CN107240769A - Low section double frequency ultra-wideband antenna - Google Patents
Low section double frequency ultra-wideband antenna Download PDFInfo
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- CN107240769A CN107240769A CN201710304396.2A CN201710304396A CN107240769A CN 107240769 A CN107240769 A CN 107240769A CN 201710304396 A CN201710304396 A CN 201710304396A CN 107240769 A CN107240769 A CN 107240769A
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- 239000000758 substrate Substances 0.000 claims abstract description 19
- 238000003491 array Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 7
- 238000010295 mobile communication Methods 0.000 abstract description 6
- 230000010287 polarization Effects 0.000 description 14
- 238000005388 cross polarization Methods 0.000 description 13
- 239000004020 conductor Substances 0.000 description 8
- 230000005855 radiation Effects 0.000 description 5
- 230000000977 initiatory effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 230000005465 channeling Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- 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
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- 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
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
Abstract
The present invention provides a kind of low section double frequency ultra-wideband antenna, it includes at least one double frequency ultra wide band oscillator unit, the double frequency ultra wide band oscillator unit includes the ultra wide band oscillator that a pair of orthogonal is set being printed on medium substrate, and the two-arm of each ultra wide band oscillator is fat bulk；The ultra wide band oscillator two-arm end offers deep-slotted chip breaker along both sides of the edge, and is loaded in ultra wide band oscillator end along oscillator arms outward flange at one section of arc minor matters, central crossbar provided with distributing point connecting coaxial cable or balun.The present invention is by using thick high dielectric constant substrate, oscillator surface slot and end load open circuit minor matters mode, for mobile communication micro-base station provide a kind of double frequency ultra wide band (full frequency band), low section, small size, MIMOization, high-isolation, high-gain low section double frequency ultra-wideband antenna.This method also has thinking novelty, clear principle, method is pervasive, realizations is simple, inexpensive, suitable the features such as produce in batches, it is the preferred scheme for replacing conventional broadband Small cell antennas, and is also to be applicable and effective for the design and improvement of conventional broadband cross dipole antenna.
Description
【Technical field】
The present invention relates to a kind of mobile communication antenna equipment and technology, more particularly to low section two-band ultra-wideband antenna
And its technology.
【Background technology】
At present, mobile communication is in the 4G extensive commercial epoch, and starts progressively to the evolution of 5G directions.By newly-built big
Macro base station is measured, mobile communication realizes wide area signal and continuously covered substantially.Macro base station high gain, capacity are big, overlay area is big, use
Amount is more, but addressing is difficult, cost is high, data transfer rate is low, and is difficult to the inferior local hot spot areas in covering interior and ground.Cellular network
Channeling is realized by cell segmentation.Naturally, in order to further improve channeling degree, people divide cellular cell again
It is cut into the smaller microcellulor of coverage, receives honeycomb, skin honeycomb etc., so that significantly improve coverage effect and improve power system capacity,
This turns into the effective means for solving depth covering and High Data Rate.Because application scenarios complexity is various, micro-base station (Small
Cell) form of antenna is numerous, but generally has the technical characterstic of miniaturization, low section, ultra wide band, dual polarization and MIMOization.
Antenna is designed to after ultra wide band and MIMOization that micro-base station will be provided with the advantage of high power capacity, high-speed and low cost；And antenna is small-sized
Change and low section, then site deployment can be allowed more hidden and easy, especially the indoor environment sensitive to antenna appearance height.
However, for the especially longitudinal highly strictly limited micro-base station antenna of size, to realize full frequency band ultra wide band (698~
960MHz/1710~2700MHz) will be abnormal difficult.Conventional oscillator only covers high frequency or low-frequency range, and away from floor about a quarter
Wavelength, this causes antenna longitudinal direction height very high (about 0.25 λ L), it is impossible to meet the design requirement of micro-base station antenna low section.
