CN201797047U - Dual-polarized base station antenna and base station - Google Patents
Dual-polarized base station antenna and base station Download PDFInfo
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- CN201797047U CN201797047U CN2010201784314U CN201020178431U CN201797047U CN 201797047 U CN201797047 U CN 201797047U CN 2010201784314 U CN2010201784314 U CN 2010201784314U CN 201020178431 U CN201020178431 U CN 201020178431U CN 201797047 U CN201797047 U CN 201797047U
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- base station
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Abstract
An embodiment of the utility model relates to a dual-polarized base station antenna and a base station. The dual-polarized base station antenna comprises a plurality of antenna feeder units in an array structure. Each antenna feeder unit includes a bottom plate, a main radiation unit, a plurality of accessory radiation units and a plurality of metal feeder lines, wherein the main radiation unit positioned above the bottom plate is electrically connected with the bottom plate by the aid of a first metal rod connected with the center of the main radiation unit, the accessory radiation units are positioned below the main radiation unit and evenly arranged on the periphery of the main radiation unit, partial surfaces of the accessory radiation units are covered by the main radiation unit, one end of each metal feeder line is connected with the corresponding accessory radiation unit, and the other ends of the metal feeder lines are respectively connected to a feeder port arranged on the bottom plate. By the aid of air-coupled structures of the main radiation unit and the accessory radiation units and the supporting function of the metal rods, the dual-polarized base station antenna and the base station have the advantages of broad band, simple and compact structure and low production cost.
Description
Technical field
The utility model relates to communication technical field, the Bipolarization antenna for base station and the base station of particularly a kind of TD-SCDMA system or TD-LTE system.
Background technology
The TD-SCDMA system is used in China on a large scale as the international mobile communication standard of the third generation that is proposed by China.At present, the TD-SCDMA outdoor base station has generally adopted intelligent antenna technology, its antenna size than the common big twice of 2G antenna about, therefore, broad in band, miniaturization, the efficientibility of TD-SCDMA outdoor base station antenna become the important research direction of current TD-SCDMA outdoor base station antenna.Dual polarized antenna can almost dwindle the swept area of antenna one times, and the swept area that can better solve common antenna is big, volume is big, optimize the problem that difficulty is big, influence aspect such as urban look.Therefore, how to make dual polarized antenna broad in band, miniaturization, the efficientibility emphasis in studying especially.
Existing dual polarized antenna generally is made of a plurality of air feedback units arranged into an array, each air feedback unit generally comprises: two symmetrical dipoles are arranged according to decussate texture and are fixed on the ground plate, symmetrical dipole is made of radiation arm and supporting bracket respectively again, also to be connected with the strip line that is used for feed on the symmetrical dipole, or the like.In the structure of existing dual polarized antenna, the shared swept area of symmetrical dipole that general decussate texture is arranged is bigger, the radiation arm of symmetrical dipole is also longer apart from the distance of ground plate, thereby the volume that causes each air feedback unit is all bigger, frequency band is narrow, and complex structure, production cost height.
The utility model content
The utility model embodiment provides a kind of Bipolarization antenna for base station and base station, so that the antenna that the base station had has bandwidth, volume is little, simple in structure, production cost is low advantage.
The utility model embodiment provides a kind of Bipolarization antenna for base station, comprises a plurality of air feedback units that form array structure, and described air feedback unit comprises: base plate;
Be positioned at the primary radiation unit of described base plate top, first Metallic rod and the described base plate that connect by described primary radiation unit center are electrically connected;
Be positioned at a plurality of collateral radiations unit of below, described primary radiation unit, described collateral radiation unit evenly is arranged on around the described primary radiation unit and the part surface of each described collateral radiation unit is covered by described primary radiation unit;
Many strip metals feeder line, an end of the described metal feeder of each bar connect with corresponding described collateral radiation unit respectively, and the other end of the described metal feeder of each bar is connected to the feed port that is arranged on the described base plate respectively.
Aforesaid Bipolarization antenna for base station, wherein, described primary radiation unit is the octagon structure.
Aforesaid Bipolarization antenna for base station, wherein, described collateral radiation unit is circular configuration or square structure.
Aforesaid Bipolarization antenna for base station, wherein, described metal feeder is a column construction.
Aforesaid Bipolarization antenna for base station, wherein, described first Metallic rod is a column construction.
Aforesaid Bipolarization antenna for base station, wherein, the number of described collateral radiation unit is 4.
Aforesaid Bipolarization antenna for base station, wherein, described air feedback unit also comprises: second Metallic rod and the parasitic element that is arranged at top, described primary radiation unit; One end of described second Metallic rod is connected with described parasitic element center, and the other end of described second Metallic rod is connected with the center of described primary radiation unit.
Aforesaid Bipolarization antenna for base station, wherein, described parasitic element is the square structure.
Aforesaid Bipolarization antenna for base station, wherein, described second Metallic rod and described first Metallic rod structure that is formed in one.
The utility model embodiment also provides a kind of base station, comprises aforesaid Bipolarization antenna for base station.
By above technical scheme as can be known, Air Coupling structure by primary radiation unit and collateral radiation unit, and the supporting role of Metallic rod, make the Bipolarization antenna for base station of the utility model embodiment and base station have the advantage of broadband, simple and compact for structure, low production cost.
Description of drawings
Fig. 1 is the plan structure schematic diagram of air feedback unit first embodiment in the utility model Bipolarization antenna for base station;
Fig. 2 is the structural representation of facing of air feedback unit first embodiment in the utility model Bipolarization antenna for base station;
Fig. 3 is another plan structure schematic diagram of air feedback unit first embodiment in the utility model Bipolarization antenna for base station;
Fig. 4 is the plan structure schematic diagram of air feedback unit second embodiment in the utility model Bipolarization antenna for base station;
Fig. 5 is the structural representation of facing of air feedback unit second embodiment in the utility model Bipolarization antenna for base station;
Fig. 6 is the return loss plot schematic diagram that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station;
Fig. 7 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=2.4Ghz, the gain characteristic curve figure in the time of phi=0 °;
Fig. 8 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=2.1Ghz, the gain characteristic curve figure in the time of phi=0 °;
Fig. 9 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=1.8Ghz, the gain characteristic curve figure in the time of phi=0 °;
Figure 10 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=2.4Ghz, the gain characteristic curve figure in the time of phi=90 °;
Figure 11 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=2.1Ghz, the gain characteristic curve figure in the time of phi=90 °;
Figure 12 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=1.8Ghz, the gain characteristic curve figure in the time of phi=90 °;
Figure 13 is a spacing schematic diagram between the primary radiation unit of the primary radiation unit of two adjacent octagon structures of the utility model embodiment and two adjacent square structures.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the plan structure schematic diagram of air feedback unit first embodiment in the utility model Bipolarization antenna for base station.Fig. 2 is the structural representation of facing of air feedback unit first embodiment in the utility model Bipolarization antenna for base station.Fig. 3 is another plan structure schematic diagram of air feedback unit first embodiment in the utility model Bipolarization antenna for base station.As Fig. 1, Fig. 2 and shown in Figure 3, wherein, the Reference numeral of same structure adopts identical label.This Bipolarization antenna for base station comprises a plurality of air feedback units 1 that form array structure, each air feedback unit 1 comprises base plate 11, this base plate 11 can be for can supporting antenna and the square-shaped metal chip architecture of feeder line structure, its upper surface is positioned on the horizontal plane XY plane of three-dimensional system of coordinate, and the center symmetric points all are positioned on the vertical axis Z axle of three-dimensional system of coordinate.Each air feedback unit 1 also comprises:
Be positioned at the primary radiation unit 12 of base plate 11 tops, first Metallic rod 13 that connects by 12 centers, primary radiation unit is electrically connected with base plate 11.Particularly, for compact conformation, primary radiation unit 12 can be positioned at base plate 11 directly over, primary radiation unit 12 place plane parallel are in the XY plane of three-dimensional system of coordinate, the center position of this primary radiation unit 12 has a small through hole, be connected with first Metallic rod 13 by this small through hole, this small through hole is positioned on the Z axle of three-dimensional system of coordinate.The shape of this primary radiation unit 12 can be adjusted, and is generally the polygonized structure of rule, as shown in Figure 1, perhaps is circular configuration, as shown in Figure 3.
Be positioned at a plurality of collateral radiations unit 14 of 12 belows, primary radiation unit, collateral radiation unit 14 evenly is arranged on around the primary radiation unit 12 and the part surface of each collateral radiation unit 14 is covered by primary radiation unit 12.Particularly, these collateral radiation unit 14 place plane parallel are in the XY plane of three-dimensional system of coordinate, the center of this collateral radiation unit 14 is evenly distributed on the center of circle and is positioned on the circumference on the Z axle of three-dimensional system of coordinate, and lays respectively on four quadrants that are parallel to the XY plane, symmetrically; A part of surface of collateral radiation unit 14 can be covered by primary radiation unit 12.The shape of this collateral radiation unit 14 also can be adjusted, can be that 4 of circular configuration are positioned on four quadrants that are parallel to the XY plane, symmetrical collateral radiation unit 14, as shown in Figure 1, also can be that 4 of polygonized structure of rule are positioned on four quadrants that are parallel to the XY plane, symmetrical collateral radiation unit 14, as shown in Figure 3.
As shown in Figure 2, this air feedback unit 1 also comprises many strip metals feeder line 15, one end of each strip metal feeder line 15 connects with corresponding collateral radiation unit 14 respectively, and the other end of each strip metal feeder line 15 is connected to the feed port (not shown) that is arranged on the base plate 11 respectively.Preferably, an end of each strip metal feeder line 15 can be respectively be connected with the center of corresponding collateral radiation unit 14, and it can also be seen that in Fig. 2 collateral radiation unit 14 does not contact with primary radiation unit 12, certain at interval distance.
Wherein, after feed port transfers to collateral radiation unit 14 by metal feeder 15 with the signal of telecommunication, the Air Coupling of the energy that this signal of telecommunication is transformed by collateral radiation unit 14 by 12 of collateral radiation unit 14 and primary radiation unit be to primary radiation unit 12, and by the dual polarization electromagnetic wave of primary radiation unit 12 to extraneous radiation generation.On the contrary, after primary radiation unit 12 received the dual polarization electromagnetic wave signal, the electrical signal transfer after will changing by collateral radiation unit 14, metal feeder 15 was in other processing modules of base station.Wherein, adopt the structure of primary radiation unit 12 and 14 combinations of collateral radiation unit, Air Coupling can form a broadband impedance variation device, thereby improve the electromagnetic frequency bandwidth of primary radiation unit 12 radiation, and because the air dielectric loss is low, the electromagnetic Insertion Loss of primary radiation unit 12 radiation is also little, in addition, can also increase the electromagnetic bandwidth of radiation and the product value of directive gain.
In addition, because the primary radiation unit 12 of this Air Coupling and the structure of collateral radiation unit 14, the whole height of this air feedback unit 1 need not very high, just can satisfy the electromagnetic energy that metal feeder 15 provides to primary radiation unit 12, this primary radiation unit 12 to the height of base plate 11 only needs to get final product about 3cm, thereby makes the smaller volume of each air feedback unit 1.
In addition,, support, can dwindle the area of base plate 11 as far as possible owing to make primary radiation unit 12 need not other strutting pieces to primary radiation unit 12 passive first Metallic rod 13, therefore, can be so that the final air feedback unit 1 further miniaturization that constitutes.This first Metallic rod 13 is positioned on the Z axle of three-dimensional system of coordinate, and its antenna pattern that can control primary radiation unit 12 well is about these first Metallic rod, 13 symmetries; And these first Metallic rod, 13 electrical groundings provide the DC loop of primary radiation unit 12 to base plate 11, have avoided the electrostatic charge accumulation of air feedback unit 1, can in time discharge, and the ability that the antagonism electricity is provided, has been struck by lightning.
By the Air Coupling structure of primary radiation unit and collateral radiation unit, and the supporting role of first Metallic rod, the Bipolarization antenna for base station that present embodiment provides has the advantage of broadband, simple and compact for structure, low production cost.
Fig. 4 is the plan structure schematic diagram of air feedback unit second embodiment in the utility model Bipolarization antenna for base station.Fig. 5 is the structural representation of facing of air feedback unit second embodiment in the utility model Bipolarization antenna for base station.As shown in Figure 4 and Figure 5, this air feedback unit 4 comprises base plate 41, primary radiation unit 42, first Metallic rod 43, collateral radiation unit 44 and metal feeder 45, the something in common of the described structure of air feedback unit first embodiment in said structure and the Bipolarization antenna for base station does not repeat them here, and the difference to the structure of the air feedback unit of present embodiment and the described air feedback unit of first embodiment of the air feedback unit in the Bipolarization antenna for base station is described in detail below.
Wherein, the primary radiation unit 42 in this air feedback unit 4 is the octagon structure, and collateral radiation unit 44 is a circular configuration, and metal feeder 45 is column construction (a for example cylindrical structural).The primary radiation unit 42 of this octagon structure is better than the electromagnetic cross polarization isolation of primary radiation unit 42 radiation of circular configuration, from the gain characteristic curve figure that the obtains band bandwidth of the primary radiation unit 42 of octagon structure as can be seen, as Fig. 6～shown in Figure 12, wherein, Fig. 6 is the return loss plot schematic diagram that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station, Fig. 7 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=2.4Ghz, gain characteristic curve figure in the time of phi=0 °, Fig. 8 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=2.1Ghz, gain characteristic curve figure in the time of phi=0 °, Fig. 9 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=1.8Ghz, gain characteristic curve figure in the time of phi=0 °, Figure 10 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=2.4Ghz, gain characteristic curve figure in the time of phi=90 °, Figure 11 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=2.1Ghz, gain characteristic curve figure in the time of phi=90 °, Figure 12 is that a plurality of air feedback units shown in Figure 4 constitute Bipolarization antenna for base station at f=1.8Ghz, the gain characteristic curve figure in the time of phi=90 °.
The air feedback unit 4 that the primary radiation unit 42 of this octagon structure constitutes is when carrying out array arrangement, and is tightr during air feedback unit 4 array arrangements that can constitute than the primary radiation unit 42 of square structure, can realize intensive aerial array.Figure 13 is a spacing schematic diagram between the primary radiation unit of the primary radiation unit of two adjacent octagon structures of the utility model embodiment and two adjacent square structures, as shown in figure 13,42 spacing schematic diagrames in primary radiation unit of the primary radiation unit 42 of two adjacent octagon structures and two adjacent square structures, d1＞d2 wherein, therefore, the primary radiation unit 42 of octagon structure helps realizing intensive aerial array more.In addition,, also can make metal feeder 45 network size become big, thereby strengthen the volume of aerial array, increase the feed Insertion Loss of metal feeder 45 if adopt the primary radiation unit 42 of square structure.
This air feedback unit 4 can also comprise second Metallic rod 46 and be arranged at the parasitic element 47 of 42 tops, primary radiation unit, one end of second Metallic rod 46 is connected with parasitic element 47 centers, the other end of second Metallic rod 46 is connected with the center of primary radiation unit 42, be used for by regulating parasitic element 47 shape, surface area and and the distance of 42 of primary radiation unit, suppress the common mode radiation between the dual polarization electromagnetic wave that primary radiation unit 42 produces, improve cross polarization isolation, thereby further improve directive gain, the increase frequency bandwidth of air feedback unit.
This parasitic element 47 can be the square structure, as shown in Figure 4.In addition, first Metallic rod 43 and second Metallic rod 46 structure that can be formed in one, and pass the small through hole at 42 centers, primary radiation unit.
In addition, the interval that radius, shape, length and primary radiation unit 42 that can also be by fine setting first Metallic rod 43 and second Metallic rod 46 and parasitic element are 47, thereby finely tune antenna band bandwidth and directive gain value, thereby realize every performance index of this air feedback unit 4 better.
The embodiment of the invention can also comprise a kind of base station, and this base station comprises aforesaid Bipolarization antenna for base station, thereby improves the effect that this base station sends and receives signal, and reduces the construction cost of base station.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a Bipolarization antenna for base station is characterized in that, comprises a plurality of air feedback units that form array structure, and described air feedback unit comprises: base plate;
Be positioned at the primary radiation unit of described base plate top, first Metallic rod and the described base plate that connect by described primary radiation unit center are electrically connected;
Be positioned at a plurality of collateral radiations unit of below, described primary radiation unit, described collateral radiation unit evenly is arranged on around the described primary radiation unit and the part surface of each described collateral radiation unit is covered by described primary radiation unit;
Many strip metals feeder line, an end of the described metal feeder of each bar connect with corresponding described collateral radiation unit respectively, and the other end of the described metal feeder of each bar is connected to the feed port that is arranged on the described base plate respectively.
2. Bipolarization antenna for base station according to claim 1 is characterized in that, described primary radiation unit is the octagon structure.
3. Bipolarization antenna for base station according to claim 1 is characterized in that, described collateral radiation unit is circular configuration or square structure.
4. Bipolarization antenna for base station according to claim 1 is characterized in that, described metal feeder is a column construction.
5. Bipolarization antenna for base station according to claim 1 is characterized in that, described first Metallic rod is a column construction.
6. Bipolarization antenna for base station according to claim 1 is characterized in that, the number of described collateral radiation unit is 4.
7. according to the arbitrary described Bipolarization antenna for base station of claim 1-6, it is characterized in that described air feedback unit also comprises: second Metallic rod and the parasitic element that is arranged at top, described primary radiation unit; One end of described second Metallic rod is connected with described parasitic element center, and the other end of described second Metallic rod is connected with the center of described primary radiation unit.
8. Bipolarization antenna for base station according to claim 7 is characterized in that, described parasitic element is the square structure.
9. Bipolarization antenna for base station according to claim 7 is characterized in that, described second Metallic rod and described first Metallic rod structure that is formed in one.
10. a base station is characterized in that, comprises each described Bipolarization antenna for base station as claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201784314U CN201797047U (en) | 2010-04-29 | 2010-04-29 | Dual-polarized base station antenna and base station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201784314U CN201797047U (en) | 2010-04-29 | 2010-04-29 | Dual-polarized base station antenna and base station |
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| CN201797047U true CN201797047U (en) | 2011-04-13 |
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| CN2010201784314U Expired - Lifetime CN201797047U (en) | 2010-04-29 | 2010-04-29 | Dual-polarized base station antenna and base station |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882004A (en) * | 2012-06-29 | 2013-01-16 | 华为技术有限公司 | Electromagnetic dipole antenna |
| CN103337700A (en) * | 2013-06-20 | 2013-10-02 | 苏州安洁科技股份有限公司 | Antenna capable of improving impedance matching and bandwidth character |
| CN107959110A (en) * | 2017-11-15 | 2018-04-24 | 南京濠暻通讯科技有限公司 | A kind of GSM dual polarized panel antennas |
| CN113193358A (en) * | 2021-04-25 | 2021-07-30 | Oppo广东移动通信有限公司 | Antenna device, electronic tag device, and communication system |
| CN116387799A (en) * | 2023-05-08 | 2023-07-04 | 盛合晶微半导体(江阴)有限公司 | Dual-polarized air coupling antenna packaging structure and preparation method |
| CN113193358B (en) * | 2021-04-25 | 2024-05-14 | Oppo广东移动通信有限公司 | Antenna device, electronic tag device and communication system |
-
2010
- 2010-04-29 CN CN2010201784314U patent/CN201797047U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882004A (en) * | 2012-06-29 | 2013-01-16 | 华为技术有限公司 | Electromagnetic dipole antenna |
| US9590320B2 (en) | 2012-06-29 | 2017-03-07 | Huawei Technologies Co., Ltd. | Electromagnetic dipole antenna |
| CN103337700A (en) * | 2013-06-20 | 2013-10-02 | 苏州安洁科技股份有限公司 | Antenna capable of improving impedance matching and bandwidth character |
| CN107959110A (en) * | 2017-11-15 | 2018-04-24 | 南京濠暻通讯科技有限公司 | A kind of GSM dual polarized panel antennas |
| CN113193358A (en) * | 2021-04-25 | 2021-07-30 | Oppo广东移动通信有限公司 | Antenna device, electronic tag device, and communication system |
| CN113193358B (en) * | 2021-04-25 | 2024-05-14 | Oppo广东移动通信有限公司 | Antenna device, electronic tag device and communication system |
| CN116387799A (en) * | 2023-05-08 | 2023-07-04 | 盛合晶微半导体(江阴)有限公司 | Dual-polarized air coupling antenna packaging structure and preparation method |
| CN116387799B (en) * | 2023-05-08 | 2023-10-27 | 盛合晶微半导体(江阴)有限公司 | Dual-polarized air coupling antenna packaging structure and preparation method |
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