CN207233933U - Wideband dual polarized electromagnetic dipole antenna - Google Patents
Wideband dual polarized electromagnetic dipole antenna Download PDFInfo
- Publication number
- CN207233933U CN207233933U CN201720440808.0U CN201720440808U CN207233933U CN 207233933 U CN207233933 U CN 207233933U CN 201720440808 U CN201720440808 U CN 201720440808U CN 207233933 U CN207233933 U CN 207233933U
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- Prior art keywords
- antenna
- dipole
- dual polarized
- wideband dual
- patch
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- 230000009977 dual effect Effects 0.000 title claims abstract description 25
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 abstract description 8
- 230000005855 radiation Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000000295 complement effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model discloses a kind of wideband dual polarized electromagnetic dipole antenna.The antenna is based on electromagnetic dipole complementary duty principle, forms electric dipole using orthogonal bow-tie type gap loading patch, forms magnetic dipole using apart from the quarter-wave vertical patch in ground and in-between floor, realize the wideband dual polarized characteristic of antenna.Using bendingType feed structure feeds to realize, which has the energy transmission realized by coaxial line to radiation terminal, and the function of Antenna Impedance Matching is realized in coupling and adjusting impedance.The metallic reflection box being positioned over below antenna plays the role of the directional diagram for improving antenna and protects antenna stabilization.The antenna not only can realize that impedance matching is good in wider working band, while also have high-isolation, high-gain, the characteristics such as E faces, H faces directional diagram are consistent.The utility model proposes electromagnet dipole antenna be not only simple in structure, can reduce the mounting cost and installation space of antenna, there is important actual application value.
Description
Technical field
It the utility model is related to dual polarized antenna technical field, more particularly to Wideband Dual-polarized electricity magnetic dipole day
Line.
Background technology
Dual polarized antenna because of its polarization diversity, can the effectively extended channel capacity in limited installation space, greatly
It is big alleviate in communication system multipath fading the problem of and obtain universal application in recent years.It is traditional using probe excitation
Microstrip antenna, although dual-polarized characteristic can be realized, the working band that this double probe excitations come out is generally very narrow, this
And its maximum bottleneck for running into practical applications.
Wideband dual polarized electromagnetic dipole antenna is realized using electromagnetic dipole complementarity principle, is swashed compared to traditional probe
The microstrip antenna encouraged, can greatly improve the bandwidth of operation of antenna, and this antenna dexterously utilizes electric dipole and magnetic dipole
In E faces, the characteristic of H faces directional diagram complementation, the appropriate relative position for adjusting electric dipole and magnetic dipole, realizes E faces and H face sides
The characteristic consistent to figure.Meanwhile presented compared to the double polarized micro strip antenna of conventional probe excitation, the antenna using orthogonal Γ types
Cable architecture, greatly improves the isolation of dual polarized antenna, in addition, antenna gain also improves a lot.
Wideband dual polarized electromagnetic dipole antenna structure is simple, and processing cost is low, can not only save the sky of equipment installation
Between, the cost of manufacture of antenna can also be greatly reduced.Therefore research is carried out to this antenna so as to obtain the antenna of higher performance
There is technical indicator important Practical Project to be worth.
Utility model content
In view of the above shortcomings of the prior art, the utility model provides a kind of Wideband Dual-polarized electricity magnetic dipole day
Line, loads by using gap, using broadband electric dipole and therewith complementary magnetic dipole, and the Γ types feeder line structure of folding is realized
The wideband dual polarized performance of antenna.
To achieve the above object, the utility model adopts the following technical solution：
Wideband Dual-polarized electricity magnetic-dipole antenna, the antenna includes orthogonal bow-tie type electromagnetic dipole, described
Each electromagnetic dipole includes an electric dipole, a magnetic dipole, and the electric dipole is pasted including a pair of orthogonal bow-tie type
Piece, it highly is four that the magnetic dipole, which includes the vertical patch that is connected with bow-tie type short side and geomagnetic dipole between the two,
/ mono- wavelength, adjustment electric dipole make its orthogonally located, realize the wideband dual polarized characteristic of antenna with magnetic dipole position.
The electromagnetic dipole realizes feed using the Γ types feed structure of bending, and the feed structure includes three
Point：The Part I of feeder line is the coaxial vertical component connect with floor bottoms；It is connected with Part I while distinguishes upward
The horizontal component of lower two opposite directions bending is Part II；Part III is the end being connected on the Part II
Vertical patch；Wherein, coaxial fitting is attached with feeder line by soldering, and three parts of feeder line are an overall patches, are passed through
Overshoot bends the shaping of folding technology.
Further, symmetrical gap is provided with the electric dipole, can increase high-frequency resonant using gap loading technique
Performance.
Further, the Part II of the Γ feeder lines by bending downward upwards repeatedly, for improving the isolation of antenna
Degree.
Further, the surrounding in the antenna sets the metal fence contour with antenna and is set in the antenna bottom
Metal bottom surface is put, the metal box of upper opening is integrally formed.
Further, vertical patch bottom is provided with rectangular recess in the magnetic dipole, for improving the good side of antenna
To figure characteristic.
Further, the metal box is copper.The utility model has following innovation：
1. the utility model mainly proposes a kind of Wideband Dual-polarized electricity magnetic-dipole antenna, pass through electromagnetic dipole day
Line complementarity principle realizes that antenna is wideband dual polarized, high-isolation, high-gain, the good uniformity of E faces H faces directional diagram.
It is 2. simple in structure：Structure is metal construction, and simple and compact is convenient to process.
3. strong innovation, technology is perspective good：The utility model is formed using orthogonal bow-tie type gap loading patch
Electric dipole, realizes broadband character, while the isolation of the feed structure raising raising antenna using bending, strong innovation；
It can be used cooperatively with PCB technologies, realize the functions such as low section, expand the application range of antenna for base station, have good skill
Art is perspective.
4. broadband high-isolation high-gain：Broadband dual polarized antenna can realize relative bandwidth 83.3%, E, H face directional diagram
Uniformity is good, and the gain of whole working band internal antenna is in more than 7dBi, and gain stabilization.
5. processing cost is low：Whole antenna element is processed using the brass of 0.2 mm of thickness, and cost is low.
Brief description of the drawings
Fig. 1 is the utility model electromagnetic dipole antenna overall diagram；
Fig. 2, Fig. 3 are respectively the front view and side view of electromagnetic dipole antenna；
Fig. 4 is the orthogonal Γ type feed structure schematic diagrames of the utility model；
Fig. 5 is the utility model S11 and S22 result figures；
Fig. 6 is the utility model isolation result figure；
Fig. 7 is the utility model antenna gain pattern；
Fig. 8 is front and rear than figure for the utility model antenna；
Fig. 9, Figure 10, Figure 11 are respectively antenna in 2.4GHz, 3.4GHz, 4.4GHz operative orientation figures；
Wherein, the vertical copper sheets of 1-, 2- bow-tie type copper sheets, 3- reflection boxes, 4- orthogonal feed structures.
Embodiment
The utility model is based on electromagnetic dipole complementary theory, and galvanic couple is formed using orthogonal bow-tie type gap loading patch
It is extremely sub, meanwhile, the quarter-wave vertical patch in distance ground and the floor between it form magnetic dipole, realize wide band dipole
The characteristic of change.In addition feed is realized using the Γ types feed structure of bending, which, which has, realizes coaxial line to radiation
The energy transmission of terminal, coupling, and adjust the function that Antenna Impedance Matching is realized in impedance.Γ type feed structure bottoms and floor
The coaxial fitting connection of bottom.Antenna surrounding adds metal fence, its height is identical with antenna height, which can also play
In the effect of adverse circumstances protection antenna structure stability.
The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the utility model includes mutually orthogonal a pair of of electromagnetic dipole antenna, each of which electromagnetism is even
Pole attached bag contains a horizontal bow-tie type electric dipole, a magnetic dipole and the Γ type feeder lines between being placed therein.Wherein
There is the vertical patch of two panels to be attached thereto at the short side of electric dipole, patch height apart from the quarter-wave distance in ground, this
Two vertical patches and floor form a magnetic dipole plus appropriate excitation.Symmetric form is provided with above bow-tie type electric dipole
Gap, can increase high-frequency resonant performance using gap loading technique, make antenna can have in whole frequency range one it is good
Working characteristics.Γ types feeder line short-circuit patch vertical with adjacent with the part that coaxial fitting connects forms an impedance approximate 50
The transmission line of ohm, the horizontal component of feeder line are placed using orthogonal manner, while in order to increase the isolation of dual polarized antenna, should
Part is bent to direction opposite up and down respectively.Alternatively, it is also possible to using feeder line horizontal width is reduced, increase doing for thickness
Method carrys out 80mm) on, reflecting plate can greatly reduce the back lobe radiation of antenna, the directionality of antenna is improved.For terrible 24mm),
The fence can play the role of protecting antenna structure at the same time.
As shown in Fig. 2, antenna is made of the brass of 0.2mm thickness, bow-tie type electric dipole has two isosceles trapezoid groups
Into the trapezoidal upper long w2=14mm in bottom, go to the bottom long w1=20mm, trapezoidal high l1=18mm.Trapezoidal centre is cut out a concave character type
Groove, what center section showed is also one small trapezoidal, and the small trapezoidal upper long w3=4mm in bottom, go to the bottom long w4=6mm, ladder
The high l3=6mm of shape.Three sections of feeder line horizontal component point is in symmetrical structure, Part I length f1=4mm, Part II length f2=
12mm, Part III is isometric with Part I, and being of same size for whole feeder line is all f3=4mm.Fig. 3 is antenna side view, from
It can be seen from the figure that antennas orthogonal patch height is n1=24mm, the rectangle high n2=8mm, wide n3=4mm that patch is cut out below.
Fig. 4 be the utility model in orthogonal Γ types feed structure, the one high and one low distribution straggly of two feed structures, higher feedback
The hop of line is highly h2=20.5mm, and capacitance-adjusting segment (Part III) is h3=5mm, and horizontal component is upward
Highly it is h5=1.5mm；The hop of relatively low feeder line is highly h1=18.5mm, the part h4=1.5mm recessed down gone,
Capacitance-adjusting segment is also 5mm.
Fig. 5 is the S parameter of the wideband dual polarized electromagnetic dipole antenna of the utility model, it can be seen from the figure that port 1 is swashed
When encouraging, when 1 port reflectance factor S11 of antenna is less than -10dB, relative bandwidth is 88% (2.1-5.4GHz)；When port 2 is encouraged,
When 2 port reflectance factor S11 of antenna is less than -10dB, relative bandwidth is 84.1% (2.08-5.1GHz)；Two-port works together
Bandwidth can realize that opposite bandwidth of operation is 83.3% (2.1-5.1GHz), and the bandwidth of operation of antenna is wider.
Fig. 6 is the isolation of the wideband dual polarized electromagnetic dipole antenna of the utility model, is as can be seen from the figure being worked
In frequency band, the isolation (S21) of antenna can reach below -17dB, especially in the working band after 2.25GHz, antenna
S21 below -20dB, realize the high-isolation of antenna.
Fig. 7 is the gain of the wideband dual polarized electromagnetic dipole antenna of the utility model, as can be seen from the figure in work frequency
In band, the gain of antenna is in more than 7dBi, while maximum gain can reach 9.6dBi, and antenna has the characteristics that high-gain.
Fig. 8 be the wideband dual polarized electromagnetic dipole antenna of the utility model front and rear ratio, in working band, antenna it is equal
In more than 15dB, the back lobe radiation of antenna is small, and directional radiation properties are good.
Antenna is in 2.4GHz, and the directional diagram of 3.4GHz, 4.4GHz work is respectively in Fig. 9 into Figure 11, it can be seen that at this
A little frequency points, the E faces of antenna, H faces all have good uniformity, and 3dB beam angles are also wider in three frequency points, while antenna
Cross polarization is very low, meets the design objective of dual polarized antenna.
The above is only the preferred embodiment of the utility model, it should be pointed out that：For the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (5)
1. wideband dual polarized electromagnetic dipole antenna, it is characterised in that the antenna includes orthogonal bow-tie type electromagnetic dipole,
Each electromagnetic dipole includes an electric dipole, a magnetic dipole, and the electric dipole includes a pair of orthogonal knot
Type patch, the magnetic dipole include the vertical patch that is connected with bow-tie type short side and ground between the two, and magnetic dipole is high
Spend makes its orthogonally located, realizes that antenna is wideband dual polarized for quarter-wave, adjustment electric dipole with magnetic dipole position
Characteristic；Hole is provided with type feed structure on the underface floor of the longer patch on ground, the coaxial of floor back connects
Head is weldingly connected by hole and feed structure；The electromagnetic dipole realizes feed, institute using the type feed structure of bending
Stating feed structure includes three parts：The Part I of feeder line is the coaxial vertical component connect with floor bottoms；With first
Split-phase together with when lower two opposite directions bending upward respectively horizontal component be Part II；Part III is described to be connected to
The vertical patch of end on Part II；Wherein, coaxial fitting is attached with feeder line by soldering, three parts of feeder line
It is an overall patch；Symmetrical gap is provided with the electric dipole.
2. wideband dual polarized electromagnetic dipole antenna according to claim 1, it is characterised in that second of the feeder line
Divide by bending downward upwards repeatedly, for improving the isolation of antenna.
3. wideband dual polarized electromagnetic dipole antenna according to claim 1 or 2, it is characterised in that in the antenna
Surrounding sets with the contour metal fence of antenna and sets metal bottom surface in the antenna bottom, and upper opening is integrally formed
Metal box.
4. wideband dual polarized electromagnetic dipole antenna according to claim 1, it is characterised in that hang down in the magnetic dipole
Straight patch bottom is provided with rectangular recess, for improving the good pattern characteristics of antenna.
5. wideband dual polarized electromagnetic dipole antenna according to claim 3, it is characterised in that the metal box is copper
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720440808.0U CN207233933U (en) | 2017-04-25 | 2017-04-25 | Wideband dual polarized electromagnetic dipole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720440808.0U CN207233933U (en) | 2017-04-25 | 2017-04-25 | Wideband dual polarized electromagnetic dipole antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207233933U true CN207233933U (en) | 2018-04-13 |
Family
ID=61839319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720440808.0U Expired - Fee Related CN207233933U (en) | 2017-04-25 | 2017-04-25 | Wideband dual polarized electromagnetic dipole antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207233933U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071367A (en) * | 2019-04-25 | 2019-07-30 | 河源广工大协同创新研究院 | A kind of dual polarization Shared aperture broad-band antenna |
| US11688947B2 (en) | 2019-06-28 | 2023-06-27 | RLSmith Holdings LLC | Radio frequency connectors, omni-directional WiFi antennas, omni-directional dual antennas for universal mobile telecommunications service, and related devices, systems, methods, and assemblies |
| US11777232B2 (en) | 2020-09-10 | 2023-10-03 | Integrity Microwave, LLC | Mobile multi-frequency RF antenna array with elevated GPS devices, systems, and methods |
-
2017
- 2017-04-25 CN CN201720440808.0U patent/CN207233933U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071367A (en) * | 2019-04-25 | 2019-07-30 | 河源广工大协同创新研究院 | A kind of dual polarization Shared aperture broad-band antenna |
| US11688947B2 (en) | 2019-06-28 | 2023-06-27 | RLSmith Holdings LLC | Radio frequency connectors, omni-directional WiFi antennas, omni-directional dual antennas for universal mobile telecommunications service, and related devices, systems, methods, and assemblies |
| US11777232B2 (en) | 2020-09-10 | 2023-10-03 | Integrity Microwave, LLC | Mobile multi-frequency RF antenna array with elevated GPS devices, systems, and methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20210425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |