the first radiant body 201.
As shown in Figure 1, described metal edge frame 1 is arranged at the mobile phone front at mobile phone display screen 6 places, and this metal edge frame 1 comprises upper Metal decorative part 101, lower Metal decorative part 102 and the left metal moulding 103 in mobile phone front, right metal moulding 104; Described upper Metal decorative part 101, right metal moulding 104, lower Metal decorative part 102 connect successively, be provided with slit 105 on the metal edge frame 1, the position that this slit 105 arranges is relevant with the position of the second radiant body 202 on being arranged at antenna carrier 5, and it is arranged between the close left metal moulding 103 and lower Metal decorative part 102 of the second radiant body 202.Left metal moulding 103, right metal moulding 104 all with circuit main board 4 on be connected mainly, the quantity of ground connection and position can be adjusted according to concrete needs.In addition, be provided with the phonate hole 10 of a mobile phone loud speaker in the middle of the upper Metal decorative part 101.Metal edge frame 1 can be installed on the plastic casing of mobile phone by structure buckle, the mode such as inlay, and becomes the appearance of mobile phone, guarantees better the metal-like of cell phone appearance in moulding.
As shown in Figure 2, the handset shell back side is provided with the antenna carrier 5 of plastic material, and antenna carrier 5 is arranged at the lower end of handset shell, and the lower Metal decorative part 102 of its upright projection and metal edge frame 1 is in the same end of handset shell.The first radiant body 201, the second radiant body 202 are arranged on the antenna carrier 5.From the angle at the handset shell back side, the first radiant body 201 is positioned at the left side of antenna carrier 5, and the second radiant body 202 is positioned at the right side of antenna carrier 5.Wherein, be provided with on the first radiant body 201 coupling slit 201-1, this coupling slit 201-1 be arranged at Elecrical connector III 303 near.The first radiant body 201, the second radiant body 202 can pass through the process Installation such as FPC, sheet material or LDS on antenna carrier 5.
As shown in Figure 3, circuit main board 4 is located between the first radiant body 201 and the lower Metal decorative part 102, the first radiant body 201, circuit main board 4 and lower Metal decorative part 102 threes form " sandwich " structure, and the first radiant body 201, the second radiant body 202 are in the same plane.The earth point of the first radiant body 201 is positioned on the end near first radiant body 201 at handset shell edge, and this earth point is connected with the lower Metal decorative part 102 of metal edge frame 1 by Elecrical connector III 303; The distributing point of the first radiant body 201 is positioned near on the first radiant body 201 of the second radiant body 202, and this distributing point is connected with radio frequency feedder 401 on the circuit main board 4 by Elecrical connector I 301.Coupling slit 201-1 on the first radiant body 201 is arranged between earth point and the distributing point and near on the position of earth point.The second radiant body 202 is positioned at a side of the distributing point of the first radiant body 201, and its integral body is rectangle.The second radiant body 202 two ends respectively are provided with an earth point, the earth point of the distributing point of close the first radiant body 201 is connected with the ground of circuit main board 4 by Elecrical connector II 302, another earth point is connected with the lower Metal decorative part 102 of metal edge frame 1 by Elecrical connector IV 304, wherein, the shape of Elecrical connector I 301, Elecrical connector II 302, Elecrical connector III 303, Elecrical connector IV 304 and position all can be adjusted according to actual needs.
The main resonance mechanism of this antenna for mobile telephone set is: (1) is connected successively by Elecrical connector I 301, the first radiant body 201, Elecrical connector III 303, lower Metal decorative part 102, radio frequency feedder 401 on the mainboard 4 forms a Monopole(one pole by 301 feed-ins of Elecrical connector I) the coupling feed antenna.The resonance principle of antenna as can be known thus: this antenna quarter-wave resonance is in the 900MHz of mobile phone frequency range, / 2nd wave resonance of this antenna are in the DCS(of mobile phone Digital Cellular System simultaneously, 1710 MHz-1880MHz) frequency range, the PCS(personal communication service) band segment; The coupling slit 201-1 that arranges on the first radiant body 201, make radio frequency feedder 401 become the coupling feed-in from the mode of direct feed-in, thereby changed the CURRENT DISTRIBUTION on the antenna loop, when the user holds slit 105 on the tight metal edge frame 1, therefore the performance of antenna can not receive impact, has solved well the problem of antenna for mobile phone with large metalwork coexistence simultaneously yet.(2) connected successively by Elecrical connector II 302, the second radiant body 202, Elecrical connector IV 304 and lower Metal decorative part 102, form the two ground connection passive antenna branch of this antenna assembly, main 850MHz frequency range, PCS, the UMTS(universal mobile telecommunications system of producing) resonance of part high-frequency band.This antenna for mobile phone adopts the Monopole antenna form, has low frequency bandwidth super wide (its low frequency bandwidth can reach 700MHz-1000MHz), good, the efficient advantages of higher of antenna performance, has guaranteed the performance for wireless communications of mobile phone excellence.
Above-described embodiment is the better implementation of the utility model, is not to be to restriction of the present utility model, and under the prerequisite that does not break away from the present utility model design, any apparent replacement is all within protection range of the present utility model.
Claims (7)
1. mobile communication terminal antenna device, comprise metal edge frame (1), the antenna carrier (5) be located on the mobile communication terminal shell, be located at the circuit main board (4) in the mobile communication terminal, be provided with the radio frequency feedder (401) of this antenna assembly on the described circuit main board, be provided with first radiant body (201) and the second radiant body (202) of this antenna assembly on the antenna carrier, it is characterized in that:
Described the first radiant body (201) is provided with distributing point and earth point, and distributing point is connected with radio frequency feedder (401) by Elecrical connector I (301), and earth point is connected with metal edge frame by Elecrical connector III (303), is used to form a unipole antenna;
The two ends of described the second radiant body (202) respectively are provided with an earth point, one earth point is connected with ground on the circuit main board (4) by Elecrical connector II (302), another earth point is connected with metal edge frame by Elecrical connector IV (304), is used to form the two ground connection passive antenna branch of described antenna assembly;
Being connected on described metal edge frame (1) and the circuit main board is provided with one or more slit mainly on the metal edge frame, be provided with at least a slit (105) in the side edge near the metal edge frame of the second radiant body.
2. mobile communication terminal antenna device according to claim 1 is characterized in that: described the first radiant body (201) is provided with the coupling slit (201-1) that is become the coupling feed-in be used to the feed-in mode that makes radio frequency feedder (401) by direct feed-in.
3. mobile communication terminal antenna device according to claim 2 is characterized in that: described coupling slit (201-1) is arranged between the earth point and distributing point on the first radiant body (201), and should coupling slit near end of earth point.
4. mobile communication terminal antenna device according to claim 3, it is characterized in that: described the second radiant body (202) integral body is rectangle, and is arranged on the antenna carrier (5) near a side of distributing point on the first radiant body.
5. each described mobile communication terminal antenna device according to claim 1-4, it is characterized in that: described metal edge frame (1) is arranged at the front at display screen of mobile communication terminal (6) place, and this metal edge frame comprises the upper Metal decorative part (101) of being located at the mobile communication terminal front, lower Metal decorative part (102) and left metal moulding (103), right metal moulding (104).
6. described mobile communication terminal antenna device according to claim 5, it is characterized in that: described upper Metal decorative part (101), right metal moulding (104), lower Metal decorative part (102) connect successively, and described slit (105) are arranged near between the left metal moulding (103) of the second radiant body (202) and the lower Metal decorative part (102).