Nevertheless, cross oscillator ultra wide band and ± 45 ° of dual-polarized outstanding advantages, it is still suitable micro-base station antenna to make it
One of preferred scheme, but need to break through this too high technical bottleneck of section.The present invention has carried out one in prior art
Series innovation, by using high-k and the thicker medium substrate of thickness, oscillator surface fluting and end loading open circuit branch
The mode of section, realize existing cross oscillator can not full range covering, ultralow section (≤0.1 λ) and high cross polarization and height every
The characteristics of from spending, meet the technical requirements of micro-base station antenna.The ultra-wideband element antenna of the present invention can cover GSM frequency ranges simultaneously
(BW=262MHz, 31.6%) and LTE frequency ranges (698~960MHz/1710~2600MHz, VSWR≤2.24, BW=890MHz,
41.3%), and with the ultralow section (λ of ≈ 0.1L, λLFor lowest operating frequency in air), ± 45 ° of dual-linear polarizations, high intersect
Polarize (XPD>20dB), high-isolation (| S21|<- 40dB), directed radiation (being sent to outside antenna plane), higher gain (G=6.1-
9.1dBi) and higher efficiency (ηA>=78%).Then, by least two this low section cross oscillator unit is close to each other puts
Put, constitute a MIMO array with high isolation degree, be the ideal antenna scheme for being adapted to miniaturization micro-base station.In addition, should
Method also has thinking novelty, clear principle, method is pervasive, realizations is simple, inexpensive, suitable the features such as produce in batches, is to take
For the preferred scheme of conventional broadband Small cell antennas, and design and improvement for conventional broadband cross dipole antenna
It is to be applicable and effective.
【The content of the invention】
It is contemplated that providing a kind of double frequency ultra wide band, low section, small size, MIMOization, height for mobile communication micro-base station
The low section double frequency ultra-wideband antenna of isolation, high-gain.
To realize the object of the invention, there is provided following technical scheme：
The present invention provides a kind of low section double frequency ultra-wideband antenna, and it includes at least one double frequency ultra wide band oscillator unit,
The double frequency ultra wide band oscillator unit includes the ultra wide band oscillator that a pair of orthogonal is set being printed on medium substrate, each ultra wide band
The two-arm of oscillator is fat bulk, and the ultra wide band oscillator two-arm end offers deep-slotted chip breaker along both sides of the edge, at ultra wide band oscillator end
End loads along oscillator arms outward flange and distributing point connecting coaxial cable or balun is provided with one section of arc minor matters, central crossbar.
The present invention loads open circuit minor matters by using thick high dielectric constant substrate, oscillator surface fluting and end
Mode, a kind of double frequency ultra wide band (full frequency band), low section, small size, MIMOization, high isolation are provided for mobile communication micro-base station
Degree, the low section double frequency ultra-wideband antenna of high-gain.This method also has that thinking novelty, clear principle, method be pervasive, realization is simple
The features such as single, low cost, suitable batch production, be the preferred scheme for replacing conventional broadband Small cell antennas, and for
The design and improvement of conventional broadband cross dipole antenna are also to be applicable and effective.
It is preferred that, it is located at the top of the deep-slotted chip breaker on ± 45 ° of axis and protrudes outwardly, bottom extends to it along oscillator arms edge
Middle and lower part.
It is preferred that, in nearly a pair of stubs of centre position asymmetrical load of deep-slotted chip breaker, connect the inside and outside wall of deep-slotted chip breaker.
It is preferred that, the arc minor matters original position carries out driving cannelure in the middle of short-circuit connection, arc minor matters provided with arc section,
There is gap between the end of adjacent arc minor matters.
It is preferred that, the initiating terminals of the arc minor matters is parallel two-conductor section, interlude wider width and drives cannelure, end
It is then slightly narrow and extend at deep-slotted chip breaker terminal position disconnect；Will with two concentric circles segmental arcs in the initiating terminal of parallel two-conductor section
Arc minor matters two-arm is connected, it is preferred that the concentric circles segmental arc is symmetrical on ± 45 ° of central axis.
It is preferred that, the two-arm of the ultra wide band oscillator is symmetrical along ± 45 ° of central axis, and deep-slotted chip breaker is on ± 45 ° of central axis
Symmetrically, arc minor matters are symmetrical also with regard to ± 45 ° of central axis.It is preferred that, the deep-slotted chip breaker, short-circuit minor matters are walked with oscillator edge
To almost parallel, short-circuit minor matters and marginating compartment a certain distance；
It is preferred that, the dielectric constant of the medium substrate is εr=1~20, loss angle is that tan δ, thickness are Td=0~
0.25·λL, λLFor low-limit frequency wavelength.
