CN104092026A - Antenna transmission device, mobile terminal and antenna design method - Google Patents
Antenna transmission device, mobile terminal and antenna design method Download PDFInfo
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- CN104092026A CN104092026A CN201410306801.0A CN201410306801A CN104092026A CN 104092026 A CN104092026 A CN 104092026A CN 201410306801 A CN201410306801 A CN 201410306801A CN 104092026 A CN104092026 A CN 104092026A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 19
- 229910000859 α-Fe Inorganic materials 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 abstract description 40
- 238000004891 communication Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
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Abstract
The embodiment of the invention relates to the technical field of antenna transmission, in particular to an antenna transmission device, a mobile terminal and an antenna design method. The antenna transmission device comprises a sum-difference device, a first antenna unit and a second antenna unit, wherein the sum-difference device comprises a sum port and a difference port. When the sum port of the sum-difference device works, the first antenna unit connected with the sum-difference device and the second antenna unit connected with the sum-difference device carry out in-phase feed; when the difference port of the sum-difference device works, the first antenna unit connected with the sum-difference device and the second antenna unit connected with the sum-difference device carry out inversed-phase feed. According to the antenna transmission device, directional diagrams at the positions of the sum port and the difference port have the large difference, and therefore the antenna transmission rate can be increased.
Description
Technical field
The embodiment of the present invention relates to antenna transmission technique field, relates in particular to a kind of antenna transmission device and mobile terminal and antenna design method.
Background technology
Along with the development of mobile communication technology, many antennas have started to be applied to the various mobile radio terminals in multiple applications such as work and life.Along with the miniaturization of mobile terminal and the development of functional diversities, in very limited space, need the number of designing antenna also increasing.
In existing antenna transmission device, the directional diagram of different antennae has less difference, cause the transmission rate of the antenna transmission device being formed by multiple antennas not promote preferably with respect to individual antenna, the transmission rate that is existing antenna transmission device is lower, therefore the poor-performing of existing antenna transmission device.
Summary of the invention
The object of the invention is to propose a kind of antenna transmission device and mobile terminal and antenna design method, to improve the transmission rate of antenna transmission device.
On the one hand, the invention provides a kind of antenna transmission device, described ferrite coiling device comprises the first coiling unit, the second coiling unit and the 3rd coiling unit, wherein, one end of described the first coiling unit is and port, the other end ground connection of described the first coiling unit;
One end of described the second coiling unit is poor port, and the other end of described the second coiling unit is connected with described the first antenna element; One end of described the 3rd coiling unit is connected with described poor port, and the other end of the 3rd coiling unit is connected with described the second antenna element.
On the one hand, the invention provides a kind of mobile terminal again, comprise the antenna transmission device that any embodiment of the present invention provides.
On the other hand, the present invention also provides a kind of antenna design method, comprising:
Be the first antenna element and the second antenna element by antenna partition;
Described the first antenna element is connected with combiner respectively with described the second antenna element, make when described combiner with port working time, described the first antenna element and described the second antenna element homophase feed, when shown in when the poor port working of combiner, described the first antenna element and the anti-phase feed of described the second antenna element.
Antenna transmission device provided by the invention and mobile terminal and antenna design method, can effectively improve the transmission rate of antenna.In antenna transmission device of the present invention, the first antenna element is all connected with combiner with the second antenna element, and when described combiner with port working time, described the first antenna element and described the second antenna element homophase feed; In the time of the poor port working of described combiner, described the first antenna element and the anti-phase feed of described the second antenna element, what make described combiner has larger difference with port and the directional diagram of poor port, and then has improved the transmission rate of antenna transmission device.
Brief description of the drawings
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms a part for the embodiment of the present invention, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
The structural representation that Fig. 1 is the antenna transmission device that provides in first embodiment of the invention;
The directional diagram that Fig. 2 is the antenna transmission device that provides in first embodiment of the invention;
Fig. 3 for two of providing in first embodiment of the invention be apart the schematic diagram of the unipole antenna of 1/8～1/4 wavelength;
The directional diagram that Fig. 4 is the antenna transmission device corresponding with antenna element shown in Fig. 3 that provides in first embodiment of the invention;
Fig. 5 for two of providing in first embodiment of the invention be apart the schematic diagram of the IFA antenna of 1/4 wavelength;
The directional diagram that Fig. 6 is the antenna transmission device corresponding with antenna element shown in Fig. 5 that provides in first embodiment of the invention;
Fig. 7 adds the schematic diagram of the combiner of enamelled wire coiling for the ferrite providing in second embodiment of the invention;
The realization flow figure that Fig. 8 is the antenna design method that provides in fourth embodiment of the invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the embodiment of the present invention is carried out more in detail and complete explanation.Be understandable that, specific embodiment described herein is only for explaining the embodiment of the present invention, but not restriction to the embodiment of the present invention.It also should be noted that, for convenience of description, in accompanying drawing, only show the part relevant to the embodiment of the present invention but not full content.
The first embodiment:
The structural representation that Fig. 1 is the antenna transmission device that provides in first embodiment of the invention, as shown in Figure 1, this antenna transmission device comprises combiner 11, the first antenna element 12 and the second antenna element 13.
Comprise the first antenna element 12 and the second antenna element 13 at the multi-aerial radio communication system of mobile terminal, wherein, in described the first antenna element 12 He in described the second antenna element 13, include at least one antenna.For example, in the first antenna element 12 and the second antenna element 13, comprise respectively an antenna.General, in the first antenna element 12, in the quantity of antenna and the second antenna element 13, the quantity of antenna equates.
It should be noted that, in first embodiment of the invention, the type of antenna in the first antenna element 12 and the second antenna element 13 is not construed as limiting, as long as the antenna that can be applied to mobile terminal all can.And in described the first antenna element 12 type of the type of antenna and antenna in the second antenna element 13 can be identical also can be similar.
Wherein, described combiner 11 comprises and port one 11 and poor port one 12.Work when combiner 11 different with poor port one 12 with port one 11, in the time of the working with port one 11 of described combiner 11, the first antenna element 12 being connected with described combiner 11 and the second antenna element 13 homophase feeds that are connected with described combiner 11; In the time of the poor port working of described combiner, the first antenna element being connected with described combiner and the anti-phase feed of the second antenna element being connected with described combiner.There is larger difference in directional diagram when the first antenna element 12 and the second antenna element 13 homophase feed and when anti-phase feed.
The directional diagram that Fig. 2 is the antenna transmission device that provides in first embodiment of the invention, wherein, solid line part is the directional diagram during with port working, directional diagram when dotted portion is poor port working.As shown in Figure 2, and the directional diagram of the directional diagram of port and poor port have larger difference.There is larger difference due to described combiner 11 with directional diagrams port one 11 places and the directional diagram at poor port one 12 places, improved the transmission rate of antenna transmission device.In addition, in the embodiment of the present invention, the distance between the first antenna element 12 and the second antenna element 13 in 1 wavelength, makes the isolation between the first antenna element 12 and the second antenna element 13 can meet commercial communication demand greatly.
In the first antenna element and the second antenna element, comprise that respectively a monopole antenna is as example.Fig. 3 for two of providing in first embodiment of the invention be apart the schematic diagram of the unipole antenna of 1/8～1/4 wavelength, the directional diagram that Fig. 4 is the antenna transmission device corresponding with antenna element shown in Fig. 3 that provides in first embodiment of the invention.As shown in Figure 3, the arragement direction of unipole antenna is vertical with the direction shown in y axle, and is 1/8～1/4 wavelength apart between unipole antenna.In the directional diagram shown in Fig. 4, when solid line represents with port working, when two unipole antenna homophase feeds, the directional diagram of xoy face; When dotted line represents poor port working, when two anti-phase feeds of unipole antenna, the directional diagram of xoy face.As shown in Figure 4, directional diagram shown in solid line and the poor port shown in directional diagram port and dotted line is completely different, and, the central point of directional diagram shown in dotted line is larger from the distance at main lobe edge with respect to the central point of directional diagram shown in solid line from the distance at main lobe edge, gain when two anti-phase feeds of unipole antenna are with respect to this two unipole antenna homophase feeds is higher, therefore when antenna transmitting device is in feeble field situation, the work performance of poor port is better.
In the first antenna element and the second antenna element, comprise that respectively an IFA antenna (Inverted ?F antenna) is as example.Fig. 5 for two of providing in first embodiment of the invention be apart the schematic diagram of the IFA antenna of 1/4 wavelength, the directional diagram that Fig. 6 is the antenna transmission device corresponding with antenna element shown in Fig. 5 that provides in first embodiment of the invention.As shown in Figure 5, the arragement direction of IFA antenna is parallel with the direction shown in y axle, and is apart 1/4 wavelength between these two IFA antennas.In the directional diagram shown in Fig. 6, when solid line represents with port working, the directional diagram of yoz face; When dotted line represents poor port working, the directional diagram of yoz face.As shown in Figure 6, directional diagram shown in solid line and the poor port shown in directional diagram port and dotted line is completely different, and poor directional diagram with directional diagram in the lower direction of gain there is higher gain.Therefore in feeble field situation, reasonably selection and port or poor port working can make described antenna transmission device have good efficiency of transmission.
It should be noted that, described combiner is ferrite coiling device or inductance capacitance device.For example, because the antenna transmission device providing in first embodiment of the invention (need be arranged at mobile terminal, smart mobile phone) in, therefore combiner is required to be small size device in antenna transmission device, therefore, described combiner can adopt ferrite coiling device or low-loss capacitor and inductor device etc.
The second embodiment:
Fig. 7 adds the schematic diagram of the combiner of enamelled wire coiling for the ferrite providing in second embodiment of the invention, as shown in Figure 7, in the time that described combiner is ferrite coiling device, wherein, described ferrite coiling device comprises the first coiling unit 201, the second coiling unit 202 and the 3rd coiling unit 203, wherein, the first end of described the first coiling unit 201 is and port, the second end ground connection of described the first coiling unit 201; The first end of described the second coiling unit 202 is poor port, and the second end of described the second coiling unit 202 is connected with described the first antenna element; The first end of described the 3rd coiling unit 203 is connected with described poor port, and the second end of the 3rd coiling unit 203 is connected with described the second antenna element.
When inputting with port 211 of combiner,, in the time working with port 211, the first antenna element 22 and the second antenna element 23 same-phases are exported; The port 212 of being on duty is inputted, when the port 212 of being on duty is worked, and the first antenna element 22 and the second antenna element 23 antiphase outputs.The combiner that adds enamelled wire coiling for ferrite is as shown in Figure 7 small size, and it can be arranged at the inside of mobile terminal, and then can improve the transmission rate of mobile terminal.
In the antenna transmission device providing in second embodiment of the invention, the directional diagram with port and poor port of combiner has larger difference, and the isolation between the first antenna element and the second antenna element can meet commercial communication needs, therefore the antenna transmission device that second embodiment of the invention provides has higher transmission rate.
The 3rd embodiment:
Third embodiment of the invention also provides a kind of mobile terminal, described mobile terminal comprises the antenna transmission device that any embodiment of the present invention provides, make the directional diagram of antenna transmission device in mobile terminal there is larger difference, thereby improve the transmission rate of this mobile terminal.
The 4th embodiment:
The realization flow figure that Fig. 8 is the antenna design method that provides in fourth embodiment of the invention, the method can be carried out by the staff that antenna is arranged, and this realization flow comprises:
Step 41, be the first antenna element and the second antenna element by antenna partition.
The antenna partition that mobile terminal need to be arranged is the first antenna element and the second antenna element, for example, in the time that mobile terminal need to arrange two antennas, has respectively an antenna in the first antenna element and the second antenna element; In the time that mobile terminal need to arrange four antennas, in the first antenna element and the second antenna element, there are respectively two antennas etc.General, in mobile terminal, the quantity of antenna is even number, and antenna is evenly divided into the first antenna element and the second antenna element.
Wherein, in described the first antenna element He in described the second antenna element, all at least comprise an antenna, be in antenna transmission device, at least to comprise two antennas, therefore antenna transmission device is multi-antenna transmitting conveying device in second embodiment of the invention, to improve the transmission rate of antenna.
Step 42, described the first antenna element is connected with combiner respectively with described the second antenna element, make when combiner with port working time, described the first antenna element and described the second antenna element homophase feed; In the time of the poor port working of combiner, described the first antenna element and the anti-phase feed of described the second antenna element.
By each antenna in the first antenna element all with being connected with port of combiner, and each antenna in the second antenna element is all connected with the poor port of combiner, make when combiner with port working time, described the first antenna element and described the second antenna element homophase feed; In the time of the poor port working of combiner, described the first antenna element and the anti-phase feed of described the second antenna element.And then make with the directional diagram of port completely differently from the directional diagram of poor port, and then improve the transmission rate of antenna transmission device.
Wherein, described combiner is ferrite coiling device or inductance capacitance device.In the time of the antenna of design mobile terminal, can not directly use and there is the circulator of large-size or the device of other branch's parameter designing, and need the undersized combiner that can only adopt ferrite coiling device or make with low-loss inductance capacitance device.
Wherein, in the time that described combiner is ferrite coiling device, described ferrite coiling device can comprise the first coiling unit, the second coiling unit and the 3rd coiling unit, wherein, the first end of described the first coiling unit is and port, the second end ground connection of described the first coiling unit; The first end of described the second coiling unit is poor port; The first end of described the 3rd coiling unit is connected with described poor port; Now, described described the first antenna element is connected with combiner respectively with described the second antenna element, comprise: described the first antenna element is connected with the second end of described the second coiling unit, and described the second antenna element is connected with the second end of described the 3rd coiling unit.
Along with the miniaturization of mobile terminal and the development of functional diversities, the antenna that signal post needs will inevitably be more than 2.In the antenna design method providing in the embodiment of the present invention, the first antenna element and the second antenna element can be also the subarray being made up of multiple antennas, and the gain of the subarray of multiple antenna formation is higher, and in feeble field situation, performance better.
To sum up, the antenna design method providing in fourth embodiment of the invention can make the antenna pattern between the first antenna element and the second antenna element have larger difference in limited space, and the isolation between antenna element meets commercial communication demand, therefore can improve the antenna transmission speed of mobile terminal.In addition, this antenna design method can also with port direction figure fixation case under, poor by changing the current feed phase of adjacent two antenna elements of poor port, with adaptively changing antenna pattern.To sum up, this antenna design method can be good at meeting the demand of MIMO (Multi-input Multi-output, multiple-input and multiple-output) communication.
The above is only the preferred embodiment of the embodiment of the present invention, is not limited to the embodiment of the present invention, and to those skilled in the art, the embodiment of the present invention can have various changes and variation.Any amendment of doing within all spirit in the embodiment of the present invention and principle, be equal to replacement, improvement etc., within all should being included in the protection range of the embodiment of the present invention.
Claims (9)
1. an antenna transmission device, is characterized in that, comprises combiner, the first antenna element and the second antenna element, wherein,
Described combiner comprises and port and poor port;
When described combiner with port working time, the first antenna element being connected with described combiner and the second antenna element homophase feed being connected with described combiner;
In the time of the poor port working of described combiner, the first antenna element being connected with described combiner and the anti-phase feed of the second antenna element being connected with described combiner.
2. device according to claim 1, is characterized in that,
In described the first antenna element He in described the second antenna element, include at least one antenna.
3. device according to claim 1, is characterized in that,
Described combiner is ferrite coiling device or inductance capacitance device.
4. device according to claim 3, is characterized in that, in the time that described combiner is ferrite coiling device, wherein,
Described ferrite coiling device comprises the first coiling unit, the second coiling unit and the 3rd coiling unit, and wherein, the first end of described the first coiling unit is and port, the second end ground connection of described the first coiling unit; The first end of described the second coiling unit is poor port, and the second end of described the second coiling unit is connected with described the first antenna element; The first end of described the 3rd coiling unit is connected with described poor port, and the second end of the 3rd coiling unit is connected with described the second antenna element.
5. a mobile terminal, is characterized in that, comprises the antenna transmission device as described in claim 1-4 any one.
6. an antenna design method, is characterized in that, comprising:
Be the first antenna element and the second antenna element by antenna partition;
Described the first antenna element is connected with combiner respectively with described the second antenna element, make when described combiner with port working time, described the first antenna element and described the second antenna element homophase feed, when shown in when the poor port working of combiner, described the first antenna element and the anti-phase feed of described the second antenna element.
7. method according to claim 6, is characterized in that,
In described the first antenna element He in described the second antenna element, all at least comprise an antenna.
8. method according to claim 6, is characterized in that,
Described combiner is ferrite coiling device or inductance capacitance device.
9. method according to claim 6, is characterized in that,
In the time that described combiner is ferrite coiling device, described ferrite coiling device comprises the first coiling unit, the second coiling unit and the 3rd coiling unit, wherein, the first end of described the first coiling unit is and port, the second end ground connection of described the first coiling unit; The first end of described the second coiling unit is poor port; The first end of described the 3rd coiling unit is connected with described poor port;
Described described the first antenna element is connected with combiner respectively with described the second antenna element, comprises:
Described the first antenna element is connected with the second end of described the second coiling unit, and described the second antenna element is connected with the second end of described the 3rd coiling unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410306801.0A CN104092026B (en) | 2014-06-30 | 2014-06-30 | A kind of antenna transmission device and mobile terminal and antenna design method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410306801.0A CN104092026B (en) | 2014-06-30 | 2014-06-30 | A kind of antenna transmission device and mobile terminal and antenna design method |
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| CN104092026A true CN104092026A (en) | 2014-10-08 |
| CN104092026B CN104092026B (en) | 2017-03-29 |
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Cited By (5)
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| CN110429379A (en) * | 2019-08-12 | 2019-11-08 | 上海交通大学 | With symmetrical and difference beam gap coupling short paster antenna |
| CN110752439A (en) * | 2019-11-15 | 2020-02-04 | Oppo广东移动通信有限公司 | Antenna module and terminal |
| CN110797642A (en) * | 2019-11-15 | 2020-02-14 | Oppo广东移动通信有限公司 | Antenna module and terminal |
| CN110829025A (en) * | 2019-11-15 | 2020-02-21 | Oppo广东移动通信有限公司 | Antenna module, terminal and method for adjusting antenna isolation |
| CN110829023A (en) * | 2019-11-15 | 2020-02-21 | Oppo广东移动通信有限公司 | Antenna module and terminal |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110429379A (en) * | 2019-08-12 | 2019-11-08 | 上海交通大学 | With symmetrical and difference beam gap coupling short paster antenna |
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| CN110829025A (en) * | 2019-11-15 | 2020-02-21 | Oppo广东移动通信有限公司 | Antenna module, terminal and method for adjusting antenna isolation |
| CN110829023A (en) * | 2019-11-15 | 2020-02-21 | Oppo广东移动通信有限公司 | Antenna module and terminal |
| CN110829025B (en) * | 2019-11-15 | 2021-11-12 | Oppo广东移动通信有限公司 | Antenna module, terminal and method for adjusting antenna isolation |
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| Publication number | Publication date |
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| CN104092026B (en) | 2017-03-29 |
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