CN106252850A - Single polarization indoor ceiling aerial - Google Patents
Single polarization indoor ceiling aerial Download PDFInfo
- Publication number
- CN106252850A CN106252850A CN201610808182.4A CN201610808182A CN106252850A CN 106252850 A CN106252850 A CN 106252850A CN 201610808182 A CN201610808182 A CN 201610808182A CN 106252850 A CN106252850 A CN 106252850A
- Authority
- CN
- China
- Prior art keywords
- base plate
- single polarization
- indoor ceiling
- radius
- feed connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Aerials With Secondary Devices (AREA)
Abstract
The present invention proposes a kind of single polarization indoor ceiling aerial, mainly solves existing single polarization indoor ceiling aerial third order intermodulation poor performance and the big problem of processing and manufacturing difficulty；It includes radiating doublet (1), feed connector (2), base plate (3) and connects sheet (4)；Wherein radiating doublet (1) includes line part (11), cylindrical portion (12) and conus portion (13), the top of this conus portion (13) is planar structure, and this radiating doublet is positioned at the top of feed connector (2)；Feed connector (2) employing frustum cone structure, and it is positioned at the top of base plate (3), and separated by round insulation pad (5)；Base plate (3) uses disc structure, and is positioned at the lower section connecting sheet (4), and is separated by rectangle insulation spacer (6), then is of coupled connections with being connected sheet by this base plate by plastic rivet.The present invention is prone to processing, and third order intermodulation is preferable, can cover existing mobile communication frequency range.
Description
Technical field
The invention belongs to antenna technical field, particularly to a kind of single polarization indoor ceiling aerial, can be used for in-door covering
System, as indoor distribution communication antenna.
Background technology
Along with the development of antenna technology, in addition to for the index such as voltage standing wave ratio, gain, people are for antenna three
The requirement of rank intermodulation is more and more higher.When two or more interference signals are loaded into receiver simultaneously, non-due to device
Linearly, the inter-modulated signal product of the two or multiple signal can be produced, and sometimes equal or close in the frequency of useful signal
Rate and fall in the reception frequency range of native system, thus antenna performance is produced serious influence, wherein with third order intermodulation
Impact maximum.
Ceiling mount antenna in indoor distributed system antenna, can be divided into single polarization all-around top absorbing antenna and bipolar according to purposes
Change all-around top absorbing antenna.Wherein single polarization all-around top absorbing antenna generally uses 90 degree of polarization, i.e. radiating elements of vertical, can
Cover for meeting room, Office Area, underground parking, corridor lamp flat bed.Bipolar omni-directional ceiling antenna is in single polarization omnidirectional
On the basis of ceiling mount antenna, increase horizontal polarization radiating element, to reach the purpose of 0 degree and 90 degree two kinds of polarization modes, not only
May be used for diversity, it may also be used for LTE MIMO.
The most conventional single polarization indoor ceiling aerial, general structure is complicated, it is difficult to processing, and various piece material is even
After connecing, the third order intermodulation for antenna has a major impact.And existing improved method, mainly made by screw or rivet
Third order intermodulation is more closely improved in each coupling part, which not only adds the difficulty of processing, it is also difficult to ensure third order intermodulation
The stability of index.Such as Chinese utility model patent, Authorization Notice No. is CN203103498U, and entitled " a kind of radiation is single
Unit and wideband height intermodulation all-around top absorbing antenna ", this utility model patent discloses a kind of high intermodulation all-around top absorbing antenna, this antenna
Including radiating element, reflecting plate, connection sheet and electrical feed connection, its overall structure is as shown in Figure 1.Will by screw or rivet
Electrical feed connection and reflecting plate connection are fixed up, and connect to get up also by screw or rivet interlacement between sheet and reflecting plate.
Use such structure not only to waste time and energy, and the tightness of junction directly affects the third order intermodulation of antenna.Another
Aspect, radiating element uses traditional conical transducer, and its structure is as in figure 2 it is shown, comprise arc sections, cylindrical portion the most successively
And conus portion, it is provided with connecting portion outwardly on the top of conus portion.In actual production, owing to this connecting portion needs 2 step works
Sequence just can machine, and adds the manufacture difficulty of antenna.
Summary of the invention
It is an object of the invention to propose the single polarization indoor ceiling aerial of a kind of simple in construction, with by simplifying feed knot
Structure, simplify conical transducer and use the novel version being of coupled connections, solving existing single polarization indoor ceiling aerial three rank mutual
Adjust poor performance and the big problem of processing and manufacturing difficulty.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of single polarization indoor ceiling aerial, including radiating doublet 1, feed connector 2, base plate 3 and connection sheet 4, it is special
Levy and be:
Described radiating doublet 1, including line part 11, cylindrical portion 12 and conus portion 13, the top of this conus portion 13 is plane
Structure, it is positioned at the top of feed connector 2；
Described feed connector 2, employing frustum cone structure, and it is positioned at the top of base plate 3, and by 5 points of round insulation pad
Every；
Described base plate 3, is used disc structure, and is positioned at the lower section connecting sheet 4, separated by rectangle insulation spacer 6, and
It is of coupled connections through plastic rivet.
As preferably, described connection sheet 4, use 3 coupling ties compositions being spaced apart 120 °, each is of coupled connections
Part is made up of L-type minor matters 41 and the cuboid 42 being connected with its end, and L-type minor matters 41 are short-circuit with the cylindrical portion 12 of radiating doublet
Connecting, cuboid 42 is of coupled connections with base plate 3 by rectangle insulation spacer 6.
As preferably, the height H5 of each L-type minor matters 41 described is 20mm～32mm, and length L5 is 26mm～38mm,
Length A5 of cuboid 42 is 10mm～22mm, and width B5 is 5mm～15mm.
As preferably, the height H1 of described radiating doublet 1 is 50mm～62mm, and the radius R11 of cylindrical portion 12 is 37mm
～49mm, the radius R12 of line part 11 are 32mm～46mm, the radius R13 on conus portion 13 top is 2mm～7mm.
As preferably, the height H2 of described feed connector 2 is 2mm～6mm, and the radius R21 of upper surface is 3mm～9mm,
The radius R22 of lower surface is 5mm～15mm.
As preferably, the radius R3 of described base plate 3 is 75mm～95mm.
As preferably, the radius R4 of described round insulation pad 5 is 5mm～20mm,
As preferably, length A4 of described rectangle insulation spacer 6 is 10mm～25mm, and width B4 is 5mm～20mm.
The present invention compared with prior art, has the advantage that
1, the radiating doublet of the present invention is due to its top employing linear structure, and the top of conus portion uses planar structure, keeps away
Exempt from connecting portion outwardly, thus be beneficial to processing.
2, use insulating trip to separate between connection sheet and the base plate in the present invention, coupled together by plastic rivet, not only
Improve the third order intermodulation characteristic of antenna, and considerably reduce the degree of the being completely embedded third order intermodulation performance shadow for antenna
Ring.
3, owing to using insulating trip to separate between the feed connector in the present invention and base plate, thus the three of antenna are improved
Rank intermodulation characteristic.
Accompanying drawing explanation
Fig. 1 is existing single polarization indoor ceiling aerial structural representation；
Fig. 2 is existing radiating doublet structural representation；
Fig. 3 is the overall structure schematic diagram of the present invention；
Fig. 4 is the STRUCTURE DECOMPOSITION schematic diagram of the present invention；
Fig. 5 is the stationary wave characteristic analogous diagram of the embodiment of the present invention 1；
Fig. 6 is the gain characteristic analogous diagram of the embodiment of the present invention 1；
Fig. 7 is that the embodiment of the present invention 1 is respectively at the antenna pattern of 0.8GHz, 0.96GHz horizontal plane emulation；
Fig. 8 is that the embodiment of the present invention 1 is respectively at the antenna pattern of 1.7GHz, 2.2GHz, 2.7GHz horizontal plane emulation.
Detailed description of the invention
With specific embodiment, structure and the effect of the present invention are further described below in conjunction with the accompanying drawings.
With reference to Fig. 3 and Fig. 4, the single polarization indoor ceiling aerial of the present invention, including radiating doublet 1, feed connector 2, the end
Plate 3, connection sheet 4, round insulation pad 5 and rectangle insulation spacer 6.Wherein:
Radiating doublet 1, including line part 11, cylindrical portion 12 and conus portion 13, the top of this conus portion 13 uses planar junction
Structure, and it is positioned at the top of feed connector 2；
Feed connector 2, uses frustum cone structure, and it is positioned at the top of base plate 3, and is separated by round insulation pad 5；
Base plate 3, uses disc structure, and it is positioned at the lower section connecting sheet 4, is separated by rectangle insulation spacer 6, and through moulding
Material rivet is of coupled connections；
Connecting sheet 4, use 3 coupling ties compositions being spaced apart 120 °, each coupling ties is by L-type minor matters 41
With the cuboid 42 being connected with its end forms, these L-type minor matters 41 are connected with cylindrical portion 12 short circuit of radiating doublet, cuboid 42
It is of coupled connections with base plate 3 by rectangle insulation spacer 6.
By changing radiating doublet 1, feed connector 2, base plate 3, the relevant parameter of connection sheet 4, it is possible to achieve antenna pair
In the covering of different frequency range, three kinds of embodiments given below:
Embodiment 1, can cover the ceiling sky, single polarization indoor of 800MHz～960MHz and 1700MHz～2700MHz frequency range
Line.
This antenna structure includes radiating doublet 1, feed connector 2, base plate 3, connects sheet 4, round insulation pad 5 and rectangular
Shape insulation spacer 6.
Radiating doublet 1 uses aluminum plate material, and it is shaped as the one being made up of line part 11, cylindrical portion 12 and conus portion 13
Structure, tip radius R13 of this conus portion 13 is 3.5mm, and cylindrical portion 12 radius R11 is 43mm, and line part 11 radius R12 is
38mm, and the top of conus portion 13 is positioned at the top of feed connector 2, the overall height H 1 of this radiating doublet is 56mm.
Feed connector 2 uses aluminum plate material, and it is shaped as frustum cone structure, and the height H2 of round platform is 4mm, round platform upper surface
Radius R21 is 6mm, and lower surface radius R22 is 10mm.Whole round platform is positioned at the top of base plate 3, and by round insulation pad 5
Separate.
Base plate 3 uses aluminum plate material, and it is shaped as disc structure, and the radius R3 of disk is 85mm, and whole disk is positioned at even
The lower section of contact pin 4, is separated by rectangle insulation spacer 6, and is of coupled connections through plastic rivet.
Connect sheet 4 and use aluminum plate material, be made up of 3 coupling ties being spaced apart 120 °, each coupling ties
Being made up of L-type minor matters 41 and the cuboid 42 being connected with its end, these L-type minor matters 41 connect with cylindrical portion 12 short circuit of radiating doublet
Connecing, cuboid 42 is of coupled connections with base plate 3 by rectangle insulation spacer 6.The height H5 of L-type minor matters 41 is 26mm, length L5
For 32mm, length A5 of cuboid 42 is 16mm, and width B5 is 10mm.
Insulation spacer 5 and 6 uses mylar polyester pricker dimension nonwoven fabric DMD material.Round insulation pad 5 radius R4 is
15mm, rectangle insulation spacer 6 length A4 is 20mm, and width B4 is 15mm.
Embodiment 2, can cover the ceiling sky, single polarization indoor of 880MHz～960MHz and 1710MHz～2700MHz frequency range
Line.
The structure of the present embodiment is same as in Example 1, and its parameter change is as follows:
The total height H 1 of radiating doublet 1 is 50mm, and cylindrical portion 12 radius R11 is 37mm, and line part 11 radius R12 is
32mm, conus portion 13 tip radius R13 is 2mm；
The height H2 of feed connector 2 is 2mm, and upper surface radius R21 is 3mm, and lower surface radius R22 is 5mm；
The radius R3 of the 3 of base plate is 75mm；
Connecting in sheet 4, the height H5 of L-type minor matters 41 is 20mm, and length L5 is 26mm, and length A5 of cuboid 42 is
10mm, width B5 are 5mm；
The radius R4 of round insulation pad 5 is 5mm；
Length A4 of rectangle insulation spacer 6 is 10mm, and width B4 is 5mm.
Embodiment 3, can cover the ceiling sky, single polarization indoor of 720MHz～960MHz and 1700MHz～2500MHz frequency range
Line.
The structure of the present embodiment is same as in Example 1, and its parameter change is as follows:
The total height H 1 of radiating doublet 1 is 62mm, and cylindrical portion 12 radius R11 is 49mm, and line part 11 radius R12 is
46mm, conus portion 13 tip radius R13 is 7mm；
The height H2 of feed connector 2 is 6mm, and upper surface radius R21 is 9mm, and lower surface radius R22 is 15mm；
The radius R3 of base plate 3 is 95mm；
Connecting in sheet 4, the height H5 of L-type minor matters 41 is 32mm, and length L5 is 38mm, and length A5 of cuboid 42 is
22mm, width B5 are 15mm；
The radius R4 of round insulation pad 5 is 20mm；
Length A4 of rectangle insulation spacer 6 is 25mm, and width B4 is 20mm.
Below in conjunction with simulation result, the technique effect of the present invention is further described:
Emulation 1. utilizes simulation software HFSS to the voltage standing wave ratio of above-described embodiment 1 in the range of 0.8GHz～2.8GHz
Carrying out simulation calculation, result is as shown in Figure 5.From figure 5 it can be seen that the embodiment of the present invention 1 at whole 0.8GHz～0.96GHz and
The voltage standing wave ratio of 1.7GHz～2.7GHz band limits internal antenna is respectively less than 1.4, illustrates that the present invention has good impedance band
Wide characteristic.
Emulation 2. utilizes simulation software HFSS to imitate the gain of above-described embodiment 1 in the range of 0.8GHz～2.8GHz
True calculating, result is as shown in Figure 6.As seen from Figure 6, the gain of this embodiment 1 is increased with frequency and is increased, and meets and is actually subjected to
Ask.
Emulation 3. utilizes simulation software HFSS to enter the horizontal radiation pattern of above-described embodiment 1 at 0.8GHz～0.96GHz
Row simulation calculation, the horizontal radiation pattern of 0.8GHz, 0.96GHz as it is shown in fig. 7, wherein Fig. 7 (a) be 0.8GHz horizontal plane direction
Figure, Fig. 7 (b) is 0.96GHz horizontal radiation pattern.
Emulation 4. utilizes simulation software HFSS to carry out the horizontal radiation pattern of above-described embodiment 1 at 1.7GHz～2.7GHz
Simulation calculation, as shown in Figure 8, wherein Fig. 8 (a) is 1.7GHz horizontal plane to the horizontal radiation pattern of 1.7GHz, 2.2GHz, 2.7GHz
Directional diagram, Fig. 8 (b) is 2.2GHz horizontal radiation pattern, and Fig. 8 (c) is 2.7GHz horizontal radiation pattern.
From Fig. 7 and Fig. 8, the embodiment of the present invention 1 is at whole 0.8GHz～0.96GHz and 1.7GHz～2.7GHz frequency
Good omnidirectional radiation characteristic is all kept in segment limit.
To direction at above-mentioned 0.8GHz, 0.96GHz, 1.7GHz, 1.9GHz, 2.1GHz, 2.3GHz, 2.5GHz, 2.7GHz
Figure out-of-roundness arranges, and result is as shown in table 1.
Table 1 embodiment 1 directional diagram out-of-roundness statistical table
| Frequency (GHz) | 0.8 | 0.96 | 1.7 | 1.9 |
| Directional diagram out-of-roundness (dB) | 0.1826 | 0.8266 | 1.7121 | 2.4569 |
| Frequency (GHz) | 2.1 | 2.3 | 2.5 | 2.7 |
| Directional diagram out-of-roundness (dB) | 2.3204 | 1.9007 | 1.6073 | 1.3570 |
As seen from Table 1, the directional diagram out-of-roundness of the embodiment of the present invention 1 is less than 1dB at 0.8GHz～0.96GHz,
Less than 3dB in 1.7GHz～2.7GHz, meet actual requirement.
The above-mentioned simulation result explanation present invention is by simplifying feed structure, simplifying conical transducer and use novel being of coupled connections
Version, maintain good radiance.
The preferred embodiment of above description and examples, the only present invention, does not constitute any limitation of the invention, it is clear that right
For one of skill in the art, after understanding present invention and design principle, all may be in principle based on the present invention
In the case of structure, carry out in form and the various corrections in details and change, but these based on inventive concept are repaiied
Just with change still within the scope of the claims of the present invention.
Claims (8)
1. a single polarization indoor ceiling aerial, including radiating doublet (1), feed connector (2), base plate (3) and connection sheet
(4), it is characterised in that:
Described radiating doublet (1), including line part (11), cylindrical portion (12) and conus portion (13), the top of this conus portion (13)
For planar structure, it is positioned at the top of feed connector (2)；
Described feed connector (2), employing frustum cone structure, and it is positioned at the top of base plate (3), and by round insulation pad (5)
Separate；
Described base plate (3), uses disc structure, and is positioned at the lower section connecting sheet (4), and by rectangle insulation spacer (6) point
Every, and be of coupled connections through plastic rivet.
Single polarization indoor ceiling aerial the most according to claim 1, it is characterised in that described connection sheet (4), between using 3
Being divided into the coupling ties composition of 120 °, each coupling ties is by L-type minor matters (41) and the cuboid that is connected with its end
(42) composition, and the short circuit of L-type minor matters (41) and cylindrical portion (12) is connected, cuboid (42) pass through rectangle insulation spacer (6) and
Base plate (3) is of coupled connections.
Single polarization indoor ceiling aerial the most according to claim 2, it is characterised in that the height of each L-type minor matters (41)
H5 is 20mm～32mm, and length L5 is 26mm～38mm, and length A5 of cuboid (42) is 10mm～22mm, and width B5 is 5mm
～15mm.
Single polarization indoor ceiling aerial the most according to claim 1, it is characterised in that the height H1 of described radiating doublet (1)
For 50mm～62mm, and the radius R11 of cylindrical portion (12) is 37mm～49mm, the radius R12 of line part (11) be 32mm～
46mm, the radius R13 on conus portion (13) top are 2mm～7mm.
Single polarization indoor ceiling aerial the most according to claim 1, it is characterised in that the height of described feed connector (2)
H2 is 2mm～6mm, and the radius R21 of upper surface is 3mm～9mm, and the radius R22 of lower surface is 5mm～15mm.
Single polarization indoor ceiling aerial the most according to claim 1, it is characterised in that the radius R3 of described base plate (3) is
75mm～95mm.
Single polarization indoor ceiling aerial the most according to claim 1, it is characterised in that the half of described round insulation pad (5)
Footpath R4 is 5mm～20mm.
Single polarization indoor ceiling aerial the most according to claim 1, it is characterised in that described rectangle insulation spacer (6)
Length A4 is 10mm～25mm, and width B4 is 5mm～20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808182.4A CN106252850A (en) | 2016-09-08 | 2016-09-08 | Single polarization indoor ceiling aerial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808182.4A CN106252850A (en) | 2016-09-08 | 2016-09-08 | Single polarization indoor ceiling aerial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106252850A true CN106252850A (en) | 2016-12-21 |
Family
ID=57598673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610808182.4A Pending CN106252850A (en) | 2016-09-08 | 2016-09-08 | Single polarization indoor ceiling aerial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106252850A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365330A (en) * | 2017-01-27 | 2018-08-03 | 凯瑟雷恩工厂两合公司 | Wideband omnidirectional antenna |
| CN109509956A (en) * | 2018-12-25 | 2019-03-22 | 江苏省东方世纪网络信息有限公司 | Ceiling mount antenna |
| CN111129733A (en) * | 2019-12-26 | 2020-05-08 | 佛山市波谱达通信科技有限公司 | Ultra-wideband 5G ceiling antenna |
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| CN1822433A (en) * | 2006-02-22 | 2006-08-23 | 深圳国人通信有限公司 | Super broad band indoor beautifying ceiling antenna |
| CN202564537U (en) * | 2012-03-28 | 2012-11-28 | 广东盛华德通讯科技股份有限公司 | Ultra-wideband inter-modulation ceiling antenna |
| CN103066377A (en) * | 2012-12-31 | 2013-04-24 | 佛山市粤海信通讯有限公司 | Radiating unit and broadband high-intermodulation omni-directional ceiling antenna |
| CN203085736U (en) * | 2013-01-08 | 2013-07-24 | 广东华灿电讯科技有限公司 | Omnidirectional ceiling antenna |
| CN204885419U (en) * | 2015-08-05 | 2015-12-16 | 佛山市迪安通讯设备有限公司 | Ceiling antenna of double polarization qxcomm technology |
| US9472842B2 (en) * | 2015-01-14 | 2016-10-18 | Symbol Technologies, Llc | Low-profile, antenna structure for an RFID reader and method of making the antenna structure |
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2016
- 2016-09-08 CN CN201610808182.4A patent/CN106252850A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1822433A (en) * | 2006-02-22 | 2006-08-23 | 深圳国人通信有限公司 | Super broad band indoor beautifying ceiling antenna |
| CN202564537U (en) * | 2012-03-28 | 2012-11-28 | 广东盛华德通讯科技股份有限公司 | Ultra-wideband inter-modulation ceiling antenna |
| CN103066377A (en) * | 2012-12-31 | 2013-04-24 | 佛山市粤海信通讯有限公司 | Radiating unit and broadband high-intermodulation omni-directional ceiling antenna |
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| US9472842B2 (en) * | 2015-01-14 | 2016-10-18 | Symbol Technologies, Llc | Low-profile, antenna structure for an RFID reader and method of making the antenna structure |
| CN204885419U (en) * | 2015-08-05 | 2015-12-16 | 佛山市迪安通讯设备有限公司 | Ceiling antenna of double polarization qxcomm technology |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365330A (en) * | 2017-01-27 | 2018-08-03 | 凯瑟雷恩工厂两合公司 | Wideband omnidirectional antenna |
| CN109509956A (en) * | 2018-12-25 | 2019-03-22 | 江苏省东方世纪网络信息有限公司 | Ceiling mount antenna |
| CN111129733A (en) * | 2019-12-26 | 2020-05-08 | 佛山市波谱达通信科技有限公司 | Ultra-wideband 5G ceiling antenna |
| CN111129733B (en) * | 2019-12-26 | 2022-05-17 | 佛山市波谱达通信科技有限公司 | Ultra-wideband 5G ceiling antenna |
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Application publication date: 20161221 |