CN107248621A - A kind of polarized rotation radiating guide for base station - Google Patents
A kind of polarized rotation radiating guide for base station Download PDFInfo
- Publication number
- CN107248621A CN107248621A CN201710483526.3A CN201710483526A CN107248621A CN 107248621 A CN107248621 A CN 107248621A CN 201710483526 A CN201710483526 A CN 201710483526A CN 107248621 A CN107248621 A CN 107248621A
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- China
- Prior art keywords
- mrow
- parallel stripes
- radiating guide
- base station
- rectangular waveguide
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 40
- 230000010287 polarization Effects 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 abstract description 5
- 238000005388 cross polarization 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
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/06—Waveguide mouths
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention provides a kind of polarized rotation radiating guide for base station, it is related to field of antenna, the described polarized rotation radiating guide for base station includes radiating guide unit and parallel strip face, radiating guide unit is rectangular waveguide, rectangular waveguide is fed by N Connector, the pin of N Connector is connected into a metal cylinder, metal parallel stripes are printed on medium substrate and form parallel stripes surface, metal parallel stripes rotate 45 degree relative to the long axis direction of rectangular waveguide, by the present invention in that using parallel stripes surface, polarised direction have rotated 45 ° and perpendicular to the direction of band, due to the strong near-field coupling between waveguide and parallel strip face, electric current is mainly distributed on bar and taken, and direction is along strip direction, so as to which parallel stripes surface generates 45 ° of line polarization waves, two parallel stripes surfaces with cross polarization can level in the same direction or vertically put together in the same direction, the dual polarized antenna of ± 45 ° of formation.
Description
Technical field
The present invention relates to field of antenna, especially a kind of radiating guide.
Background technology
Nowadays, ± 45 ° of dual polarized antenna has been widely used for cellular basestation, because they can reduce modern movement
Multipath transmisstion effect in communication system simultaneously strengthens signal receiving quality, therefore, people design have high performance ± 45 ° it is bipolar
Change and a variety of trials and effort has been carried out on antenna direction.
In general, the main Types of antenna for base station include dipole antenna, slot antenna and microstrip antenna, wherein dipole antenna
Audient is very wide in base station applications for line, wider bandwidth can be obtained by using balun or other matching techniques, in this band
Directional diagram and the gain of stabilization can also be realized in width, in addition, two doublet units can simply rotate and intersect placement,
So as to form ± 45 ° of dual polarization.Slot antenna and paster antenna are typically used as the single-polarized antenna of base station applies, meanwhile,
Dual-polarized design is realized in the presence of using gap or paster antenna as unit, the major defect of this design is its relative narrower
Bandwidth.In order to expand frequency band, it is necessary to special feed structure improves impedance matching, structure is set to increase while becoming complexity
Cost.In addition, for the antenna for base station of above-mentioned several types, in addition it is also necessary to which desired spoke is realized on the ground more much bigger than antenna
Performance is penetrated, so that cause relatively large volume, therefore design wide band antenna for base station a kind of simple in construction and inexpensive is
One urgent problem.
The content of the invention
In order to overcome the deficiencies in the prior art, present invention design one kind is not required on the premise of antenna performance index is met
Want balun or other matching techniques, the antenna for base station with advantage simple in construction and inexpensive.
The technical solution adopted for the present invention to solve the technical problems is：
Polarized rotation radiating guide of the present invention for base station includes radiating guide unit and parallel strip face
(surface of parallel strips, SPS)；
Radiating guide unit is rectangular waveguide, and the size of rectangular waveguide bore is calculated by equation below：
In formula (1), f is working frequency, and a, b is respectively long side and the broadside of rectangular waveguide, and m, n is mode of operation number, and μ is
Magnetic conductivity, ε is dielectric constant；
The main mould of radiating guide unit is TE10 moulds, and main polarization direction is the short-axis direction of rectangular waveguide, square wave conducting
N Connector feed is crossed, the pin of N Connector is connected to the circle of a metal cylinder, metal cylinder and N Connector
The heart is overlapped, and metal cylinder length be 2/15 operation wavelength, the reverse side of rectangular waveguide opening surface is bottom surface, distributing point away from
The operation wavelength of bottom surface 1/3 of rectangular waveguide；
Metal parallel stripes are printed on medium substrate and form parallel stripes surface, the medium substrate on parallel stripes surface
Material is FR4, and thickness is 0.8mm, and relative dielectric constant is 4.4, and parallel stripes surface has and waveguide openings face identical face
Product, i.e., parallel stripes surface is that long side is the rectangle that a broadsides are b, and parallel stripes surface is placed on apart from rectangular waveguide opening
0.01 times of operating wave strong point in face, metal parallel stripes relative to rectangular waveguide long axis direction rotate 45 degree, i.e., it is long with waveguide
Direction of principal axis angle is 45 °, and the spacing of each metal parallel stripes is 1/100 times of operation wavelength, the width of metal parallel stripes
For 1/30 operation wavelength.
The waveguide material of the polarized rotation radiating guide for base station is aluminium.
The metal cylinder of the polarized rotation radiating guide for base station is copper.
Metal parallel stripes material on the parallel stripes surface for the polarized rotation radiating guide of base station is copper.
The beneficial effects of the invention are as follows because using parallel stripes surface, polarised direction have rotated 45 ° and perpendicular to band
Direction, due to the strong near-field coupling between waveguide and parallel strip face, electric current is mainly distributed on bar and taken, and direction edge
Strip direction, so that parallel stripes surface generates 45 ° of line polarization waves, two parallel stripes surfaces with cross polarization can
Put together in the same direction in the same direction or vertically with level, form ± 45 ° of dual polarized antenna.
Brief description of the drawings
Fig. 1 is the top view of radiating guide of the present invention.
Fig. 2 is the cross section view of radiating guide of the present invention.
Fig. 3 is the top view on parallel stripes surface (SPS) in radiating guide of the present invention.
Wherein, a- waveguides are long-armed, b- waveguide galianconism, the radius of Pr- metal cylinders, the length of P1- metal cylinders,
The length of P2-N type connectors, the center of circle of PL- metal cylinders to the distance of guide floor, hs- parallel stripes surface to waveguide
Distance between the distance of opening surface, the width of sw- metal parallel stripes, gw- metal parallel stripes, the width of wt- wave guide walls,
Wl- waveguide surfaces are to the distance of guide floor, 1-N type connectors, 2- parallel stripes surface.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Polarized rotation radiating guide of the present invention for base station includes radiating guide unit and parallel strip face
(surface of parallel strips, SPS).
Radiating guide Unit selection rectangular waveguide, the size of rectangular waveguide bore is calculated by equation below：
In formula (1), f is working frequency, and a, b is respectively long side and the broadside of rectangular waveguide, and m, n is mode of operation number, and μ is
Magnetic conductivity, ε is dielectric constant；
The main mould of radiating guide unit is TE10 moulds, and main polarization direction is the short-axis direction of rectangular waveguide, square wave conducting
N Connector feed is crossed, the pin of N Connector is connected to the circle of a metal cylinder, metal cylinder and N Connector
The heart is overlapped, and metal cylinder length be 2/15 operation wavelength, the reverse side of rectangular waveguide opening surface is bottom surface, distributing point away from
The operating wave strong point of bottom surface 1/3 of rectangular waveguide；
Metal parallel stripes are printed on medium substrate and form parallel stripes surface, the medium substrate on parallel stripes surface
Material is FR4, and thickness is 0.8mm, and relative dielectric constant is 4.4, and parallel stripes surface has and waveguide openings face identical face
Product, i.e., parallel stripes surface is that long side is the rectangle that a broadsides are b, and parallel stripes surface is placed on apart from rectangular waveguide opening
0.01 times of operating wave strong point in face, metal parallel stripes relative to rectangular waveguide long axis direction rotate 45 degree, i.e., it is long with waveguide
Direction of principal axis angle is 45 °, and the spacing of each metal parallel stripes is 1/100 times of operation wavelength, the width of metal parallel stripes
For 1/30 operation wavelength.
The waveguide material of the polarized rotation radiating guide for base station is aluminium.
The metal cylinder material of the polarized rotation radiating guide for base station is copper.
Metal parallel stripes material on the parallel stripes surface for the polarized rotation radiating guide of base station is copper.
The radiating guide unit of the present invention uses 300mm × 165m bore, and waveguide selection uses a length of 300mm, a width of
165mm, a height of 200mm rectangular waveguide is fed, distributing point is away from rectangular waveguide bottom surface 120mm, parallel strip on the long-armed face of waveguide
Belt surface is placed at the 4mm of rectangular waveguide opening surface.
The top view for the antenna for base station that the present invention is designed is as shown in figure 1, the top view such as Fig. 3 of parallel stripes surface (SPS)
Shown, the cross section view of radiating guide is as shown in Fig. 2 wherein, a is that waveguide is long-armed, and b is waveguide galianconism, and Pr is metal cylinder
Radius, P1 be metal cylinder length, P2 be N Connector length, PL be metal cylinder the center of circle to waveguide bottom
The distance in face, hs is distance of the parallel stripes surface to waveguide openings face, and sw is the width of metal parallel stripes, and gw is flat for metal
The distance of row bar interband, wt is the width of wave guide wall, and wl is distance of the waveguide surface to guide floor.
Specific structural parameters size is as shown in table 1：
Table 1
| Variable | Numerical value (mm) |
| a | 300 |
| b | 165 |
| Pr | 21 |
| P1 | 50 |
| P2 | 20 |
| PL | 120 |
| hs | 4 |
| sw | 12 |
| gw | 4 |
| wt | 2 |
| wl | 200 |
Pass through the design of ± 45 ° of dual polarization radiating guides of parallel stripes surface (SPS), the final work of the antenna of design
Frequency band is 698~960MHz, and relative bandwidth is 31.6%.In bandwidth, voltage standing wave ratio (Voltage Standing Wave
Ratio, VSWR) it is less than 1.5, half-power beam width (Half-power beamwidth, HPBW) is 65 ° ± 5 °, and wave beam increases
Benefit is 6.5 ± 0.7dBi.Cross polarization isolation is more than 12dB at beam center, and the resolution ratio in HPBW is more than 10dB.Knot
Fruit shows that the antenna proposed can meet the design requirement of ± 45 ° of dual-polarized antenna for base station.
Claims (4)
1. a kind of polarized rotation radiating guide for base station, including radiating guide unit and parallel strip face, its feature exist
In：
Radiating guide unit is rectangular waveguide, and the size of rectangular waveguide bore is calculated by equation below：
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In formula (1), f is working frequency, and a, b is respectively long side and the broadside of rectangular waveguide, and m, n is mode of operation number, and μ is magnetic conductance
Rate, ε is dielectric constant；
The main mould of radiating guide unit is TE10 moulds, and main polarization direction is the short-axis direction of rectangular waveguide, and rectangular waveguide passes through N-type
Connector is fed, and the pin of N Connector is connected to the center of circle weight of a metal cylinder, metal cylinder and N Connector
Close, and the length of metal cylinder is 2/15 operation wavelength, the reverse side of rectangular waveguide opening surface is bottom surface, and distributing point is away from rectangle
The operation wavelength of bottom surface 1/3 of waveguide；
Metal parallel stripes are printed on medium substrate and form parallel stripes surface, the medium substrate material on parallel stripes surface
For FR4, thickness is 0.8mm, and relative dielectric constant is 4.4, parallel stripes surface have with waveguide openings face identical area, i.e.,
Parallel stripes surface is that long side is the rectangle that a broadsides are b, and parallel stripes surface is placed on apart from rectangular waveguide opening surface
0.01 times of operating wave strong point, metal parallel stripes rotate 45 degree relative to the long axis direction of rectangular waveguide, i.e., with waveguide major axis side
It it is 45 ° to angle, the spacing of each metal parallel stripes is 1/100 times of operation wavelength, and the width of metal parallel stripes is 1/
30 operation wavelength.
2. the polarized rotation radiating guide according to claim 1 for base station, it is characterised in that：
The waveguide material of the polarized rotation radiating guide for base station is aluminium.
3. the polarized rotation radiating guide according to claim 1 for base station, it is characterised in that：
The metal cylinder of the polarized rotation radiating guide for base station is copper.
4. the polarized rotation radiating guide according to claim 1 for base station, it is characterised in that：
Metal parallel stripes material on the parallel stripes surface for the polarized rotation radiating guide of base station is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710483526.3A CN107248621A (en) | 2017-06-23 | 2017-06-23 | A kind of polarized rotation radiating guide for base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710483526.3A CN107248621A (en) | 2017-06-23 | 2017-06-23 | A kind of polarized rotation radiating guide for base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107248621A true CN107248621A (en) | 2017-10-13 |
Family
ID=60018434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710483526.3A Pending CN107248621A (en) | 2017-06-23 | 2017-06-23 | A kind of polarized rotation radiating guide for base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107248621A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004120792A (en) * | 1998-12-25 | 2004-04-15 | Murata Mfg Co Ltd | Waveguide conversion structure, waveguide connection structure, primary radiator, oscillator and transmission apparatus |
| US20060066414A1 (en) * | 2004-09-28 | 2006-03-30 | Rockwell Scientific Licensing, Llc | Method and apparatus for changing the polarization of a signal |
| CN206059592U (en) * | 2016-08-30 | 2017-03-29 | 江苏贝孚德通讯科技股份有限公司 | A kind of waveguide 90 degree turning structure |
-
2017
- 2017-06-23 CN CN201710483526.3A patent/CN107248621A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004120792A (en) * | 1998-12-25 | 2004-04-15 | Murata Mfg Co Ltd | Waveguide conversion structure, waveguide connection structure, primary radiator, oscillator and transmission apparatus |
| US20060066414A1 (en) * | 2004-09-28 | 2006-03-30 | Rockwell Scientific Licensing, Llc | Method and apparatus for changing the polarization of a signal |
| CN206059592U (en) * | 2016-08-30 | 2017-03-29 | 江苏贝孚德通讯科技股份有限公司 | A kind of waveguide 90 degree turning structure |
Non-Patent Citations (1)
| Title |
|---|
| HAILIANG L. ZHU: "Polarization-Rotated Waveguide Antennas for Base-Station Applications", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
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Application publication date: 20171013 |