CN202940328U - Integrated dual polarized antenna - Google Patents
Integrated dual polarized antenna Download PDFInfo
- Publication number
- CN202940328U CN202940328U CN 201220524302 CN201220524302U CN202940328U CN 202940328 U CN202940328 U CN 202940328U CN 201220524302 CN201220524302 CN 201220524302 CN 201220524302 U CN201220524302 U CN 201220524302U CN 202940328 U CN202940328 U CN 202940328U
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- antenna
- dual polarized
- polarized antenna
- wiring board
- printed wiring
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Abstract
The utility model relates to an integrated dual polarized antenna which comprises an antenna plastic shell, a printed circuit board, a metal reflecting plate and a casting shell. The antenna plastic shell, the printed circuit board, the metal reflecting plate and the casting shell are assembled from top to bottom. The casting shell is internally provided with a containing space which can be embedded by a plurality of electronic elements. After the containing space is embedded by the plurality of electronic elements according to needs, the integrated dual polarized of the utility model has MIMO antenna performance. An upper surface of the printed circuit board is etched with a first radiating element and a second radiating element which are in series feed connection. The integrated dual polarized antenna has the advantages of a high gain, a large bandwidth and a large isolation degree, an FR4 low frequency plate is employed, thus the product cost is reduced greatly, requirements of the high gain and broad band are satisfied, the structure is simple and firm, the installation is easy, the integrated dual polarized antenna is suitable for mass production, and intensity of competition of the antenna in the market is strengthened.
Description
Technical field
The utility model relates to dual-polarized antenna structure.
Background technology
Dual polarized antenna is a kind of new antenna technology, is widely used in WLAN, and antenna system is as multi-input/output antenna (Multiple-Input Multiple-Output, MIMO).In general, dual polarized antenna requires the antenna of two polarization with work frequently, and performance difference is as far as possible little, therefore, and the normal square radiant body with symmetrical structure that adopts.Microstrip antenna is because the characteristics such as profile is low, processing is simple, high conformity, polarization are easy to control often are used to make double polarized micro strip antenna.And how to improve two isolations between poliarizing antenna, be the subject matter that double polarized micro strip antenna faces.
Along with the development of mobile communication technology, more and more higher to the requirement of antenna, bandwidth and performance are all had higher requirement.Require the volume of antenna more and more less, performance is higher; The electric property of antenna requires high-isolation, high-gain, requires to have again simultaneously good directivity.
Enterprise not only is required to provide the wide frequency antenna of function admirable in the market competition of fierceness, but also is required the production cost of reduce antenna.This just must claim to the technological layer of antenna, require that designed antenna structure is simple firmly, volume is little, lightweight, processing is simple, easy for installation, welding is simple, with low cost, be fit to produce in enormous quantities, and can be applicable to outdoor boisterous environment for use.
Present microstrip antenna on the market is because volume is little, and lightweight, section and low cost and other advantages are widely used.Yet the important indicators such as the size of antenna, bandwidth, gain but have been subject to the restriction (gain margin under fixed dimension, bandwidth limit etc.) of physical principle.And in order to promote the performance index of antenna, tend to the higher F4B high frequency plate of use cost, promote gain and the bandwidth of antenna.Yet, generally adopt between the first present radiating element and the second radiating element and the shared radiating element of feedback mode, the current coupling of feed port is strengthened to electric current of another feedback mouth, isolation is low.
The utility model content
The purpose of this utility model is to propose a kind of integral type dual polarized antenna, and it can solve the low problem of isolation of the dual polarized antenna of prior art.
In order to achieve the above object, the technical scheme that adopts of the utility model is as follows:
The integral type dual polarized antenna, it comprises antenna glue shell, printed wiring board, metallic reflection plate and compression casting shell; Antenna glue shell, printed wiring board, metallic reflection plate, compression casting shell be assembling successively from top to bottom; Be provided with the accommodation space that embeds for a plurality of electronic components in compression casting shell, embed as required a plurality of electronic components in described accommodation space after, can make dual polarized antenna of the present utility model have the MIMO antenna performance; The upper surface etching of printed wiring board has the first radiant element and the second radiant element, and the first radiant element is connected with the second radiant element is series feed.
Preferably, in order to improve the fail safe of using in outdoor adverse circumstances, the antenna glue shell is tightly connected by a glue shell water proof ring and printed wiring board, can reach IP67 waterproof level.
Preferably, in order to improve the fail safe of using in outdoor adverse circumstances, compression casting shell is tightly connected by a compression casting shell water proof ring and metallic reflection plate.
Preferably, printed wiring board is connected with the metallic reflection plate by joint pin, joint pin ground connection.Distance between printed wiring board and metallic reflection plate is 2.5mm.Make the height between printed substrate and metallic reflection plate be controlled at 2.5mm, the whole height of the radiant element of dual polarized antenna is reduced, thereby the overall dimensions of dual polarized antenna is reduced.
Preferably, in order to reduce the feeding network loss and to improve gain, described printed wiring board is FR4 low frequency plate.
The utlity model has following beneficial effect:
Have high-gain, be with roomy, the advantage that isolation is large, and adopted FR4 low frequency plate, the cost of product is reduced greatly, both satisfied the high-gain in market, wide band requirement, and simple in structure firm, be easy to install, be suitable for mass production, strengthened the competitive strength in market.
Description of drawings
Fig. 1 is the structural representation of the integral type dual polarized antenna of the utility model preferred embodiment;
Fig. 2 is the fractionation schematic diagram of Fig. 1;
Fig. 3 is printed wiring board in Fig. 1 and the connection diagram of metallic reflection plate;
Fig. 4 is the structural representation of the upper surface of the printed wiring board in Fig. 1;
Fig. 5 is the A district enlarged drawing of Fig. 4.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
As extremely shown in Figure 5 in Fig. 1, the integral type dual polarized antenna, it comprises antenna glue shell 1, printed wiring board 3, metallic reflection plate 4 and compression casting shell 6.
Antenna glue shell 1, printed wiring board 3, metallic reflection plate 4, compression casting shell 6 be assembling successively from top to bottom, concrete, antenna glue shell 1 is tightly connected with printed wiring board 3 by a glue shell water proof ring 2, compression casting shell 6 is tightly connected with metallic reflection plate 4 by a compression casting shell water proof ring 5, can reach IP67 waterproof level, greatly strengthen the fail safe of using in outdoor adverse circumstances.
Being provided with in compression casting shell 6 can be for the accommodation space of a plurality of electronic components embeddings, embed as required a plurality of electronic components in described accommodation space after, can make the dual polarized antenna of the present embodiment accomplish multiple-input and multiple-output, can conveniently regulate the performance of dual polarized antenna and the frequency range of required response, have the MIMO antenna performance.
The first radiant element 31 and the second radiant element 32, the first radiant elements 31 are arranged in the upper surface etching of printed wiring board 3 and second radiant element 32 is series feed is connected.Concrete, the first radiant element 31, the second radiant element 32 are comprised of 60 radiating elements respectively, wherein there are 20 radiating elements 33 to be shared by the first radiant element 31, the second radiant element 32, the mode that shares is series feed connection, so not only can save the space, the loss of feeding network is dropped to minimum, thereby improve gain.The first transmission circuit network B1, can operate to being in the many of the first radiant element 31, radiating element to be presented one or more signal at least, the second transmission circuit network B2 can operate to being in the many of the second radiant element 32, radiating element to be presented one or more signal at least.As shown in Figure 5, each radiating element offers groove 300, makes like this electric current on radiating element have more directivity, makes radiation more concentrate on top and the end of radiating element, accomplishes high-gain and good bandwidth.
Printed wiring board 3 is connected with metallic reflection plate 4 by joint pin 7, joint pin 7 ground connection.Distance between printed wiring board 3 and metallic reflection plate 4 is 2.5mm.Make the height between printed substrate 3 and metallic reflection plate 4 be controlled at 2.5mm, the whole height of the radiant element of dual polarized antenna is reduced, thereby the overall dimensions of dual polarized antenna is reduced.
The printed wiring board 3 of the present embodiment adopts FR4 low frequency plate.
The present embodiment is stable in whole working frequency range 4950MHz-5950MHz index, and gain can reach 23DBI.Unit in the reasonable layout antenna array makes the parameters such as isolation, return loss, standing-wave ratio of antenna all reach stable index, can reach 30 degree as isolation, and standing-wave ratio can reach below 1.7.
The present embodiment has high-gain, be with roomy, the advantage that isolation is large, and adopted FR4 low frequency plate, and the cost of product is reduced greatly, both satisfied the high-gain in market, wide band requirement, and simple in structure firm, be easy to install, be suitable for mass production, strengthened the competitive strength in market.
Dual polarized antenna can be controlled coverage effectively, is one of method that reduces co-channel interference and the reception of improving signal.Be a kind of new antenna technology, made up+45 ° and-45 ° of two antenna that the consequent pole direction is mutually orthogonal, be operated in simultaneously under the transmission duplex pattern, each residential quarter only needs a secondary dual polarized antenna.
For example, when omni cell splits into three residential quarters, at most only increase common antenna (former omni cell is 2 slave antennas at dual-mode).And traditional single-polarized antenna, when omni cell is split into three residential quarters, antenna amount sharp increase (even also increasing at least by 4 pairs when dual-mode), due to (RX-TX between antenna, isolation TX-TX) (〉=30dB) and between space diversity reception to communicate requirement antenna the horizontal and vertical spacing distance is arranged, at this moment must enlarge the platform that fixes up an aerial wire, increase capital expenditure.And in dual polarized antenna, the polarization orthogonal of ± 45 ° can guarantee+isolation between 45 ° and-45 ° of two slave antennas satisfy intermodulation to isolation between antennas require (〉=30dB), space interval between dual polarized antenna only needs 20 ~ 30cm, therefore can build steel tower, the iron prop that only needs a diameter 20cm of frame is fixed on dual polarized antenna on iron prop by corresponding coverage direction and gets final product.Dual polarized antenna permission system adopts the polarization diversity reception technique, and its principle is the irrelevance of utilizing between ± 45 ° of polarised directions, and irrelevance degree has between the two determined the quality of diversity reception.For orthogonal polarization, therefore can effectively guarantee diversity reception due to ± 45 °, its polarization diversity gain is about 5dB, improves approximately 2dB than the space diversity of the common employing of single-polarized antenna.In addition, the space diversity reception effect of single-polarized antenna is relevant with the position of two secondary reception antennas, and the antenna cover positive direction is best, weakens to both sides gradually, causes the actual coverage in residential quarter to be dwindled.Adopt polarization diversity to replace space diversity reception to communicate, almost it doesn't matter for diversity gain and aerial position, the difference that covers principal direction and edge very little (this difference due to the reflecting surface width cause ± 45 ° of quadrature deleterious cause), therefore can effectively improve the reception of edge, ensuring coverage scope.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and the distortion all should belong to the protection range of the utility model claim within.
Claims (6)
1. the integral type dual polarized antenna, is characterized in that, comprises antenna glue shell, printed wiring board, metallic reflection plate and compression casting shell; Antenna glue shell, printed wiring board, metallic reflection plate, compression casting shell be assembling successively from top to bottom; Be provided with the accommodation space that embeds for a plurality of electronic components in compression casting shell; The upper surface etching of printed wiring board has the first radiant element and the second radiant element, and the first radiant element is connected with the second radiant element is series feed.
2. integral type dual polarized antenna as claimed in claim 1, is characterized in that, the antenna glue shell is tightly connected by a glue shell water proof ring and printed wiring board.
3. integral type dual polarized antenna as claimed in claim 1, is characterized in that, compression casting shell is tightly connected by a compression casting shell water proof ring and metallic reflection plate.
4. integral type dual polarized antenna as claimed in claim 1, is characterized in that, printed wiring board is connected with the metallic reflection plate by joint pin, joint pin ground connection.
5. integral type dual polarized antenna as claimed in claim 4, is characterized in that, the distance between printed wiring board and metallic reflection plate is 2.5mm.
6. integral type dual polarized antenna as described in claim 1-5 any one, is characterized in that, described printed wiring board is FR4 low frequency plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524302 CN202940328U (en) | 2012-10-12 | 2012-10-12 | Integrated dual polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524302 CN202940328U (en) | 2012-10-12 | 2012-10-12 | Integrated dual polarized antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940328U true CN202940328U (en) | 2013-05-15 |
Family
ID=48324551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220524302 Expired - Lifetime CN202940328U (en) | 2012-10-12 | 2012-10-12 | Integrated dual polarized antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI726534B (en) * | 2019-12-13 | 2021-05-01 | 耀登科技股份有限公司 | Common antenna assembly and common antenna structure |
-
2012
- 2012-10-12 CN CN 201220524302 patent/CN202940328U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI726534B (en) * | 2019-12-13 | 2021-05-01 | 耀登科技股份有限公司 | Common antenna assembly and common antenna structure |
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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: FOSHAN AOXIN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FOSHAN SANSHUI BOBOTO TELECOM INSTRUMENT FACTORY Effective date: 20140220 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140220 Address after: 528100, No. 10, No. four, four, Nanfeng Road, Xinan street, Sanshui District, Sanshui District, Guangdong, Foshan (No. 2) Patentee after: FOSHAN AOXIN TECHNOLOGY Co.,Ltd. Address before: 528100, No. 10, No. four, four, Nanfeng Road, Xinan street, Sanshui District, Sanshui District, Guangdong, Foshan (No. 1) Patentee before: Foshan City Sanshui District Bubuto Telecom Instrument Factory |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |