CN103490176A - Four-antenna diversity system applied to mobile phone - Google Patents
Four-antenna diversity system applied to mobile phone Download PDFInfo
- Publication number
- CN103490176A CN103490176A CN201310441365.3A CN201310441365A CN103490176A CN 103490176 A CN103490176 A CN 103490176A CN 201310441365 A CN201310441365 A CN 201310441365A CN 103490176 A CN103490176 A CN 103490176A
- Authority
- CN
- China
- Prior art keywords
- antenna
- mobile phone
- coupling feed
- unipole
- length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention provides a four-antenna diversity system applied to a mobile phone. The four-antenna diversity system applied to the mobile phone comprises a substrate, a main antenna unit and three auxiliary antenna units. The main antenna unit and the three auxiliary antenna units are located on the same side of the substrate. By the adoption of the four-antenna diversity system, high efficiency is achieved, transmission rate is improved, and influence on antenna efficiency from impedance matching is well avoided.
Description
Technical field
The invention belongs to the wireless communication antenna technical field, relate to the multiaerial system for communication terminal, be specially a kind of four antenna diversity systems that are applied to mobile phone.
Background technology
The present mobile communication lane terminal, the antenna of single port input can't complete diversified demand.Multi-port antenna is complementary because it is beneficial to different RF front-end modules, can avoid numerous advantages such as supplementary load loss that in radio frequency link, Head switches is introduced, and becomes gradually research object.Certainly, because the antenna placement space that terminal can provide is limited, when multiple antenna design brings benefit, must conscientiously process their radiation efficiency problem, to bring into play its optimum performance.
MIMO (Multiple Input Multiple Output) multi-antenna technology not only can improve the data transfer rate, also can improve the network coverage.Propelling along with the LTE industry, use the multi-antenna technology trend that is inevitable, also to terminal antenna, design has brought new challenge: the high-quality user of customer requirements miniaturization experiences on the one hand, and mimo system is also the same with traditional single antenna on the other hand, requires to have higher antenna radiation efficiency.
In multiaerial system, antenna amount is a lot, exists each other inevitable interference effect, and antenna efficiency is not often very high, and in multiaerial system, it is particularly urgent that the raising of antenna efficiency just seems thus.For single antenna, usually the factors such as surface wave loss of the conductor losses of the insertion loss of the impedance mismatching of antenna input, feeding network, antenna structure, dielectric loss, aerial radiation all can reduce the radiation efficiency of antenna, want to improve the efficiency of antenna, also with regard to equaling, will address top many loss problems.And affect in the factor of antenna efficiency at these, impedance matching is the most serious on the impact of antenna efficiency, if can carry out the work of coupling, other problem also can easily solve.And, for four antenna systems, the factor that affects antenna efficiency is not only just antenna self, with main antenna, the state of slave antenna becomes the key factor of main antenna efficiency equally such as matching status, antenna form etc.
Therefore, there is defect in prior art, needs to improve.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, and a kind of four antenna diversity systems that are applied to mobile phone are provided.
Technical scheme of the present invention is as follows:
A kind of four antenna diversity systems that are applied to mobile phone, wherein, comprise floor, main antenna unit and three slave antenna unit; Described main antenna unit and described three slave antenna unit are positioned at the same side on described floor.
Described four antenna diversity systems that are applied to mobile phone, wherein, described main antenna unit is the unipole antenna of coupling feed.
Described four antenna diversity systems that are applied to mobile phone, wherein, the unipole antenna of described coupling feed is for covering the antenna of 700-960Mhz and 1710-2690Mhz frequency range.
Described four antenna diversity systems that are applied to mobile phone, wherein, the unipole antenna of described coupling feed is comprised of two unipole antenna branches and coupling feed tab, described two unipole antenna branches are responsible for respectively different frequency ranges, and change the operating frequency of described main antenna unit by the length that changes described two unipole antenna branches.
Described four antenna diversity systems that are applied to mobile phone, wherein, described two unipole antenna branches and described coupling feed tab form the unipole antenna of a spill coupling feed.
Described four antenna diversity systems that are applied to mobile phone, wherein, the length of described coupling feed tab * wide is 20mm * 6.5mm; One side length of the first branch in described two unipole antenna branches is 35mm; One side width of the second branch in described two unipole antenna branches is 1.6mm; Described the second branch arranges and is connected with a short-term road; Be set to 0.5mm between described short-term road and described coupling feed tab.
Described four antenna diversity systems that are applied to mobile phone, wherein, described three slave antenna structures are identical, and slave antenna is comprised of coupling feed tab and one section loop antenna.
Described four antenna diversity systems that are applied to mobile phone, wherein, described three slave antennas cover the 1880-2690Mhz frequency range.
Described four antenna diversity systems that are applied to mobile phone, wherein, the length of described coupling feed tab * wide is 15.8mm * 8mm; The length of the bottom external of described loop antenna is 18mm, and the length of the inside, bottom of described loop antenna is 15.2mm; The gap length that described coupling feed tab is set and states between loop antenna is 0.2mm.
Adopt such scheme:
1, propose a kind of design that is applied to high efficiency four antenna systems of mobile phone, this design is comprised of main antenna and three slave antennas that cover 1880--2690Mhz that cover 700-960Mhz and 1710-2690Mhz.Main antenna adopts the unipole antenna pattern of coupling feed, and three slave antennas adopt the loop antenna pattern of coupling feed.This antenna system has realized high efficiency, has improved transmission rate, and has well solved the impact of impedance matching on antenna efficiency.
2, this invention has very little space hold demand and high efficiency, and high-isolation makes this antenna system have important reality and potentiality meaning in MIMO communication.The return loss of four ports all meets the mobile communication requirement of be less than-6dB in working band.Isolation substantially be less than-13dB in whole 1880-2690 frequency range between four ports, meet the designing requirement of antenna for mobile phone.
The accompanying drawing explanation
Fig. 1 is four antenna system configuration schematic diagrames of the present invention.
The stereogram that Fig. 2 is a kind of execution mode of four antenna of the present invention.
The structural representation that Fig. 3 is main antenna in the present invention.
Fig. 4 is one of them structural representation of slave antenna in the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment mono-
As Figure 1-Figure 4, in four antenna mobile phone systems, due to mobile phone self limited space, the space of leaving antenna for is very narrow and small, therefore, needs to solve the isolation between antenna, needs to solve to keep again two main problems of efficiency after miniature antenna.
The present invention seeks to realize like this:
1 slave antenna 301,302 and 303 has selected to isolate each other strong loop antenna form.
2 utilize the coupling feed to reduce the size of loop antenna.
3 main antennas 201 will cover the pattern that a plurality of frequency ranges have adopted unipole antenna
The layout of 4 four antennas has adopted the form of two tops and two sides, and this layout can strengthen isolation.
Particularly, with reference to Fig. 2, the present invention is mainly by floor 1 and slave antenna unit, 201, three of main antenna unit 301,302,303.Its main antenna unit 201 and three slave antenna unit 301,302,303 are positioned at the same side on floor 1, are provided with the dielectric material plate in floor 1, and it selects the FR4 dielectric-slab that dielectric constant is 4.4.
With reference to Fig. 3, adopt the unipole antenna of coupling feed in main antenna of the present invention unit 201 examples, it is comprised of two branches 212,213 and coupling feed tab 211, and two branches 212,213 are responsible for respectively different frequency ranges.Can change the operating frequency of antenna element by changing branch length.As shown in Figure 4, slave antenna unit 301,302,303 is comprised of coupling feed part 311 and one section little ring 312.
Embodiment bis-
On the basis of above-described embodiment, as Figure 1-Figure 4, provide a kind of four antenna diversity systems that are applied to mobile phone 101, wherein, comprise floor 1, main antenna unit 201 and three slave antenna unit 301,302,303; Described main antenna unit 201 and described three slave antenna unit 301,302,303 are positioned at the same side on described floor 1.
Preferably, described main antenna unit 201 is the unipole antenna of coupling feed.
On the basis of above-described embodiment, further, the unipole antenna of described coupling feed is for covering the antenna of 700-960Mhz and 1710-2690Mhz frequency range.
On the basis of above-described embodiment, further, as shown in Figure 3, the unipole antenna of described coupling feed is comprised of two unipole antenna branches 212,213 and coupling feed tab 211, described two unipole antenna branches 212,213 are responsible for respectively different frequency ranges, and change the operating frequency of described main antenna unit 201 by the length that changes described two unipole antenna branches 212,213.
On the basis of above-described embodiment, further, described two unipole antenna branches 212,213 and described coupling feed tab 211 form the unipole antenna of a spill coupling feed, as shown in Fig. 2 201.
On the basis of above-described embodiment, further, as shown in Figure 3, the length of described coupling feed tab 211 * wide is 20mm * 6.5mm; One side length of the first branch 212 in described two unipole antenna branches is 35mm; In figure, 219 part is 11mm, and 216 part is 24mm, and in the first branch 212 and figure, 220 parts are wholely set, and jointly to form first branch's 212, the first the narrowest width of branch 212 be 1.6mm; One side width of the second branch 213 in described two unipole antenna branches is 1.6mm; The length of second branch's 213 ledges 218 is 22.5mm; Described the second branch 213 arranges and is connected with a short-term road 214; Be set to 0.5mm between described short-term road 214 and described coupling feed tab 211; First branch's 212 opposite side width are 9.5mm; In the first branch 212, the width of 220 parts is 4mm; In the first branch 212, the longest edge of 220 parts and the first branch 212 is at a distance of 26.3mm; Second branch's 212 opposite side width are 3mm; Second branch's concave shape, the length on the middle inner base of its concave shape is filled for 49.5mm; The width of short-term road 214 is 0.5mm.
On the basis of above-described embodiment, further, described three slave antennas, 301,302,303 structures are identical, and slave antenna 301,302,303 is comprised of coupling feed tab 311 and one section loop antenna 312.
On the basis of above-described embodiment, further, described three slave antennas 301,302,303 cover the 1880-2690Mhz frequency range.
On the basis of above-described embodiment, further, the length 321 of described coupling feed tab 311 * wide 322 are 15.8mm * 8mm; The length 341 of the bottom external of described loop antenna 312 is 18mm, and the length 342 of the inside, bottom of described loop antenna 312 is 15.2mm; The gap length 333 that described coupling feed tab 311 is set and states between loop antenna 312 is 0.2mm.
On the basis of above-described embodiment, further, the dielectric-slab of the glass-epoxy copper-clad plate that the dielectric material plate also is set is dielectric constant in described floor 1 be 4.4.
Adopt such scheme:
Propose a kind of design that is applied to high efficiency four antenna systems of mobile phone, this design is comprised of main antenna and three slave antennas that cover 1880--2690Mhz that cover 700-960Mhz and 1710-2690Mhz.Main antenna adopts the unipole antenna pattern of coupling feed, and three slave antennas adopt the loop antenna pattern of coupling feed.This antenna system has realized high efficiency, has improved transmission rate, and has well solved the impact of impedance matching on antenna efficiency.
Technique scheme, have very little space hold demand and high efficiency, and high-isolation makes this antenna system have important reality and potentiality meaning in MIMO communication.The return loss of four ports all meets the mobile communication requirement of be less than-6dB in working band.Isolation substantially be less than-13dB in whole 1880-2690 frequency range between four ports, meet the designing requirement of antenna for mobile phone.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (9)
1. four antenna diversity systems that are applied to mobile phone, is characterized in that, comprises floor, main antenna unit and three slave antenna unit; Described main antenna unit and described three slave antenna unit are positioned at the same side on described floor.
2. four antenna diversity systems that are applied to mobile phone as claimed in claim 1, is characterized in that, described main antenna unit is the unipole antenna of coupling feed.
3. four antenna diversity systems that are applied to mobile phone as claimed in claim 2, is characterized in that, the unipole antenna of described coupling feed is for covering the antenna of 700-960Mhz and 1710-2690Mhz frequency range.
4. four antenna diversity systems that are applied to mobile phone as claimed in claim 2, it is characterized in that, the unipole antenna of described coupling feed is comprised of two unipole antenna branches and coupling feed tab, described two unipole antenna branches are responsible for respectively different frequency ranges, and change the operating frequency of described main antenna unit by the length that changes described two unipole antenna branches.
5. four antenna diversity systems that are applied to mobile phone as claimed in claim 4, is characterized in that, described two unipole antenna branches and described coupling feed tab form the unipole antenna of a spill coupling feed.
6. four antenna diversity systems that are applied to mobile phone as claimed in claim 5, is characterized in that, the length of described coupling feed tab * wide is 20mm * 6.5mm; One side length of the first branch in described two unipole antenna branches is 35mm; One side width of the second branch in described two unipole antenna branches is 1.6mm; Described the second branch arranges and is connected with a short-term road; Be set to 0.5mm between described short-term road and described coupling feed tab.
7. four antenna diversity systems that are applied to mobile phone as claimed in claim 1, is characterized in that, described three slave antenna structures are identical, and slave antenna is comprised of coupling feed tab and one section loop antenna.
8. four antenna diversity systems that are applied to mobile phone as claimed in claim 7, is characterized in that, described three slave antennas cover the 1880-2690Mhz frequency range.
9. four antenna diversity systems that are applied to mobile phone as claimed in claim 7, is characterized in that, the length of described coupling feed tab * wide is 15.8mm * 8mm; The length of the bottom external of described loop antenna is 18mm, and the length of the inside, bottom of described loop antenna is 15.2mm; The gap length that described coupling feed tab is set and states between loop antenna is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441365.3A CN103490176A (en) | 2013-09-17 | 2013-09-17 | Four-antenna diversity system applied to mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441365.3A CN103490176A (en) | 2013-09-17 | 2013-09-17 | Four-antenna diversity system applied to mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103490176A true CN103490176A (en) | 2014-01-01 |
Family
ID=49830229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310441365.3A Pending CN103490176A (en) | 2013-09-17 | 2013-09-17 | Four-antenna diversity system applied to mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103490176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155457A (en) * | 2017-12-27 | 2018-06-12 | 维沃移动通信有限公司 | A kind of mobile terminal of wireless communication |
| CN112751195A (en) * | 2019-10-31 | 2021-05-04 | 珠海市魅族科技有限公司 | Terminal antenna system and mobile terminal |
-
2013
- 2013-09-17 CN CN201310441365.3A patent/CN103490176A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155457A (en) * | 2017-12-27 | 2018-06-12 | 维沃移动通信有限公司 | A kind of mobile terminal of wireless communication |
| WO2019129043A1 (en) * | 2017-12-27 | 2019-07-04 | 维沃移动通信有限公司 | Mobile terminal having enhanced wireless communication performance |
| CN112751195A (en) * | 2019-10-31 | 2021-05-04 | 珠海市魅族科技有限公司 | Terminal antenna system and mobile terminal |
| CN112751195B (en) * | 2019-10-31 | 2024-06-14 | 珠海市魅族科技有限公司 | Terminal antenna system and mobile terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110137664B (en) | Double-antenna integrated broadband 5G MIMO terminal antenna | |
| US20200058992A1 (en) | Communications Terminal | |
| CN103155276B (en) | The wireless device of multi-band MIMO operation can be carried out | |
| CN105340127B (en) | Antenna efficiency is improved by the active demodulation of diversity antenna | |
| CN103858277B (en) | A kind of three poliarizing antennas | |
| WO2015109706A1 (en) | Antenna unit and terminal | |
| CN202759016U (en) | Tunable coupling feed antenna system | |
| CN104505589A (en) | LTE (Long Term Evolution) carrier aggregation antenna of portable equipment with full-metal shell | |
| CN103178331B (en) | Electrical tilt antenna and radio-frequency unit | |
| CN102104185A (en) | Multiple input multiple output (MIMO) array antenna | |
| CN204333256U (en) | There is the LTE carrier aggregation antenna of full metal jacket portable set | |
| CN104485512A (en) | LTE (Long Term Evolution) carrier aggregation antenna for portable type equipment with metal framework | |
| CN202058850U (en) | Antenna component and mobile terminal | |
| CN106252839A (en) | A kind of band becket reconfigurable LTE MIMO antenna for mobile phone | |
| CN106450752B (en) | MIMO antenna for realizing high isolation of smart phone | |
| US8102323B2 (en) | Hybrid dual dipole single slot antenna for MIMO communication systems | |
| CN104882677B (en) | Difference gap mimo antenna with high cmrr | |
| CN204348912U (en) | For having the LTE carrier aggregation antenna of metal framework portable set | |
| CN103531920A (en) | Four-antenna system for mobile phone working at 2300-2400 frequency band | |
| CN102856644B (en) | LTE (Long Term Evolution) MIMO (Multiple Input Multiple Output) mobile phone antenna structure controlled by switch | |
| CN209929488U (en) | Terminal antenna | |
| CN205509020U (en) | Communication terminal | |
| CN103490176A (en) | Four-antenna diversity system applied to mobile phone | |
| CN103579758A (en) | High isolation MIMO antenna | |
| Patnaik et al. | A multi-band 5G antenna for Smart phones operating at Sub-6 GHz frequencies |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140101 |