CN203134965U - Dual-polarized microstrip antenna - Google Patents
Dual-polarized microstrip antenna Download PDFInfo
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- CN203134965U CN203134965U CN 201220749908 CN201220749908U CN203134965U CN 203134965 U CN203134965 U CN 203134965U CN 201220749908 CN201220749908 CN 201220749908 CN 201220749908 U CN201220749908 U CN 201220749908U CN 203134965 U CN203134965 U CN 203134965U
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- 238000005530 etching Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000010287 polarization Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000002860 competitive effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a dual-polarized microstrip antenna. The dual-polarized microstrip antenna comprises a printed circuit board, and a first radiation element and a second radiation element are etched on the upper surface of the printed circuit board and are in series feed connection. The dual-polarized microstrip antenna of the utility model has the advantages of high gain and large bandwidth and isolation, and with the use of an FR4 low frequency board, enables the cost to be reduced substantially, the high gain and wide frequency band market demands to be satisfied and the market competitiveness to be enhanced, is simple and firm in structure, is easy to install, and is suitable for mass production.
Description
Technical field
The utility model relates to the dual polarized antenna structure.
Background technology
Dual polarized antenna is a kind of new antenna technology, is widely used in WLAN, antenna system, 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 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 the poliarizing antenna, then 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 antenna volume more and more littler, performance is more high; The electric property of antenna requires high-isolation, high-gain, requires to have good directivity simultaneously again.
Enterprise not only is required to provide the wide frequency antenna of function admirable in intense market competition, but also is required to reduce the production cost of antenna as far as possible.This just must claim to the technological layer of antenna, require that designed antenna structure is simple firmly, volume is little, in light weight, 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.
Microstrip antenna on the market is because volume is little, in light weight at present, and section and low cost and other advantages are widely used.Yet important indicators such as the size of antenna, bandwidth, gain but have been subjected to the restriction (gain margin under the fixed dimension, bandwidth limit etc.) of physical principle.And in order to promote the performance index of antenna, tend to use cost than higher F4B high frequency plate, promote gain and the bandwidth of antenna.Yet, generally adopt between the first present radiant element and second radiant element and the shared radiating element of feedback mode, make the electric current of feed port be coupled to electric current reinforcement that another presents mouth like this, isolation is low.
The utility model content
The purpose of this utility model is to propose a kind of double polarized micro strip 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:
A kind of double polarized micro strip antenna, it comprises printed wiring board, and the upper surface etching of described printed wiring board has first radiant element and second radiant element, and first radiant element is connected with second radiant element is series feed.
Preferably, first radiant element, second radiant element are made up of 60 radiating elements respectively, wherein have 20 radiating elements to be shared by first radiant element, second radiant element, 20 radiating elements that share all with 40 non-shared radiating elements of first radiant element, 40 non-shared series feed connections of radiating element of second radiant element.Further preferred, offer the groove for the guide current direction on each radiating element, like this, can make the electric current on the radiating element have more directivity, make radiation more concentrate on top and the end of radiating element.
Preferably, 20 radiating elements of Gong Yonging connection that intercouples.
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, bandwidth is big, the advantage that isolation is big, 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 double polarized micro strip antenna of the utility model preferred embodiment;
Fig. 2 is the A district enlarged drawing of Fig. 1.
Reference numeral: 3, printed wiring board; 31, first radiant element; 32, second radiant element; 33,20 radiating elements; 300, groove.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
As depicted in figs. 1 and 2, a kind of double polarized micro strip antenna comprises printed wiring board 3, and the upper surface etching of printed wiring board 3 has first radiant element 31 and second radiant element, 32, the first radiant elements 31 and 32 series feed connections of second radiant element.Concrete, first radiant element 31, second radiant element 32 are made up of 60 radiating elements respectively, wherein there are 20 radiating elements 33 to be shared by first radiant element 31, second radiant element 32, the mode that shares is series feed connection, namely 20 radiating elements 33 of Gong Yonging all with 40 non-shared radiating elements of first radiant element 31,40 non-shared series feed connections of radiating element of second radiant element 32, so not only can save the space, can also make the loss of feeding network drop to minimum.20 radiating elements 33 that share adopt coupled modes to connect, and make the CURRENT DISTRIBUTION of radiant element be coupled to the current decay of another feed port from a feed port like this, thereby improve two isolation between the feed port.
The first transmission circuit network B1, can operate to being in the many of 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 second radiant element 32 radiating element to be presented one or more signal at least.As shown in Figure 2, each radiating element offers groove 300, makes the electric current on the radiating element have more directivity like this, make radiation more concentrate on the top of radiating element and not the end, accomplish high-gain and good bandwidth.
The printed wiring board 3 of present embodiment adopts FR4 low frequency plate.
Present embodiment is stable in whole working frequency range 4950MHz-5950MHz index, and gain can reach 23DBI.Reasonable each unit in the distribution antenna battle array makes the parameters such as isolation, return loss, standing-wave ratio of antenna all reach stable indexes, can reach 30 degree as isolation, and standing-wave ratio can reach below 1.7.
Present embodiment has high-gain, bandwidth is big, the advantage that isolation is big, 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 it is simple in structure firm, be easy to install, be suitable for mass production, strengthened the competitive strength in market.
Double polarized micro strip 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 that be operated in simultaneously under the transmission duplex pattern, each residential quarter only needs a secondary double polarized micro strip 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 when dual-mode, also increasing by 4 pairs at least), because (RX-TX between the antenna, isolation TX-TX) (〉=30dB) and between the space diversity reception to communicate requirement antenna level and perpendicular separation distance are arranged, at this moment must enlarge the platform that fixes up an aerial wire, increase capital expenditure.And in the dual polarized antenna, ± 45 ° polarization orthogonal can guarantee+isolation between 45 ° and-45 ° of two slave antennas satisfy intermodulation to isolation between antennas require (〉=30dB), space interval between the double polarized micro strip antenna only needs 20 ~ 30cm, therefore can build iron tower, the iron prop that only needs a diameter 20cm of frame is fixed on dual polarized antenna on the iron prop by corresponding coverage direction and gets final product.Double polarized micro strip 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.Because ± 45 ° are orthogonal polarization, therefore can effectively guarantee diversity reception, its polarization diversity gain is about 5dB, than the about 2dB of space diversity raising 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 it is best that antenna covers positive direction, 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 since the reflecting surface width cause ± 45 ° of quadrature deleterious cause), therefore can effectively improve the reception of edge, guarantee coverage.
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 distortion should belong within the protection range of the utility model claim all.
Claims (5)
1. a double polarized micro strip antenna is characterized in that, comprises printed wiring board, and the upper surface etching of described printed wiring board has first radiant element and second radiant element, and first radiant element is connected with second radiant element is series feed.
2. double polarized micro strip antenna as claimed in claim 1, it is characterized in that, first radiant element, second radiant element are made up of 60 radiating elements respectively, wherein have 20 radiating elements to be shared by first radiant element, second radiant element, 20 radiating elements that share all with 40 non-shared radiating elements of first radiant element, 40 non-shared series feed connections of radiating element of second radiant element.
3. double polarized micro strip antenna as claimed in claim 2 is characterized in that, offers the groove for the guide current direction on each radiating element.
4. double polarized micro strip antenna as claimed in claim 2 is characterized in that, 20 radiating elements that share connection that intercouples.
5. as each described double polarized micro strip antenna of claim 1-4, it is characterized in that described printed wiring board is FR4 low frequency plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749908 CN203134965U (en) | 2012-12-31 | 2012-12-31 | Dual-polarized microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749908 CN203134965U (en) | 2012-12-31 | 2012-12-31 | Dual-polarized microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203134965U true CN203134965U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220749908 Expired - Fee Related CN203134965U (en) | 2012-12-31 | 2012-12-31 | Dual-polarized microstrip antenna |
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| Country | Link |
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| CN (1) | CN203134965U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10191152B2 (en) | 2016-07-29 | 2019-01-29 | Honeywell International Inc. | Low-cost lightweight integrated antenna for airborne weather radar |
| CN110121841A (en) * | 2017-01-25 | 2019-08-13 | 华为技术有限公司 | A beam forming method and base station |
| 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
- 2012-12-31 CN CN 201220749908 patent/CN203134965U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10191152B2 (en) | 2016-07-29 | 2019-01-29 | Honeywell International Inc. | Low-cost lightweight integrated antenna for airborne weather radar |
| CN110121841A (en) * | 2017-01-25 | 2019-08-13 | 华为技术有限公司 | A beam forming method and base station |
| 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 |
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| 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 |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20211231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |