CN109690871A - Antenna and radiating element for antenna - Google Patents
Antenna and radiating element for antenna Download PDFInfo
- Publication number
- CN109690871A CN109690871A CN201680084533.XA CN201680084533A CN109690871A CN 109690871 A CN109690871 A CN 109690871A CN 201680084533 A CN201680084533 A CN 201680084533A CN 109690871 A CN109690871 A CN 109690871A
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- China
- Prior art keywords
- radiating element
- lower plane
- plane
- pcb
- reflector
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
-
- 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
- H01Q13/10—Resonant slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
-
- 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
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to a kind of radiating elements, it include: conducting element, the conducting element includes lower plane, the side wall extended from the edge of the lower plane, at least the first and second non-conductive slot, each non-conductive slot is at least partly on the lower plane, and the top edge of the side wall is extended to from the lower plane along the side wall, wherein the radiating element is configured as being arranged on the reflector of antenna by support construction, and the lower plane is maintained at the preset distance of the reflector by the support construction；The invention further relates to a kind of antennas for base station, including reflector and multiple radiating elements according to any one of the preceding claims, wherein the lower plane of the conducting element of the multiple radiating element is supported at the preset distance of the reflector.
Description
Technical field
The present invention relates to a kind of radiating elements and a kind of antenna including multiple this radiating elements.Specifically, the day
Line can be the antenna of base station.
Background technique
As antenna and radio Deep integrating are (for example, active antenna system (the Active Antenna of base station
System, AAS)) demand continuous growth, it is desirable that reduce the depth of ultra-wideband antenna and refer to without influencing antenna key performance
Mark.
Antenna-, which is wirelessly electrically integrated, leads to highly complex system, and is influenced for commercial field deployment strongly to pass
Important antenna form factor.In this context, main restricted technical factor first is that the height of antenna.Reduce antenna
Height means to greatly simplify the integral deployment process of AAS and traditional passive antenna system.
When considering radiating element performance, the reduction of height naturally means the phase covered with acceptable RF performance
Bandwidth will be reduced.Coverage criteria working band and same radio frequency performance is kept in modern base station antenna system, again spoke
The height for penetrating element is lower, must just develop the new design/framework different from traditional technology.
Other than low profile (low profile)/broadband character, new radiating element should be suitble in multiband environment
Lower work, it means that its geometry must be transparent for remaining frequency band.Specific to lower band (from 690 to
960MHz), in order to maximumlly using the available space in antenna aperature, need to combine the radiating element of different operation frequency band,
Such as combine the radiating element of lower band and high frequency band (such as from 1400 to 2700MHz).
However, if the radiating element of different frequency bands is combined in individual antenna system, structure, in particular for
The structure of radiating element feed just becomes complicated, and total height is still a problem.Therefore, there is still a need for having ultra wide band
Characteristic (this means that bandwidth is 30% or more), ultra-low profile characteristic and the radiating element for combining different frequency bands it is suitable
The radiating element of shape.In addition, the feed structure of radiating element should simplify.
Summary of the invention
The object of the present invention is to provide radiating elements and antenna, wherein the radiating element and antenna overcome in the prior art
One or more above problems.
The first aspect of the present invention provides a kind of radiating element, comprising:
Conducting element, comprising:
Lower plane, the side wall extended from the edge of the lower plane；At least the first and second non-conductive slot, it is each non-conductive
Slot extends to along the side wall top edge of the side wall at least partly on the lower plane from the lower plane,
Wherein the radiating element is configured as being arranged on the reflector of antenna by support construction, the support knot
The lower plane is maintained at the preset distance of the reflector by structure.Specifically, the conduction with lower plane and side wall
Element provides cup-like shape, and the shape allows to include other radiating elements for higher frequency band inside conducting element.Cause
This, the radiating element can be used for multiband antenna.In addition, ground capacity is reduced by providing preset distance to reflector,
This provides the broadband character of the radiating element.Relative bandwidth can achieve 30% or more.
In the first embodiment of the radiating element according to first aspect, the support construction be configured as with
The radiating element is supported on the reflector by the preset distance between the lower plane and the reflector.The support
Structure provides the preset distance to the reflector.The support construction may include that two or more distances are kept
Device, for example, the corner of radiating element is arranged in.It is described can be by dielectric material or any other isolated material apart from retainer
It is made.Optionally, the support construction can also include a single-piece being preferably provided in the wherein heart, and can also include leading
Electric material.The support construction may include one or more printed circuit boards, described according to further preferred embodiment
Printed circuit board can also include the microstrip line of the feed system of the radiating element.
In second of embodiment of the radiating element described in the first embodiment according to first aspect, the branch
Support structure is configured such that the preset distance is at least λc/ 25, wherein λcIt is the center of the working band of the conducting element
Wavelength under frequency.Simulation result shows the λ to earth plate (for example, reflecting plate)c/ 25 preset distance, preferred λc/
15, it is suitable for keeping the broadband character of the radiating element.
In the third embodiment party of the radiating element according to any embodiment of first aspect and first aspect
In formula, the minimum area of the lower plane (12) is the upper plane (14) of upper edge of the radiating element in the side wall
At least the 25% of the gross area, or be 40% or more.Minimum value by allowing the lower plane area is the upper area of plane
25%, suitable impedance can be provided along slot in lower plane.Therefore, because lower plane area is the 25% of the upper area of plane,
The feeding point of slot can be set in the flatness layer close to lower plane.
In 4th kind of embodiment of the radiating element described in the third embodiment according to first aspect, the slot
Extend also along the upper plane.Since the slot extends in the upper plane, the short circuit of the slot is avoided.
In the 5th kind of embodiment party of the radiating element according to any embodiment of first aspect and first aspect
In formula, the radiating element has at least two feeding points, and at least two feeding point is excellent in the region of the lower plane
Selection of land is in the region of the region closer to the edge of the lower plane at the center compared to the lower plane across the slot.It will
The feeding point setting is that feed system can be set in the planes, allow in the lower plane across the advantages of slot
The construction of feed system is simplified.Specifically, feed line can be set on flat PCB, and the PCB is mounted on such as institute
On the bottom side for stating the lower plane of conducting element.Due to increasing along the impedance of slot when the center far from lower plane is mobile, so
Feeding point is preferably set to closer to the edge of the lower plane rather than the center of the lower plane.
In 6th kind of embodiment of the radiating element described in the 5th kind of embodiment according to first aspect, the spoke
Penetrate element further include: first transmission line forms the first feeding point at least two feeding point across first slot；
And second transmission line, the second feeding point at least two feeding point is formed across second slot.Due to the feedback
Electricity point is that construction feeding point does not need by providing across the individual transmission line of the slot, and on the conducting element
Any welding is carried out, so the structure is easily fabricated.For example, in another embodiment, can be used cable-fed.It is described
The inner conductor of cable is soldered on the small lug connecting with the side of slot, and the outer conductor of the cable be soldered to it is described
The opposite side of slot.However, cable solution is more expensive, because welding is difficult to automate.In addition, conducting element is needed by solderable
Connect that material is made or plating is at solderable, which increase costs.
In 7th kind of embodiment of the radiating element described in the 6th kind of embodiment according to first aspect, the spoke
Penetrating element further includes the printed circuit board (PCB) that the lower plane is arranged in, wherein the PCB includes forming first transmission
First microstrip line of line and the second microstrip line for forming the second transmission line.According to this embodiment, feed system setting
On the PCB for being mechanically connected to lower plane.The solution have cost-effectiveness because flat PCB can be used rather than
As previously mentioned, handling the cable that must be secured and electrically connected to conducting element.
It is described in 8th kind of embodiment of the radiating element described in the 7th kind of embodiment according to first aspect
PCB includes the ground plane on opposite sides in the microstrip line, the ground plane and the lower plane capacitive coupling.It is described
Radiating element is used as the subreflector of the higher frequency radiating element in (cup-shaped) conducting element for radiating element.In order to incite somebody to action
Higher frequency radiating element ground connection inside the conducting element is set, the ground plane on the PCB can be used.
In the 9th kind of embodiment party of the radiating element according to any embodiment of first aspect and first aspect
In formula, the conducting element further includes the fin that the direction of the height from the edge of the upper plane to the lower plane extends,
Wherein the slot extends in the fin.The fin in the radiating element turning makes the radiating element very tight
It gathers, to reduce shade and the interference of other frequency bands when the radiating element is configured for multiband antenna.
In the tenth kind of embodiment party of the radiating element according to any embodiment of first aspect and first aspect
In formula, the conducting element is made of single-piece, preferably curved aluminium flake.In this embodiment, only due to radiating element
Including single curved sheet metal, it is possible to easily manufacture.Why preferred aluminium, be due to light weight and cost efficiency
It is high, easy to process and have good electrical property.
In a kind of the tenth implementation of the radiating element according to any embodiment of first aspect and first aspect
In mode, the lower plane has central opening.The central opening of this embodiment can be used for the support of feed system
Structure is included in described (cup-shaped) conducting element to support another internal radiating element.In addition, the opening can also be used
In the support construction of the conducting element, to keep preset distance with reflector.
In the 12nd kind of implementation of the radiating element according to any embodiment of first aspect and first aspect
In mode, the radiating element further includes the second internal radiating element on the inside of the conducting element, wherein the conductive element
Part is configured to work in the first frequency band, and the internal radiating element on the inside of the conducting element is configured to be higher than
It works in the second band of the first band.By including the radiating element in lower frequency by the radiating element of upper frequency
Inside, whole installation most preferably save space.In addition, external low-frequency band radiating element is also used as upper frequency
Under internal radiating element reflector.
In the 13rd kind of embodiment of the radiating element according to the 12nd kind of embodiment, when depending on first
When a kind of ten embodiment of aspect, the internal radiating element includes that the opening is extended through in the lower plane
Support construction.Therefore, the opening in the lower plane provide the advantage of internal spoke member penetrate part by mechanical support and at the same time
The opening can be used for that feed line is allowed to penetrate internal radiating element.
In the 14th kind of embodiment of the 13rd kind of embodiment of first aspect, the institute of the internal radiating element
Stating support construction includes at least one, the PCB of preferably two intersections, wherein one or two PCB include leading for described
Electric device and/or feed line for the internal radiating element.The PCB of two intersections has the advantage, that they can be same
When for external low frequency band radiating element and internal high frequency radiating element feed system is provided.
15th kind of reality of any embodiment in the 12nd kind to the 14th kind embodiment of first aspect
It applies in mode, the interior radiating element includes another PCB, and another PCB is arranged at another preset distance of the lower plane
(on the direction opposite with the first preset distance).Or in other words when the radiating element is arranged on reflecting plate, it is described
Lower plane is generally arranged between the reflector and another PCB of the internal radiating element.In addition, being preferably implemented
In example, reflector, lower plane and another PCB are configured to parallel to each other.
In the 16th kind of embodiment of any embodiment in the 12nd kind to the tenth kind five embodiments, institute
State internal radiating element have identical height is substantially in the upper plane or lower than the dipole structure of the upper plane.
By being arranged the dipole structure of the internal radiating element identical or lower as plane on external low frequency band radiating element
Height, provide the advantage that height on reflector is minimum." substantially " word can serve to indicate that each layer of deviation
No more than ± 10mm.
The second aspect of the present invention is related to a kind of antenna for base station, before the antenna includes reflector and multiple bases
Radiating element described in any one of claim is stated, wherein the radiating element is arranged on the reflector, so that described
The lower plane of the conducting element of multiple radiating elements is supported at the reflector preset distance.The advantage of the antenna exists
In: it can be used in the multiband configuration with low-frequency band ultra wide band characteristic (relative bandwidth > 30%) and ultra-low profile characteristic.
The shape of the radiating element is suitable for the radiating element of upper frequency being mounted on inside, while feed system is simplified.
Detailed description of the invention
Technical characteristic in order to illustrate the embodiments of the present invention more clearly, below will be to providing to describe the attached of embodiment
Figure is briefly described.Attached drawing in being described below is only some embodiments of the present invention, but is not departing from claim
Defined by the case where the scope of the present invention, can modify to these embodiments.
Fig. 1 shows the perspective view of the radiating element of first embodiment of the invention.
Fig. 2 shows the side views of the radiating element of the second embodiment on reflector.
Fig. 3 shows the side view of the conducting element of the radiating element of Fig. 1 or Fig. 2.
Fig. 4 shows the perspective view of the conducting element of Fig. 3, indicates impedance along the differentiation of slot.
Fig. 5 shows the perspective view of the bottom side of the embodiment of the radiating element of the feed system including PCB form.
Fig. 6 shows the perspective view to form another embodiment of the invention of dual-band radiating elements part.
Fig. 7 shows the top view of the antenna of the radiating element including Fig. 6 of another embodiment of the invention.
Specific embodiment
Fig. 1 shows the first embodiment of radiating element according to the present invention.Radiating element include by curved sheet metal,
Especially conducting element 2 made of aluminium flake.Conducting element includes the slot 4 of four every 90 ° of settings one in conducting element.It is preferred that
Ground, each slot are fed with identical phase and amplitude to carry out 2 × 2, and pair as described below is realized in the combination of the phase and amplitude
Linear polarization radiation.Only there are two the combinations inputted will generate a polarization pole in two opposite slots, and another two is opposite
The combination of slot generates orthogonal polarization pole.However, other embodiments of the invention can also only include a polarization pole,
That is, only two slots.
As shown in Figure 1, conducting element is supported by support construction, in the present embodiment, the support construction includes four Jie
Electrical distance retainer 6, the dielectric are configured as the table in the reflector (not shown in figure 1) of antenna configuration apart from retainer 6
Conducting element 2 is supported on face.Support construction is configured as conducting element 2 being maintained at reflecting plate into specified distance.
Fig. 2 shows the second embodiment of radiating element, the radiating element is included in reflector 10 to form antenna,
Wherein conducting element 2 is similar to the conducting element 2 of first embodiment.In this case, it will be radiated using single supporting member
Element is maintained on the top of reflector 10.In general, support construction can be formed by any isolated material, the support construction quilt
It is configured to for radiating element being maintained at reflector surface into specified distance.In addition, the support construction of Fig. 2 can be used for for
Radiating element feed.Such as.Support construction can be PCB or MID.In addition, in order to give the embodiment in Fig. 2 higher stabilization
Property, dielectric as shown in Figure 1 can be added in embodiment shown in Fig. 2 apart from retainer 6.
In this illustration, total height of the radiating element away from reflecting plate is only about 0.125 × λ, and wherein λ is radiating element
Wavelength under lowest operating frequency.It is thereby achieved that voltage standing wave ratio (voltage standing wave ratio,
VSWR) it is lower than 1.35 in 32% relative bandwidth.
The conducting element 2 of the first and second embodiments in Fig. 1 and Fig. 2 is shown as single component by Fig. 3.The component packet
Include 12 He of lower plane connected by side wall 11 (formed, and conductively connected to each other by the conductive material of the conducting element respectively)
Upper plane 14.In this way, conducting element 2 takes cup-form, this allows for that another spoke is arranged in the inside configuration
Element is penetrated, as described below in connection with Figure 6.
In general, radiating element cross-slot 4 is fed.As shown in figure 4, when moving feeding point along slot 4, the impedance of radiating element
Change.
Feeding point is mobile towards the center of radiating element, then impedance reduces, and just the slot section start at center reaches short circuit
Value.On the other hand, when the outside by feeding point towards radiating element is moved close to the edge of lower plane 12, then impedance is gradually
Increase.
It (and is also therefore away under in the specified distance of the section start away from each slot 4 in order to reasonable impedance value
The specified distance at the center of plane 12) radiating element is fed.In order to simplify feed system, in the embodiment of the present invention
In preferably four feeding points are arranged on common flat surfaces, that is, in the plane for being parallel to lower plane 12.In order to meet
These conditions, the lower plane 12 of the embodiment of radiating element have minimum area for the gross area of upper plane 14.It is excellent
Selection of land, the minimum value of 12 area of lower plane are the 25% or preferably 40% or more of the area of upper plane 14.
In order to feed and realize ultra wide band characteristic to radiating element in lower plane 12, in the lower plane of radiating element
There are a certain distance between 12 and reflector 10.Since the minimum area of lower plane is upper plane 14 25%, near reflex is leaned on
The conductive area of device 10 is very big, therefore has very strong ground capacity.However, the broadband character in order to realize radiating element, this
A capacitor should reduce.Since the minimum area of lower plane 12 is limited by 25%, so by using suitable support knot
Structure promotes radiating element on reflector to reduce ground capacity.Preferably, in an embodiment of the present invention, lower plane 12 with
Minimum range between reflector 10 is λc/ 25 or preferably λc/ 15, wherein λcIt is the center of the working band of radiating element
Wavelength at frequency.
Referring to Fig. 5, the feed system of radiating element is described.Feed system includes three printed circuits being set together
Plate (printed circuit board, PCB).The PCB 20 of two intersections is used as ground connection, mechanical support and includes for radiating
The feed line of element.3rd PCB 22 is configured to orthogonal with the PCB 20 intersected, and is attached to (but DC is isolated from) conductive element
The lower plane 12 of part.There are four microstrip lines 24 for 3rd PCB 22 tool.Each microstrip line 24 across top a slot 4 and to the slot
Feed.From figure 5 it can be seen that each microstrip line 24 in lower plane 12 along the perimeter of slot 4 across the slot 4.Specifically
Ground, microstrip line crossed slot 4 in the second outer half of the slot in lower plane 12.Transposition section between microstrip line 24 and slot 4 limits
As above-mentioned Fig. 4 context in the feeding point that is previously mentioned.Microstrip line 24 on 3rd PCB 22 intersects on PCB 20 with two
Microstrip line 26 connect.On the PCB 20 of intersection, the microstrip line 26 of two opposite slots 4 is joined together, and provides electricity
End line.Therefore, two opposite slots 4 can be fed by the electric signal with same-amplitude and same phase.For vertical orientation
Other two slot 4, in a symmetrical two intersect PCB 20 second PCB on identical setting is provided.
The PCB 20 of intersection extends through the central opening 18 of the lower plane 12 of conducting element 2.As shown in fig. 6, two friendships
The PCB 20 of fork can carry the PCB 30 of another setting orthogonal with PCB 20 that is intersecting.PCB 30 forms setting in cup-shaped conduction
Another internal radiating element inside element 2.Preferably, PCB 30 is arranged in essentially identical with the upper plane 14 of conducting element
In layer.PCB 30 includes the current-carrying part for constituting upper frequency radiating element, and the upper frequency radiating element is by equally setting
The microstrip line 32 set on the PCB 20 intersected at two is fed.In using frequency band of the PCB 30 as radiating element, due to
The size of conducting element on PCB 30, the frequency band are higher than the frequency band of conducting element 2.For example, conducting element 2 can from
It works in the low-frequency band of 690MHz to 960MHz, and internal radiating element 30 can be in the midband from 1427 to 2400MHz
Work.The further details of internal radiating element are applicant is identical, entitled " Ultra Broad Band Dual
Polarized Radiating Element for a Base Station the Antenna " (ultra wide band for antenna for base station
Double polarization radiating element) parallel copending European patent application in be described.
For the further details of internal radiating element, the disclosure herein being incorporated herein by reference is referred to.Compared with
High-frequency radiating element can be following any: dipole, patch, lock-up cycle antenna etc..
In the embodiment of dual-band radiating elements part as shown in FIG. 6, it is obvious that the radiating element of lower frequency
(that is, conducting element 2) also plays the role of subreflector for the radiating element (that is, PCB 30) of upper frequency.In order to will be compared with
High-frequency radiating element is grounded to its subreflector, has used PCB 22.PCB 22 includes conductive ground layer, and the conduction connects
Stratum ground connection, and be oppositely arranged with the layer of microstrip line 24.In addition, the ground plane of PCB 22 and 12 capacitive coupling of lower plane.It is logical
Often, the protection cap on the ground plane of PCB 22 may be used as the dielectric between lower plane 12 and ground plane, to avoid PCB 22
Ground plane and lower plane 12 between galvanic contact.Nevertheless, still can be in the lower plane of PCB 22 and conducting element 2
Spacer is provided between 12.Why PCB 22/capacitive coupling is isolated with lower plane 12DC, is in order to avoid with unstable
Metal generates inter-modulation components when connecting.
As described above, aforementioned radiation element is intended to work in multiband antenna framework, it means that in the same antenna
Multiple work are provided in the radiating element of different frequency bands.Fig. 7 shows the antenna of the setting of the multiband including radiating element
Embodiment.
The multiband setting of the antenna includes conducting element 2, and the conducting element 2 is led at (cup-shaped) as shown in FIG. 6
There is internal radiating element 30 inside electric device 2 (form is PCB radiator).Multiple this radiating elements are arranged in public reflection
On device 10.In addition, antenna includes other radiating element 30 ' between conducting element 2, it is configured similarly to inside above-mentioned
Radiating element 30.In addition, being additionally provided with the other radiation to work in 1710 to 2690MHz high frequency band on reflector 10
Element 40, preferably along and be parallel to the one or both sides of low-frequency band and midband radiating element and be arranged.
Obviously, in multiband framework as shown in Figure 7, available space is very limited.In order to reduce between different frequency bands
Interference and shade, the size of radiating element minimized.In order to minimize the radiating element of low-frequency band, conducting element
2 further comprise additional fin 19 as shown in Figures 1 to 6.By adding fin 19, the electricity for increasing radiating element is long
Degree, maintains small physical size, and minimizes the shade generated in remaining frequency band.
Fin 19 is arranged on the edge of upper plane 14 of conducting element 2, and is bent downwardly, and direction is perpendicular to upper plane
14.As shown in Figures 1 to 4, slot 4 extends through fin 19.
Mode the above is only the implementation of the present invention, the scope of the present invention is not limited to this.Those skilled in the art can
Easily to make any change or replacement.Therefore, protection scope of the present invention should be with the protection model of appended claims
Subject to enclosing.
Claims (18)
1. a kind of radiating element, comprising:
Conducting element (2), comprising:
Lower plane (12), the side wall (11) extended from the edge of the lower plane (12)；
At least the first and second non-conductive slot (4), each non-conductive slot at least partly on the lower plane (12),
And the top edge of the side wall (11) is extended to from the lower plane (12) along the side wall (11),
Wherein the radiating element is configured as being arranged in by support construction on the reflector (10) of antenna, the support knot
The lower plane (12) are maintained at the preset distance of the reflector (10) by structure.
2. radiating element according to claim 1, further includes:
The support construction is configured as will be described with the preset distance between the lower plane (12) and the reflector (10)
Radiating element is supported on the reflector (10).
3. radiating element according to claim 2, wherein the support construction is configured such that the preset distance extremely
It is less λc/ 25, wherein λcBe the working band of the conducting element centre frequency under wavelength.
4. radiating element according to any one of the preceding claims, wherein the minimum area of the lower plane (12) is institute
State radiating element the upper plane (14) of the upper edge of the side wall the gross area at least 25%, or be 40% or more.
5. radiating element according to claim 4, wherein the slot (4) extends also along the upper plane (14).
6. radiating element according to any one of the preceding claims, there are at least two feeding points, described at least two
Feeding point is preferably closer described in the region at the center compared to the lower plane (12) in the region of the lower plane
Across the slot (4) in the region at the edge of lower plane (12).
7. radiating element according to claim 6, further includes:
First transmission line, the first feeding point across first slot (4) to be formed at least two feeding point；With
Second transmission line, the second feeding point across second slot (4) to be formed at least two feeding point.
8. radiating element according to claim 7, further includes: the printing board PCB (22) of the lower plane is set,
Wherein the PCB (22) includes:
It forms the first microstrip line (24) of the first transmission line and forms the second microstrip line (24) of the second transmission line.
9. radiating element according to claim 8, wherein the PCB (22) is included in the opposite side of the microstrip line (24)
On ground plane, the ground plane and the lower plane (12) capacitive coupling.
10. radiating element according to any one of the preceding claims, wherein the conducting element further includes from described
The fin (19) that the edge of plane (14) extends to the direction of the height of the lower plane (12), wherein the slot (4) extends to
In the fin (19).
11. radiating element according to any one of the preceding claims, wherein the conducting element (2) is made of single-piece,
Preferably curved aluminium flake.
12. radiating element according to any one of the preceding claims, wherein the lower plane (12) has central opening
(18)。
13. radiating element according to any one of the preceding claims further includes second on the inside of the conducting element
Internal radiating element, wherein the conducting element is configured to work in the first frequency band, and on the inside of the conducting element (2)
The internal radiating element is configured to work in the second band for being higher than the first band.
14. the radiating element according to the claim 13 when being subordinated to claim 12, wherein the internal radiating element
It include the support construction that the opening (18) is extended through in the lower plane.
15. radiating element according to claim 14, wherein the support construction of the internal radiating element includes extremely
It is one few, the PCB (20) of preferably two intersections, wherein one or two PCB (20) include being used for the conducting element (2)
And/or the feed line for the internal radiating element.
16. radiating element described in any one of 3 to 15 according to claim 1, wherein the internal radiating element includes another
PCB (30), another PCB are arranged at the lower plane (12) another preset distance, and are preferably parallel to described lower flat
Face (12).
17. radiating element described in any one of 3 to 16 according to claim 1, wherein the internal radiating element has and institute
It states plane and lies substantially in identical height or the dipole structure below the upper plane.
18. a kind of antenna for base station, including reflector and multiple radiation according to any one of the preceding claims
Element, wherein the radiating element is arranged on the reflector, so that the conducting element of the multiple radiating element is lower flat
Face is supported at the reflector preset distance.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2016/057963 WO2017178037A1 (en) | 2016-04-12 | 2016-04-12 | Antenna and radiating element for antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109690871A true CN109690871A (en) | 2019-04-26 |
| CN109690871B CN109690871B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680084533.XA Active CN109690871B (en) | 2016-04-12 | 2016-04-12 | Antenna and radiating element for antenna |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3387706B1 (en) |
| CN (1) | CN109690871B (en) |
| BR (1) | BR112018067753B1 (en) |
| WO (1) | WO2017178037A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110959228A (en) | 2017-10-12 | 2020-04-03 | 华为技术有限公司 | Subreflector and feed device for dipoles |
| CN111201669B (en) | 2017-10-12 | 2021-07-16 | 华为技术有限公司 | Ultra-compact radiating element |
| CN107834183B (en) * | 2017-10-30 | 2023-12-05 | 华南理工大学 | Miniaturized dual-frequency dual-polarized filter antenna with high isolation |
| EP3794675B1 (en) * | 2018-06-29 | 2024-01-24 | Nokia Shanghai Bell Co., Ltd. | Multiband antenna structure |
| EP3852193A1 (en) * | 2020-01-20 | 2021-07-21 | CommScope Technologies LLC | Compact wideband dual-polarized radiating elements for base station antenna applications |
| CN113140893A (en) | 2020-01-20 | 2021-07-20 | 康普技术有限责任公司 | Compact broadband dual polarized radiating element for base station antenna applications |
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| EP2073309B1 (en) * | 2007-12-21 | 2015-02-25 | Alcatel Lucent | Dual polarised radiating element for cellular base station antennas |
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- 2016-04-12 EP EP16715555.5A patent/EP3387706B1/en active Active
- 2016-04-12 CN CN201680084533.XA patent/CN109690871B/en active Active
- 2016-04-12 WO PCT/EP2016/057963 patent/WO2017178037A1/en active Application Filing
- 2016-04-12 BR BR112018067753-1A patent/BR112018067753B1/en active IP Right Grant
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109690871B (en) | 2021-02-12 |
| EP3387706A1 (en) | 2018-10-17 |
| BR112018067753B1 (en) | 2022-11-16 |
| EP3387706B1 (en) | 2024-01-24 |
| BR112018067753A2 (en) | 2019-01-15 |
| WO2017178037A1 (en) | 2017-10-19 |
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