7. described mobile communication terminal antenna device according to claim 6 is characterized in that: described left metal moulding (103), right metal moulding (104) all with circuit main board (4) on be connected mainly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220419541.4U CN202797257U (en) | 2012-08-23 | 2012-08-23 | Antenna device for mobile communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220419541.4U CN202797257U (en) | 2012-08-23 | 2012-08-23 | Antenna device for mobile communication terminal |
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| Publication Number | Publication Date |
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| CN202797257U true CN202797257U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220419541.4U Expired - Lifetime CN202797257U (en) | 2012-08-23 | 2012-08-23 | Antenna device for mobile communication terminal |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103427163A (en) * | 2013-05-27 | 2013-12-04 | 信维创科通信技术（北京）有限公司 | Multi-band mobile phone antenna based on metal ring |
| CN104089203A (en) * | 2014-07-02 | 2014-10-08 | 浙江生辉照明有限公司 | LED lighting equipment and antenna configuration method of LED lighting equipment |
| CN104124524A (en) * | 2013-04-26 | 2014-10-29 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device provided with same |
| CN104241844A (en) * | 2013-06-06 | 2014-12-24 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication apparatus using the same |
| CN104425898A (en) * | 2013-08-22 | 2015-03-18 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication apparatus applying same |
| WO2016000182A1 (en) * | 2014-06-30 | 2016-01-07 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device for wireless communications |
| CN105514586A (en) * | 2016-01-20 | 2016-04-20 | 深圳市信维通信股份有限公司 | Mobile terminal with metal shell and antenna structure thereof |
| US9698469B2 (en) | 2013-06-06 | 2017-07-04 | Chiun Mai Communication Systems, Inc. | Antenna structure and wireless communication device using the same |
| CN111029730A (en) * | 2019-12-26 | 2020-04-17 | 惠州Tcl移动通信有限公司 | Antenna structure and mobile terminal |
| CN111261998A (en) * | 2018-11-30 | 2020-06-09 | 北京小米移动软件有限公司 | Antenna and terminal equipment with same |
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- 2012-08-23 CN CN201220419541.4U patent/CN202797257U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014029156A1 (en) * | 2012-08-23 | 2014-02-27 | 广东欧珀移动通信有限公司 | Antenna device for mobile communication terminal |
| 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 |
| CN104124524A (en) * | 2013-04-26 | 2014-10-29 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device provided with same |
| CN103427163B (en) * | 2013-05-27 | 2015-11-25 | 信维创科通信技术（北京）有限公司 | Based on the multi-band mobile phone antenna of becket |
| CN103427163A (en) * | 2013-05-27 | 2013-12-04 | 信维创科通信技术（北京）有限公司 | Multi-band mobile phone antenna based on metal ring |
| CN104241844A (en) * | 2013-06-06 | 2014-12-24 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication apparatus using the same |
| US9698469B2 (en) | 2013-06-06 | 2017-07-04 | Chiun Mai Communication Systems, Inc. | Antenna structure and wireless communication device using the same |
| CN104425898B (en) * | 2013-08-22 | 2019-05-21 | 深圳富泰宏精密工业有限公司 | The wireless communication device of antenna structure and the application antenna structure |
| CN104425898A (en) * | 2013-08-22 | 2015-03-18 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication apparatus applying same |
| WO2016000182A1 (en) * | 2014-06-30 | 2016-01-07 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device for wireless communications |
| CN104089203A (en) * | 2014-07-02 | 2014-10-08 | 浙江生辉照明有限公司 | LED lighting equipment and antenna configuration method of LED lighting equipment |
| CN105514586A (en) * | 2016-01-20 | 2016-04-20 | 深圳市信维通信股份有限公司 | Mobile terminal with metal shell and antenna structure thereof |
| CN105514586B (en) * | 2016-01-20 | 2019-03-26 | 深圳市信维通信股份有限公司 | A kind of mobile terminal and its antenna structure of metal shell |
| CN111261998A (en) * | 2018-11-30 | 2020-06-09 | 北京小米移动软件有限公司 | Antenna and terminal equipment with same |
| CN111029730A (en) * | 2019-12-26 | 2020-04-17 | 惠州Tcl移动通信有限公司 | Antenna structure and mobile terminal |
| CN111029730B (en) * | 2019-12-26 | 2021-09-28 | 惠州Tcl移动通信有限公司 | Antenna structure and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |