CN202363576U - Antenna structure of mobile communication terminal - Google Patents
Antenna structure of mobile communication terminal Download PDFInfo
- Publication number
- CN202363576U CN202363576U CN2011204972837U CN201120497283U CN202363576U CN 202363576 U CN202363576 U CN 202363576U CN 2011204972837 U CN2011204972837 U CN 2011204972837U CN 201120497283 U CN201120497283 U CN 201120497283U CN 202363576 U CN202363576 U CN 202363576U
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- China
- Prior art keywords
- antenna
- printed circuit
- circuit board
- mobile communication
- pcb
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Abstract
The utility model discloses an antenna structure of a mobile communication terminal. The antenna structure comprises a printed circuit board and a double antenna arranged on the printed circuit board, wherein a main antenna of the double antenna is arranged at one end of the printed circuit board, and an auxiliary antenna is arranged in the middle of the printed circuit board. The position of the feeding point of the auxiliary antenna is changed so that current distribution of the auxiliary antenna on the printed circuit broad is changed, and therefore the directional diagram of the auxiliary antenna is reversed, the relativity between the main antenna and the auxiliary antenna is reduced, and the data throughout is effectively improved.
Description
[technical field]
The utility model relates to mobile communication technology, especially relates to a kind of antenna structure of mobile communication terminal.
[background technology]
The MIMO multi-antenna technology is one of core technology of LTE (Long Term Evolution, 3G is to the transitional technology of 4G), can improve the data throughout of system through the layout of many antennas.
The MIMO double antenna has defined low-frequency range 700MHZ and the multiplexing original GSM850/900 frequency range of meeting, and in order to improve the efficient of low-frequency antenna, the traditional antenna layout need be with the relative two ends of antenna arrangement at mobile communication terminal (for example mobile phone) PCB.
Traditional this antenna arrangement mode makes that the isolation between the antenna of two ends is relatively poor, and relative coefficient is high.
[utility model content]
Based on this, be necessary to provide a kind of antenna structure that can improve the mobile communication terminal of isolation.
A kind of antenna structure of mobile communication terminal comprises printed circuit board (PCB) and is located at the double antenna on the said printed circuit board (PCB) that the main antenna in the said double antenna is located at an end of said printed circuit board (PCB), and slave antenna is located at the middle part of said printed circuit board (PCB).
Preferably, the feedback of said main antenna point is positioned at the end of said main antenna away from said slave antenna.
Preferably, the feedback of said slave antenna point is positioned at the middle part of said slave antenna.
Preferably, said double antenna is planar printed antenna.
Preferably, said double antenna is helical antenna.
Preferably, the global shape of said double antenna is a rectangle.
Preferably, the length direction of said main antenna extends along the Width of printed circuit board (PCB), and the length direction of said slave antenna extends along the length direction of printed circuit board (PCB).
Preferably, said slave antenna is positioned at the position between 1/3rd length to three on the printed circuit board (PCB)/two length.
Preferably, the axis of the Width of said slave antenna overlaps with the axis of printed circuit board width direction.
The change of slave antenna feedback point position changes the CURRENT DISTRIBUTION of slave antenna on printed circuit board (PCB), thereby the directional diagram of slave antenna is reversed, and reduces the correlation between main antenna and the slave antenna, has effectively improved data throughout.
[description of drawings]
Fig. 1 is the antenna structure view of the mobile communication terminal of an embodiment;
Fig. 2 is an antenna class apple shape directional diagram;
Fig. 3 is the generalized section of the directional diagram of main antenna and slave antenna among Fig. 1 embodiment.
[embodiment]
As shown in Figure 1, be the antenna structure of the mobile communication terminal of an embodiment.This antenna structure comprises printed circuit board (PCB) 10 and is located at the double antenna 20 on the printed circuit board (PCB) 10.Wherein double antenna 20 comprises main antenna 22 and slave antenna 24, and main antenna 22 is located at an end of printed circuit board (PCB) 10, and slave antenna 24 is located at the middle part of printed circuit board (PCB) 10.
In the present embodiment, main antenna 22 is planar printed antenna with slave antenna 24, and is preferably the helical antenna that external overall is shaped as rectangle.Certainly, in other embodiments, also can select the antenna of other shapes for use.
In the present embodiment, be shaped as the helical antenna of rectangle for external overall, be located at the antenna of printed circuit board (PCB) 10 1 ends, promptly the length direction of main antenna 22 extends along the Width of printed circuit board (PCB) 10.Be located at the antenna at printed circuit board (PCB) 10 middle parts, promptly the length direction of slave antenna 24 extends along the length direction of printed circuit board (PCB) 10.
The slave antenna 24 at printed circuit board (PCB) 10 middle parts specifically is the position that is positioned between 1/3rd length to three on the printed circuit board (PCB) 10/two length, promptly among the figure between two dotted lines.
Preferably, the axis of the Width of slave antenna 24 overlaps with the axis of printed circuit board (PCB) 10 Widths, and promptly slave antenna 24 is positioned at the center of printed circuit board (PCB) 10.
Among Fig. 1, the feedback of main antenna 22 point is positioned at the end of main antenna 22 away from slave antenna 24, and the feedback point of slave antenna 24 is positioned at the middle part of slave antenna 24.Based on the change of the feedback point position of slave antenna 24 with respect to the traditional double antenna arrangement; The CURRENT DISTRIBUTION of slave antenna 24 on printed circuit board (PCB) 10 changes (current direction of main antenna 22 and slave antenna 24 is shown in arrow among Fig. 1), thereby the directional diagram (with reference to figure 2) of 24 types of apple shapes of slave antenna is reversed.Specifically be, the directional diagram of main antenna 22 is similar with tradition, and the directional diagram of slave antenna 24 then is on the basis of main antenna 24 directional diagrams, and Z axle and X axle are exchanged, and has realized reversing of directional diagram.
With reference to figure 3, main antenna 22 directional diagrams are parallel to the profile quadrature on x-y plane along profile that is parallel to the x-y plane and slave antenna 24 directional diagrams edge, thereby the correlation between main antenna 22 and the slave antenna 24 is lower.
When slave antenna 24 moves between 1/3rd length to three/two length of printed circuit board (PCB) 10; Correlation between main antenna 22 and the slave antenna 24 changes thereupon; When the feedback point was positioned at printed circuit board (PCB) 10 centers, the correlation between main antenna 22 and the slave antenna 24 was minimum.
In other embodiments; Difform antenna; For example the antenna of non-plane print antenna, non-helical antenna and other shape such as horn antenna, logarithm periodic antenna, Yagi antenna etc. also can be arranged main antenna and slave antenna with reference to the foregoing description, make the directional diagram lap between main antenna and the slave antenna minimum; Reduce correlation, thereby improve the throughput of data.
The above embodiment has only expressed several kinds of execution modes of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be as the criterion with accompanying claims.
Claims (9)
1. the antenna structure of a mobile communication terminal; Comprise printed circuit board (PCB) and be located at the double antenna on the said printed circuit board (PCB); It is characterized in that the main antenna in the said double antenna is located at an end of said printed circuit board (PCB), slave antenna is located at the middle part of said printed circuit board (PCB).
2. the antenna structure of mobile communication terminal as claimed in claim 1 is characterized in that, the feedback point of said main antenna is positioned at the end of said main antenna away from said slave antenna.
3. according to claim 1 or claim 2 the antenna structure of mobile communication terminal is characterized in that the feedback point of said slave antenna is positioned at the middle part of said slave antenna.
4. the antenna structure of mobile communication terminal as claimed in claim 1 is characterized in that, said double antenna is planar printed antenna.
5. the antenna structure of mobile communication terminal as claimed in claim 4 is characterized in that, said double antenna is helical antenna.
6. the antenna structure of mobile communication terminal as claimed in claim 5 is characterized in that, the global shape of said double antenna is a rectangle.
7. the antenna structure of mobile communication terminal as claimed in claim 6 is characterized in that, the length direction of said main antenna extends along the Width of printed circuit board (PCB), and the length direction of said slave antenna extends along the length direction of printed circuit board (PCB).
8. the antenna structure of mobile communication terminal as claimed in claim 7 is characterized in that, said slave antenna is positioned at the position between 1/3rd length to three on the printed circuit board (PCB)/two length.
9. the antenna structure of mobile communication terminal as claimed in claim 7 is characterized in that, the axis of the Width of said slave antenna overlaps with the axis of printed circuit board width direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204972837U CN202363576U (en) | 2011-12-02 | 2011-12-02 | Antenna structure of mobile communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204972837U CN202363576U (en) | 2011-12-02 | 2011-12-02 | Antenna structure of mobile communication terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363576U true CN202363576U (en) | 2012-08-01 |
Family
ID=46574737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204972837U Expired - Lifetime CN202363576U (en) | 2011-12-02 | 2011-12-02 | Antenna structure of mobile communication terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202363576U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300232A (en) * | 2013-07-16 | 2015-01-21 | 深圳富泰宏精密工业有限公司 | Wireless communication device |
| CN106654586A (en) * | 2016-12-30 | 2017-05-10 | 中国人民解放军军械工程学院 | Position subtle change-annular area subtle change antenna |
| CN106941211A (en) * | 2017-02-24 | 2017-07-11 | Pc-Tel公司 | Many feed antennas radiating elements, MIMO multiaerial systems and preparation method thereof |
-
2011
- 2011-12-02 CN CN2011204972837U patent/CN202363576U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300232A (en) * | 2013-07-16 | 2015-01-21 | 深圳富泰宏精密工业有限公司 | Wireless communication device |
| CN106654586A (en) * | 2016-12-30 | 2017-05-10 | 中国人民解放军军械工程学院 | Position subtle change-annular area subtle change antenna |
| CN106941211A (en) * | 2017-02-24 | 2017-07-11 | Pc-Tel公司 | Many feed antennas radiating elements, MIMO multiaerial systems and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
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| CX01 | Expiry of patent term |