CN106972267A - A kind of space multistory phase shifter applied to antenna for base station - Google Patents
A kind of space multistory phase shifter applied to antenna for base station Download PDFInfo
- Publication number
- CN106972267A CN106972267A CN201710296382.0A CN201710296382A CN106972267A CN 106972267 A CN106972267 A CN 106972267A CN 201710296382 A CN201710296382 A CN 201710296382A CN 106972267 A CN106972267 A CN 106972267A
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- China
- Prior art keywords
- conductor
- phase shifter
- cavity
- layer
- feeding network
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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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
- H01P1/184—Strip line phase-shifters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The present invention relates to a kind of space multistory phase shifter applied to antenna for base station, including the interior conductor housing for setting multi-layer conductive cavity and the feeding network component in conductor cavity, the insulation assembly insulated with conductor housing；The space multistory phase shifter also includes being used to connect feeding network component and the transmission line insulated with conductor housing between adjacent two layers.Lower floor's feeding network of the present invention includes a first input port and two the first output ports, upper strata feeding network includes two four port networks, each four port network includes three the second output ports and second input port being connected with first output port by transmission line, four port network is the metallic conductor strip line provided with slow wave line or the microstrip line printed circuit board (PCB) provided with slow wave line, with bigger lower decline angle when phase shifter is applied to antenna for base station, angle is 0 20 °；The phase shifter has six radiant bodies, and about 0.7 meter of antenna length, highest-gain reaches 16.5dBi.
Description
Technical field
The present invention relates to communication device technical field, more particularly to a kind of space multistory phase shift applied to antenna for base station
Device.
Background technology
At present, electric tuning antenna of base station realizes that the downwards bevel beam of antenna for base station is adjusted by the phase shifter in beam-forming network
Section, has the advantages that angle of declination adjustable extent is big, precision is high, Pattern control good, strong antijamming capability, easily controllable.Therefore,
Phase shifter is one of antenna for base station necessary component, the device by changing antenna element between relative phase realize regulation day
The tilt angled down of line wave beam, so as to facilitate the optimization of communication network.
The Wave-packet shaping network design of existing antenna for base station all connects each sub- phase shifter element, or electricity consumption using cable
Cable thus makes whole feeding network contain the cable of various different lengths as a part for power splitter, must be protected during processing
Every cable length of card is accurate, and workman must weld with caution on request during welding, otherwise, and the uniformity of antenna radiation pattern is incited somebody to action not
To guarantee；Secondly, the length processing of different cables, classifies, management, these cables is installed in production also abnormal multiple
Miscellaneous, solder joint is especially more, and each solder joint is a factors of instability to complete machine, and excessive pad will greatly increase antenna
Cost is reprocessed in the influence factor of third order intermodulation, increase, improves production cost；In addition, the cable that existing antenna is used all is 141
Cable, these cable losses are larger, especially in high band, and the gain of antenna will be greatly lowered, and this must just design longer
Bigger antenna improves gain, thus adds cost again；Moreover, when a cable goes wrong, it will lead
Cause all results not right, damage probability is big, maintenance cost is high.
In summary, design it is a it is highly integrated, without using the phase shifter of cable be it is necessary, especially for
The multifrequency antenna for base station such as existing 610-960MHz, 1420-2690MHz and 3300-3900MHz.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of space multistory phase shifter applied to antenna for base station, should
Space multistory phase shifter has high reliability, high repeatability, filter with low insertion loss and high-gain, due to designing without using cable, reduces
The loss of cable, it is large-scale artificial that the appearance of the space multistory phase shifter eliminates the reliance on the production of antenna, significantly improves
Production efficiency, really realizes the production automation of antenna, and changing the traditional antenna enterprise of industry needs a large amount of artificial productions
Mode.More than 90% is up to using the antenna efficiency of this network；Relatively conventional antenna, gain improves 1-2dBi.
In order to realize the technique effect of the present invention, it is achieved using following technical scheme：
A kind of space multistory phase shifter applied to antenna for base station, including the interior conductor shell for setting upper and lower two layers of conductor cavity
Body and the feeding network component in every layer of conductor cavity, lower floor's feeding network located at lower floor's feeding network component include one
Individual first input port and two the first output ports；Upper strata feeding network located at upper strata feeding network component includes two four
Port network, each four port network includes three the second output ports and is connected with first output port by transmission line
Second input port；Four port network is for the metallic conductor strip line provided with slow wave line or provided with slow wave line
Microstrip line printed circuit board (PCB).
As a further improvement, the feeding network component includes the sub- phase shift for being used to adjust antenna for base station beam direction
Device assembly and the insulation assembly for supporting the sub- phase shifter package, the sub- phase shifter package include the feedback being connected with transmission line
Electric network and the dielectric device component being slidably connected with feeding network；The transmission line is in conductor shell body；The lower floor
Feeding network is metallic conductor strip line or the printed circuit board (PCB) provided with microstrip line.
As a further improvement, every layer of conductor cavity is integrally formed, and every layer of conductor cavity two ends are designed with being used to allow feedback
Electric network component into and out accent, conductor housing forms by multi-layer conductive cavity stack combinations or by metallic conductor section bar
It is integrally formed composition.
As a further improvement, the insulation assembly is dielectric substrate, the insulation in every layer of conductor cavity
Dielectric substrate is made up of the dielectric substrate A in this layer of conductor cavity and dielectric substrate B, located at this layer of conductor chamber
Internal dielectric substrate A and dielectric substrate B is respectively provided above the feeding network in this layer of conductor cavity
With it is following.
As a further improvement, the dielectric device component in one layer of conductor cavity is also fixedly connected with pull bar,
Insulation assembly in this layer of conductor cavity is fixedly connected with the feeding network in this layer of conductor cavity, is led located at the layer
Insulation assembly in body cavity body is fixedly connected with conductor housing.
As a further improvement, the feeding network in every layer of conductor cavity includes metallic conductor piece and led with metal
Multiple ports of body piece connection.
As a further improvement, each first output port and second input port are connected by a transmission line
Connect.
As a further improvement, the conductor case top offers the window being connected with top conductor cavity, institute
Window is stated including a window A and two windows B, each window B including being located at each second output end of four port networks
First window directly over mouthful and the second window directly over the input port of four port network second；Wherein, each window
Mouth B the second window connects also located at a transmission line being connected with the second input port of four port network and with the transmission line
The surface of the first output port connect；The conductor housing also includes the conductor provided with opening in every layer of conductor cavity
Dividing plate, this layer of conductor cavity is divided into interconnected left conductor cavity for conductor dividing plate in every layer of conductor cavity and the right side is led
Body cavity body；The side of dielectric substrate in every layer of conductor cavity is fixed with boss, and the boss, which is arranged in, to be located at
In the opening of this layer of conductor cavity inner wire dividing plate；The metallic conductor piece of feeding network in every layer of conductor cavity is located at a left side
In conductor cavity, right conductor is stretched into the port being connected with the metallic conductor piece in this layer of conductor cavity through left conductor cavity
In cavity.
As a further improvement, the conductor dividing plate includes the top conductor dividing plate in top conductor cavity and set
In lower floor's conductor dividing plate in lower floor's conductor cavity, top conductor cavity is separated into left top conductor cavity by top conductor dividing plate
With right top conductor cavity, lower floor's conductor cavity is separated into lower-left layer conductor cavity and bottom right layer conductor chamber by lower floor's conductor dividing plate
Body；Provided with logical hole at the top of the layer conductor cavity of bottom right, transmission line one end is in the layer conductor cavity of bottom right, and the other end passes through logical hole to stretch
Enter in right top conductor cavity.
As a further improvement, lower floor's conductor dividing plate is provided with one first opening and two second openings, upper strata
Conductor dividing plate passes through first provided with 12 the 3rd openings and two the 4th openings, first input port from lower-left layer conductor cavity
Opening is stretched into the layer conductor cavity of bottom right, and each first output port is stretched into from lower-left layer conductor cavity through one second opening
In the layer conductor cavity of bottom right；One the second output port of each four port network passes through one the 3rd from left top conductor cavity
Opening is stretched into right top conductor cavity, and the second input port of four port network is from left top conductor cavity through one the
Four openings are stretched into right top conductor cavity.
As a further improvement, first output port and second input connected by a transmission line
The projection of mouth in the horizontal direction is staggered, and the transmission line is connected with first output port and second input port respectively.
As a further improvement, the conductor housing also includes the guide ledges being fixed in every layer of conductor cavity,
Pull bar in the conductor cavity surrounds one and the guide ledges with the dielectric device component in the conductor cavity
The guide groove matched.
As a further improvement, the guide ledges in every layer of conductor cavity are two up and down, located at this layer of conductor
Pull bar in cavity is arranged in the cell body that left side wall, roof and the bottom plate of two guide ledges and the conductor cavity are surrounded.
As a further improvement, it is further opened with the conductor housing also solid on the pull bar in strip window, conductor cavity
Surely anchor is connected with, the anchor in conductor cavity is arranged in strip window and can moved back and forth along strip window, and described anchor is located at
Top conductor cavity, then the anchor in top conductor cavity and the pull bar in lower floor's conductor cavity pass through one first company
Socket part is connected；Or described anchor is located at lower floor's conductor cavity, anchor in lower floor's conductor cavity and located at top conductor cavity
Interior pull bar is connected by a first connecting portion；Or described upper and lower layer conductor cavity is provided with anchor, then is led located at upper strata
Anchor in body cavity body and the anchor in lower floor's conductor cavity are connected by a first connecting portion.
As a further improvement, the dielectric device component in every layer of conductor cavity includes at least one dielectric
Element, each dielectric device in this layer of conductor cavity is fixed with the pull bar in this layer of conductor cavity respectively to be connected
Connect, each dielectric device is provided with the feeding network and the dielectric device contact surface being used to adjust in this layer of conductor cavity
At least two how many breach of product；Each dielectric device is integrally formed by mold injection to be made.
As a further improvement, the dielectric constant values of the dielectric device component in every layer of cavity are set to when same
When moved further is located at the dielectric device component in each layer conductor cavity, the phase of the feeding network in each layer cavity can
Synchronous change.
As a further improvement, the dielectric device component in every layer of conductor cavity is left located at feeding network component
Side, the dielectric substrate and dielectric device component in every layer of conductor cavity are in left conductor cavity.
As a further improvement, the dielectric substrate is by polypropylene, polyethylene, polytetrafluoroethylene (PTFE), poly- 4- methyl
One or more materials in amylene -1 are made.
As a further improvement, the dielectric substrate is made up of expanded material.
As a further improvement, described upper and lower layer feeding network component can mutual reversing of position.
Present invention also offers a kind of space multistory phase shifter package, the phase shifter package is included described in any of the above-described
The three-dimensional phase shifter of the two spaces of interconnection, and the three-dimensional phase shifter of two spaces or so mirror alignment.
As a further improvement, the phase shifter package also includes anchor respectively with the three-dimensional phase shifter top of two spaces
The second connecting portion being fixedly connected.
The present invention compares prior art, has the beneficial effect that：
1) feeding network component is put into every layer of conductor cavity by the present invention, and adjacent two layers conductor is connected at transmission line
Feeding network component in cavity, forms space multistory feeding network, and script is in the feeding network point of same layer by this design
Into two parts, it is positioned in the conductor cavity that multiple identicals are overlapped mutually, reduces the width of whole phase shifter.Work as conductor
When cavity is two layers, the width of whole phase shifter reduces nearly 50%, and the thickness increase of phase shifter only 7mm, by the sky
Between three-dimensional phase shifter when being used for antenna for base station, because we have double space, enable us to have spatially integrate feeding network
In cable, replace cable using strip line etc., design the highly integrated Wave-packet shaping network of no cable, this height collection
Into Wave-packet shaping network, by the antenna for making us possess minimum solder joint, that is, improve antenna production efficiency with it is consistent
Property, reduce the volume nearly 50% of antenna again, save material, reduce cost, be also convenient for transport and flexibly arrange net to use.
2) as a highly integrated metal band-shaped line (or printed circuit board (PCB) provided with microstrip line) made in one piece
Feeding network, when applying to antenna for base station, it is thus only necessary to weld its company for leading defeated feeder line and input port, oscillator and feeding network
Port is connect, therefore, using the antenna of this technology, its number of welds is by the solder joint number of far smaller than rival's antenna, in production
When reduce the probability of intermodulation generation, intermodulation first-pass yield when improving antenna production, and the uniformity of standing wave is also fine.
3) when space multistory phase shifter is used for antenna for base station, because part realizes modularization, the assembling of this antenna
To be very simple, compared to antenna of the prior art, it is necessary to which less assembling workman, due to not needing cable, compares
In prior art, it is not necessary to cut the cable of many kinds of different lengths, it is not necessary to ensure every cable length it is accurate, need not be
Supervised during production workman whether by cable welding in correct position, reduce the quality that QC personnel examine welding.
4) traditional array antenna Adjustable Phase Shift device is to support independent conductor chamber by support column at the back side of reflecting plate
Body, installs phase shifting equipment in the conductor cavity, also, traditional each interelement of array antenna is by cable connection.U-shaped is anti-
Penetrate plate and phaser cavity is integrally formed, reflecting plate (surface of conductor housing) and the public face of phase shifter conductor cavity, two
Person is not separate, and reflecting plate and phase shifter are all separate parts in existing design, and phase shifter is supported
On reflecting plate, and the transmission mechanism of phase shifter is also above the cavity of phase shifter, and which adds the height of antenna.Originally set
The phase shifting equipment and strip line of meter are all directly installed in conductor cavity, and transmission mechanism is imbedded in reflecting plate (conductor housing
Surface) with phaser cavity, so can be very good to reduce the overall thickness of antenna, this design will make our antenna
Antenna thickness than any rival is all thin, and the size and volume of so whole antenna will diminish, and windage will reduce, operator
Cost of building a station accordingly reduce.
5) because the feeding network of electrical tilt antenna is extremely complex, the Antenna Design of present antenna for base station enterprise has been used largely
Coaxial cable, make the pad of antenna excessive, connect up extremely complex, therefore, the production process of antenna for base station needs substantial amounts of
Workman, realizes that automation is extremely difficult.Because the design has Highgrade integration feature, therefore, designed using this technology
Product can fully achieve automated production in its production process, all welding and assembling will be come in fact by robot completely
It is existing, this have the consequence that, the production efficiency of antenna will be 5-8 times of traditional antenna enterprise, due to Highgrade integration feature, give birth to
The antenna uniformity that output is come will be increased substantially, and reduce fraction defective.Phase shifter structure is simple, and installation and maintenance easily, can show
Write and improve production efficiency.
6) lower floor's feeding network of the present invention includes a first input port and two the first output ports；Upper strata transmission network
Network includes two four port networks, and each four port network includes three the second output ports and logical with first output port
Cross second input port of transmission line connection.The transmission line number for connecting levels feeding network is two, levels feedback
Whole network will form one one point six of network, i.e., one input and six output ports after electric network is connected.Due to
Transmission line only has two, correspondingly, and the number of windows for accommodating transmission line is processed on cavity and also there was only two, can so be subtracted
Few CNC processing capacities, reduce processing cost.
7) present invention is using transmission line connection, and pad will be reduced accordingly, and the destabilizing factor of welding also drops accordingly
It is low, reduce maintenance cost.
8) due to top layer strip line employ one point of three scheme (i.e. four port networks be divided into three the second output ports and with
Second input port that one the first output port is connected by transmission line), parts count is accordingly reduced, bottom strip line
Length will reduce accordingly.The antenna for base station of feeding network design for example based on an input and six output ports has
Six radiant bodies, its top layer strip line only has two four independent port networks and lower floor's feeding network.For a tool
There is its length of the antenna for base station of six radiant bodies at least will be more than 2.5 meters, if top layer strip line is one point of three scheme, bottom band
Shape line length will reduce, and so advantageously reduce difficulty of processing, reduce the manufacturing cost of strip line.Electricity is advantageously reduced during work
The leakage of magnetic wave, reduces coupling, improves S parameter, improves performance, and antenna length is 0.7 meter, and highest-gain reaches
16.5dBi；Four port network is the metallic conductor strip line provided with slow wave line or the printing of the microstrip line provided with slow wave line
Circuit board, with bigger lower decline angle when phase shifter is applied to antenna for base station, angle is 0-20 °.
Brief description of the drawings
Fig. 1-1 is the part isometric structural representation of space multistory phase shifter；
Fig. 1-2 is Fig. 1-1 part-structure enlarged diagrams；
Fig. 2-1 is the partial structural diagram of space multistory phase shifter；
Fig. 2-2 is Fig. 2-1 part-structure enlarged diagram；
Fig. 3-1 is provided at dielectric device component and drawbar structure diagram in top conductor cavity；
Fig. 3-2 is provided at dielectric device modular construction schematic diagram in lower floor's conductor cavity；
Fig. 4-1 is feeding network modular construction schematic diagram；
Fig. 4-2 is Fig. 4-1 part-structure enlarged diagrams；
Fig. 4-3 is the structural representation of transmission line in Fig. 4-1；
Fig. 5-1 is phase shifter package structural representation of the present invention；
Fig. 5-2 is Fig. 5-1 part-structure enlarged diagrams；
Fig. 5-3 is the elevation radiation patytern when present invention applies 0 degree of in antenna for base station electrical down-tilting；
Fig. 5-4 is the elevation radiation patytern when present invention applies 20 degree of in antenna for base station electrical down-tilting.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing.
Embodiment 1
As illustrated, a kind of space multistory phase shifter applied to antenna for base station, including interior set leading for two layers conductor cavity
Body shell body 100 and the feeding network component in every layer of conductor cavity, the feeding network component include being used to adjust base station
The sub- phase shifter package of antenna beam direction and the insulation assembly for supporting the sub- phase shifter package；The space multistory phase shift
The transmission line that device also includes with sub- phase shifter package is connected respectively in adjacent two layers conductor cavity；The sub- phase shifter package
The dielectric device component being slidably connected including the feeding network with being connected and with feeding network, in one layer of conductor cavity
Dielectric device component changes the dielectric device by being slidably reciprocated relative to the feeding network being located in the conductor cavity
The contact area of component and the feeding network；Two layers of conductor cavity is respectively top conductor cavity 109 and lower floor's conductor cavity
110, the feeding network in top conductor cavity 109 is upper strata feeding network, the feed in lower floor's conductor cavity 110
Network is lower floor's feeding network, and lower floor's feeding network includes a first input port 205 and two the first output ports 206；
Upper strata feeding network includes two four port networks 410, each four port network include three the second output ports (201,203,
204) second input port 202 and with first output port 206 being connected by transmission line 210；Four port
Network is the metallic conductor strip line provided with slow wave line 430 or the microstrip line printed circuit board (PCB) provided with slow wave line 430.
Feeding network component in adjacent two layers conductor cavity is connected and constitutes a complete space multistory feedback
Electric network.
Feeding network component is put into every layer of conductor cavity by the present invention, and adjacent two layers conductor chamber is connected at transmission line
Internal feeding network component, forms space multistory feeding network, the volume of feeding network is significantly reduced, so as to greatly reduce
The volume of phase shifter, when the phase shifter package is used for into antenna for base station, can greatly reduce the volume of antenna, be readily transported and
Use.
The dielectric member that sub- phase shifter package includes the feeding network being connected with transmission line and is slidably connected with feeding network
Part component, the dielectric device component in one layer of conductor cavity passes through relative to the feeding network being located in the conductor cavity
Slidably reciprocate to change the contact area of the dielectric device component and the feeding network.And then used in the space multistory phase shifter
When antenna for base station, slidably reciprocate to change this relative to the feeding network in the cavity by the dielectric device component
The contact area of dielectric device component and the feeding network component, so as to adjust the beam direction of antenna for base station.
Preferably, lower floor's feeding network is metallic conductor strip line or the printed circuit board (PCB) provided with microstrip line.
In this way, can thoroughly avoid using cable, need to ensure every electricity using cable compared to prior art
Cable length is accurate, cable management is difficult, it is complicated that cable is attached to shifter, it is high to reprocess cost, height, cost of material height etc. is lost
Problem, not only cost of material is low by the application, produce easy for installation, and can reduce and reprocess cost, and then thorough reduction is produced into
This.
In addition, phaser mechanism is simple in construction, installs easy, production efficiency can be significantly improved.
Preferably, it is described in conductor shell body, the feeding network in adjacent two layers conductor cavity is connected at, is made adjacent
The feeding network of interlayer forms the space multistory feeding network of an entirety together with transmission line.Transmission line 210 is not directly with leading
Body shell body 100 is directly contacted, i.e., have a gap between transmission line 210 and conductor housing 100, realizes insulation, short circuit is not had existing
As.Can be that the one end of transmission line 210 is located in one layer of conductor cavity, the other end is stretched into and this layer of cavity through this layer of conductor cavity
In another layer of adjacent conductor cavity.Transmission line 210 is in the conductor housing 100, it is to avoid the leakage of electromagnetic wave.Can be by signal
More it is transferred to antenna oscillator.
Preferably, every layer of conductor cavity is integrally formed, and every layer of conductor cavity two ends are designed with being used to allow feed network components
Into and out accent, conductor housing 100 formed by multi-layer conductive cavity stack combinations or by metallic conductor section bar one into
Type is constituted.During installation, the various parts of feeding network component can be assembled first, then again from accent by feeding network group
In part insertion conductor cavity, and then it is greatly saved the set-up time.Compared in the prior art, it is necessary to by every cable welding
To phase shifter, the problem of solder joint many (solder joints be hundreds of-thousands of), the set-up time has been greatly saved.
Meanwhile, when feeding network component is damaged, as long as feed network components are removed from accent and can repaired, repair
It is very convenient.
Preferably, the insulation assembly is dielectric substrate, dielectric substrate in every layer of conductor cavity by
Dielectric substrate A and dielectric substrate B compositions in this layer of conductor cavity, the insulation in this layer of conductor cavity
Dielectric substrate A and dielectric substrate B are respectively provided above the feeding network in this layer of conductor cavity and following.Set
Dielectric substrate A is provided with the feed networking in the conductor cavity, the feed networking in the conductor cavity has
Dielectric substrate B.
Preferably, the dielectric device component in one layer of conductor cavity is also fixedly connected with pull bar 213, located at the layer
Insulation assembly in conductor cavity is fixedly connected with the feeding network in this layer of conductor cavity, in this layer of conductor cavity
Insulation assembly be fixedly connected with conductor housing.Pull pull bar 213 that dielectric device component can be made to come relative to feeding network
Return is dynamic, and phase shift is convenient.
Preferably, the feeding network in every layer of conductor cavity includes metallic conductor piece and is connected with metallic conductor piece
Multiple ports.The metallic conductor piece of each feeding network component and the multiple ports being connected with metallic conductor piece can be integrally formed
Constitute.Multiple ports that metallic conductor strip line can be connected by metallic conductor piece and with metallic conductor piece are constituted.
Preferably, each first output port is connected with second input port by a transmission line.
Preferably, the top of conductor housing 100 offers the window being connected with top conductor cavity 109, the window
Mouth includes a window A105 and two windows B, each window B including being located at each second output port of four port networks
The first window of surface and the second window 102 directly over four port networks, second input port 202；Wherein, often
Individual window B the second window 102 is also located at a transmission line 210 being connected with the second input port 202 of four port network
With the surface for the first output port 206 being connected with the transmission line 210；The conductor housing 100 also includes leading located at every layer
The conductor dividing plate 114 provided with opening in body cavity body 100, conductor dividing plate 114 in every layer of conductor cavity is by this layer of conductor
Cavity is divided into interconnected left conductor cavity and right conductor cavity；One of dielectric substrate in every layer of conductor cavity
Side is fixed with boss 411, and the boss 411 is arranged in the opening of this layer of conductor cavity inner wire dividing plate 114；It is located at
The metallic conductor piece of feeding network in every layer of conductor cavity is in left conductor cavity, with the gold in this layer of conductor cavity
The port of category conductor piece connection is stretched into right conductor cavity through left conductor cavity.This is easy to antenna oscillator to pass through window and each
Port is connected, and is preferably provided in the projection of the window directly over each port in the horizontal direction and is more than the throwing of the port in the horizontal direction
Shadow, and then easier can be installed together antenna oscillator and port.Include located at a four port network first windows
First window 101, first window 103, and first window 104.
Preferably, the conductor dividing plate includes the top conductor dividing plate being located in top conductor cavity and located at lower floor's conductor
Top conductor cavity is separated into left top conductor cavity 116 and upper right by lower floor's conductor dividing plate in cavity, top conductor dividing plate
Lower floor's conductor cavity is separated into lower-left layer conductor cavity 115 and bottom right layer conductor chamber by layer conductor cavity 113, lower floor's conductor dividing plate
Body 112；Provided with logical hole at the top of the layer conductor cavity of bottom right, every one end of transmission line 210 is in the layer conductor cavity of bottom right, the other end
Stretched into through logical hole in right top conductor cavity.
Preferably, lower floor's conductor dividing plate is provided with one first opening and two second openings, and top conductor dividing plate is set
There are six the 3rd openings and two the 4th openings, first input port 205 is stretched into from lower-left layer conductor cavity through the first opening
In bottom right layer conductor cavity 112, each first output port stretches into the right side from lower-left layer conductor cavity 115 through one second opening
In lower floor's conductor cavity 112；One the second output port of each four port network passes through one from left top conductor cavity 116
3rd opening is stretched into right top conductor cavity 113, and the second input port of four port network is from left top conductor cavity 116
Stretched into through one the 4th opening in right top conductor cavity 113.
Preferably, first output port and second input port connected by a transmission line is in level side
Upward projection is staggered, and the transmission line is connected with first output port and second input port respectively, is preferably welded.I.e.
Located at a window just under the first output line and the second input line staggered by projection in the horizontal direction, and then be easy to weldering
Connect.
Preferably, the conductor housing 100 also includes the guide ledges 117 being fixed in every layer of conductor cavity, is located at
Pull bar 213 in the conductor cavity surrounds one and the guide ledges with the dielectric device component in the conductor cavity
117 guide grooves 212 matched.Guide ledges 117 match with guide groove 212 refers to that guide groove 212 can just be arranged
It is outer and pull bar 213 and dielectric device component can be along guide ledges 117 back and forth by guide groove 212 in guide ledges 117
Slide, and then pull the pull bar in the cavity, you can make the pull bar 213 in the cavity and the electricity in the cavity
Medium element moves back and forth along the guide ledges 117, moves back and forth and is more prone to.Further such that pull bar can only be convex along being oriented to
Platform 117 is moved forward and backward, without moving left and right, so as to more accurately adjust the beam direction of antenna for base station.
Preferably, the guide ledges 117 in every layer of conductor cavity are two up and down, in this layer of conductor cavity
Pull bar 213 is arranged in the cell body 118 that left side wall, roof and the bottom plate of two guide ledges and the conductor cavity are surrounded.Enter
One step causes pull bar movable along guide ledges 117, without moving left and right, so as to more accurately adjust base station day
The beam direction of line.
Preferably, strip window 111 is further opened with the conductor housing 100, the pull bar 213 in top conductor cavity
On be also fixedly connected with anchor 211, the anchor 211 in top conductor cavity is arranged in (or through) strip window and can be along bar
Shape window moves back and forth；Anchor in top conductor cavity and the pull bar in lower floor's conductor cavity pass through one first connection
Portion is connected.
Give the power of anchor 211 forward or backward, you can anchor 211 is moved back and forth along strip window 111, make upper strata dielectric device
Component 310 and lower dielectric component element 320 move back and forth, and then change contact of the dielectric device component with feeding network
Area.Pull bar in lower floor's conductor cavity 110 can also be provided with anchor, the first connector respectively with lower floor's cavity
Anchor is fixedly connected with the anchor in upper chamber body.
Preferably, the dielectric device component in every layer of conductor cavity includes at least one dielectric device, is located at
Each dielectric device in this layer of conductor cavity is fixedly connected with the pull bar in this layer of conductor cavity respectively, and each electricity is situated between
Matter element be provided with the feeding network that is used to adjust in this layer of conductor cavity and the dielectric device contact area it is how many to
Few two breach；Each dielectric device is integrally formed by mold injection to be made, and this being capable of broadening bandwidth.
Preferably, the dielectric device is fixedly connected by modes such as hot riveting or tight fits with pull bar, located at every
Dielectric device component in layer conductor cavity includes multiple electricity Jie being connected respectively with the pull bar in the conductor cavity
Matter element；The pull bar is glass reinforcing pull rod.Upper strata dielectric device component includes dielectric device 301 two long.Electricity is situated between
Matter element and anchor are designed with elongated slot.
Preferably, (insulation assembly is also used for making the feeding network and conductor cavity exhausted for each feeding network and insulation assembly
Edge) it is fixedly connected, achieved a fixed connection preferably by the dielectric rod through insulation assembly and feeding network.Fig. 4-1 is shown
Contained in the space multistory phase shifter structure schematic diagram of the application, conductor shell body upper strata feeding network, lower floor's feeding network,
Upper strata dielectric device component 310, lower dielectric component element 320 and two transmission lines 210.
Wherein, it is made up located at the upper and lower dielectric substrate 404,403 of upper strata feeding network of plastic foam material, on
Layer feeding network and dielectric substrate 404,403 by through upper strata feeding network and dielectric substrate 404,403 extremely
A few dielectric rod (barred body being prepared into by insulating materials) is fixedly connected.Can be dielectric substrate 404,403 all
Boss 411 is provided with, each boss 411 is provided with positioning hole 412, and each boss 411 is arranged in an opening, boss 411
Cooperated with conductor housing 100, play fixed upper strata feeding network, each near ports of upper strata feeding network are set
There is through hole, each dielectric rod 405 leads to through a positioning hole with one that (immediately below preferably) is located under the positioning hole
Upper strata feeding network and dielectric substrate 404,403 are mutually located and are fixed together by hole, then rivet work by thermoplastic materials
Skill makes dielectric rod 405 be closely connected with dielectric substrate 404, dielectric substrate 403, upper strata feeding network respectively,
, will two four ends so as to which dielectric substrate 404, dielectric substrate 403, upper strata feeding network are tightly secured in together
Mouth network 410 is fixedly connected with dielectric substrate 404,403 respectively, and dielectric rod 405 can be sticking plaster.
Lower floor's feeding network includes a three port feeding networks, three port feeding networks 420 and dielectric substrate
401st, 402 fixed by least one dielectric rod through three port feeding networks 420 and dielectric substrate 401,402
Connection.Can be that dielectric substrate 401 and dielectric substrate 402 are provided with boss 411, each boss 411 is provided with positioning
Hole 412, each boss 411 is arranged in an opening of lower floor's conductor cavity, and boss 411 cooperates with conductor housing 100,
Play fixed lower floor feeding network, each near ports of lower floor's feeding network are designed with through hole, located at lower floor's conductor chamber
Internal each dielectric rod 405 passes through a positioning hole 412 and is located under the positioning hole 412 the one of (immediately below preferably)
Three port feeding networks 420 and dielectric substrate 401,402 are mutually located and are fixed together by individual through hole, then pass through thermoplastic
Material riveting process makes dielectric rod 405 tight with dielectric substrate 401, dielectric substrate 402, lower floor's feeding network respectively
Close connection, so that dielectric substrate 401, dielectric substrate 402 and lower floor's feeding network are tightly secured in together, even if
Three port feeding networks 420 are fixedly connected with dielectric substrate 401,402, and dielectric rod 405 is also made up of sticking plaster.
Lower dielectric component element includes dielectric device 302 one long.Wherein, the dielectric device 302 of this length
A two-way phase switcher is constituted with feeding network, therefore, the phase shifter package in lower floor's conductor cavity includes two sons
Phase shifter.Transmission line 210 is used to connect levels feeding network, such as：The pin pin 407 of a piece transmission line 210 are inserted into upper strata feedback
In the hole 409 of one the second input port of electric network, the pin pin 408 of the transmission line are inserted into lower floor's feeding network one first
In the hole 406 of output port, that is, realize that second input port and first output port are connected by a transmission line 210
Connect.Similarly, the correspondingly connected levels feeding network of another transmission line 210, the of two four port networks on such upper strata
Two input ports and two the first output ports of lower floor have been connected to form the network of an entirety.This feeding network is contained
One primary input port, six the second output ports, the sub- phase shifter package in top conductor cavity includes four sons
Phase shifter, the sub- phase shifter package in lower floor's conductor cavity includes two sub- phase shifters, and space multistory phase shifter is altogether
There are six sub- phase shifters.
Preferably, the dielectric constant values of the dielectric device component in every layer of cavity are set to when synchronizing moving is located at
During dielectric device component in each layer conductor cavity, the phase of the feeding network in each layer cavity can synchronously change.
Anchor 211 in top conductor cavity and the anchor 211 in lower floor's conductor cavity are connected by a first connecting portion, institute
It can be rod-like members to state first connecting portion.As long as giving rod-like members or anchor 211 1 power back and forth, with regard to that can allow located at upper strata
Dielectric device component in conductor cavity and the dielectric device component in lower floor's conductor cavity synchronizing moving back and forth.From
And, it is only necessary to a transmission device can be realized as the shifting synchronous with lower dielectric component element of upper strata dielectric device component
It is dynamic, make the Phase synchronization change of the sub- phase shifter package in each layer conductor cavity, greatly simplify transmission system.Six
Second output end can connect six antenna oscillators.
Preferably, each dielectric device in every layer of conductor cavity is same dielectric substance, with identical
Dielectric constant, in top conductor cavity dielectric device component material therefor dielectric constant values between 2.0-2.8 (for example：
Polypropylene or polystyrene plastics or polytetrafluoroethylene (PTFE) or TPX (poly 4-methylpene-1) or PPE), lower floor's conductor conductor
Its dielectric constant values of dielectric device component material therefor (such as ceramic material, MODIFIED PP E between 3.0-5.0 in cavity
Material), the dielectric constant of the dielectric device material in different conductor conductor cavity layer is different, is had between its dielectric constant
One difference DELTA, when synchronizing moving is located at the dielectric device component in each layer conductor cavity, in each layer conductor cavity
Feeding network phase can synchronously change, simplify the transmission system of electrical tilt antenna.
Preferably, the dielectric device component in every layer of conductor cavity is on the left of feeding network component, located at every
Dielectric substrate and dielectric device component in layer conductor cavity is in left conductor cavity.
Preferably, the feeding network part in any one conductor cavity is stretched into dielectric substrate, another
Partial denudation is outside dielectric substrate.
Preferably, the dielectric device component in every layer of conductor cavity is led on the left of feeding network located at every layer
Dielectric substrate and dielectric device component in body cavity body is in left conductor cavity, the drawing in this layer of conductor cavity
Bar, dielectric device component, the dielectric substrate leftmost side are from left to right arranged in order.
Preferably, the dielectric substrate is by low-k, and low-loss material is made.Low-k, low-loss
During material for example can be polypropylene (PP), polyethylene (PE), polytetrafluoroethylene (PTFE) (PTFE), TPX (poly 4-methylpene-1)
It is one or more.And then the gain of antenna can be improved.
Preferably, the dielectric substrate is made up of expanded material.Using expanded material, it is readily transported, can also improves
The gain of antenna.
Preferably, every layer of conductor cavity is the cuboid conductor cavity that accent is located at two ends, each four port network
It is arranged in order from front to back, pull bar, guide ledges are parallel with the long side of cuboid conductor cavity.Certainly, located at lower floor's cavity
Each port of interior feeding network is also to be arranged in order from front to back, preferably, and first input port is located at each the second input
The centre position of port, this is easy to the arrangement of the feeding network component strip line, can more save raw material.Certainly, one is passed through
The first output port and the second input port that transmission line 210 is connected are preferably close to being easily installed.Pull bar 213 and guide ledges
117 is parallel, and then causes dielectric substrate movable relative to feeding network component.
Preferably, dielectric substrate and conductor housing are achieved a fixed connection by rivet.For example, by being situated between through insulation
The rivet interlacement of matter substrate and conductor housing.
During installation, first feeding network component can be installed, then by each feeding network component from the chamber of one layer of cavity
Mouth is inserted in the cavity, then each first output port is connected with each second input port by transmission line, is finally made absolutely
Edge dielectric substrate is fixedly connected with conductor housing 100 by rivet, installs very convenient, peace can be completed in 10 minutes
Dress, greatly improves production efficiency.Two accents are set, raw material is more saved.
Can also then it be moved right from feeding network component is inserted left chamber body by the accent of the left chamber body of every layer of cavity
Feeding network component, makes each port be stretched into through opening in the right chamber body of this layer of cavity, and boss 411 is stuck in opening, then
Dielectric substrate is fixedly connected with conductor housing 100 by rivet again, finally make each first output port with each the
Two input ports are connected by transmission line.
Preferably, described upper and lower layer feeding network component can mutual reversing of position.
In summary, this feeding network point levels, an entirety is combined into by transmission line by levels feeding network,
And then a space multistory phase shifter is constituted, it contains a primary input port, and six output ports, levels are used
The dielectric device that the material of differing dielectric constant is made, simplifies transmission system, makes us have an opportunity to design best shifting
Phase device.
When the phase shifter of the present invention is used for antenna, signal is input to each first output port from first input port,
The signal spread out of from each first output port is sent to and the transmission line by the transmission line being connected with first output port
Signal, is then respectively sent to belong to the feedback of four port with second input port by one the second inbound port of connection again
Three the second output ports of electric network, are transmitted further to the antenna oscillator being connected with each second output port.
Embodiment 2
Present invention also offers a kind of space multistory phase shifter package applied to antenna for base station, the space multistory phase shifter
The two spaces solid that component includes the interconnection described in embodiment 1 shifts to device assembly, and two are shifted to device assembly or so mirror
As arrangement.The phase shifter is moved by the three-dimensional phase shifter 523 of left space and the right space solid on the right side of the three-dimensional phase shifter of left space
Phase device 524 is constituted, and left space solid phase shifter 523 and the three-dimensional phase shifter 524 of right space are forward and backward, upper and lower flush.
Preferably, two spaces solid shifts to the conductor shell body by integral forming of device and connects and composes the shell of phase shifter package
521。
Preferably, the phase shifter package also includes what is be fixedly connected respectively with the anchor on the three-dimensional phase shifter top of two spaces
Second connecting portion 525.The second connecting portion 525 can be in conductor casing 521, and second connecting portion 525 is dilatory planker
Or drawbar.Guiding groove 528 can be set on shell 521, and second connecting portion 525 can set and be oriented to groove 528 and match
Guiding protrusion, protrusion is oriented to located at being oriented in groove 528, during to the power forward or backward of second connecting portion 525 1, with regard to energy
Second connecting portion 525 is moved forward and backward along groove 528 is oriented to, certainly, be oriented to groove, pull bar, be oriented to that protrusion is best parallel to be set
Put.The elongated slot of each dielectric device of pull bar with dielectric device component be preferably also it is parallel, be easy to pull.
Fig. 5 illustrates the structural representation of the phase shifter of the application, and it includes an integrally formed conductor casing 521,
Provided with 8 conductor cavitys 501,502,504,505,507,508,509,510 in this conductor casing 521, wherein, it is arranged on the left side
501 and 510 constitute a pair, conductor cavity 501 and conductor cavity 502 collectively constitute lower floor's conductor of the three-dimensional phase shifter of left space
Cavity, conductor cavity 510 and conductor cavity 509 collectively constitute the top conductor cavity of the three-dimensional phase shifter of left space；Conductor cavity
504 and conductor cavity 505 collectively constitute lower floor's conductor cavity of the three-dimensional phase shifter of right space, conductor cavity 508 and conductor cavity
507 collectively constitute the top conductor cavity of the three-dimensional phase shifter of right space；Longitudinal metal wall 503 will be positioned over the three-dimensional phase shift of left space
Feeding network in device is separated with the feeding network being positioned in the three-dimensional phase shifter of right space, and this design is effectively improved
The isolation of system, transverse metal wall 506 keeps apart upper strata feeding network component and lower floor's feeding network component.Wicket
511,515 and 517 be three windows directly over left space one four port network of three-dimensional phase shifter, window 512,516
It is three windows directly over right space one four port network of three-dimensional phase shifter, phase shifter left and right sides difference with 518
There are six output ports., can be by the insulation in top conductor cavity by penetrating the hole explosive rivet in the fixing hole
Dielectric substrate is fixed on shell, and lower floor's dielectric substrate can also be fixed on metal shell 521 by same method.Long window
513 and long window 514 be respectively the three-dimensional phase shifter of left space and the three-dimensional phase shifter of right space the second window, window 519 and window
Mouth 520 is the window A of the three-dimensional phase shifter of left space and the three-dimensional phase shifter of right space respectively, and primary input port is located in shell upper
Between, push-and-pull planker can slidably reciprocate along elongated strip shaped window 526,527 and guiding groove 528, and then drive located at each conductor
Dielectric device component in cavity slidably reciprocates relative to the feeding network being arranged in the conductor cavity, changes the dielectric
The contact area of component element and feeding network, and then adjust beam direction.
Metal shell 521 is provided with circular hole, and dielectric substrate is provided with the fixing hole corresponding with circular hole, passes through blast
Dielectric substrate and conductor casing are fixed together by rivet through circular hole and fixing hole.Circular hole can be and each to be multiple
The corresponding fixing hole of circular hole can also be multiple.
In summary, the present invention is by the way that phase shifter feeding network is respectively placed in double layer of metal conductor cavity, then passes through
Transmission line, connects into an entirety by two layers of feed networking, different dielectric constants is then used in different conductor cavity layer
Dielectric device, so we can just drag levels dielectric device component one simultaneously using a set of transmission system and start shipment
Dynamic, so as to simplify transmission system, otherwise, we are accomplished by two sets of transmission systems, to drive levels dielectric device respectively.
Therefore, phase shifter is expanded to stereochemical structure by the present invention, forms a kind of space multistory phase shifter, this phase shifter
Can be original plane phase shifter reduced width 50%, the result is that the present invention, which enables us to design smaller size of electricity, adjusts day
Line, these antenna will not be used cable, and if this antenna has M radiant body, then this Wave-packet shaping network will have M-1
Sub- phase shifter, so that we can design high-quality antenna radiation pattern.
One the second output port of left space solid phase shifter and second output end of the three-dimensional phase shifter of right space
Mouth is connected with an antenna oscillator respectively.
Shell and housing are in addition to accent, and remaining place had better not be provided with opening, to prevent electromagnetic wave leakage.It is laterally golden
Category wall 506 and longitudinal metal wall 503, which are preferably also, should not set opening, to prevent electromagnetic wave leakage.
Fig. 5-3 and Fig. 5-4 is respectively when the present invention applies 0 degree of in antenna for base station electrical down-tilting and vertical plane side at 20 degree
Xiang Tu.
The phase shifter is applied to all frequency ranges, is particularly suitable for use in forth generation mobile base station antenna in 610-960MHz, 1420-
2690MHz and 3300-3900MHz multifrequencies antenna for base station and the 5th third-generation mobile communication antenna in future.
Conductor of the present invention can be the materials such as metallic aluminium and aluminium alloy.It is multiple to refer to two or more.
In addition, it is necessary to explanation, phase shifter levels feeding network is relative, in fact, levels transmission network
Network can be exchanged, certainly, and the levels feeding network for constituting each phase shifter of phase shifter package is also relative, i.e. group
Levels feeding network into each phase shifter of phase shifter package is also to exchange.
Only as described above, only the preferred embodiments of the invention, when the model of implementation of the invention can not be limited with this
Enclose, i.e., generally according to simple equivalent changes and modifications made by the content described in the claims in the present invention and description of the invention,
All it is still covered by the claims of the invention.Searched in addition, summary part and title are intended merely to auxiliary patent document
Seek and being used, not for limiting the interest field of the present invention.
Claims (10)
1. a kind of space multistory phase shifter applied to antenna for base station, it is characterised in that set upper and lower two layers of conductor cavity including interior
Conductor housing and the feeding network component in every layer of conductor cavity, located at lower floor's transmission network of lower floor's feeding network component
Network includes a first input port and two the first output ports；Located at the upper strata feeding network bag of upper strata feeding network component
Two four port networks are included, each four port network includes three the second output ports and with first output port by passing
One the second input port of defeated line connection；Four port network is the metallic conductor strip line provided with slow wave line or is provided with
The microstrip line printed circuit board (PCB) of slow wave line.
2. space multistory phase shifter as claimed in claim 1, it is characterised in that every layer of conductor cavity is integrally formed, and every layer is led
Body cavity body two ends be designed with for allow feed network components into and out accent, conductor housing is superimposed by multi-layer conductive cavity
Combine or be integrally formed by metallic conductor section bar and constituted；Lower floor's feeding network is metallic conductor strip line or is provided with
The printed circuit board (PCB) of microstrip line.
3. space multistory phase shifter as claimed in claim 1, it is characterised in that the feeding network component includes being used to adjust
The sub- phase shifter package of antenna for base station beam direction and the insulation assembly for supporting the sub- phase shifter package, the sub- phase shifter
Component includes the feeding network being connected with transmission line and the dielectric device component being slidably connected with feeding network；The insulation group
Part is dielectric substrate, and the dielectric substrate in every layer of conductor cavity is situated between by the insulation in this layer of conductor cavity
Matter substrate A and dielectric substrate B compositions, B points of dielectric substrate A and dielectric substrate in this layer of conductor cavity
It is not located above the feeding network in this layer of conductor cavity and following.
4. space multistory phase shifter as claimed in claim 3, it is characterised in that the dielectric substrate is by polypropylene, poly-
One or more materials in ethene, polytetrafluoroethylene (PTFE), poly 4-methylpene-1 are made.
5. space multistory phase shifter as claimed in claim 3, it is characterised in that the dielectric substrate is by expanded material system
Into.
6. space multistory phase shifter as claimed in claim 1, it is characterised in that the conductor case top is offered and upper strata
The window that conductor cavity is connected, the window includes a window A and two windows B, each window B including being located at one four
First window directly over each second output port of port network and directly over the input port of four port network second
The second window；Wherein, each window B the second window is also located at one be connected with the second input port of four port network
The surface of root transmission line and the first output port being connected with the transmission line.
7. space multistory phase shifter as claimed in claim 1, it is characterised in that the conductor housing also includes leading located at every layer
The conductor dividing plate provided with opening in body cavity body, the conductor dividing plate includes the top conductor dividing plate in top conductor cavity
With lower floor's conductor dividing plate in lower floor's conductor cavity, lower floor's conductor dividing plate is provided with one first opening and two second
Opening, top conductor dividing plate is provided with six the 3rd openings and two the 4th openings.
8. space multistory phase shifter as claimed in claim 1, it is characterised in that described upper and lower layer feeding network component can
With mutual reversing of position.
9. a kind of phase shifter package for antenna for base station, it is characterised in that it is any that the phase shifter package includes claim 1-8
The three-dimensional phase shifter of two spaces of interconnection described in, and the three-dimensional phase shifter of two spaces or so mirror alignment.
10. phase shifter package as claimed in claim 9, it is characterised in that the space multistory phase shifter is claim 9 institute
The space multistory phase shifter stated, the anchoring that the phase shifter package also includes respectively with the three-dimensional phase shifter top of two spaces connects surely
The second connecting portion connect.
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| CN201710296382.0A CN106972267B (en) | 2017-04-28 | 2017-04-28 | Spatial stereo phase shifter applied to base station antenna |
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| CN201710296382.0A CN106972267B (en) | 2017-04-28 | 2017-04-28 | Spatial stereo phase shifter applied to base station antenna |
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| CN107968239A (en) * | 2017-12-29 | 2018-04-27 | 京信通信系统（中国）有限公司 | Phase-shift structure and antenna |
| CN108232379A (en) * | 2017-12-29 | 2018-06-29 | 京信通信系统（中国）有限公司 | Phase-shift structure and antenna |
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| CN111063970A (en) * | 2019-12-27 | 2020-04-24 | 华南理工大学 | Microwave device and antenna |
| EP3671952A4 (en) * | 2017-09-19 | 2020-08-26 | Huawei Technologies Co., Ltd. | Feed network of base station antenna, base station antenna and base station |
| CN112993569A (en) * | 2019-12-18 | 2021-06-18 | 京信通信技术(广州)有限公司 | Feed network and antenna |
| CN114976647A (en) * | 2022-05-09 | 2022-08-30 | 南通大学 | Dielectric phase shifter for base station array antenna |
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| CN112993569B (en) * | 2019-12-18 | 2022-08-26 | 京信通信技术(广州)有限公司 | Feed network and antenna |
| CN111063970A (en) * | 2019-12-27 | 2020-04-24 | 华南理工大学 | Microwave device and antenna |
| CN114976647A (en) * | 2022-05-09 | 2022-08-30 | 南通大学 | Dielectric phase shifter for base station array antenna |
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| CN106972267B (en) | 2021-02-02 |
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