CN204230418U - Based on the LTE frequency range antenna for mobile phone of metal framework - Google Patents
Based on the LTE frequency range antenna for mobile phone of metal framework Download PDFInfo
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- CN204230418U CN204230418U CN201420683946.8U CN201420683946U CN204230418U CN 204230418 U CN204230418 U CN 204230418U CN 201420683946 U CN201420683946 U CN 201420683946U CN 204230418 U CN204230418 U CN 204230418U
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Abstract
The utility model discloses a kind of LTE frequency range antenna for mobile phone based on metal framework, its mainly adopt be close to mobile phone body week side metal framework is set, described metal framework is provided with symmetrically the first gap and the second gap, be provided with containing cavity between described ground plate and metal framework, in described containing cavity, be equipped with antenna structure; Described antenna structure comprises antenna of drawing money on credit, short antenna, passive antenna, current feed department, the first resonance branch and the second resonance branch, one end of described current feed department contacts with ground plate, and the other end of current feed department extends to the bottom of metal framework and contacts with metal framework; Described passive antenna contacts with ground plate, and one end of described second resonance branch contacts with current feed department, and the other end of the second resonance branch is unsettled, and described first resonance branch contacts with metal framework.The utility model structure is simple, good communication quality, saves cost, is convenient to enhance productivity.
Description
Technical field
The utility model relates to a kind of antenna for mobile phone, particularly relates to a kind of LTE frequency range antenna for mobile phone based on metal framework.
Background technology
Along with the development of LTE technology, increasing mobile phone terminal starts to support LTE frequency range.The requirement of LTE frequency range is: antenna low frequency bandwidth is 698-960MHz, and high frequency bandwidth is 1710-2690MHz.The bandwidth Design of most antenna in prior art, the bandwidth range of low frequency is 824-960 MHz, and the bandwidth range of high frequency is 1710-2170MHz, and the bandwidth Design of conventional aerial can not meet the requirement of LTE frequency range.Simultaneously in order to increase specious requirement, increasing cellular telephone handset makers is intended to design thinner mobile phone and uses metal finishing framework.Due to the characteristic requirements of antenna, antenna parameter is greatly limited by the metal framework of mobile phone outer surface.This is mainly because metal framework distance antenna radiation unit is very near, metal decoration frame can be caused like this to put up a part into antenna, pay particular attention in the Antenna Design of mobile phone.Although the mobile phone on many market has metal framework, but most antenna for mobile phone does not support LTE frequency range, only have the antenna of a seldom part can support LTE frequency range, but the complex structure of this some antennas design, and be not easy to manufacture, also can increase production cost.For this reason, be necessary further to design above-mentioned antenna for mobile phone.
Utility model content
Technical problem to be solved in the utility model is: provide that a kind of structure is simple, good communication quality, the LTE frequency range antenna for mobile phone based on metal framework that can enhance productivity.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: provide a kind of LTE frequency range antenna for mobile phone based on metal framework, comprise mobile phone body, ground plate and antenna structure, described mobile phone body is provided with storage tank, ground plate is equipped with in described storage tank, also comprise the metal framework being close to mobile phone body week side, described metal framework is provided with symmetrically the first gap and the second gap, be provided with containing cavity between described ground plate and metal framework, in described containing cavity, be equipped with antenna structure;
Described antenna structure comprises antenna of drawing money on credit, short antenna, passive antenna, current feed department, the first resonance branch and the second resonance branch, one end of described current feed department contacts with ground plate, and the other end of current feed department extends to the bottom of metal framework and contacts with metal framework; Described passive antenna contacts with ground plate, and one end of described second resonance branch contacts with current feed department, and the other end of the second resonance branch is unsettled, and described first resonance branch contacts with metal framework.
Further, described first gap and the second gap to be arranged on the sidewall of the left and right sides and respectively bottom metal framework.
Further, the other end of described first resonance branch contacts with current feed department, described in antenna of drawing money on credit be the metallic framing portions of the first gap to current feed department, described short antenna is the metallic framing portions of the second gap to current feed department.
Further, described first gap and the second gap are arranged on the bottom sidewall of metal framework respectively.
Further, described first resonance branch comprises symmetrically arranged left resonance branch and right resonance branch, described left resonance branch and right resonance branch are connected with metal framework respectively, described antenna of drawing money on credit is left resonance branch and the left resonance branch length sum to the metallic framing portions of current feed department, and described short antenna is right resonance branch and the right resonance branch length sum to the metallic framing portions of current feed department.
Further, described current feed department offers slot, is provided with and can welds additional inductor portion in described slot.
Further, antenna of drawing money on credit described in generates the resonance frequency of 840MHz; Described passive antenna generates the resonance frequency of 1.7GHz, and described first resonance branch generates the resonance frequency of 2.3G GHz, and described second resonance branch generates the resonance frequency of 2.7GHz.
Further, the length of antenna, passive antenna, the first resonance branch and the second resonance branch of drawing money on credit described in is the quarter-wave that it generates resonance frequency.
The beneficial effects of the utility model are: be different from most antenna for mobile phone of the prior art and do not support LTE frequency range, only have the antenna of a seldom part can support LTE frequency range, but the complex structure of this some antennas design, and be not easy to manufacture, also production cost can be increased, be not easy the defect implemented, the utility model provides a kind of LTE frequency range antenna for mobile phone based on metal framework, by offering the first symmetrical gap and the second gap on metal framework, LTE frequency range can be supported.Antenna structure carries out further architecture advances simultaneously, comprise antenna of drawing money on credit, short antenna, passive antenna, current feed department, the first resonance branch and the second resonance branch, stable resonance frequency can be generated, ensure that antenna for mobile phone supports LTE full frequency band, can communication quality be improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model based on LTE frequency range antenna for mobile phone one embodiment of metal framework;
Fig. 2 is the operating frequency figure curve chart of different antennae unit in the utility model;
Fig. 3 is the utility model antenna return loss curve chart;
Fig. 4 is the efficiency curve diagram of the utility model antenna low-frequency range;
Fig. 5 is the efficiency curve diagram of the utility model antenna high band;
Fig. 6 is the structural representation of the utility model based on another embodiment of LTE frequency range antenna for mobile phone of metal framework.
Label declaration:
1, ground plate; 2, metal framework; 21, the first gap; 22, the second gap;
31, to draw money on credit antenna; 32, short antenna; 33, passive antenna; 4, current feed department;
51, the first resonance branch; 52, the second resonance branch; 6, additional inductor portion is welded.
Embodiment
By describing technology contents of the present utility model in detail, realized object and effect, accompanying drawing is coordinated to be explained below in conjunction with execution mode.
The design of the utility model most critical is: by offering the first symmetrical gap and the second gap on metal framework, LTE frequency range can be supported, antenna structure carries out further architecture advances, comprise antenna of drawing money on credit, short antenna, passive antenna, current feed department, the first resonance branch and the second resonance branch, stable resonance frequency can be generated, ensure that antenna for mobile phone supports LTE full frequency band, can communication quality be improved.
Please refer to Fig. 1 to Fig. 6, a kind of LTE frequency range antenna for mobile phone based on metal framework, comprise mobile phone body, ground plate 1 and antenna structure, described mobile phone body is provided with storage tank, be equipped with ground plate 1 in described storage tank, also comprise the metal framework 2 being close to mobile phone body week side, described metal framework 2 is provided with symmetrically the first gap 21 and the second gap 22, be provided with containing cavity between described ground plate 1 and metal framework 2, in described containing cavity, be equipped with antenna structure;
Described antenna structure comprises antenna 31 of drawing money on credit, short antenna 32, passive antenna 33, current feed department 4, first resonance branch 51 and the second resonance branch 52, one end of described current feed department 4 contacts with ground plate 1, and the other end of current feed department 4 extends to the bottom of metal framework 2 and contacts with metal framework 2; Described passive antenna 33 contacts with ground plate 1, and one end of described second resonance branch 52 contacts with current feed department 4, and the other end of the second resonance branch 52 is unsettled, and described first resonance branch 51 contacts with metal framework 2.
From foregoing description, the beneficial effects of the utility model are: be different from most antenna for mobile phone of the prior art and do not support LTE frequency range, only have the antenna of a seldom part can support LTE frequency range, but the complex structure of this some antennas design, and be not easy to manufacture, also production cost can be increased, be not easy the defect implemented, the utility model provides a kind of LTE frequency range antenna for mobile phone based on metal framework, by offering the first symmetrical gap 21 and the second gap 22 on metal framework 2, LTE frequency range can be supported.Antenna structure carries out further architecture advances simultaneously, comprise antenna 31 of drawing money on credit, short antenna 32, passive antenna 33, current feed department 4, first resonance branch 51 and the second resonance branch 52, stable resonance frequency can be generated, ensure that antenna for mobile phone supports LTE full frequency band, can communication quality be improved.By drawing money on credit, 698-960MHz resonance frequency supported by antenna 31, and passive antenna 33, first resonance branch 51 and the second resonance branch 52 support 1710-2690MHz resonance frequency.
The position of current feed department 4 is determined as follows: low frequency bandwidth is generated by antenna 31 of drawing money on credit, and low frequency should near 830MHz resonance frequency, as long as the position of current feed department 4 is fixed, the position of short antenna 32 is also just fixing.The resonance frequency of short antenna 32 can reach desired value by the first resonance branch 51 of adjustment increase and the second resonance branch 52.In fact, do not add the first resonance branch 51 antenna, during resonance, electric current is only by short antenna 32, and when adding the first resonance branch 51, during resonance, electric current is only by the first resonance branch 51, instead of short antenna 32.Such current path change can adjust resonance frequency.Really, the first resonance branch 51 adds the degree of freedom of antenna structure of mobile phole.
Antenna system is embodied as concrete example below using the mobile phone of 70mm*140mm, consult Fig. 2 to Fig. 5, Fig. 2 is the operating frequency curve chart of different antennae unit, therefrom can find out, when 1, not adding passive antenna 33, first resonance branch 51 and the second resonance branch 52, although low frequency bandwidth is better, high frequency bandwidth is poor.2, after adding the first resonance branch 51, high-frequency resonant frequency 2.0GHz to 2.2GHz, effect is better, and high-frequency parameter is improved.3, after adding the second resonance branch 52, when high-frequency resonant frequency is near 2.7GHz, effect is better, and high-frequency parameter is further enhanced.4, after adding passive antenna 33, when resonance frequency is near 1.7GHz frequently, effect is better, and high-frequency parameter is further strengthened.5, the high frequency band of whole LTE can be covered by the first resonance branch 51, second resonance branch 52 and passive antenna 33.
According to above-mentioned design principle, Fig. 3 is the return loss plot figure of antenna measurement; Fig. 4 is the efficiency curve diagram of antenna low-frequency range, and Fig. 5 is the efficiency curve diagram of antenna front end; Can find out from Fig. 3 to Fig. 5 that the return loss of antenna and the efficiency of antenna can meet technical requirement.
Consult Fig. 1, further, described first gap 21 and the second gap 22 to be arranged on the sidewall of the left and right sides and respectively bottom metal framework 2.
Consult Fig. 1, further, the other end of described first resonance branch 51 contacts with current feed department 4, described in antenna 31 of drawing money on credit be metal framework 2 part of the first gap 21 to current feed department 4, described short antenna 32 is metal framework 2 part of the second gap 22 to current feed department 4.
Consult Fig. 6, further, described first gap 21 and the second gap 22 are arranged on the bottom sidewall of metal framework 2 respectively.
Consult Fig. 6, further, described first resonance branch 51 comprises symmetrically arranged left resonance branch and right resonance branch, described left resonance branch and right resonance branch are connected with metal framework 2 respectively, described antenna 31 of drawing money on credit is left resonance branch and the left resonance branch length sum to metal framework 2 part of current feed department 4, and described short antenna 32 is right resonance branch and the right resonance branch length sum to metal framework 2 part of current feed department 4.
Consult Fig. 6, further, described current feed department 4 offers slot, and described slot is provided with welding additional inductor portion 6.
Further, additional inductance can play the effective length of increases (or adjustment) antenna 31 (and short antenna 32) of drawing money on credit, and therefore can be created on the resonance frequency of about 840MHz by antenna 31 of drawing money on credit described in the size of adjustment additional electrical inductance value; Described passive antenna 33 generates the resonance frequency of 1.7GHz, and described first resonance branch 51 generates the resonance frequency of 2.3G GHz, and described second resonance branch 52 generates the resonance frequency of 2.7GHz.
Further, the length of antenna 31, passive antenna 33, first resonance branch 51 and the second resonance branch 52 of drawing money on credit described in is the quarter-wave that it generates resonance frequency.
Please refer to Fig. 1, embodiment one of the present utility model is: a kind of LTE frequency range antenna for mobile phone based on metal framework, comprise mobile phone body, described mobile phone body is provided with storage tank, ground plate 1 and antenna structure is equipped with in described storage tank, also comprise the metal framework 2 being close to mobile phone body week side, described metal framework 2 is provided with symmetrically the first gap 21 and the second gap 22, described first gap 21 and the second gap 22 are arranged at the bottom position near metal framework 2 left and right sides respectively, containing cavity is provided with between described ground plate 1 and metal framework 2, antenna structure is equipped with in described containing cavity, described antenna structure comprises antenna 31 of drawing money on credit, short antenna 32, passive antenna 33, current feed department 4, first resonance branch 51 and the second resonance branch 52, one end of described current feed department 4 contacts with ground plate 1, and the other end of current feed department 4 extends to the bottom of metal framework 2 and contacts with metal framework 2, described passive antenna 33 contacts with ground plate 1, one end of described second resonance branch 52 contacts with current feed department 4, the other end of the second resonance branch 52 is unsettled, described first resonance branch 51 contacts with metal framework 2, the other end of the first resonance branch 51 contacts with current feed department 4, described antenna 31 of drawing money on credit is metal framework 2 part of the first gap 21 to current feed department 4, and described short antenna 32 is metal framework 2 part of the second gap 22 to current feed department 4.
Please refer to Fig. 6, embodiment two of the present utility model is: a kind of LTE frequency range antenna for mobile phone based on metal framework, comprise mobile phone body, described mobile phone body is provided with storage tank, ground plate 1 and antenna structure is equipped with in described storage tank, also comprise the metal framework 2 being close to mobile phone body week side, described metal framework 2 is provided with symmetrically the first gap 21 and the second gap 22, described first gap 21 and the second gap 22 are arranged at the bottom position near metal framework 2 left and right sides respectively, containing cavity is provided with between described ground plate 1 and metal framework 2, antenna structure is equipped with in described containing cavity,
Described antenna structure comprises antenna 31 of drawing money on credit, short antenna 32, passive antenna 33, current feed department 4, first resonance branch 51 and the second resonance branch 52, one end of described current feed department 4 contacts with ground plate 1, and the other end of current feed department 4 extends to the bottom of metal framework 2 and contacts with metal framework 2, described passive antenna 33 contacts with ground plate 1, one end of described second resonance branch 52 contacts with current feed department 4, the other end of the second resonance branch 52 is unsettled, described first resonance branch 51 comprises symmetrically arranged left resonance branch and right resonance branch, described left resonance branch and right resonance branch are connected with metal framework 2 respectively, described antenna 31 of drawing money on credit is left resonance branch and the left resonance branch length sum to metal framework 2 part of current feed department 4, described short antenna 32 is right resonance branch and the right resonance branch length sum to metal framework 2 part of current feed department 4.
In sum, the mistake that the utility model provides offers the first symmetrical gap and the second gap at the left and right sides sidewall of metal framework or bottom sidewall, can support LTE frequency range.Antenna structure carries out further architecture advances simultaneously, comprise antenna of drawing money on credit, short antenna, passive antenna, current feed department, the first resonance branch and the second resonance branch, stable resonance frequency can be generated, ensure that antenna for mobile phone supports LTE full frequency band, can improve communication quality, advantage major embodiment of the present utility model is as follows:
1, the LTE frequency range antenna for mobile phone based on metal framework of this programme can support all frequencies of LTE frequency band, and signal strength signal intensity is better, good communication quality;
2, the antenna structure of mobile phole of this programme simply, easily realizes, and can reduce the production cost of production, improves the production efficiency of mobile phone;
3, the antenna for mobile phone of this programme offers slot in the left and right sides of metal framework symmetry or bottom metal framework, offers symmetrical slot, convenient manufacture, and can improve communication quality further.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalents utilizing the utility model specification and accompanying drawing content to do; or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (8)
1. the LTE frequency range antenna for mobile phone based on metal framework, comprise mobile phone body, ground plate and antenna structure, described mobile phone body is provided with storage tank, ground plate is equipped with in described storage tank, it is characterized in that, also comprise the metal framework being close to mobile phone body week side, described metal framework is provided with symmetrically the first gap and the second gap, be provided with containing cavity between described ground plate and metal framework, in described containing cavity, be equipped with antenna structure;
Described antenna structure comprises antenna of drawing money on credit, short antenna, passive antenna, current feed department, the first resonance branch and the second resonance branch, one end of described current feed department contacts with ground plate, and the other end of current feed department extends to the bottom of metal framework and contacts with metal framework; Described passive antenna contacts with ground plate, and one end of described second resonance branch contacts with current feed department, and the other end of the second resonance branch is unsettled, and described first resonance branch contacts with metal framework.
2. the LTE frequency range antenna for mobile phone based on metal framework according to claim 1, is characterized in that, described first gap and the second gap to be arranged on the sidewall of the left and right sides and respectively bottom metal framework.
3. the LTE frequency range antenna for mobile phone based on metal framework according to claim 2, it is characterized in that, the other end of described first resonance branch contacts with current feed department, described antenna of drawing money on credit is the metallic framing portions of the first gap to current feed department, and described short antenna is the metallic framing portions of the second gap to current feed department.
4. the LTE frequency range antenna for mobile phone based on metal framework according to claim 1, it is characterized in that, described first gap and the second gap are arranged on the bottom sidewall of metal framework respectively.
5. the LTE frequency range antenna for mobile phone based on metal framework according to claim 4, it is characterized in that, described first resonance branch comprises symmetrically arranged left resonance branch and right resonance branch, described left resonance branch and right resonance branch are connected with metal framework respectively, described antenna of drawing money on credit is left resonance branch and the left resonance branch length sum to the metallic framing portions of current feed department, and described short antenna is right resonance branch and the right resonance branch length sum to the metallic framing portions of current feed department.
6. the LTE frequency range antenna for mobile phone based on metal framework according to claim 4, it is characterized in that, described current feed department offers slot, is provided with and can welds additional inductor portion in described slot.
7. the LTE frequency range antenna for mobile phone based on metal framework according to any one of claim 1-6, is characterized in that, described in antenna of drawing money on credit generate the resonance frequency of 840MHz; Described passive antenna generates the resonance frequency of 1.7GHz, and described first resonance branch generates the resonance frequency of 2.3G GHz, and described second resonance branch generates the resonance frequency of 2.7GHz.
8. the LTE frequency range antenna for mobile phone based on metal framework according to claim 7, is characterized in that, described in the draw money on credit length of antenna, passive antenna, the first resonance branch and the second resonance branch be the quarter-wave that it generates resonance frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683946.8U CN204230418U (en) | 2014-11-14 | 2014-11-14 | Based on the LTE frequency range antenna for mobile phone of metal framework |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683946.8U CN204230418U (en) | 2014-11-14 | 2014-11-14 | Based on the LTE frequency range antenna for mobile phone of metal framework |
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| CN204230418U true CN204230418U (en) | 2015-03-25 |
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| CN201420683946.8U Withdrawn - After Issue CN204230418U (en) | 2014-11-14 | 2014-11-14 | Based on the LTE frequency range antenna for mobile phone of metal framework |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362427A (en) * | 2014-11-14 | 2015-02-18 | 深圳市信维通信股份有限公司 | LTE frequency band mobile phone antenna based on metal frame |
| CN111066202A (en) * | 2017-09-08 | 2020-04-24 | 株式会社村田制作所 | Antenna device supporting dual frequency bands |
| CN112072314A (en) * | 2020-09-07 | 2020-12-11 | 北京字节跳动网络技术有限公司 | Multi-frequency antenna and electronic equipment |
-
2014
- 2014-11-14 CN CN201420683946.8U patent/CN204230418U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362427A (en) * | 2014-11-14 | 2015-02-18 | 深圳市信维通信股份有限公司 | LTE frequency band mobile phone antenna based on metal frame |
| CN104362427B (en) * | 2014-11-14 | 2017-07-18 | 深圳市信维通信股份有限公司 | LTE frequency range antenna for mobile phone based on metal framework |
| CN111066202A (en) * | 2017-09-08 | 2020-04-24 | 株式会社村田制作所 | Antenna device supporting dual frequency bands |
| CN112072314A (en) * | 2020-09-07 | 2020-12-11 | 北京字节跳动网络技术有限公司 | Multi-frequency antenna and electronic equipment |
| CN112072314B (en) * | 2020-09-07 | 2023-06-06 | 抖音视界有限公司 | Multi-frequency antenna and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150325 Effective date of abandoning: 20170718 |