It is preferred that, it is provided with reflecting plate in the side of the medium substrate, it is preferred that most short distance of the reflecting plate away from medium substrate
From less than 0.25 λL。
It is preferred that, the low section double frequency ultra-wideband antenna further comprises antenna house, and the double frequency ultra wide band oscillator unit is set
Put in antenna house.
It is preferred that, the antenna house corner is rounding or right angle.
It is preferred that, the low section double frequency ultra-wideband antenna includes two or more described double frequency ultra wide band oscillator units
MIMO array or conventional arrays are constituted, are placed in antenna house.
It is preferred that, the distributing point connects two 50 Ω coaxial cables, and cable internal and external conductor connects the two-arm of oscillator respectively.
Prior art is contrasted, the present invention has advantages below：
The positive effect of the present invention is, by taking following measures：1) broadband oscillator shape and size are optimized；2)
Optimize broadband oscillator edge deep-slotted chip breaker；3) the short-circuit minor matters in optimization broadband oscillator end；4) suitable medium substrate is chosen；5) reflect
Plate places correct position；6) broadband oscillator constitutes cross oscillator pair and apex drive to center superposition, orthogonal arrangement；7) intersect
Oscillator is to group MIMO gusts, so that low section double frequency ultra-wideband antenna of the present invention obtains what is be difficult to compared with prior art
Technique effect：First, double frequency ultra wide band, while covering GSM (0.698-0.96GHz；VSWR≤2.24, BW=262MHz,
31.6%) with LTE frequency ranges (1.71-2.60GHz, VSWR≤2.24, BW=890MHz, 41.3%)；2nd, ultralow section, height
Less than 0.1 λL；3rd, ± 45 ° or H/V dual-linear polarizations, high cross polarization ratio (XPD>20dB) and high-isolation (| S21|<-
40dB)；4th, directed radiation, gain is higher (G=6.1-9.1dBi)；5th, the higher (η of efficiencyA>=78%).
In addition, this method also has thinking novelty, clear principle, method is pervasive, realization is simple, inexpensive, suitable batch
The features such as production, be the preferred scheme for replacing conventional broadband Small cell antennas, and for conventional broadband cross oscillator day
The design and improvement of line are also to be applicable and effective.
【Brief description of the drawings】
The schematic diagram that the rectangular coordinate system that Fig. 1 is used by antenna model is defined.
Fig. 2 is the top view of low section fat piece of cross oscillator model of element of double frequency ultra wide band.
Fig. 3 is the top view of low section double frequency ultra wide band cross oscillator cell edges open arc shape channel mould type.
Fig. 4 is vertical view of the low section double frequency ultra wide band cross oscillator cell end without the model of concentric bicircular arcs linkage section
Figure.
Fig. 5 is the top view of low section double frequency ultra wide band cross oscillator unit radiant body complete model.
Fig. 6 is low section double frequency ultra wide band cross oscillator element antenna without coaxial feeder model top view.
Fig. 7 is low section double frequency ultra wide band cross oscillator element antenna without coaxial feeder model scenograph.
Fig. 8 is front view of the low section double frequency ultra wide band cross oscillator element antenna with coaxial feeder model.
Fig. 9 is the front view of complete model of the low section double frequency ultra wide band cross oscillator element antenna with antenna house.
Figure 10 is the top view of the MIMO array of low section double frequency ultra wide band cross oscillator unit.
Figure 11 is the perspective view of the MIMO array of low section double frequency ultra wide band cross oscillator unit.
Figure 12 represents low section double frequency ultra wide band cross oscillator unit input impedance ZinFrequency characteristic.
Figure 13 represents the standing-wave ratio VSWR curves of low section double frequency ultra wide band cross oscillator unit.
Figure 14 represents the reflectance factor of low section double frequency ultra wide band cross oscillator unit | S11| curve.
Figure 15 represents the interport isolation of low section double frequency ultra wide band cross oscillator unit | S21| curve.
Figure 16 represents the low frequency f of low section double frequency ultra wide band cross oscillator unit1=0.698GHz gain patterns.
Figure 17 represents the low frequency f of low section double frequency ultra wide band cross oscillator unit2=0.96GHz gain patterns.
Figure 18 represents the high frequency f of low section double frequency ultra wide band cross oscillator unit3=1.71GHz gain patterns.
Figure 19 represents the high frequency f of low section double frequency ultra wide band cross oscillator unit4=2.17GHz gain patterns.
Figure 20 represents the high frequency f of low section double frequency ultra wide band cross oscillator unit5=2.60GHz gain patterns.
Figure 21 represents the E/H- faces half-power beam width HBPW of low section double frequency ultra wide band cross oscillator unit with frequency f
Variation characteristic.
Figure 22 represents the real gain of the maximum of low section double frequency ultra wide band cross oscillator unit with frequency f variation characteristics.
Figure 23 represents the efficiency eta of low section double frequency ultra wide band cross oscillator unitAWith frequency f change curves.
This paper accompanying drawings are, for being expanded on further and understand to the present invention, and to constitute a part for specification, with this
The specific embodiment of invention is used to explain the present invention together, but is not construed as limiting the invention or limits.
【Embodiment】
The preferred embodiment of patent of invention is provided below in conjunction with the accompanying drawings, to describe technical scheme in detail.Here,
Respective drawings will be provided, and the present invention is described in detail.It should be strongly noted that as described herein be preferable to carry out example
It is merely to illustrate and explain the present invention, is not limited to or limits this present invention.
Fig. 1~11 are referred to, the design method of the low section double frequency ultra-wideband antenna comprises the following steps：
Low section double frequency ultra-wideband antenna of the present invention, the design method of the low section double frequency ultra-wideband antenna is including following
Step：
Step one, rectangular coordinate system in space is set up, Fig. 1 is seen；
Step 2, constructs double frequency ultra wide band oscillator unit：First, in XOY plane, centered on origin of coordinates O, along+
A pair of 45 ° of directional structure vectorical structures are with centrosymmetric fat block ultra wide band oscillator 10, and the fat block half-wave a period of time 10 is using center to begin
Point extends along+45 ° of directions, and then width increase reduces last end and draw in again；Then the half-wave a period of time 10 is rotated about the z axis
+ 90 °, copy -45 ° of ultra wide band oscillators 20, two pairs of oscillators constitute the ultra wide band cross oscillator pair of low frequency (GSM frequency ranges), and with
Center is distributing point, sees Fig. 2；
Step 3, in ultra wide band oscillator edge fluting：In the ultra wide band oscillator two-arm end of step 2, one is opened along edge
The elongated deep-slotted chip breaker 24 of bar, deep-slotted chip breaker is symmetrical on oscillator ± 45 ° central axis, and top is located on axis and protruded outwardly, such as
Protuberance 22 shown in Fig. 3, bottom 21 then extends to its middle part along oscillator arms edge, then, right in the nearly centre position of deep-slotted chip breaker
Claim loading a pair of stubs 23, the inside and outside wall of deep-slotted chip breaker 24 is connected, Fig. 3 is seen；
Step 4, the loading of ultra wide band oscillator terminal open circuit：In the ultra wide band oscillator end of step 3, along oscillator arms outside
Edge loads one section of arc minor matters 32, and arc minor matters are symmetrical also with regard to ± 45 ° of central axis, initiating terminal wider width and centre is opened
Cannelure 33, end 34 is then slightly narrow and extends at step 3 deep-slotted chip breaker terminal position and disconnects, the ends of adjacent arc minor matters it
Between there is gap 63, be parallel two-conductor section 31 in open circuit minor matters original position, with arc section 41,42 by symmetrical arc then
Minor matters are connected to short circuit, see Fig. 4；
Step 5, ultra wide band oscillator central coaxial feed：In two pairs of cross oscillator centers of step 4, one is set to align
The distributing point of friendship, two distributing points connect a 50 Ω coaxial cables respectively, and cable inner conductor 53,54 and outer conductor 51,52 are distinguished
Oscillator two-arm is connected, Fig. 5,8,9 are seen；
Step 6, sets antenna medium substrates：In the oscillator lower surface of step 5, it is ε to set one layer of dielectric constantr, damage
Consumption angle is that tan δ, thickness are TdMedium substrate 70, for supporting antenna and adjusting its impedance, see Fig. 6,7；
Step 7, sets metallic reflection plate：In the side of oscillator medium substrate 70 of step 6, one block of big metal is placed anti-
Plate 90 is penetrated, to realize oscillator directed radiation, Fig. 9 is seen；
Step 8, antenna MIMO group battle arrays：By above-mentioned low section double frequency ultra wide band oscillator unit, a fundamental radiation is used as
Unit constitutes MIMO array, to improve service system capacity and network data rate, sees Figure 10,11；；
Step 9, adds antenna house：One layer of medium shell layer is set in the top surface close to printing oscillator, antenna house 80 is used as
To protect antenna radiator, antenna house corner is arc chord angle 81, sees Fig. 9~11.
Low section double frequency ultra-wideband antenna of the present invention as obtained by above-mentioned structure, in the present embodiment, it includes two
Double frequency ultra wide band oscillator unit constitutes MIMO array, and the double frequency ultra wide band oscillator unit is printed on a pair of orthogonal on medium substrate
The ultra wide band oscillator 10,20 of setting, the two-arm of each ultra wide band oscillator is fat bulk, and the ultra wide band oscillator two-arm end is along both sides
Edge has deep-slotted chip breaker 24, loads one section of arc minor matters 32 along oscillator arms outward flange in ultra wide band oscillator end, center is handed over
Distributing point connecting coaxial cable is provided with fork.The two-arm of the ultra wide band oscillator is symmetrical along ± 45 ° of central axis, deep-slotted chip breaker also on
± 45 ° of central axis are symmetrical.The double frequency ultra wide band oscillator unit is arranged in antenna house 80, and the antenna house corner is rounding
81.The distributing point connects two 50 Ω coaxial cables, and cable internal and external conductor 51,52,53,54 connects the two-arm of oscillator respectively.
Specifically, the top of the deep-slotted chip breaker 24 is located on ± 45 ° of axis and has protuberance 22 outwardly, and bottom 21 is along oscillator arms side
Edge extends to its middle part；In nearly a pair of stubs of centre position asymmetrical load 23 of deep-slotted chip breaker, the inside and outside wall of deep-slotted chip breaker is connected.
The initiating terminal of arc minor matters 32 is parallel two-conductor section 31, and original position is entered provided with two sections of concentric circles segmental arcs 41,42
Row short circuit connection, the concentric circles segmental arc is symmetrical on ± 45 ° of central axis.Arc minor matters interlude wider width, and open longitudinal direction
Groove 33, end 34 is then slightly narrow and extends at deep-slotted chip breaker terminal position and disconnects, and there is gap between the end of adjacent arc minor matters
63.The arc minor matters are symmetrical also with regard to ± 45 ° of central axis.The deep-slotted chip breaker, short-circuit minor matters are moved towards substantially with oscillator edge
It is parallel, short-circuit minor matters and marginating compartment a certain distance.
The dielectric constant of the medium substrate is εr=1~20, loss angle is that tan δ, thickness are Td=0~0.25 λL。λL
For low-limit frequency wavelength.Reflecting plate is provided with the side of the medium substrate, beeline of the reflecting plate away from medium substrate is less than
0.25·λL。
Low section double frequency ultra-wideband antenna of the present invention obtains the technique effect being difficult to compared with prior art：First,
Double frequency ultra wide band, while covering GSM (0.698-0.96GHz；VSWR≤2.24, BW=262MHz, 31.6%) and LTE frequency ranges
(1.71-2.60GHz, VSWR≤2.24, BW=890MHz, 41.3%)；2nd, ultralow section, highly less than 0.1 λL；3rd, ±
45 ° of dual-linear polarizations, high cross polarization ratio (XPD>20dB) and high-isolation (| S21|<-40dB)；4th, directed radiation, gain is higher
(G=6.1-9.1dBi)；5th, greater efficiency (ηA>=78%).Concrete property curve and parameter refer to Figure 12~23.
Figure 12 represents the input impedance Z of low section double frequency ultra wide band cross oscillator unitinFrequency characteristic.Wherein, it is horizontal
Axle (X-axis) is frequency f, and unit is GHz；The longitudinal axis (Y-axis) is impedance Zin, unit is Ω；Solid line represents real part Rin, dotted line represents
Imaginary part Xin.Known by figure, in 0.698-0.96/1.71-2.60GHz frequency ranges, real and imaginary parts excursion is respectively：35~40
Ω, -30~10 Ω and 30~110 Ω, -25~38 Ω, with preferable double frequency ultra wide band impedance operator.
Figure 13 represents the standing-wave ratio VSWR curves of low section double frequency ultra wide band cross oscillator unit.Wherein, transverse axis (X-axis) is
Frequency f, unit is GHz；The longitudinal axis (Y-axis) is VSWR.Known by figure, antenna is in GSM 0.698-0.96GHz frequency ranges (BW=
262MHz, 31.6%) and LTE 1.71-2.60GHz frequency ranges (BW=890MHz, 41.3%), preferable impedance matching is realized,
Standing-wave ratio VSWR≤2.24, it is minimum up to 1.24；Two frequency range relative bandwidths are respectively 31.6% and 41.3%, realize double frequency ultra-wide
Bandwidth.
Figure 14 represents the reflectance factor of low section double frequency ultra wide band cross oscillator unit | S11|/|S22| curve.Wherein, it is horizontal
Axle (X-axis) is frequency f, and unit is GHz；The longitudinal axis (Y-axis) is S11/S22Amplitude | S11|/|S22|, unit is dB.Known by figure, day
Line is in GSM 0.698-0.96GHz frequency ranges (BW=262MHz, 31.6%) and LTE 1.71-2.60GHz frequency ranges (BW=
890MHz, 41.3%), realize preferable impedance matching, reflectance factor | S11|≤- 8.0, it is minimum to reach -19.6dB；Two frequency range phases
It is respectively 31.6% and 41.3% to bandwidth, realizes double frequency ultra wide bandwidth.
Figure 15 represents the interport isolation of low section double frequency ultra wide band cross oscillator unit | S21| curve.Wherein, transverse axis (X
Axle) it is frequency f, unit is GHz；The longitudinal axis (Y-axis) is S11Amplitude | S11|, unit is dB.Known by figure, in the whole frequency range of antenna,
Isolation, which is more than in -40dB, low-frequency range, is better than -53dB, and interport isolation is ideal.
Figure 16 represents the low frequency f of low section double frequency ultra wide band cross oscillator unit1=0.698GHz gain patterns.Its
In, fair line represents E faces, and dotted line represents H faces, and solid line represents main polarization, and dotted line represents cross polarization.Known by figure, E, H face wave beam
It is wider, and cross polarization XPD in main lobe>45dB, polarization purity is very high.
Figure 17 represents the low frequency f of low section double frequency ultra wide band cross oscillator unit2=0.96GHz gain patterns.Wherein,
Fair line represents E faces, and dotted line represents H faces, and solid line represents main polarization, and dotted line represents cross polarization.Known by figure, E, H face wave beam are equal
It is wider, and cross polarization XPD in main lobe>47dB, polarization purity is very high.
Figure 18 represents the high frequency f of low section double frequency ultra wide band cross oscillator unit3=1.71GHz gain patterns.Wherein,
Fair line represents E faces, and dotted line represents H faces, and solid line represents main polarization, and dotted line represents cross polarization.Known by figure, H faces wave beam is wider,
And cross polarization XPD in main lobe>30dB, polarization purity is higher.
Figure 19 represents the high frequency f of low section double frequency ultra wide band cross oscillator unit4=2.17GHz gain patterns.Wherein,
Fair line represents E faces, and dotted line represents H faces, and solid line represents main polarization, and dotted line represents cross polarization.Known by figure, H faces wave beam is very wide,
And cross polarization XPD in main lobe>35dB, polarization purity is very high.
Figure 20 represents the high frequency f of low section double frequency ultra wide band cross oscillator unit5=2.60GHz gain patterns.Wherein,
Fair line represents E faces, and dotted line represents H faces, and solid line represents main polarization, and dotted line represents cross polarization.Known by figure, E/H faces wave beam shape
Shape is about the same, and cross polarization XPD in main lobe>20dB, polarization purity is higher.
Figure 21 represents the E/H- faces half-power beam width HBPW of low section double frequency ultra wide band cross oscillator unit with frequency f
Variation characteristic.Wherein, transverse axis (X-axis) is frequency f, and unit is GHz；The longitudinal axis (Y-axis) is beam angle, unit degree of being (deg)；It is real
Line represents E faces, and line represents H faces.To be known by figure, in low high frequency band, E/H faces half-power ripple is wide HPBW=56.57 °~60.65 ° (E)/
73.2 °~88.2 ° (H) and 21.5 °~46.0 ° (E)/35.1 °~128.5 ° (H), ripple is wide to be conducive to signal to cover.
Figure 22 represents the real gain of the maximum of low section double frequency ultra wide band cross oscillator unit with frequency f variation characteristics.Wherein,
Transverse axis (X-axis) is frequency f, and unit is GHz；The longitudinal axis (Y-axis) is gain, and unit is dBi.Known by figure, in low frequency and high band, increased
Beneficial excursion is respectively G=7.8~9.1dBi, G=6.1~8.6dBi, and higher gain is maintained in double ultratvide frequency bands.
Figure 23 represents the efficiency eta of low section double frequency ultra wide band cross oscillator unitAWith frequency f change curves.Wherein, transverse axis
(X-axis) is frequency f, and unit is GHz；The longitudinal axis (Y-axis) is efficiency.Known by figure, in low frequency and high band, antenna efficiency has respectively
ηA>=78% and ηA>=80%.
The preferred embodiment of the present invention is these are only, the present invention is not limited to or limits.For grinding for this area
Study carefully or technical staff for, the present invention can have various modifications and variations.Within the spirit and principles of the invention, made
Any modification, equivalent substitution and improvements etc., should be included within the protection domain that the present invention is stated.
Claims (10)
1. a kind of low section double frequency ultra-wideband antenna, it is characterised in that it includes at least one double frequency ultra wide band oscillator unit, should
Double frequency ultra wide band oscillator unit includes the ultra wide band oscillator that a pair of orthogonal is set being printed on medium substrate, and each ultra wide band shakes
The two-arm of son is fat bulk, and the ultra wide band oscillator two-arm end offers deep-slotted chip breaker along both sides of the edge, and at ultra wide band oscillator end
End loads along oscillator arms outward flange and distributing point connecting coaxial cable or balun is provided with one section of arc minor matters, central crossbar.
2. low section double frequency ultra-wideband antenna as claimed in claim 1, it is characterised in that be located at ± 45 ° at the top of the deep-slotted chip breaker
Protrude on axis and outwardly, bottom extends to its middle and lower part along oscillator arms edge.
3. low section double frequency ultra-wideband antenna as claimed in claim 2, it is characterised in that in the nearly centre position pair of deep-slotted chip breaker
Claim loading a pair of stubs, connect the inside and outside wall of deep-slotted chip breaker.
4. low section double frequency ultra-wideband antenna as claimed in claim 3, it is characterised in that the arc minor matters original position is provided with
Arc section, which opened in the middle of short-circuit connection, arc minor matters between cannelure, the end of adjacent arc minor matters, has gap.
5. low section double frequency ultra-wideband antenna as claimed in claim 4, it is characterised in that the two-arm edge of the ultra wide band oscillator ±
45 ° of central axis are symmetrical arranged, and deep-slotted chip breaker is symmetrical on ± 45 ° of central axis, and arc minor matters are also with regard to ± 45 ° of central axis
Symmetrically.
6. low section double frequency ultra-wideband antenna as claimed in claim 1, it is characterised in that the dielectric constant of the medium substrate is
εr=1~20, thickness is Td=0~0.25 λL, λLFor low-limit frequency wavelength.
7. low section double frequency ultra-wideband antenna as claimed in claim 1, it is characterised in that be provided with the side of the medium substrate
Reflecting plate.
8. the low section double frequency ultra-wideband antenna as described in any one of claim 1~7, it is characterised in that it further comprises
Antenna house, the double frequency ultra wide band oscillator unit is arranged in antenna house.
9. low section double frequency ultra-wideband antenna as claimed in claim 8, it is characterised in that the antenna house corner be rounding or
Right angle.
10. the low section double frequency ultra-wideband antenna as described in claim 1~7 any one, it is characterised in that it includes two
Or double frequency ultra wide band oscillator unit composition MIMO array or conventional arrays described in two or more, it is placed in antenna house.
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| CN201710304396.2A CN107240769B (en) | 2017-05-03 | 2017-05-03 | Low-profile dual-frequency ultra-wideband antenna |
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| CN201710304396.2A CN107240769B (en) | 2017-05-03 | 2017-05-03 | Low-profile dual-frequency ultra-wideband antenna |
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| CN107240769A true CN107240769A (en) | 2017-10-10 |
| CN107240769B CN107240769B (en) | 2020-02-11 |
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| CN112514165A (en) * | 2018-07-31 | 2021-03-16 | 株式会社友华 | Antenna device |
| CN112751158A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Antenna assembly and communication equipment |
| CN113571881A (en) * | 2020-04-29 | 2021-10-29 | 江苏嘉华通讯科技有限公司 | Small-size ultra wide band MIMO antenna |
| CN113725596A (en) * | 2021-08-27 | 2021-11-30 | 华南理工大学 | Antenna and radiation unit |
| CN112514165B (en) * | 2018-07-31 | 2024-05-10 | 株式会社友华 | Antenna device |
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| CN109103574A (en) * | 2018-07-12 | 2018-12-28 | 广东通宇通讯股份有限公司 | Dual-band and dual-polarization element antenna |
| CN109103574B (en) * | 2018-07-12 | 2024-01-05 | 广东通宇通讯股份有限公司 | Dual-frequency dual-polarized oscillator antenna |
| CN112514165B (en) * | 2018-07-31 | 2024-05-10 | 株式会社友华 | Antenna device |
| CN112514165A (en) * | 2018-07-31 | 2021-03-16 | 株式会社友华 | Antenna device |
| CN110048211A (en) * | 2019-04-15 | 2019-07-23 | 深圳市信维通信股份有限公司 | Wideband multi-resonant 5G antenna system and base station |
| CN110048211B (en) * | 2019-04-15 | 2024-03-19 | 深圳市信维通信股份有限公司 | Broadband multi-resonance 5G antenna system and base station |
| CN112751158B (en) * | 2019-10-31 | 2022-05-17 | 华为技术有限公司 | Antenna assembly and communication equipment |
| CN112751158A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Antenna assembly and communication equipment |
| CN111180870B (en) * | 2020-01-06 | 2021-11-23 | 武汉虹信科技发展有限责任公司 | Antenna radiation unit, base station antenna and antenna index adjusting method |
| CN111180870A (en) * | 2020-01-06 | 2020-05-19 | 武汉虹信通信技术有限责任公司 | Antenna radiation unit, base station antenna and antenna index adjusting method |
| CN113571881B (en) * | 2020-04-29 | 2023-10-03 | 江苏嘉华通讯科技有限公司 | Small-size ultra-wideband MIMO antenna |
| CN113571881A (en) * | 2020-04-29 | 2021-10-29 | 江苏嘉华通讯科技有限公司 | Small-size ultra wide band MIMO antenna |
| CN113725596B (en) * | 2021-08-27 | 2023-11-21 | 华南理工大学 | Antenna and radiating element |
| CN113725596A (en) * | 2021-08-27 | 2021-11-30 | 华南理工大学 | Antenna and radiation unit |
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Denomination of invention: Low profile dual band ultra wideband antenna Effective date of registration: 20231206 Granted publication date: 20200211 Pledgee: China Co. truction Bank Corp Zhongshan branch Pledgor: TONGYU COMMUNICATION Inc. Registration number: Y2023980069635 |