CN206370495U - Dual-polarization omnidirectional antenna - Google Patents
Dual-polarization omnidirectional antenna Download PDFInfo
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- CN206370495U CN206370495U CN201621327409.5U CN201621327409U CN206370495U CN 206370495 U CN206370495 U CN 206370495U CN 201621327409 U CN201621327409 U CN 201621327409U CN 206370495 U CN206370495 U CN 206370495U
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- radiation unit
- arm
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Abstract
The utility model describes a kind of dual-polarization omnidirectional antenna, including antenna house, support and coaxial connector, the outside of antenna house is provided with antenna end cap, vertical plane radiation unit and horizontal plane radiation unit pcb board are internally provided with, and vertical plane radiation unit is made up of wideband conical transducer and including longitudinally disposed first module arm and second unit arm；Horizontal plane radiation unit pcb board matching connection converts pcb board；Coaxial connector is connected by coaxial cable with matched transform pcb board and vertical plane radiation unit.I.e. the utility model is by the way that low-and high-frequency unit is set on the same axis so that total can be in a cylinder, so as to simplify structure；Simultaneously as low-and high-frequency is in Different Plane, and it is coaxial, so antenna pattern circularity is good, it is few to realize part, lightweight, low is required to support member, with low cost, low passive intermodulation characteristic, working frequency range is wide, antenna pattern circularity is good, return loss is small, simple in construction, the advantages of productibility is high.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of it can realize the working frequency range (698- of multiband
960MHz, 1710-2700MHz), and with passive third order intermodulation characteristic it is good (<- 140dBc@2*2W), radiation characteristic is good, with
And the low advantage of return loss, and it is particularly suitable for use in the dual-polarization omnidirectional antenna of outdoor DAS (distributing antenna system).
Background technology
With the development and the continuous improvement of people's living standard of technology, requirement of the people to the communication technology is also carried therewith
It is high.In communication technical field, antenna can will transmit the guided wave of above-the-line promotion, be transformed into nothing as a kind of converter
The electromagnetic wave propagated in boundary's medium (being typically free space), or opposite conversion is carried out, so that as in wireless device
For launching or receiving the important component of electromagnetic wave.
At present, dual polarized antenna has obtained increasing application as a kind of new antenna technology；The dual polarized antenna
It is combined with the mutually orthogonal antennas of the secondary polarised direction of+45 ° and -45 ° two and while be operated under transmission duplex pattern, therefore it is most
Prominent advantage is to save the antenna amount of single directional base station；Directional base station (three fans of general GSM digital mobile communication networks
Area) 6 antennas are used, it is each fan-shaped using 2 antennas (space diversity a, hair two is received), if using dual polarized antenna, often
Individual sector only needs to 1 antenna；Simultaneously because in dual polarized antenna, ± 45 ° of polarization orthogonal can ensure+45 ° and-
Isolation between 45 ° of two slave antenna meets requirement (>=30dB) of the intermodulation to isolation between antennas, thus dual polarized antenna it
Between space interval only need 20-30cm；In addition, dual polarized antenna has the advantages that electrical tilt antenna, used in mobile radio communication
Dual polarized antenna is the same with electrical tilt antenna, can reduce call loss, reduces interference, improves the service quality of the whole network.If using double
Poliarizing antenna, because dual polarized antenna is not high to setting up installation requirement, it is not necessary to which tower is built in expropriation of land, it is only necessary to piece diameter 20cm of frame
Iron prop, dual polarized antenna is fixed on iron prop by corresponding coverage direction, so that capital expenditure is saved, while making base station
Layout is more reasonable, and the selected of base station site is more prone to.
Simultaneously as ± 45 ° are cross polarization, good result (its polarization diversity gain of diversity reception has been effectively ensured
About 5dB, about 2dB is improved than single-polarized antenna).
But, existing dual polarized antenna remains certain defect, such as：
1st, two unit horizontals are placed, the more difficult control of isolation；
2nd, metal base plate is larger, and each unit is easily caused directional diagram and points to skew not at the center of bottom plate；
3rd, out-of-roundness is difficult to control in directional diagram.
So as to which outdoor DAS (distributing antenna system) can not be applied to well.
The content of the invention
In order to solve drawbacks described above, the present invention provides a kind of dual-polarization omnidirectional antenna, employs not same polarization oscillator level
The form of placement, realizes horizontal and vertical dual polarization whereby.
A kind of above-mentioned dual-polarization omnidirectional antenna, including antenna house, support and coaxial connector, the top of the antenna house
Portion and bottom are provided with antenna end cap, the vertical plane radiation unit being internally provided with same axis of the antenna house
With horizontal plane radiation unit pcb board；
Wherein, the vertical plane radiation unit be made up of wideband conical transducer and including longitudinally disposed first module arm and
Second unit arm, the first module arm and second unit arm are fixed on the upper of horizontal plane radiation unit pcb board by support chip
Side；
The horizontal plane radiation unit pcb board is connected with matched transform pcb board, and the horizontal plane radiation unit pcb board leads to
Supporting pillar is crossed with the antenna end cap of antenna house bottom to be connected；
The coaxial connector be located at the outside of antenna house and by coaxial cable respectively with matched transform pcb board and vertical
Surface radiation unit is connected；The support is connected with the antenna end cap of antenna house bottom.
In the said equipment, the vertical plane radiation unit is extended shaping by metallic plate through mould, the first module arm and
The bottom of second unit arm this be to have perforate, the first module arm perforate passes through inner conductor, and described second is single
First arm perforate passes through coaxial cable outer conductor.
In the said equipment, the horizontal plane radiation unit pcb board is made up of three radiating element combinings, is welded by grafting
Matching change pcb board after impedance be transformed into 50 ohm.
In the said equipment, the first module arm and second unit arm are fixed on support chip by rivet or screw.
In the said equipment, the support chip is plastic support, and the rivet is plastic rivet, and the screw is plastic spiral
Nail.
In the said equipment, the supporting pillar is support plastic column.
In the said equipment, bonded between antenna house and the antenna end cap by silicone adhesive.
In the said equipment, the bottom of the antenna end cap is provided with two air-vents.
The advantages of the present invention are：The invention provides a kind of dual-polarization omnidirectional antenna, by by just
Frequency unit is set on the same axis so that total can be in a cylinder, so as to simplify structure；Simultaneously as
Low-and high-frequency is and coaxial in Different Plane, so antenna pattern circularity is good, and it is few to realize part, lightweight, to support member
It is required that low, with low cost, low passive intermodulation characteristic, working frequency range is wide, and antenna pattern circularity is good, and return loss is small, structure letter
It is single, the advantages of productibility is high；And finally possess：
1st, vertical plane is constituted by using the vertical plane tapered unit cell of wideband, three horizontal plane PCB shake molecular level
Face constitutes a dual-polarized omnidirectional antenna, realizes good broadband properties (698-960MHz, 1710-2700MHz), technically
As a result of grafting PCB as matching section, the area of horizontal plane can be made it is thinner so that whole antenna it is smaller；
The riveting copper piece welding used in technique or the technology of plating radiating element, it is ensured that ensure that electricity on the big point of current energy
The stability of contact, so as to ensure third order intermodulation index (698MHz-2700MHz<- 140dBc@2*2W) meet the requirement designed；
2nd, the utility model can make Antenna Operation in specified frequency by adjusting the taper of radiating element arm bottom and top
Band is interior；
3rd, the utility model can cause the voltage standing wave ratio of horizontal plane port to meet wanting for design by adjusting matching PCB
Ask.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of dual-polarization omnidirectional antenna in the present invention；
Fig. 2 is the internal structure schematic diagram of dual-polarization omnidirectional antenna in the present invention；
Fig. 3 is the partial enlarged drawing of reclaimed water planar radiating element pcb board of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is further described.Following examples are only
For clearly illustrating technical scheme, and it can not be limited the scope of the invention with this.
As depicted in figs. 1 and 2, this invention describes a kind of dual-polarization omnidirectional antenna, including antenna house 1, support 4 and same
Mandrel connector 3, and antenna end cap 2 is provided with the top and bottom of antenna house 1, lead between the antenna house 1 and antenna end cap 2
Cross silicone adhesive to be bonded, and be provided with the bottom of antenna end cap 2 two air-vents；Then set as the inside of antenna house 1
Have vertical plane radiation unit on the same axis and horizontal plane radiation unit PCB (Printed Circuit Board, i.e.,
Printed circuit board) plate 10；
Wherein, vertical plane radiation unit is made up of wideband conical transducer and including longitudinally disposed first module arm 5 and
Two unit arms 6, and first module arm 5 and second unit arm 6 are fixed on horizontal plane radiation unit pcb board 10 by support chip 7
Top；It is preferred that, vertical plane radiation unit in the utility model is extended shaping, and first module arm using metallic plate through mould
5 and second unit arm 6 bottom this be to have perforate, the perforate of first module arm passes through the inner wire of coaxial cable 9, and described second is single
First arm perforate passes through the outer conductor of coaxial cable 9.
Meanwhile, first module arm 5 and second unit arm 6 are fixed on support chip 7 by rivet 8 or screw；Also, in order to
Lightweight purpose is reached, support chip 7 employs plastic support, and rivet 8 employs plastic rivet, and screw employs plastics
Screw；The first module arm 5 and second unit arm 6 of vertical plane radiation unit are with metallic material of aluminum punching press in the utility model
Into, pad aluminium rivets the method for copper piece on unit, wherein riveting copper piece needs to ensure close riveted between the two, radiation is single
First arm closely links together with copper piece, and the realization of these techniques is to ensure the method that third order intermodulation index meets design requirement
One of.
As shown in figure 3, horizontal plane radiation unit pcb board 10 is connected with matched transform pcb board 11, and horizontal plane radiation unit
Pcb board 10 is connected by supporting pillar 12 with the antenna end cap 2 of the bottom of antenna house 1, and the supporting pillar 12 employs support plastic column；It is excellent
Choosing, horizontal plane radiation unit pcb board 10 is made up of three radiating element combinings, and the matching welded by grafting changes pcb board
Impedance is transformed into 50 ohm after 11.
In addition, above-mentioned coaxial connector 3 be located at antenna house 1 outside and by coaxial cable 9 respectively with matched transform
Pcb board 11 is connected with vertical plane radiation unit, and support 4 is connected with the antenna end cap 2 of the bottom of antenna house 1.
In actual use, the dual-polarization omnidirectional antenna in the utility model can cover SCDMA1900, CDMA800,
The communication pattern of the frequency ranges such as GSM900, GSM1800, DCS, PCS, WCDMA, WiFi, WiMax, LTE, with applied widely
Characteristic, be particularly suitable for use in DAS system.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. a kind of dual-polarization omnidirectional antenna, including antenna house, support and coaxial connector, the top and bottom of the antenna house
It is provided with antenna end cap, the vertical plane radiation unit being internally provided with same axis and horizontal plane of the antenna house
Radiating element pcb board；
Characterized in that, the vertical plane radiation unit is made up of wideband conical transducer and including longitudinally disposed first module arm
With second unit arm, the first module arm and second unit arm are fixed on horizontal plane radiation unit pcb board by support chip
Top；
The horizontal plane radiation unit pcb board is connected with matched transform pcb board, and the horizontal plane radiation unit pcb board passes through branch
Post is held with the antenna end cap of antenna house bottom to be connected；
The coaxial connector be located at antenna house outside and by coaxial cable respectively with matched transform pcb board and vertical plane spoke
Unit is penetrated to be connected；The support is connected with the antenna end cap of antenna house bottom.
2. a kind of dual-polarization omnidirectional antenna as claimed in claim 1, it is characterised in that the vertical plane radiation unit is by metal
Plate is extended shaping through mould, the bottom of the first module arm and second unit arm this be to have perforate, the first module arm
Perforate passes through inner conductor, and the second unit arm perforate passes through coaxial cable outer conductor.
3. a kind of dual-polarization omnidirectional antenna as claimed in claim 1, it is characterised in that the horizontal plane radiation unit pcb board
It is made up of three radiating element combinings, impedance is transformed into 50 ohm after the matching change pcb board that grafting is welded.
4. a kind of dual-polarization omnidirectional antenna as claimed in claim 1, it is characterised in that the first module arm and second unit
Arm is fixed on support chip by rivet or screw.
5. a kind of dual-polarization omnidirectional antenna as claimed in claim 4, it is characterised in that the support chip is plastic support,
The rivet is plastic rivet, and the screw is plastic screw.
6. a kind of dual-polarization omnidirectional antenna as claimed in claim 1, it is characterised in that the supporting pillar is support plastic column.
7. a kind of dual-polarization omnidirectional antenna as claimed in claim 1, it is characterised in that between antenna house and the antenna end cap
Bonded by silicone adhesive.
8. a kind of dual-polarization omnidirectional antenna as claimed in claim 1, it is characterised in that the bottom of the antenna end cap is provided with
Two air-vents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327409.5U CN206370495U (en) | 2016-12-06 | 2016-12-06 | Dual-polarization omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327409.5U CN206370495U (en) | 2016-12-06 | 2016-12-06 | Dual-polarization omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206370495U true CN206370495U (en) | 2017-08-01 |
Family
ID=59393423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621327409.5U Active CN206370495U (en) | 2016-12-06 | 2016-12-06 | Dual-polarization omnidirectional antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206370495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110410A (en) * | 2017-11-24 | 2018-06-01 | 广东盛路通信科技股份有限公司 | Dual-polarization omnidirectional antenna |
| CN112909582A (en) * | 2021-01-21 | 2021-06-04 | 杭州永谐科技有限公司上海分公司 | Broadband orthogonal dual-polarized omnidirectional antenna and method for terminal communication test |
-
2016
- 2016-12-06 CN CN201621327409.5U patent/CN206370495U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110410A (en) * | 2017-11-24 | 2018-06-01 | 广东盛路通信科技股份有限公司 | Dual-polarization omnidirectional antenna |
| CN112909582A (en) * | 2021-01-21 | 2021-06-04 | 杭州永谐科技有限公司上海分公司 | Broadband orthogonal dual-polarized omnidirectional antenna and method for terminal communication test |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201203 Zhangjiang High Tech Park, Pudong New Area, Shanghai 889 Patentee after: Shanghai Zhongxing Yi Lian Link Communications Inc Address before: 201203 Shanghai Pudong New Area Pudong Zhangjiang hi tech Park 889 Po Po Road Patentee before: Shanghai ZTE Technologies Co., Ltd. |