CN201946738U - Broad band dual-polarization antenna unit - Google Patents
Broad band dual-polarization antenna unit Download PDFInfo
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- CN201946738U CN201946738U CN2010206508289U CN201020650828U CN201946738U CN 201946738 U CN201946738 U CN 201946738U CN 2010206508289 U CN2010206508289 U CN 2010206508289U CN 201020650828 U CN201020650828 U CN 201020650828U CN 201946738 U CN201946738 U CN 201946738U
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Abstract
The utility model discloses a broad band dual-polarization antenna unit, which is used for realizing a broader frequency band characteristic. The antenna unit is a radiating unit which comprises a reflecting plate, a main radiating body, an upper insulation block, a lower insulation block and a balance feeding device, wherein the main radiating body comprises support bodies and radiating pieces. Four radiating pieces are integrated with the support bodies into a whole with a 90-degree angle between every two radiating pieces, the outline of each radiating piece is in the shape of a fan with a 90-degree angle, each radiating piece is provided with a hollow structure and a load section used for broadening bandwidth and increasing polarization purity, and each gap between adjacent radiating pieces is less than 0.1 wavelength. The radiating unit adopts coupling balance feeding, the bottoms of the four support bodies are mutually short circuited in an integrated design, and are fixed on the reflecting plate. The antenna unit is provided with impedance width over 45% and has the advantages of being small in size, simple in structure, having fewer assemblies, being easy to assemble and produce, being low in cost and the like.
Description
[technical field]
The utility model has related to the antenna of mobile communication base station field, relates in particular to a kind of wideband dual polarized antenna element.
[background technology]
Follow reaching its maturity of 3G industrial chain, arrange net and commercialization since 2008, the 3 third-generation mobile communication system (3G) scales of entering at home.Mobile communication is being brought into play more and more important effect in daily life, by in October, 2010, China's mobile communication subscriber sum reaches 8.05 hundred million families, and wherein the 3G subscription number reaches 2,520 ten thousand families, and the antenna for base station that comes into operation surpasses 2,000,000 pairs.Along with the continuous increase of various mobile communication businesses and kind, also more and more higher to the requirement of message transmission rate, the working frequency range of corresponding various communication standards is also in continuous expansion.The operating frequency of smart antenna is 1880-1920MHz in the TD-SCDMA/LTE network, 2010-2025MHz, 2300-2400MHz, 2500-2690MHz.The communication frequency of DCS is 1710-1880MHz.The communication frequency of PCS is 1850-1990MHz.The communication frequency of UMTS is 1920-2170MHz.The part communications band of WiMax (Worldwide Interoperability forMicrowave Access, promptly worldwide interoperability for microwave inserts) is 2300-2700MHz.Therefore, now proposed to design a market demand of taking into account the broad-band antenna of above-mentioned standard.
The relative band width of 1710-2400MHz surpasses 33%, and the relative band width of 1710-2700MHz is then near 45%, and existing dual-polarized antenna vibrator generally all is difficult to satisfy, and the bandwidth of the antenna array of Zu Chenging also is restricted thus.Therefore heterogeneous networks needs plurality of antennas support.The design of existing broadband oscillator is described broadband oscillators such as ZL200820122837.3, CN 201174423Y, CN 101465475A as the patent No., and its relative bandwidth has only about 33%.And its complex structure, the technological requirement strictness, cost is higher, has reduced the competitiveness of product in market.
[summary of the invention]
The utility model provides a kind of wideband dual polarized antenna element that is applicable to mobile communication system, is used to realize the impedance and the gain characteristic of broad.Its relative bandwidth is near 45%, and implementation structure is simple, and is easy to process, with low cost.
A kind of wideband dual polarized antenna element, comprise radiant body and balance feeder equipment, this balanced feeding device is to the radiant body feed, it is the excitation radiation body, this radiant body is made up of four radiation fins, described four radiation fins are symmetry and omnidirectional distribution in twos, form the symmetrical radiation combination of two pairs of quadratures, this balanced feeding device comprises excitation sheet metal and balance Ba Lun, this balance Ba Lun constitutes the supporter of each radiation fin simultaneously, described radiation fin outline is 90 degree fan shapes, each radiation fin be provided with engraved structure and with the loaded segment of this engraved structure edge integrated molding, gap between the adjacent radiation sheet is less than 0.1 wavelength, and radiation fin and supporter become one, and is 90 degree angles.
As the improvement of technique scheme, further technical scheme of the present utility model is as follows:
Above-mentioned excitation sheet metal comprises the first excitation sheet metal and the second excitation sheet metal, and this excitation sheet metal is the metal good conductor.
Above-mentioned engraved structure and with the loaded segment of this engraved structure edge integrated molding be a Combination Design.
The above-mentioned curved or polygon of engraved structure edge contour.
Above-mentioned loaded segment be one with the tetragonal body or the cone of engraved structure edge integrated molding.
The length of above-mentioned loaded segment only limits to engraved structure inside, and end open circuit.
Have on each radiation fin of radiating element described in the utility model engraved structure and can the broadening bandwidth, improve the loaded segment of polarization purity.Have the impedance bandwidth above 45%, and it is little to have overall dimension, simple in structure, building block is few, and is easy to assembly, is easy to produce, the beneficial effect that waits with low cost.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation after the utility model assembling;
Fig. 3 is the vertical view of the utility model radiant body;
Fig. 4 is the vertical view of the utility model radiation fin.
[embodiment]
Below in conjunction with drawings and the specific embodiments, the utility model is further described, embodiment described herein only is used to explain the utility model, and is not used in qualification the utility model.
As Fig. 1, wideband dual polarized antenna element in the present embodiment comprises reflecting plate 01, support column 02, loaded segment 03, radiation fin 04, the first excitation sheet metal 05, the second excitation sheet metal 06, first collets, 07, the second collets 08, firm banking 09 constitutes, four radiation fins 03 are symmetry and quadrature in twos, forms the radiant body of present embodiment with supporter 02.This radiant body dielectric substance is an aluminium alloy.
As Fig. 4, the profile of radiation fin 04 is 90 degree fan shapes, and fan-shaped two limit a, b length toward the outer side is about 1/4 wavelength, a loaded segment that is rectangle 03 is arranged on the radiation fin 04, about 0.1 wavelength of length, wherein a, b, c length become certain specific proportions, and its ratio value is about 3: 3: 1.As shown in Figure 3, the radiation fin of per two symmetries is formed a half-wave dipole, and two half-wave dipoles are placed in the mode of quadrature, and four radiation fins are symmetry and omnidirectional distribution in twos.Gap between two adjacent radiation fins is less than 0.1 wavelength.
Because the excitation sheet metal is not connected with main radiator in the present embodiment, in order to make the excitation sheet metal be fixed on supporter inside reliably, use first collets 07 and second collets 08 in the present embodiment, the first excitation sheet metal 05 and the second excitation sheet metal 06 are combined into a complete feeder equipment, be built in the supporter, and isolated with supporter.As shown in Figure 1, first collets 07 and second collets 08 not only play fixation, have guaranteed simultaneously between the first excitation sheet metal 05 and the second excitation sheet metal 06.
In the present embodiment, the actual measurement example of a wideband dual polarized antenna element is provided, aluminium alloy reflecting plate 01 thickness that adopts is about 1.5mm, length and width are about 200mm * 120mm, the height of the supporter 02 that adopts is about 30mm, the limit length and width of fan beam sheet is about 30mm, and wherein the length 10 of loaded segment is about 10mm.This radiating element is placed in the microwave dark room, use network analyzer that it is surveyed, resulting voltage standing wave(VSW) is such as Fig. 6, and shown in 7, as seen from the figure, in VSWR≤1.4 o'clock, impedance bandwidth is near 45%.
The foregoing description is this patent preferred embodiment; be not to be used for limiting practical range of the present utility model; allly anyly do not deviate from that the equalization that principle of the present utility model does changes, combination, substitute etc., all belong within the utility model claim scope required for protection.
Claims (7)
1. wideband dual polarized antenna element, comprise radiant body and balance feeder equipment, this balanced feeding device by the electromagnetic coupled effect to the radiant body feed, be the excitation radiation body, this radiant body is made up of four radiation fins, and described four radiation fins are symmetry and omnidirectional distribution in twos, form the symmetrical radiation combination of two pairs of quadratures, this balanced feeding device comprises excitation sheet metal and balance Ba Lun, and this balance Ba Lun constitutes the supporter of each radiation fin simultaneously, it is characterized in that:
Described radiation fin outline is 90 degree fan shapes, each radiation fin be provided with engraved structure and with the loaded segment of this engraved structure edge integrated molding, gap between the adjacent radiation sheet is less than 0.1 wavelength, and radiation fin and supporter become one, and is 90 degree angles.
2. a kind of wideband dual polarized antenna element according to claim 1 is characterized in that: described excitation sheet metal comprises the first excitation sheet metal and the second excitation sheet metal, and this excitation sheet metal is the metal good conductor.
3. a kind of wideband dual polarized antenna element according to claim 1 is characterized in that: described engraved structure and with the loaded segment of this engraved structure edge integrated molding be a Combination Design.
4. according to claim 1 or 3 described a kind of wideband dual polarized antenna elements, it is characterized in that: in the Combination Design of described engraved structure and loaded segment, the curved or polygon of this engraved structure edge contour.
5. according to claim 1 or 3 described a kind of wideband dual polarized antenna elements, it is characterized in that: described loaded segment be one with the tetragonal body or the cone of engraved structure edge integrated molding.
6. a kind of wideband dual polarized antenna element according to claim 1, it is characterized in that: the length of described loaded segment only limits to engraved structure inside, and end open circuit.
7. a kind of wideband dual polarized antenna element according to claim 5, it is characterized in that: the length of described loaded segment only limits to engraved structure inside, and end open circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206508289U CN201946738U (en) | 2010-12-03 | 2010-12-03 | Broad band dual-polarization antenna unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206508289U CN201946738U (en) | 2010-12-03 | 2010-12-03 | Broad band dual-polarization antenna unit |
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| Publication Number | Publication Date |
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| CN201946738U true CN201946738U (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206508289U Expired - Fee Related CN201946738U (en) | 2010-12-03 | 2010-12-03 | Broad band dual-polarization antenna unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016127893A1 (en) * | 2015-02-13 | 2016-08-18 | 上海贝尔股份有限公司 | Radiation unit and bipolar antenna |
| CN106569197A (en) * | 2016-11-03 | 2017-04-19 | 深圳量旌科技有限公司 | Laser radar in disassembling distribution |
| CN108258419A (en) * | 2018-01-30 | 2018-07-06 | 深圳大学 | A kind of continuously adjustable coaxial feed of impedance dynamic based on graphene and two-dimensional semiconductor |
| CN109687114A (en) * | 2019-01-23 | 2019-04-26 | 广东通宇通讯股份有限公司 | A kind of communication antenna and its dual polarization broadband radiating element |
-
2010
- 2010-12-03 CN CN2010206508289U patent/CN201946738U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016127893A1 (en) * | 2015-02-13 | 2016-08-18 | 上海贝尔股份有限公司 | Radiation unit and bipolar antenna |
| CN106569197A (en) * | 2016-11-03 | 2017-04-19 | 深圳量旌科技有限公司 | Laser radar in disassembling distribution |
| CN106569197B (en) * | 2016-11-03 | 2019-07-19 | 深圳量旌科技有限公司 | A kind of laser radar of decomposable distribution |
| CN108258419A (en) * | 2018-01-30 | 2018-07-06 | 深圳大学 | A kind of continuously adjustable coaxial feed of impedance dynamic based on graphene and two-dimensional semiconductor |
| CN108258419B (en) * | 2018-01-30 | 2024-01-12 | 深圳大学 | Impedance dynamic continuously adjustable coaxial feed structure based on graphene and two-dimensional semiconductor |
| CN109687114A (en) * | 2019-01-23 | 2019-04-26 | 广东通宇通讯股份有限公司 | A kind of communication antenna and its dual polarization broadband radiating element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20141203 |
|
| EXPY | Termination of patent right or utility model |