CN106921011B - A kind of phase shifter and antenna - Google Patents
A kind of phase shifter and antenna Download PDFInfo
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- CN106921011B CN106921011B CN201510999449.8A CN201510999449A CN106921011B CN 106921011 B CN106921011 B CN 106921011B CN 201510999449 A CN201510999449 A CN 201510999449A CN 106921011 B CN106921011 B CN 106921011B
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- phase
- phase shift
- phase shifter
- line
- slip band
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- 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
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The embodiment of the present invention provides a kind of phase shifter and antenna, is related to the communications field, enables to the phase of signal not change because of the relative motion between slip band line and fixing belt line, improve the effect of phase shifter.The phase shifter includes input port, fixing belt line, slip band line, at least one phase shift minor matters, and each phase shift minor matters are connected with two the first output ports；Compensation medium, compensation medium is overlapping with sliding stripline portions when slip band line is slided relative to fixing belt line, for changing the effective dielectric constant of the slip band line with compensation medium overlapping part；When slip band line is slided along first direction or second direction relative to fixing belt line, equal in magnitude, and the opposite in phase of the second phase shift of the first phase shift and signal of signal.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of phase shifters and antenna.
Background technique
In a communications system, the array that antenna is made of a certain number of antenna element, in practical applications, for reality
Now to the coverage optimization of cellular cell wireless signal, the greatest irradiation direction of antenna needs to change according to demand, and changes
The method of the greatest irradiation direction of antenna is exactly to change the phase of feedback electromagnetic wave of each antenna element in aerial array, so that battle array
There are certain phase difference between each antenna element in column, realize that the device of the phase change of this electromagnetic wave is exactly phase shifter.
Existing phase shifter is broadly divided into two types: the first is realized by changing the effective dielectric constant of signal transmission path
Phase shift；Second is to realize phase shift by changing the length of signal transmission path.Common, the first phase shifter is due in reality
Can there are certain tolerance, therefore less than second phase shifter of precision of its phase shift generated to signal in the production of border.
In above-mentioned second of phase shifter, phase shifter is to change signal transmission path with movable slider by sliding main feeder
Length realizes phase shift.During certain phase shifters (such as linear type phase shifter) slides main feeder, the length of main feeder
Degree changes, and the distance that signal is propagated in main feeder is also variation, therefore signal produces phase shift in main feeder, from
And affect the effect of phase shifter.
Summary of the invention
The embodiment of the present invention provides a kind of phase shifter and antenna, enable to signal phase will not because of slip band line and
Relative motion between fixing belt line and change, improve the effect of phase shifter.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, the embodiment of the present invention provides a kind of phase shifter, including input port, it is connect with the input interface
Fixing belt line, the slip band line being connect with the fixing belt line, at least one the phase shift minor matters being connect with the slip band line,
In, the slip band line is slided relative to the fixing belt line, and each phase shift minor matters are connected with two the first output ports
It connects；The phase shifter further include:
Compensation medium, the compensation medium when the slip band line is slided relative to the fixing belt line with the sliding
Stripline portions are overlapping, for changing the effective dielectric constant of the slip band line with the compensation medium overlapping part；
Wherein, sliding relative to the fixing belt line along the first direction or the second direction when the slip band line
When dynamic, equal in magnitude, and the opposite in phase of the second phase shift of the first phase shift and signal of the signal, first phase shift
The phase shift that the distance changed when sliding for the slip band line relative to the fixing belt line generates the signal；Described second
Phase shift is slip band line compensation medium in the changing unit of overlapping part when sliding relative to the fixing belt line
The phase shift that dielectric constant generates the signal.
In phase shifter provided in an embodiment of the present invention, due to being added to compensation medium in phase shifter, compensation medium is used for
Change the effective dielectric constant with the slip band line of the compensation medium overlapping part, therefore, when the slip band line phase
When for fixing belt line sliding, equal in magnitude, and the phase of the second phase shift of the first phase shift and signal of the signal
The phase shift that the distance that position changes when on the contrary, i.e. slip band line being slided relative to fixing belt line generates signal is opposite with slip band line
The dielectric constant of compensation medium mutually supports the phase shift that signal generates in the changing unit of overlapping part when the sliding of fixing belt line
Disappear, so that the phase of signal will not change because of the relative motion between slip band line and fixing belt line, improves phase shift
The effect of device.
Further, the phase shifter further include:
The second output terminal mouth being connect with the fixing belt line, wherein the signal is inputted from the input port, via
A part of fixing belt line is exported from the second output terminal mouth, and the distance that the signal is propagated is fixed value.
In phase shifter provided in an embodiment of the present invention, if phase shifter includes the second output terminal connecting with the fixing belt line
Mouthful, wherein the signal is inputted from the input port, via a part of fixing belt line, from the second output terminal mouth
Output, the distance that the signal is propagated are fixed value, and therefore, the phase of second output terminal mouth is in the slip band line relative to institute
Phase shift does not occur when stating the sliding of fixing belt line, second output terminal mouth is zero phase port.
In the first possible implementation, the phase shift minor matters are slow-wave structure.
In the second possible implementation, the phase shifter further include:
Media units at least one described phase shift minor matters are set, for changing effective dielectric of the phase shift minor matters
Constant.
In phase shifter provided in an embodiment of the present invention, phase shift minor matters can be slow-wave structure, can also be in phase shift minor matters
Media units are set to change the effective dielectric constant of the phase shift minor matters, so that reaching makes between each delivery outlet that there are phases
The purpose of difference.
Further, if the phase shifter includes at least two phase shift minor matters, at least two phase shift minor matters
Positioned at the ipsilateral or heteropleural of the slip band line.
It, can be according to actual phase shifter size, to the phase shift of phase shifter inside in phase shifter provided in an embodiment of the present invention
The arrangement of minor matters is designed.
Further, the phase shifter further include:
The cable being connect with the input port, first output port and the second output terminal mouth.
Further, the phase shifter further include:
Be set to it is on the outside of the fixing belt line, the slip band line, the phase shift minor matters and the compensation medium, be used for
It is fixed or install the fixing belt line, the slip band line, the phase shift minor matters and the compensation medium cavity.
Further, the connection type between the fixing belt line and the slip band line is that coupling is electrically connected or directly connects
Electric shock connection；Connection type between the slip band line and phase shift minor matters described at least one is that coupling is electrically connected or directly connects
Electric shock connection.
Second aspect, the embodiment of the present invention provide a kind of antenna, including the shifting with arbitrary characteristics described in first aspect
Phase device, and at least one antenna element being connect with the phase shifter.
The technical effect of antenna provided in an embodiment of the present invention may refer to the technology effect of phase shifter in above-mentioned first aspect
Fruit, details are not described herein again.
Further, the phase shifter is connect by the cable in the phase shifter with antenna element described at least one.
It includes input port that the embodiment of the present invention, which provides a kind of phase shifter and antenna, phase shifter, is connect with input interface
Fixing belt line, the slip band line being connect with fixing belt line, at least one the phase shift minor matters being connect with slip band line, wherein sliding
Band line is slided relative to fixing belt line, and each phase shift minor matters are connected with two the first output ports；Phase shifter further include: compensation
Medium, compensation medium is overlapping with sliding stripline portions when slip band line is slided relative to fixing belt line, for changing with compensation
The effective dielectric constant of the slip band line of medium overlapping part；Wherein, when slip band line is along first direction or second direction phase
When for the sliding of fixing belt line, equal in magnitude, and the opposite in phase of the second phase shift of the first phase shift and signal of signal, the first phase
Move the phase shift that the distance changed when sliding for slip band line relative to fixing belt line generates signal；Second phase shift is slip band line
The phase shift that the dielectric constant of compensation medium generates signal in the changing unit of overlapping part when relative to the sliding of fixing belt line.
Description based on the above embodiment, due to being added to compensation medium in phase shifter, compensation medium for changing with
The effective dielectric constant of the slip band line of the compensation medium overlapping part, therefore, when the slip band line is relative to institute
When stating the sliding of fixing belt line, equal in magnitude, and the opposite in phase of the second phase shift of the first phase shift and signal of the signal,
The phase shift that the distance that changes generates signal when i.e. slip band line is slided relative to fixing belt line is with slip band line relative to fixation
The phase shift that the dielectric constant of compensation medium generates signal in the changing unit of overlapping part when with line sliding is cancelled out each other, so that
The phase of signal will not change because of the relative motion between slip band line and fixing belt line, improve the effect of phase shifter
Fruit.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the positional diagram of adjacent antenna units in a kind of linear array provided in an embodiment of the present invention；
Fig. 2 is the structural representation for realizing the phase shifter of phase shift by changing the length of signal transmission path in the prior art
Figure one；
Fig. 3 is the structural representation for realizing the phase shifter of phase shift by changing the length of signal transmission path in the prior art
Figure two；
Fig. 4 is a kind of structural schematic diagram one of phase shifter provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram two of phase shifter provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram three of phase shifter provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram four of phase shifter provided in an embodiment of the present invention；
Fig. 8 is a kind of structural schematic diagram five of phase shifter provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram six of phase shifter provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram seven of phase shifter provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Phase shifter described in the embodiment of the present invention can be used in various antenna for base station, and antenna is by a certain number of antenna
The array of unit composition, the method for changing the greatest irradiation direction of antenna are exactly to change feedback each antenna element in aerial array
The phase of electromagnetic wave.Common aerial array includes linear array, broad side array, endfire array etc., adjacent day in aerial array
Phase difference between line unit is usually equal.Illustratively, as shown in Figure 1, to be provided in an embodiment of the present invention a kind of straight
The positional diagram of adjacent antenna units in linear array.The linear array includes that 5 antenna elements are (as shown in Figure 1
A, B, C, D and E), 5 antenna elements are placed along same straight line, in general, antenna element C is zero phase antenna element, are being moved
During phase device phase shift, antenna element C does not generate phase shift, the phase of antenna element B and antenna element D and antenna element C always
Potential difference is θ, and the phase difference between antenna element A and antenna element B is θ, the phase between antenna element D and antenna element E
Difference is also θ, wherein the value of θ can change during phase shifter phase shift.
It is existing by change signal transmission path length come realize phase shift phase shifter structural schematic diagram such as Fig. 2 and
Shown in Fig. 3, wherein the phase shifter includes 3 output ports, input port, the main feeder 10 being electrically connected with input port；With master
Feeder line 10 be electrically connected sliding block 11, and be arranged between sliding block 11 and main feeder 10 can along straight line it is opposite slide；With sliding block 11
The phase shift minor matters 12 of electrical connection, when sliding block 11 is along linear slide, the holding of sliding block 11 is slidably connected with phase shift minor matters 12, and phase shift
Two output ports (output port 2 as shown in Figure 2 and output port 3) in minor matters 12 and 3 output port are electrically connected,
Media units are provided in middle phase shift minor matters 12, to increase the amount of phase shift that each phase shift minor matters generate signal, meanwhile, 3 outputs
The distance between another output port (output port 1 as shown in Figure 2) and input port in port be it is fixed, i.e.,
Output port 1 is zero phase port.When sliding block 11 is along linear slide, as indicated by the arrows in fig. 3, the length of main feeder 10 with
The length of main feeder 10 is compared and becomes smaller in Fig. 2.Since the path that signal passes through in feeder line is longer, phase is more lagged, therefore, defeated
The same signal for entering phase shifter enters the phase of sliding block 11 in figure 2 and figure 3 and is different, and leads to output port 2 and output
Phase difference between phase difference between port 1, with output port 3 and output port 1 differs, and affects the effect of phase shifter.
The embodiment of the invention provides a kind of phase shifters, enable to the phase of signal will not be because of slip band line and fixation
It changes with the relative motion between line, overcomes signal and lead to the problem of phase shift in main feeder, improve phase shifter
Effect.
It should be noted that for convenience and more fully understand the technical solution of the embodiment of the present invention, it is of the invention
It is equal to be illustrated that following embodiments, which are with the phase difference in aerial array between adjacent antenna units, Ke Yili
It solving, the phase difference in aerial array between adjacent antenna units can be adjusted according to actual needs, and it is not necessarily equal,
The present invention is with no restrictions.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein
Middle character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
The embodiment of the present invention provides a kind of phase shifter, as shown in figure 4, phase shifter includes input port 20 and input interface
The fixing belt line 21 (indicated packless wire frame in 4 in such as figure) of 20 connections, the slip band line being connect with fixing belt line 21
22 (wire frames of indicated filled black in 4 in such as figure), at least one the phase shift minor matters 23 being connect with slip band line 22,
In, slip band line 22 is slided along first direction or second direction relative to fixing belt line 21, each phase shift minor matters 23 and two
First output port 24 is connected, and signal is inputted from input port 20, via fixing belt line 21, slip band line 22 and phase shift minor matters
23, it is exported from each first output port 24；Phase shifter further include:
Compensation medium 25, compensation medium 25 slip band line 22 relative to fixing belt line 21 slide when with 22, slip band line
Divide and overlap, for changing the effective dielectric constant of the slip band line with 25 overlapping part of compensation medium.
Wherein, when slip band line 22 is slided along first direction or second direction relative to fixing belt line 21, signal
First phase shift and the second phase shift of signal it is equal in magnitude, and opposite in phase, the first phase shift are slip band line 22 relative to fixation
The phase shift that the distance changed when sliding with line 21 generates signal；Second phase shift is that slip band line 22 is sliding relative to fixing belt line 21
The phase shift that the dielectric constant of compensation medium generates signal in the changing unit of overlapping part when dynamic.
It should be noted that first direction and second direction described in the embodiment of the present invention are a kind of reality of the invention
Existing mode, it is to be understood that slip band line 22 is not limited to relative to the sliding of fixing belt line 21 along first direction or the
The sliding of two directions.Wherein, first direction is horizontal direction to the left in such as Fig. 4, and second direction is such as the side in Fig. 4 horizontally to the right
To；Or first direction is the direction in such as Fig. 4 horizontally to the right, second direction is such as direction to the left horizontal in Fig. 4.Work as sliding
When direction with line 22 along such as Fig. 4 horizontally to the right is moved, as shown in figure 5, the length of slip band line 22 reduces, slip band line 22
Increase with the overlapping area of compensation medium 25, and the second phase shift of the first phase shift and signal of signal is equal in magnitude, and phase
On the contrary, the first phase shift is the phase shift that the distance changed when slip band line 22 is slided relative to fixing belt line 21 generates signal；The
Two phase shifts are that the dielectric of compensation medium in the changing unit of overlapping part when slip band line 22 is slided relative to fixing belt line 21 is normal
The phase shift that several pairs of signals generate.The phase that the distance changed when i.e. slip band line 22 is slided relative to fixing belt line 21 generates signal
Move the dielectric constant pair of compensation medium in the changing unit of overlapping part when sliding with slip band line 22 relative to fixing belt line 21
Signal generate phase shift cancel out each other so that the phase of signal will not because of the relative motion between slip band line and fixing belt line and
It changes, improves the effect of phase shifter.
It should also be noted that, the firstth area in phase shifter can be set in compensation medium 25 described by the embodiment of the present invention
Domain and/or second area, wherein as shown in figure 4, first area is the lower zone of slip band line 22, second area is sliding
Upper area with line 22；Or first area is the upper area of slip band line 22, second area is under slip band line 22
Square region.And first area and second area and slip band line 22 are endless when slip band line 22 is slided relative to fixing belt line 21
Full weight is folded.When the slip band line 22 of phase shifter slides into the leftmost side as shown in Figure 4, slip band line 22 can be with compensation medium 25
Intersect on spatial position, but there is no overlapping；When the slip band line 22 of phase shifter slides into the rightmost side as shown in Figure 4, most
The slip band line 22 on right side can't exceed the range of compensation medium 25.
Further, as shown in fig. 6, phase shifter further include:
The second output terminal mouth 26 being connect with fixing belt line 21, wherein signal is inputted from input port 20, via a part
Fixing belt line 21 is exported from second output terminal mouth 26, and the distance that signal is propagated is fixed value.
As seen from Figure 6, the distance of second output terminal mouth 26 to input port 20 is fixed, therefore signal is from second
The phase that output port 26 exports is fixed.Therefore, second output terminal mouth 26 may be considered zero phase port.And signal
The first phase shift and signal the second phase shift equal in magnitude, and opposite in phase, thereby it is ensured that with the same phase shift minor matters
The phase for the signal that the phase and second output terminal mouth 26 of the signal of 23 two the first output ports 24 outputs being connected export
The absolute value of difference be equal.
Further, phase shift minor matters are slow-wave structure, the amount of phase shift generated for increasing phase shift minor matters to signal.Wherein,
Slow-wave structure can be helical line slow-wave structure or serpentine slow-wave structure, and the present invention is with no restrictions.
It is understood that by changing groove width and groove depth such as Fig. 4, Fig. 5 and Fig. 6 middle polyline type slow-wave structure, it can be with
Realize the different phase shift ratio of phase shifter.
Further, phase shifter further include:
Media units at least one phase shift minor matters are set, for changing the effective dielectric constant of phase shift minor matters.
Similarly, by the way that media units are arranged in phase shift minor matters, it can vary in the effective dielectric constant of phase shift minor matters,
And then realize the different phase shift ratio of phase shifter.
Further, two phase shift minor matters of phase shifter are located at the ipsilateral of slip band line in Fig. 4, Fig. 5 and Fig. 6, certainly, such as
Shown in Fig. 7, two phase shift minor matters of phase shifter may be located on the heteropleural of slip band line.
Further, phase shifter further include:
The cable being connect with input port, the first output port and second output terminal mouth.
Further, phase shifter further include:
Be set to fixing belt line 21, slip band line 22, phase shift minor matters 23 and the outside of compensation medium 25, for fixed or
Install fixing belt line 21, slip band line 22, phase shift minor matters 23 and compensation medium 25 cavity 27.
It should be noted that the connection type between fixing belt line and slip band line is coupling electrical connection or directly contacts electricity
Connection；Connection type between slip band line and at least one phase shift minor matters is coupling electrical connection or directly contacts electrical connection.When
So, the connection type between other structures provided in an embodiment of the present invention can also couple electrical connection or directly contact is electrically connected
It connects.
Optionally, phase shifter provided in an embodiment of the present invention can be suspended mictrostrip phase shifter, or other classes
The phase shifter of type, the present invention is with no restrictions.
Illustratively, by taking the phase shifter in Fig. 8 as an example, four the first output ports 24 are followed successively by the first output from left to right
Port A, the first output port B, the first output port C and the first output port D, the shifting to be achieved of phase shifter are comparably 1:
2 (i.e. the shifting of the first output port B and the first output port A are comparably 1:2).Signal is passed to by input port 20 by cable
In the suspended mictrostrip phase shifter, by cable in the first output port 24 and second output terminal mouth 26 by the signal of out of phase
On feed antenna array element.When slip band line 22 slides to the right along horizontal direction, input port 20 at this time
The distance of one output port A and the first output port B increase, and the phase of the first output port A and the first output port B output is
Lag；The distance of input port the 20 to the first output port C and the first output port D reduce, the first output port C and first
The phase of output port D output is advanced.Theoretically, during slip band line 22 slides, in same phase shift minor matters, letter
It is equal to signal from input port to another output mouth to the reduction amount of the distance of an output port number from input port
The increase of distance.The power of first output port A and the first output port D are equal；First output port B and the first output end
The power of mouth C is equal.Slip band line 22 slides identical distance L, connect with the first output port A and the first output port D
Phase shift minor matters 23 on the phase that changes be in the phase shift minor matters 23 being connect with the first output port B and the first output port C
2 times of the phase of change, zero phase port (i.e. second output terminal mouth 26) phase remains unchanged in sliding process.Therefore it slides
After same distance L, the amount of phase shift of phase shifter delivery outlet is respectively:
First the A: the first output port of output port B: second output terminal mouth: first the C: the first output port of output port D
=-2:-1:0:1:2.Wherein, negative sign indicates that the phase of the signal of output port output is lag.
Similarly, when slip band line 22 slides to the left along horizontal direction, input port to the first output port A
Reduce with the distance of the first output port B, the phase of the first output port A and the first output port B output is advanced；Input
Port increases to the distance of the first output port C and the first output port D, the first output port C and the first output port D output
Phase be lag.After sliding same distance L, the amount of phase shift of phase shifter delivery outlet is respectively:
First the A: the first output port of output port B: second output terminal mouth: first the C: the first output port of output port D
=2:1:0:-1:-2.
Illustratively, by taking the phase shifter in Fig. 9 as an example, phase shifter includes three phase shift minor matters 23, six first outputs altogether
Port 24 be followed successively by from left to right the first output port A, the first output port B, the first output port C, the first output port D,
First output port E and the first output port F, the shifting to be achieved of phase shifter are comparably 1:2:3 (i.e. the first output port C
Shifting with the first output port B and the first output port A is comparably 1:2:3).Signal is passed to by input port 20 by cable
In the suspended mictrostrip phase shifter, by cable in the first output port 24 and second output terminal mouth 26 by the signal of out of phase
On feed antenna array element.When slip band line 22 slides to the right along horizontal direction, input port to first at this time
The distance of output port A, the first output port B and the first output port C increase, the first output port A, the first output port B
Phase with the first output port C output is lag；Input port is to the first output port D, the first output port E and first
The distance of output port F reduces, and the phase of the first output port D, the first output port E and the first output port F output is super
Preceding.Theoretically, during slip band line 22 slides, in same phase shift minor matters, signal is exported from input port to one
The reduction amount of the distance of port is equal to signal from input port to the increase of the distance of another output mouth.First output end
The power of mouth A and the first output port F is equal；The power of first output port B and the first output port E are equal；First output
The power of port C and the first output port D are equal.Slip band line 22 slides identical distance L, with the first output port B and
The phase changed in the phase shift minor matters 23 of first output port E connection is connected with the first output port C and the first output port D
2 times of the phase changed in the phase shift minor matters 23 connect；In the phase shift branch being connect with the first output port A and the first output port F
The phase changed on section 23 is the phase changed in the phase shift minor matters 23 connecting with the first output port C and the first output port D
3 times of position, zero phase port (i.e. second output terminal mouth 26) phase remains unchanged in sliding process.Therefore sliding same distance
After L, the amount of phase shift of phase shifter delivery outlet is respectively:
First output port the B: the first output port of the A: the first output port C: second output terminal mouth: the first output port D:
First the E: the first output port of output port F=-3:-2:-1:0:1:2:3.Wherein, negative sign indicates the letter of output port output
Number phase be lag.
Similarly, when slip band line 22 slides to the left along horizontal direction, input port to the first output port
A, the distance of the first output port B and the first output port C reduce, and the first output port A, the first output port B and first are defeated
The phase of exit port C output is advanced；Input port is to the first output port D, the first output port E and the first output port
The distance of F increases, and the phase of the first output port D, the first output port E and the first output port F output is lag.Sliding
After same distance L, the amount of phase shift of phase shifter delivery outlet is respectively:
First output port the B: the first output port of the A: the first output port C: second output terminal mouth: the first output port D:
First the E: the first output port of output port F=3:2:1:0:-1:-2:-3.
It should also be noted that, when designing phase shifter provided in an embodiment of the present invention, it can be according to actual phase shifter
Size is designed the arrangement of phase shifter inside phase shift minor matters.As shown in Figure 10, multiple phase shift minor matters, which can be arranged successively, sets
It sets.
It includes input port that the embodiment of the present invention, which provides a kind of phase shifter and antenna, the phase shifter, is connect with input interface
Fixing belt line, the slip band line being connect with fixing belt line, at least one phase shift minor matters being connect with slip band line, wherein sliding
Dynamic band line is slided relative to fixing belt line, and each phase shift minor matters are connected with two the first output ports；Phase shifter further include: mend
Repay medium, compensation medium is overlapping with sliding stripline portions when slip band line is slided relative to fixing belt line, for changing with benefit
Repay the effective dielectric constant of the slip band line of medium overlapping part；Wherein, when slip band line is along first direction or second direction
When relative to the sliding of fixing belt line, equal in magnitude, and the opposite in phase of the second phase shift of the first phase shift and signal of signal, first
Phase shift is the phase shift that the distance changed when slip band line is slided relative to fixing belt line generates signal；Second phase shift is slip band
The phase shift that the dielectric constant of compensation medium generates signal in the changing unit of overlapping part when line is slided relative to fixing belt line.
Description based on the above embodiment, due to being added to compensation medium in phase shifter, compensation medium for changing with
The effective dielectric constant of the slip band line of compensation medium overlapping part, therefore, when slip band line is slided relative to fixing belt line,
Equal in magnitude, and the opposite in phase of second phase shift of the first phase shift and signal of signal, i.e., slip band line is relative to fixing belt line
The variation of overlapping part when the distance changed when sliding slides the phase shift that signal generates with slip band line relative to fixing belt line
The phase shift that the dielectric constant of compensation medium generates signal in part is cancelled out each other, so that the phase of signal will not be because of slip band
Relative motion between line and fixing belt line and change, improve the effect of phase shifter.
The embodiment of the present invention also provides a kind of antenna, including with it is above-mentioned as Fig. 4 to Figure 10 it is one of any shown in phase shift
Device, and at least one antenna element being connect with phase shifter.
Further, phase shifter is connect by the cable in phase shifter at least one antenna element.
For phase shifter description for details, reference can be made to it is above-mentioned as Fig. 4 into embodiment shown in Fig. 10 to the correlation of phase shifter
Description, details are not described herein again.
Description based on the above embodiment, due to being added to compensation medium in phase shifter, compensation medium for changing with
The effective dielectric constant of the slip band line of compensation medium overlapping part, therefore, when slip band line is slided relative to fixing belt line,
Equal in magnitude, and the opposite in phase of second phase shift of the first phase shift and signal of signal, i.e., slip band line is relative to fixing belt line
The variation of overlapping part when the distance changed when sliding slides the phase shift that signal generates with slip band line relative to fixing belt line
The phase shift that the dielectric constant of compensation medium generates signal in part is cancelled out each other, so that the phase of signal will not be because of slip band
Relative motion between line and fixing belt line and change, improve the effect of phase shifter.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of phase shifter, including input port, the fixing belt line connecting with the input port are connect with the fixing belt line
Slip band line, at least one phase shift minor matters being connect with the slip band line, wherein the slip band line is relative to described solid
Fixed band line slides, and each phase shift minor matters are connected with two the first output ports；It is characterized in that, the phase shifter also wraps
It includes:
Compensation medium, the compensation medium when the slip band line is slided relative to the fixing belt line with the slip band line
Part is overlapping, for changing the effective dielectric constant of the slip band line with the compensation medium overlapping part；
Wherein, when the slip band line is slided along first direction or second direction relative to the fixing belt line, signal
First phase shift and the second phase shift of the signal it is equal in magnitude, and opposite in phase, first phase shift are the slip band line
The phase shift that the distance changed when relative to fixing belt line sliding generates the signal；Second phase shift is the sliding
When being slided with line relative to the fixing belt line in the changing unit of the overlapping part dielectric constant of compensation medium to described
The phase shift that signal generates.
2. phase shifter according to claim 1, which is characterized in that the phase shifter further include:
The second output terminal mouth being connect with the fixing belt line, wherein the signal is inputted from the input port, via one
Divide the fixing belt line, exported from the second output terminal mouth, the distance that the signal is propagated is fixed value.
3. phase shifter according to claim 1 or 2, which is characterized in that the phase shift minor matters are slow-wave structure.
4. phase shifter according to claim 1 or 2, which is characterized in that the phase shifter further include:
Media units at least one described phase shift minor matters are set, and effective dielectric for changing the phase shift minor matters is normal
Number.
5. phase shifter according to claim 1 or 2, which is characterized in that if the phase shifter includes at least two shiftings
Phase minor matters, then at least two phase shift minor matters are located at the ipsilateral or heteropleural of the slip band line.
6. phase shifter according to claim 2, which is characterized in that the phase shifter further include:
The cable being connect with the input port, first output port and the second output terminal mouth.
7. phase shifter described in any one of -2,6 according to claim 1, which is characterized in that the phase shifter further include:
Be set to it is on the outside of the fixing belt line, the slip band line, the phase shift minor matters and the compensation medium, for fixing
Or the installation fixing belt line, the slip band line, the phase shift minor matters and the compensation medium cavity.
8. phase shifter according to claim 1, which is characterized in that the company between the fixing belt line and the slip band line
Mode is connect as coupling electrical connection or directly contact electrical connection；Company between the slip band line and at least one described phase shift minor matters
Mode is connect as coupling electrical connection or directly contact electrical connection.
9. a kind of antenna, which is characterized in that including having the phase shifter as described in any one of claim 1-8, Yi Jiyu
At least one antenna element of the phase shifter connection.
10. antenna according to claim 9, which is characterized in that the phase shifter by cable in the phase shifter with
At least one described antenna element connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510999449.8A CN106921011B (en) | 2015-12-28 | 2015-12-28 | A kind of phase shifter and antenna |
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| CN201510999449.8A CN106921011B (en) | 2015-12-28 | 2015-12-28 | A kind of phase shifter and antenna |
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| CN106921011A CN106921011A (en) | 2017-07-04 |
| CN106921011B true CN106921011B (en) | 2019-07-19 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232377B (en) * | 2017-12-22 | 2024-06-18 | 广东盛路通信科技股份有限公司 | Ultra-Wideband 690-960MHz Phase Shifter |
| CN108232376A (en) * | 2017-12-22 | 2018-06-29 | 广东盛路通信科技股份有限公司 | Ultra wide band 1710-2700MHz phase shifters |
| CN110783666A (en) * | 2018-07-31 | 2020-02-11 | 上海华为技术有限公司 | Phase shifter and electrically tunable antenna |
| CN111180892B (en) * | 2018-11-09 | 2021-05-07 | 京信通信技术(广州)有限公司 | Antenna and phase shifter |
| US11239543B2 (en) * | 2019-06-27 | 2022-02-01 | Commscope Technologies Llc | Base station antennas having phase-error compensation and related methods of operation |
| CN112563689A (en) * | 2019-09-10 | 2021-03-26 | 康普技术有限责任公司 | Phase shifter |
| CN113013625B (en) * | 2019-12-20 | 2022-11-04 | 华为机器有限公司 | Beam adjusting assembly and antenna system |
| CN115149233A (en) * | 2019-12-24 | 2022-10-04 | 华为技术有限公司 | Filter, phase shifter and related device |
| WO2022156385A1 (en) * | 2021-01-19 | 2022-07-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Device for power dividing and phase shifting |
| CN114976647A (en) * | 2022-05-09 | 2022-08-30 | 南通大学 | Dielectric phase shifter for base station array antenna |
| CN117769788A (en) * | 2022-07-26 | 2024-03-26 | 京东方科技集团股份有限公司 | Tunable phase shifter and electronic equipment |
| CN117810697A (en) * | 2022-09-26 | 2024-04-02 | 华为技术有限公司 | Phase shifter, base station antenna and base station |
| CN115513665A (en) * | 2022-10-28 | 2022-12-23 | 中信科移动通信技术股份有限公司 | Phase shifter and base station antenna |
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| CN202042575U (en) * | 2011-03-28 | 2011-11-16 | 京信通信系统（中国）有限公司 | Coaxial medium phase shifting system, phase shifter and phase shifting driving device |
| CN103490166A (en) * | 2013-09-23 | 2014-01-01 | 摩比天线技术（深圳）有限公司 | Phase compensation method of TD intelligent antenna and phase compensation structure of TD intelligent antenna |
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| CN202042575U (en) * | 2011-03-28 | 2011-11-16 | 京信通信系统（中国）有限公司 | Coaxial medium phase shifting system, phase shifter and phase shifting driving device |
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| CN106921011A (en) | 2017-07-04 |
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