CN204130705U - A kind of broadband grid antenna array - Google Patents
A kind of broadband grid antenna array Download PDFInfo
- Publication number
- CN204130705U CN204130705U CN201420611454.8U CN201420611454U CN204130705U CN 204130705 U CN204130705 U CN 204130705U CN 201420611454 U CN201420611454 U CN 201420611454U CN 204130705 U CN204130705 U CN 204130705U
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- Prior art keywords
- radiating element
- antenna array
- grid antenna
- floor
- broadband
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- Expired - Lifetime
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- 230000005855 radiation Effects 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
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- Waveguide Aerials (AREA)
Abstract
The utility model discloses a kind of broadband grid antenna array, comprise reflection floor and setting be arranged on reflection floor on multiple radiating elements, the upper strata on described reflection floor is provided with many microstrip transmission lines connecting each radiating element, and described multiple radiating element surrounds grid antenna array on reflection floor; The tow sides of described each radiating element are all coated with radiation patch, and the tow sides bottom of each radiating element all erodes one section of radiation patch exposes media fraction, the left and right two ends metal clad sheet respectively of this media fraction exposed, described sheet metal is connected with radiation patch and microstrip transmission line respectively; The surrounding of described each radiating element has multiple via hole, the double-edged radiation patch of described multiple via hole penetrating radiation unit.Aerial array feeding network of the present utility model is simple, has the features such as bandwidth, handling ease, cost are low, can meet the requirement of wide-band communication system.
Description
Technical field
The utility model relates to a kind of aerial array, and especially a kind of broadband grid antenna array, belongs to wireless communication field.
Background technology
Antenna is used in wireless device launching and accepting electromagnetic equipment, and every electromagnetic wave that utilizes carrys out transmission of information, all relies on antenna to carry out work.Along with the development of the communication technology, the amount of information transmitted in radio communication gets more and more, also more and more higher to the requirement of antenna.Antenna is just towards the future development of broadband, intellectuality, low section, low cost.In the aerial array of current use, major part all needs to add that feeding network is to ensure the performance of antenna, but this return loss that not only can increase antenna also can increase the cost of antenna, makes the structure of antenna become complicated; And grid antenna is the high-gain aerial being applied in millimeter wave field, it utilizes the transmission line of 1/2nd wavelength to connect each radiating element, whole aerial array is made to only have an input port, feeder line is connected as a whole with antenna, but the bandwidth of this antenna is inadequate, cannot meet the bandwidth requirement of LTE frequency range.
According to investigations with understanding, disclosed prior art is as follows:
1) 2010, the people such as Xing Chen deliver in the article being entitled as " A Novel Wideband and Compact Microstrip Grid Array Antenna " on IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, author proposes a kind of micro-band raster antenna of compact conformation of broadband, corrugated transmission line makes compact conformation, radiation patch does the radiation bandwidth that ovalisation can increase antenna, and fractional bandwidth is 25%.
2) 2011, the people such as YueHui Cui deliver in the article being entitled as " Novel Dual-Broadband Planar Antenna and Its Array for 2G/3G/LTE Base Stations " and propose a kind of aerial array being applied to base station on IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, this antenna has low frequency and high frequency two emission bands, the band requirement of 2G/3G/LTE can be met, but this aerial array needs complicated feeding network, adds the processing cost of antenna.
Utility model content
The purpose of this utility model is the defect in order to solve above-mentioned prior art, provide a kind of broadband grid antenna array, the feeding network of this aerial array is simple, has the features such as bandwidth, handling ease, cost are low, can meet the requirement of wide-band communication system.
The purpose of this utility model can reach by taking following technical scheme:
A kind of broadband grid antenna array, comprise reflection floor and setting be arranged on reflection floor on multiple radiating elements, the upper strata on described reflection floor is provided with many microstrip transmission lines connecting each radiating element, and described multiple radiating element surrounds grid antenna array on reflection floor; The tow sides of described each radiating element are all coated with radiation patch, and the tow sides bottom of each radiating element all erodes one section of radiation patch exposes media fraction, the left and right two ends metal clad sheet respectively of this media fraction exposed, described sheet metal is connected with radiation patch and microstrip transmission line respectively; The surrounding of described each radiating element has multiple via hole, the double-edged radiation patch of described multiple via hole penetrating radiation unit.
As a kind of embodiment, described aerial array also comprises coaxial line, the lower floor on described reflection floor is metal floor, and the outer conductor of described coaxial line is connected with metal floor, is connected after the medium of inner wire through reflection floor with the sheet metal of one of them radiating element.
As a kind of embodiment, described multiple radiating element comprises the radiating element of longitudinal arrangement and transversely arranged radiating element.
As a kind of embodiment, the radiating element of described longitudinal arrangement has row or multiple row, and described transversely arranged radiating element has a line or multirow, and the columns of the radiating element of longitudinal arrangement is identical with the line number of transversely arranged radiating element.
As a kind of embodiment, the length of described every bar microstrip transmission line corresponding to grid antenna array center frequency wavelength 1/2nd.
As a kind of embodiment, multiple via holes of described each radiating element are evenly distributed on the surrounding of radiating element.
As a kind of embodiment, the shape of described reflection floor and multiple radiating element is rectangle.
The utility model has following beneficial effect relative to prior art:
1, aerial array of the present utility model is erect and is arranged multiple radiating element on one piece of reflection floor, multiple radiating element is made to surround grid antenna array, energy of electromagnetic field is avoided to be stored between radiating element and reflection floor like this, add the radiation bandwidth of antenna, solve the problem that the conventional grid beamwidth of antenna is inadequate.
2, aerial array of the present utility model by coaxial line by energy feed-in radiating element, again by other radiating element of microstrip transmission line feed-in, whole feeding network is simple, overcomes the problem of traditional antenna feeding network complexity, can save the cost of manufacture of antenna.
3, aerial array of the present utility model has more simple feeding network compared with conventional aerial array, whole aerial array is all arranged on one piece of reflection floor, handling ease, cost is low, the LTE frequency range of 1.71GHz ~ 2.69GHz can be applied to, the requirement of wide-band communication system can be met.
Accompanying drawing explanation
Fig. 1 is the stereogram of the broadband grid antenna array of the utility model embodiment 1.
Fig. 2 is the front view of the broadband grid antenna array of the utility model embodiment 1.
Fig. 3 is the left view of the broadband grid antenna array of the utility model embodiment 1.
Fig. 4 is the vertical view of the broadband grid antenna array of the utility model embodiment 1.
Fig. 5 is the S parameter simulation result figure of the broadband grid antenna array of the utility model embodiment 1.
Fig. 6 a is the H surface radiation directional diagram of broadband grid antenna array at 2GHz of the utility model embodiment 1.
Fig. 6 b is the H surface radiation directional diagram of broadband grid antenna array at 2.2GHz of the utility model embodiment 1.
Fig. 6 c is the H surface radiation directional diagram of broadband grid antenna array at 2.4GHz of the utility model embodiment 1
Fig. 7 is the stereogram of the broadband grid antenna array of the utility model embodiment 2.
Fig. 8 is the stereogram of the broadband grid antenna array of the utility model embodiment 3.
Wherein, 1-reflects floor, 2-coaxial line, 3-radiating element, 4-microstrip transmission line, 5-radiation patch, 6-media fraction, 7-sheet metal, 8-via hole.
Embodiment
Embodiment 1:
As shown in Figure 1 to 4, the broadband grid antenna array of the present embodiment comprises reflection floor 1, coaxial line 2 and erects four radiating elements 3 be arranged on reflection floor 1, reflection floor 1 and four radiating elements 3 all adopt pcb board (dielectric permittivity is 2.55), and shape is rectangle; The upper strata on described reflection floor 1 is provided with four microstrip transmission lines 4 connecting each radiating element 3, and lower floor is metal floor; Two radiating element 3 longitudinal arrangements are had in described four radiating elements 3, two radiating elements 3 are transversely arranged, and (that is the radiating element 3 of longitudinal arrangement has row, transversely arranged radiating element 3 has a line), jointly on reflection floor 1, surround grid antenna array; The length of described every bar microstrip transmission line 4 corresponding to grid antenna array center frequency wavelength 1/2nd.
The tow sides of described each radiating element 3 are all coated with radiation patch 5, and the tow sides bottom of each radiating element 3 all erodes one section of radiation patch 5 exposes media fraction 6, and this design is mainly used to regulate the distance between antenna and reflection floor; The left and right two ends metal clad sheet 7 (tow sides respectively of the media fraction 6 that this exposes, have four pieces, sheet metal 7 hereinafter referred to as left end is left sheet metal 7, the sheet metal 7 of right-hand member is right sheet metal 7), the right sheet metal 7 of the radiating element 3 on the grid antenna array left side is connected with radiation patch 5 and microstrip transmission line 4 respectively; The left sheet metal 7 of the radiating element 3 on the right of grid antenna array is connected with radiation patch 5 and microstrip transmission line 4 respectively, and the left sheet metal 7 of the radiating element 3 of grid antenna array front and back is connected with radiation patch 5 and microstrip transmission line 4 all respectively with right sheet metal 7; The surrounding of described each radiating element 3 has multiple equally distributed via hole 8, and the double-edged radiation patch 5 of described multiple via hole 8 penetrating radiation unit 3, makes double-edged radiation patch 5 link together; The outer conductor of described coaxial line 2 is connected with metal floor, is connected after the medium of inner wire through reflection floor 1 with the right sheet metal 7 of the radiating element 3 on the grid antenna array left side.
The operation principle of the broadband grid antenna array of the present embodiment is: energy is first fed in the radiating element 3 on the grid antenna array left side by coaxial line 2, then be fed in other radiating element 3 by microstrip transmission line 4, due to microstrip transmission line 4 length corresponding to grid antenna array center frequency wavelength 1/2nd, so the sense of current of each radiating element 3 is the same near centre frequency, with traditional grid antenna unlike, radiating element 3 erects by the present embodiment, energy of electromagnetic field is avoided to be stored between radiating element 3 and reflection floor 1 like this, add the radiation bandwidth of antenna, electric current can have a lot of path on radiating element 3, and different current paths can produce radiation at different Frequency points.
By calculating and electromagnetic-field simulation, carry out verifying emulation to the broadband grid antenna array of the present embodiment, as shown in Figure 5, the curve of the S parameter simulation result of this antenna in 1.4 ~ 2.7Ghz frequency range is given, S1,1 curve refers to input return loss (reflection coefficient), can see, in the LTE frequency range of 1.71GHz ~ 2.41GHz, S1, the value of 1 curve is less than-10dB, can meet the requirement of broadband high-speed wireless telecommunication system.As shown in Fig. 6 a ~ 6c, (wherein Fig. 6 a is the H surface radiation directional diagram when 2GHz to the H surface radiation directional diagram of the broadband grid antenna array of the present embodiment, Fig. 6 b is the H surface radiation directional diagram when 2.2GHz, Fig. 6 c is the H surface radiation directional diagram when 2.4GHz), can see, H surface radiation directional diagram keeps stable in wider frequency range, and greatest irradiation point is all towards Z axis (axis perpendicular to reflection floor 1) positive direction.
Embodiment 2:
As shown in Figure 7, on the architecture basics of embodiment 1, carry out extending transversely, reflection floor 1 is formed the grid antenna array of ten radiating elements 3, and can see that the radiating element 3 of longitudinal arrangement has three row, transversely arranged radiating element 3 has three row.
Embodiment 3:
As shown in Figure 8, on the architecture basics of embodiment 1, carry out horizontal and vertical expansion simultaneously, reflection floor 1 is formed the grid antenna array of 16 radiating elements 3, can see that the radiating element 3 of longitudinal arrangement has five row, transversely arranged radiating element 3 has the five-element.
In above-described embodiment, the pcb board that described reflecting plate and each radiating element adopt can be made up of any one dielectric material of FR4, polyimides, polytetrafluoroethylglass glass cloth and common burning porcelain; The metal that described metal floor, radiation patch and sheet metal adopt is any one of aluminium, iron, tin, copper, silver, gold and platinum, or is any one alloy of aluminium, iron, tin, copper, silver, gold and platinum.
The above; be only the utility model patent preferred embodiment; but the protection range of the utility model patent is not limited thereto; anyly be familiar with those skilled in the art in the scope disclosed in the utility model patent; be equal to according to the technical scheme of the utility model patent and utility model design thereof and replaced or change, all belonged to the protection range of the utility model patent.
Claims (7)
1. a broadband grid antenna array, it is characterized in that: comprise reflection floor and setting be arranged on reflection floor on multiple radiating elements, the upper strata on described reflection floor is provided with many microstrip transmission lines connecting each radiating element, and described multiple radiating element surrounds grid antenna array on reflection floor; The tow sides of described each radiating element are all coated with radiation patch, and the tow sides bottom of each radiating element all erodes one section of radiation patch exposes media fraction, the left and right two ends metal clad sheet respectively of this media fraction exposed, described sheet metal is connected with radiation patch and microstrip transmission line respectively; The surrounding of described each radiating element has multiple via hole, the double-edged radiation patch of described multiple via hole penetrating radiation unit.
2. a kind of broadband according to claim 1 grid antenna array, it is characterized in that: described aerial array also comprises coaxial line, the lower floor on described reflection floor is metal floor, the outer conductor of described coaxial line is connected with metal floor, is connected after the medium of inner wire through reflection floor with the sheet metal of one of them radiating element.
3. a kind of broadband according to claim 1 grid antenna array, is characterized in that: described multiple radiating element comprises the radiating element of longitudinal arrangement and transversely arranged radiating element.
4. a kind of broadband according to claim 3 grid antenna array, it is characterized in that: the radiating element of described longitudinal arrangement has row or multiple row, described transversely arranged radiating element has a line or multirow, and the columns of the radiating element of longitudinal arrangement is identical with the line number of transversely arranged radiating element.
5. a kind of broadband according to claim 1 grid antenna array, is characterized in that: the length of described every bar microstrip transmission line corresponding to grid antenna array center frequency wavelength 1/2nd.
6. a kind of broadband according to claim 1 grid antenna array, is characterized in that: multiple via holes of described each radiating element are evenly distributed on the surrounding of radiating element.
7. a kind of broadband grid antenna array according to any one of claim 1-6, is characterized in that: the shape of described reflection floor and multiple radiating element is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420611454.8U CN204130705U (en) | 2014-10-21 | 2014-10-21 | A kind of broadband grid antenna array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420611454.8U CN204130705U (en) | 2014-10-21 | 2014-10-21 | A kind of broadband grid antenna array |
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| Publication Number | Publication Date |
|---|---|
| CN204130705U true CN204130705U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420611454.8U Expired - Lifetime CN204130705U (en) | 2014-10-21 | 2014-10-21 | A kind of broadband grid antenna array |
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| Country | Link |
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| CN (1) | CN204130705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319491A (en) * | 2014-10-21 | 2015-01-28 | 华南理工大学 | Broadband grid antenna array |
| CN104319491B (en) * | 2014-10-21 | 2017-01-04 | 华南理工大学 | A kind of broadband grid antenna array |
-
2014
- 2014-10-21 CN CN201420611454.8U patent/CN204130705U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319491A (en) * | 2014-10-21 | 2015-01-28 | 华南理工大学 | Broadband grid antenna array |
| CN104319491B (en) * | 2014-10-21 | 2017-01-04 | 华南理工大学 | A kind of broadband grid antenna array |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |