CN202957340U - Antenna device and wireless communication device - Google Patents
Antenna device and wireless communication device Download PDFInfo
- Publication number
- CN202957340U CN202957340U CN2012206725650U CN201220672565U CN202957340U CN 202957340 U CN202957340 U CN 202957340U CN 2012206725650 U CN2012206725650 U CN 2012206725650U CN 201220672565 U CN201220672565 U CN 201220672565U CN 202957340 U CN202957340 U CN 202957340U
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- China
- Prior art keywords
- antenna
- mounting panel
- reflecting plates
- antenna mounting
- stationary fixture
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- Y02B60/50—
Abstract
The utility model discloses an antenna device and a wireless communication device. Reflecting plates are rotatably arranged on the two sides of a directional antenna (such as a Yagi antenna) of the antenna device and opened to form a predetermined included angle on the two sides of the directional antenna, so that power decrease of the directional antenna at a key angle can be improved, and the front-to-rear ratio of the directional antenna is improved; and after the two reflecting plates are closed, space volume occupied by the antenna device during transportation and storage can be saved.
Description
Technical field
The utility model relates to antenna technology, particularly can optimize directional diagram and promote a kind of antenna assembly of front and back ratio and a kind of radio communication device of applying this antenna assembly.
Background technology
Along with the development of wireless communication technology, the transmission rate of cordless communication network significantly promotes, and the services such as data acquisition, video monitoring are used widely in fields such as electric power, water conservancy, agriculturals, and have obtained good society and economic benefit.
For the each side demand that the Seamless Network of realizing specific region covers and takes into account the network optimization, the sector networking is a kind of top-priority networking mode.As the key of sector networking, the directional antenna of selecting need to meet some crucial index requests, especially at directional diagram and front and back, than aspects such as (front-to-rear ratio), need to consider emphatically.
Specifically:
In order to reduce the interference of sector-edge, certain requirement need to be proposed the directional diagram of directional antenna, to meet the demand of sector networking on some critical angle, for example, power on ° direction of horizontal plane ± 60 descends and maintains the 10dB left and right, and the power on ° direction of horizontal plane ± 90 descends and maintains the 20dB left and right;
And, for some high-order modulating (such as 64QAM), need at least to surpass between homogenous frequency signal the isolation of 25dB, now, the front and back of directional antenna are than just being greater than 25dB.
But the sector networking for some low frequency (scope covers 200MHz～300MHz), the directional antenna used is generally Yagi antenna (also referred to as " Directional Antenna " or " Uda antenna "), but the directional diagram of at present common Yagi antenna is difficult to meet the sector networking, in critical angle, the requirement of power decline and its front and back ratio generally also is merely able to reach the 15dB left and right.
Visible, Yagi antenna is not enough and front and back are higher than not because the power in critical angle descends, thereby can't meet the directed requirement of sector networking.
The utility model content
In view of this, the utility model provides and can optimize directional diagram and promote a kind of antenna assembly of front and back ratio and a kind of radio communication device of applying this antenna assembly.
A kind of antenna assembly that the utility model provides, comprise the directional antenna of an antenna mounting panel of vertically placing, a horizontal positioned and the reflecting plates of two vertical placements, wherein:
The end that the root of described directional antenna is fixed in described antenna mounting panel, described directional antenna is suspended at the front portion of described antenna mounting panel;
Two described reflecting plates rotate and are installed in described antenna mounting panel in the both sides of described directional antenna respectively.
Two described reflecting plates and described antenna mounting panel are realized described rotation installing in hinged mode.
Two described reflecting plates and described antenna mounting panel are realized described hinged by hinge.
Two described reflecting plates are maintained at the angle of predetermined angular in the front portion of described antenna mounting panel.
Further comprise stationary fixture, two described reflecting plates that are angle in the front portion of described antenna mounting panel are remained on described predetermined angular by described stationary fixture.
Described stationary fixture is two, and in top and the bottom of described antenna mounting panel, two described reflecting plates is fixed on to described predetermined angular respectively.
Each described stationary fixture includes a base portion and lays respectively at the both sides of described base portion and form two ends of bending with respect to described base portion, and is formed with described predetermined angular by described bending between two described ends; And, the described base portion of one of them described stationary fixture is fixed in the top edge that the top edge of described antenna mounting panel, two described ends are individually fixed in two described reflecting plates, and the described base portion of another described stationary fixture is fixed in the place, base that the place, base of described antenna mounting panel, two described ends are individually fixed in two described reflecting plates.
Alternatively, described directional antenna is Yagi antenna.
A kind of radio communication device that the utility model provides, comprise antenna assembly as above.
As can be seen here, the utility model for example, rotates and is equiped with reflecting plate in the both sides of the directional antenna (Yagi antenna) of antenna assembly, when two reflecting plates that rotate installing open and after the both sides of directional antenna form the angle of predetermined angular, two formed angles of reflecting plate can improve directional antenna and descend and promote the front and back ratio of directional antenna at the power of critical angle; And, after two reflecting plate closures of rotating installing, can save antenna assembly in transportation and shared spatial volume while storing.
The accompanying drawing explanation
The structural representation that Fig. 1 a and Fig. 1 b are the antenna assembly in the utility model embodiment;
Fig. 2 is the schematic diagram of reflecting plate when folding that the antenna assembly in the utility model embodiment has;
Fig. 3 is that antenna assembly in the utility model embodiment and the directional diagram of existing antenna assembly are compared schematic diagram;
Fig. 4 a and Fig. 4 b are respectively A place in Fig. 1 a and the local enlarged diagram at B place.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Referring to Fig. 1 a and Fig. 1 b and Fig. 2, the antenna assembly that the present embodiment provides comprises Yagi antenna 20 and two reflecting plates 30 of vertically placing of an antenna mounting panel 10 of vertically placing, a horizontal positioned, wherein:
The end 20b that the root 20a of Yagi antenna 20 is fixed in antenna mounting panel 10, Yagi antenna 20 is suspended at the front portion of antenna mounting panel 10;
Two reflecting plates 30 rotate and are installed in antenna mounting panel 10 in the both sides of Yagi antenna 20 respectively; Wherein, in the present embodiment, two reflecting plates 30 can adopt hinged mode to realize rotating installing with antenna mounting panel 10, and, the present embodiment is only to take two reflecting plates 30 to realize that by hinge hinged is example with antenna mounting panel 10, but in actual applications, those skilled in the art can expect realizing the replacement scheme of other hinged modes and the installing of the realized rotation except hinged, and this paper will not enumerate this.
As above visible, the utility model rotates and is equiped with reflecting plate 30 in the both sides of Yagi antenna 20, therefore, two reflecting plates 30 can open and form in the both sides of Yagi antenna 20 angle of predetermined angular when Yagi antenna 20 is used, and can betransported at Yagi antenna 20, closure while storing.
When two reflecting plates 30 that rotate installing open and after the both sides of Yagi antenna 20 form the angle of predetermined angular, utilize two formed angles of reflecting plate 30 can improve Yagi antenna 20 and descend at the power of critical angle, to meet the requirement that the sector networking descends to power in critical angle the interference that reduces sector-edge; And, two reflecting plates 30 can be realized inhibition to a certain degree to the back lobe of Yagi antenna 20 at the root 20a of Yagi antenna 20, therefore, utilize the inhibition of 30 pairs of back lobes of two reflecting plates can also promote the front and back ratio of Yagi antenna, with meet the sector networking to the requirement of front and back ratio, and be applicable to the transfer of data that the sector networking adopts high-order modulating.
Provided the directional diagram of Yagi antenna 20 in the 230MHz frequency range in Fig. 3, in the directional diagram shown in Fig. 3, dashed curve means that the power decline of Yagi antenna 20 when not installing reflecting plate 30 changes, and block curve means that the power decline of Yagi antenna 20 when being equiped with reflecting plate 30 changes.Dashed curve in Fig. 3 and block curve comparison can be found out: than the situation of not installing reflecting plate 30, when being equiped with reflecting plate 30, Yagi antenna 20 descends more obvious at the power of each angle; Than the situation of not installing reflecting plate 30, when being equiped with reflecting plate 30, near the gain of Yagi antenna 20 ± 180 ° is lower, can conclude that thus Yagi antenna 20 front and back now are than higher.
And after two reflecting plate 30 closures of rotating installing, the size of antenna assembly on its Width can be contracted to the width that is similar to antenna mounting panel 10 or be similar to the thickness sum of two reflecting plates 30, to save antenna assembly shared spatial volume on its Width.
In addition, still referring to Fig. 1 a and Fig. 1 b and Fig. 2, in order to ensure making two formed angles of reflecting plate 30 be stabilized in aforesaid predetermined angular when antenna assembly is used, this antenna assembly may further include stationary fixture 40, correspondingly, two reflecting plates 30 that are angle in the front portion of antenna mounting panel 10 fixture 40 that can be fixed is fixed on aforesaid predetermined angular.
In the present embodiment, to take two stationary fixtures 40 in top and the bottom of antenna mounting panel 10, two reflecting plates 30 to be fixed on to aforementioned predetermined angular as example respectively, and, the present embodiment is also optimized structure for stationary fixture 40 provides a kind of, please in referring to Fig. 1 a and Fig. 1 b and Fig. 2 again in conjunction with Fig. 4 a and Fig. 4 b:
Each stationary fixture 40 includes a base portion 40a and lays respectively at the both sides of base portion 40a and form two end 40b of bending with respect to base portion 40a, and is formed with aforementioned predetermined angular by bending between two end 40b;
For one of them stationary fixture 40 at the top that is positioned at antenna mounting panel 10 as shown in Fig. 4 a, its base portion 40a is fixed in the top edge that the top edge of antenna mounting panel 10, two end 40b are individually fixed in two reflecting plates 30;
For another stationary fixture 40 of the bottom that is positioned at antenna mounting panel 10 as shown in Figure 4 b, its base portion 40a is fixed in the place, base that the place, base of antenna mounting panel 10, two end 40b are individually fixed in two reflecting plates 30.
Thereby, by stationary fixture 40, in top and the bottom of antenna mounting panel 10, two reflecting plates, 30 enforcement angles to be fixed, two formed angles of reflecting plate 30 can be stabilized in aforesaid predetermined angular.
Certainly, in actual applications, stationary fixture 40 is not limited at the top of antenna mounting panel 10 and bottom enforcement angle and fixes, correspondingly, for at diverse location, implementing the fixing situation of angle, the concrete structure of stationary fixture 40 also needs corresponding adjustment, and this paper will not enumerate this.
It is more than the detailed description to the antenna assembly in the present embodiment.Except above-mentioned antenna assembly, the present embodiment also provides a kind of radio communication device of this antenna assembly of application, and this radio communication device comprises antenna assembly as above.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of the utility model protection.
Claims (9)
1. an antenna assembly, is characterized in that, comprises directional antenna and two reflecting plates of vertically placing of an antenna mounting panel of vertically placing, a horizontal positioned, wherein:
The end that the root of described directional antenna is fixed in described antenna mounting panel, described directional antenna is suspended at the front portion of described antenna mounting panel;
Two described reflecting plates rotate and are installed in described antenna mounting panel in the both sides of described directional antenna respectively.
2. antenna assembly according to claim 1, is characterized in that, two described reflecting plates and described antenna mounting panel are realized described rotation installing in hinged mode.
3. antenna assembly according to claim 2, is characterized in that, two described reflecting plates and described antenna mounting panel are realized described hinged by hinge.
4. antenna assembly according to claim 1, is characterized in that, two described reflecting plates are maintained at the angle of predetermined angular in the front portion of described antenna mounting panel.
5. antenna assembly according to claim 4, is characterized in that, further comprises stationary fixture, and two described reflecting plates that are angle in the front portion of described antenna mounting panel are remained on described predetermined angular by described stationary fixture.
6. antenna assembly according to claim 5, is characterized in that, described stationary fixture is two, and in top and the bottom of described antenna mounting panel, two described reflecting plates are fixed on to described predetermined angular respectively.
7. antenna assembly according to claim 6, it is characterized in that, each described stationary fixture includes a base portion and lays respectively at the both sides of described base portion and form two ends of bending with respect to described base portion, and is formed with described predetermined angular by described bending between two described ends; And, the described base portion of one of them described stationary fixture is fixed in the top edge that the top edge of described antenna mounting panel, two described ends are individually fixed in two described reflecting plates, and the described base portion of another described stationary fixture is fixed in the place, base that the place, base of described antenna mounting panel, two described ends are individually fixed in two described reflecting plates.
8. antenna assembly according to claim 1, is characterized in that, described directional antenna is Yagi antenna.
9. a radio communication device, is characterized in that, comprises antenna assembly as claimed in any of claims 1 to 8 in one of claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206725650U CN202957340U (en) | 2012-12-07 | 2012-12-07 | Antenna device and wireless communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206725650U CN202957340U (en) | 2012-12-07 | 2012-12-07 | Antenna device and wireless communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957340U true CN202957340U (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206725650U Expired - Fee Related CN202957340U (en) | 2012-12-07 | 2012-12-07 | Antenna device and wireless communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202957340U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256611A (en) * | 2018-11-07 | 2019-01-22 | 中国电子科技集团公司第五十四研究所 | A kind of high-gain Yagi antenna and preparation method thereof |
| CN110011064A (en) * | 2019-04-24 | 2019-07-12 | 合肥开泰机电科技有限公司 | A kind of ground radar antenna-reflected plate |
| CN110649374A (en) * | 2019-08-09 | 2020-01-03 | 佛山科新锘通讯有限公司 | Base station antenna |
| CN112397886A (en) * | 2020-11-06 | 2021-02-23 | 康威通信技术股份有限公司 | Narrow-beam directional antenna and preparation method thereof |
-
2012
- 2012-12-07 CN CN2012206725650U patent/CN202957340U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256611A (en) * | 2018-11-07 | 2019-01-22 | 中国电子科技集团公司第五十四研究所 | A kind of high-gain Yagi antenna and preparation method thereof |
| CN110011064A (en) * | 2019-04-24 | 2019-07-12 | 合肥开泰机电科技有限公司 | A kind of ground radar antenna-reflected plate |
| CN110649374A (en) * | 2019-08-09 | 2020-01-03 | 佛山科新锘通讯有限公司 | Base station antenna |
| CN112397886A (en) * | 2020-11-06 | 2021-02-23 | 康威通信技术股份有限公司 | Narrow-beam directional antenna and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA POTEVIO CO., LTD. Free format text: FORMER OWNER: PUTIAN IT TECH INST CO., LTD. Effective date: 20130916 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130916 Address after: 100080, No. two, 2 street, Zhongguancun science and Technology Park, Beijing, Haidian District Patentee after: CHINA POTEVIO CO.,LTD. Address before: 100080 Beijing, Haidian, North Street, No. two, No. 6, No. Patentee before: PETEVIO INSTITUTE OF TECHNOLOGY Co.,Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131202 Address after: 100080 Beijing, Haidian, North Street, No. two, No. 6, No. Patentee after: PETEVIO INSTITUTE OF TECHNOLOGY Co.,Ltd. Address before: 100080, No. two, 2 street, Zhongguancun science and Technology Park, Beijing, Haidian District Patentee before: CHINA POTEVIO CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20211207 |