CN106505289B - A kind of wideband waveguide power splitter - Google Patents
A kind of wideband waveguide power splitter Download PDFInfo
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- CN106505289B CN106505289B CN201611183233.5A CN201611183233A CN106505289B CN 106505289 B CN106505289 B CN 106505289B CN 201611183233 A CN201611183233 A CN 201611183233A CN 106505289 B CN106505289 B CN 106505289B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/181—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being hollow waveguides
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Abstract
The invention discloses a kind of wideband waveguide power splitters.The wideband waveguide power splitter includes the radiating guide of lower layer, and upper layer waveguide includes that coupled waveguide and function partial wave are led, and wherein radiating guide includes radiated wave guide wall and multiple mutually isolated radiated wave guide cavities；Coupled waveguide includes coupled wave guide wall and multiple mutually isolated coupled wave guide cavities, coupling spacing block and secondary power distribution block；Function partial wave lead including function partial wave guide wall and with road waveguide cavity, branch waveguide chamber, level-one power distribution block, level-one impedance matching block and second level impedance matching block；The part of upper and lower level wave guide wall overlapping is known as upper and lower level common wall, and it is provided with multiple straight line coupling slots, and the orientation of each straight line coupling slot is identical as the orientation of each radiated wave guide cavity, it is identical as the rectilinear direction of each straight line coupling slot, and the imaginary center line of each straight line coupling slot linearly is overlapped.The wideband waveguide power splitter of the application is compared with existing waveguide power divider, the inclined coupling slot of the cascaded structure of original narrowband is replaced using the horizontal linear coupling slot of the parallel-connection structure in broadband, working band short of width 10% is expanded to 20% or more, i.e. bandwidth is enhanced about more than once.
Description
Technical field
The present invention relates to microwave technical fields, more particularly to a kind of wideband waveguide power splitter.
Background technique
Waveguide power divider is a kind of important microwave passive component, is widely used in the feeder network etc. of waveguide Slot array
Field, effect is that the electromagnetic power signal inputted all the way is divided into two-way or multiple-channel output to scale, or two-way
Or multi-channel electromagnetic power signal stacks up from exporting all the way, has many advantages, such as that loss is small, power capacity is big.
The design method of the feeder network of plate Slot array, such as Gu Wei are described in many documents or professional book
" design of Planar Slot Antenna subarray excited device and the bandwidth point that army delivers in the second phase in 2012 " modern radar " periodical
Common various subarray excited mounted casts both at home and abroad are described in an analysis " text, these models are by various forms of power splitters
Feeder network is constituted, referring to figure 1 and figure 2: Fig. 1 is by the power splitter model of excitation seam excitation, specifically by spoke
Ejected wave leads, coupled waveguide, waveguide, coupling slot and excitation is motivated to stitch the three layers of waveguiding structure constituted；Fig. 2 is swashed by waveguide T junction
The power splitter model encouraged, two layers of waveguiding structure being specifically made of radiating guide, coupled waveguide, excitation waveguide and coupling slot.
These existing power splitter models exist following insufficient: first, since coupled waveguide is to radiating guide excitation energy
It is to be realized by coupling slot, these inclined, staggered coupling slots are narrowbands, and relative bandwidth is less than 10%, when this
When a little coupling slot series connection, frequency range will be further reduced, this will seriously limit the use scope of antenna；Second, due to
Half waveguide wavelength of coupled waveguide is related with the width of radiating guide, causes the size of the width of coupled waveguide bigger, such as
Be usually 20mm or more in X-band, this biggish coupled waveguide of width dimensions will increase plate aerial feeder network design,
The difficulty of Antenna support structure design can also generate interference with scanner, affect sweeping for antenna in antenna large rotation angle
Retouch ability.
Thus, it is desirable to have a kind of technical solution overcomes or at least mitigates at least one drawbacks described above of the prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of wideband waveguide power splitters to overcome or at least mitigate the prior art extremely
A few drawbacks described above.
To achieve the above object, the present invention provides a kind of wideband waveguide power splitter, the wideband waveguide power splitter packet
Upper layer and lower layer waveguide is included, lower layer's waveguide is known as radiating guide, and upper layer waveguide includes that coupled waveguide and function partial wave are led；
The radiating guide includes radiated wave guide wall and multiple mutually isolated radiation that the segmentation of radiated wave guide wall is surrounded
Waveguide cavity；
The coupled waveguide includes multiple mutually isolated coupled waveguides that coupled wave guide wall and coupled wave guide wall are surrounded
Chamber, coupling spacing block and secondary power distribute block；
The function partial wave leads surrounding including function partial wave guide wall and the segmentation of function partial wave guide wall and road waveguide cavity, branch waveguide
Chamber, level-one power distribution block, level-one impedance matching block and second level impedance matching block；
The radiated wave guide wall partly overlaps with the coupled wave guide wall and function partial wave guide wall, and the part of overlapping is known as
Lower layer's common wall；
The coupled wave guide wall partly overlaps with the function partial wave guide wall, and the part of overlapping is known as coupling function and divides common wall；
Described and road waveguide cavity is connected to the branch waveguide chamber, the branch waveguide chamber pass through coupling function divide common wall with
The coupled wave guide cavity connection；
Multiple mutually isolated straight line coupling slots, each straight line coupling slot connection one are provided on the upper and lower level common wall
A radiated wave guide cavity, also, each straight line coupling slot or every two adjacent straight line coupling slot are connected to a coupled wave
Guide cavity；
The orientation of each straight line coupling slot is identical as the orientation of each radiated wave guide cavity, with each straight line
The rectilinear direction of coupling slot is identical, and the imaginary center line of each straight line coupling slot linearly is overlapped；
Each level-one power distribution block in the function partial wave guide wall will be for that will pass through the electricity of the level-one power distribution block
Magnetic power signal is divided into the two paths of signals of desired power ratio and phase relation；Secondary power in the coupled wave guide wall
Distribution block is used to that desired power ratio will to be divided by the electromagnetic power signal of secondary power distribution block and phase is closed
The two paths of signals of system；
Level-one power distribution block and secondary power distribution block cooperation, so that each straight line coupling slot be made to mutually form shape in parallel
Formula, the waveguide for carrying electromagnetic power signal are identical with straight line coupling slot quantity by being formed after each power distribution block branch
Waveguide arm, each waveguide arm enter from the straight line coupling slot.
Preferably, the quantity of the radiated wave guide cavity is four；
The quantity of the straight line coupling slot is four；
The quantity of the level-one power distribution block is one, is arranged in the branch waveguide chamber, for that will pass through it certainly
The electromagnetic power signal branch of body, to form the first branch and second branch；
The quantity of the secondary power distribution block is two, is separately positioned in the coupled wave guide cavity, one of them two
Grade power distribution block will continue branch by the first branch of its own, to form two-way final stage branch；Another second level
Power distribution block will continue branch by the second tunnel of its own, to form two-way final stage branch；
The electromagnetic power signal of every road final stage branch enters the straight line coupling slot.
Preferably, the quantity of the radiated wave guide cavity is three；
The quantity of the straight line coupling slot is three；
The quantity of the level-one power distribution block is one, is arranged in the branch waveguide chamber, for that will pass through it certainly
The electromagnetic power signal branch of body, to form the first branch and second branch；
The quantity of the secondary power distribution block is one, is arranged in the coupled wave guide cavity, secondary power distribution
Block will continue branch by the first branch of its own, to form two-way final stage branch；
Every road final stage branch and the electromagnetic power signal of second branch enter the straight line seam.
Preferably, the quantity of the radiated wave guide cavity is six；
The quantity of the straight line coupling slot is six；
The quantity of the level-one power distribution block is two, is arranged in the branch waveguide chamber, for that will pass through it certainly
The electromagnetic power signal branch of body, to form the first branch, second branch and third branch；
The quantity of the secondary power distribution block is three, is arranged in the coupled wave guide cavity, secondary power distribution
Block will continue branch by each branch of its own, to form final stage branch；
The electromagnetic power signal of every road final stage branch enters the straight line coupling slot.
Preferably, the wideband waveguide power splitter further comprises one or more level-one impedance matching blocks and multiple two
Grade impedance matching block；
The level-one impedance matching block setting is in described and road waveguide cavity；The second level impedance matching block is arranged described
Branch waveguide is intracavitary；
The level-one impedance matching block and the level-one power distribution block cooperate, and pass through its own for electromagnetic power signal
Described in Shi Shixian and the matching of road waveguide cavity；Shown second level impedance matching block and secondary power distribution block cooperation, for electricity
Magnetic power signal realizes the matching of the branch waveguide chamber when passing through its own.
Preferably, described and road waveguide cavity is waveguide bend chamber, for facilitating the cascade of multiple waveguide power dividers.
The wideband waveguide power splitter of the application is compared with existing waveguide power divider, using the parallel-connection structure in broadband
Horizontal linear coupling slot replaces the inclination coupling slot of the cascaded structure of original narrowband, and working band short of width 10% is expanded to
20% or more, i.e. bandwidth is enhanced about more than once, and expands the use scope of antenna；Simultaneously because using horizontal linear coupling slot
Form, it is even more small so as to make the width of coupled wave guide cavity of the application shorten to 3/4ths of original width, especially
It is that width of the coupled wave guide cavity apart from straight line coupling slot center line side can reduce half with original width, such as in X
Wave band will reduce 5mm to 10mm, the substantially reduction of coupled wave guide cavity width dimensions, for broadband plate stitch battle array feeder network design,
Antenna support structure design provides convenience, interference when avoiding the scanning of antenna wide-angle between coupled waveguide and scanner,
Improve the scan capability of antenna.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the waveguide power divider of the prior art.
Fig. 2 is the structural schematic diagram of the waveguide power divider of another prior art.
Fig. 3 is the structural schematic diagram of the wideband waveguide power splitter of the application first embodiment.
Fig. 4 is the top view of wideband waveguide power splitter shown in Fig. 3.
Fig. 5 is the structural schematic diagram of the wideband waveguide power splitter of the application second embodiment.
Fig. 6 is the top view of wideband waveguide power splitter shown in fig. 5.
Fig. 7 is the structural schematic diagram of the wideband waveguide power splitter of the application 3rd embodiment.
Fig. 8 is the top view of wideband waveguide power splitter shown in Fig. 7.
Fig. 9 is the structural schematic diagram of the wideband waveguide power splitter of the application fourth embodiment.
Figure 10 is the top view of wideband waveguide power splitter shown in Fig. 9.
Figure 11 is the variation diagram with road standing-wave ratio with frequency of first embodiment.
Figure 12 is each branch amplitude of first embodiment with the variation diagram of frequency.
Figure 13 is each branch phase of first embodiment with the variation diagram of frequency.
Figure 14 is the variation diagram with road standing-wave ratio with frequency of second embodiment.
Figure 15 is each branch amplitude of second embodiment with the variation diagram of frequency.
Figure 16 is each branch phase of second embodiment with the variation diagram of frequency.
Figure 17 is the variation diagram with road standing-wave ratio with frequency of 3rd embodiment.
Figure 18 is each branch amplitude of 3rd embodiment with the variation diagram of frequency.
Figure 19 is each branch phase of 3rd embodiment with the variation diagram of frequency.
Appended drawing reference:
| 1 | Radiating guide | 22 | Coupled wave guide cavity |
| 2 | Coupled waveguide | 23 | Couple spacing block |
| 3 | Function partial wave is led | 31 | Function partial wave guide wall |
| 4 | Straight line coupling slot | 32 | With road waveguide cavity |
| 7 | Upper and lower level common wall | 33 | Branch waveguide chamber |
| 8 | Coupling function divides common wall | 51 | Level-one power distribution block |
| 11 | Radiated wave guide wall | 52 | Secondary power distributes block |
| 12 | Radiated wave guide cavity | 61 | Level-one impedance matching block |
| 21 | Coupled wave guide wall | 62 | Second level impedance matching block |
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.Under
Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "upper", "lower" "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention protection scope.
Fig. 3 is the structural schematic diagram of the wideband waveguide power splitter of the application first embodiment；Fig. 4 is width shown in Fig. 3
The top view of band waveguide power splitter.Fig. 5 is the structural schematic diagram of the wideband waveguide power splitter of the application second embodiment；Figure
6 be the top view of wideband waveguide power splitter shown in fig. 5.Fig. 7 is the wideband waveguide power splitter of the application 3rd embodiment
Structural schematic diagram.Fig. 8 is the top view of wideband waveguide power splitter shown in Fig. 7.Fig. 9 is the width of the application first embodiment
Another structural schematic diagram of band waveguide power splitter.Figure 10 is the top view of wideband waveguide power splitter shown in Fig. 9.
Wideband waveguide power splitter as shown in Figures 3 to 10 includes upper layer and lower layer waveguide, and lower layer's waveguide is known as radiating guide
1, upper layer waveguide includes that coupled waveguide 2 and function partial wave lead 3；
Radiating guide 1 includes radiated wave guide wall 11 and multiple mutually isolated radiation that the segmentation of radiated wave guide wall 11 is surrounded
Waveguide cavity 12；
Coupled waveguide 2 includes multiple mutually isolated coupled waveguides that coupled wave guide wall 21 and coupled wave guide wall 21 are surrounded
Chamber 22, coupling spacing block 23 and secondary power distribute block 52；
It includes that function partial wave guide wall 31 and function partial wave guide wall 31 divide surrounding and road waveguide cavity 32, branch that function partial wave, which leads 3,
Waveguide cavity 33, level-one power distribution block 51, level-one impedance matching block 61 and second level impedance matching block 62；
Radiated wave guide wall 11 partly overlaps with coupled wave guide wall 21 and function partial wave guide wall 31, and the part of overlapping is known as up and down
Layer common wall 7；
Coupled wave guide wall 21 partly overlaps with function partial wave guide wall 31, and the part of overlapping is known as coupling function and divides common wall 8；
Be connected to road waveguide cavity 32 with branch waveguide chamber 33, branch waveguide chamber 33 pass through coupling function divide common wall 8 with it is described
Coupled wave guide cavity 22 is connected to；
Multiple mutually isolated straight line coupling slots 4, each connection of straight line coupling slot 4 one are provided on upper and lower level common wall 7
A radiated wave guide cavity 12, also, each straight line coupling slot 4 or every two adjacent straight line coupling slot 4 are connected to a coupled wave
Guide cavity 22；
The orientation of each straight line coupling slot 4 is identical as the orientation of each radiated wave guide cavity 12, with each straight line
The rectilinear direction of coupling slot 4 is identical, and the imaginary center line of each straight line coupling slot 4 linearly is overlapped；
Each level-one power distribution block 51 in function partial wave guide wall 31 will be for that will pass through the electromagnetism of level-one power distribution block 51
Power signal is divided into the two paths of signals of desired power ratio and phase relation；Secondary power distribution in coupled wave guide wall 21
Block 52 by the electromagnetic power signal of secondary power distribution block 52 for that will be divided into desired power ratio and phase relation
Two paths of signals；
Level-one power distribution block 51 and secondary power distribution block 52 cooperate, so that each straight line coupling slot 4 be made to mutually form
Parallel form carries the waveguide of electromagnetic power signal by being formed and straight line coupling slot quantity after each power distribution block branch
Identical waveguide arm, each waveguide arm enter from the straight line coupling slot.
The wideband waveguide power splitter of the application is compared with existing waveguide power divider, using the parallel-connection structure in broadband
Horizontal linear coupling slot replaces the inclination coupling slot of the cascaded structure of original narrowband, and working band short of width 10% is expanded to
20% or more, i.e. bandwidth is enhanced about more than once, and expands the use scope of antenna；Simultaneously because using horizontal linear coupling slot
Form, it is even more small so as to make the width of coupled wave guide cavity of the application shorten to 3/4ths of original width, especially
It is that width of the coupled wave guide cavity apart from straight line coupling slot center line side can reduce half with original width, such as in X
Wave band will reduce 5mm to 10mm, the substantially reduction of coupled wave guide cavity width dimensions, for broadband plate stitch battle array feeder network design,
Antenna support structure design provides convenience, interference when avoiding the scanning of antenna wide-angle between coupled waveguide and scanner,
Improve the scan capability of antenna.
Referring to Fig. 3 and Fig. 4, in the present embodiment, the quantity of radiated wave guide cavity 12 is four；
The quantity of straight line coupling slot 4 is four；
The quantity of level-one power distribution block 51 is one, is arranged in branch waveguide chamber 33, for that will pass through its own
Electromagnetic power signal branch, to form the first branch and second branch；
The quantity that secondary power distributes block 52 is two, is arranged in coupled wave guide cavity 22, which distributes block 52
In a secondary power distribution block 521 will by its own the first branch continue branch, to form two-way final stage branch；
Another secondary power, which distributes block 522, to continue branch by the first branch of its own, to form two-way final stage branch；
The electromagnetic power signal of every road final stage branch enters a straight line coupling slot.
It is understood that the quantity of radiated wave guide cavity 12 can according to need and sets itself.
Referring to Fig. 3 to Fig. 6, in the first, second embodiment, the quantity of radiated wave guide cavity 12 is four；Straight line coupling slot 4
Quantity be four；The quantity of level-one power distribution block 51 is one, is arranged in branch waveguide chamber 33, for that will pass through it certainly
The electromagnetic power signal branch of body, to form the first branch and second branch；
The quantity that secondary power distributes block 52 is two, is separately positioned in coupled wave guide cavity 22, one of second level function
Rate, which distributes block, to continue branch by the first branch of its own, to form two-way final stage branch；Another secondary power
Branch will be continued by the second branch of its own by distributing block, to form two-way final stage branch；The electromagnetism of every road final stage branch
Power signal respectively enters the straight line coupling slot.
It is understood that as needed, radiated wave guide cavity 12 can also be other quantity.Such as Fig. 5 and Fig. 6 institute
Show, the quantity of chamber 12 is three in the third embodiment；The quantity of straight line coupling slot 4 is three；Level-one power distribution block 51
Quantity is one；It is arranged in the branch waveguide chamber 33, for its own electromagnetic power signal branch will to be passed through, thus shape
At the first branch and second branch；The quantity of the secondary power distribution block 52 is one, is arranged in the coupled wave guide cavity
In 22, which, which distributes block 52, to continue branch by the first branch of its own, to form two-way final stage branch；Often
Road final stage branch and the electromagnetic power signal of second branch respectively enter the straight line coupling slot 4.
Referring to Fig. 9 and Figure 10, the quantity of radiated wave guide cavity 12 is six；The quantity of straight line coupling slot 4 is six；Level-one function
The quantity that rate distributes block 51 is two, is arranged in branch waveguide chamber 33, and the electromagnetic power signal for that will pass through its own divides
Road, to form the first branch, second branch and third branch；The quantity that secondary power distributes block 52 is three, and setting exists
In coupled wave guide cavity 22, which, which distributes block 52, to continue branch by each branch of its own, to form final stage branch
Road；The electromagnetic power signal of every road final stage branch enters the straight line coupling slot.
It is understood that as needed, the quantity of radiated wave guide cavity can also be other quantity.Such as 5,7 or
Person is more.
Referring to Fig. 3 to Figure 10, wideband waveguide power splitter further comprises one or more 61 Hes of level-one impedance matching block
Multiple second level impedance matching blocks 62；The level-one impedance matching block 61 is arranged in the road Suo He waveguide cavity 32；Second level impedance matching
Block 62 is arranged in branch waveguide chamber 33；Level-one impedance matching block 61 and level-one power distribution block 51 cooperate, and are used for electromagnetic power
Signal is realized when passing through its own and the matching of road waveguide cavity 32；Shown second level impedance matching block 62 distributes block 52 with secondary power
The matching of branch waveguide chamber 33 is realized in cooperation when passing through its own for electromagnetic power signal.
It is understood that can be waveguide bend chamber with road waveguide chamber 32, for facilitating multiple waveguide power dividers
Cascade.In Fig. 5 and embodiment illustrated in fig. 6, this is bent to 90 °, can facilitate the cascade of multiple waveguide power dividers in this way.
The application is introduced by way of example below, it is to be understood that the citing is not constituted to the application
Any restrictions, it is not the structure to the application that any size in the citing, which is only the preferred size in embodiment,
Any restrictions.
Embodiment 1
Referring to Fig. 3 and Fig. 4, in this embodiment, the waveguide cross-section of the radiated wave guide cavity 12 in radiating guide 1 having a size of
21.3mm × 4.65mm, the waveguide cross-section of the coupled wave guide cavity 22 in coupled waveguide 2 is having a size of 14.6mm × 4mm, function partial wave
The cross sectional dimensions of 3 inner waveguide chamber of guide cavity is 19.4mm × 4mm, and function partial wave leads the branch waveguide chamber 33 in 3 and passes through coupling function point
The cross sectional dimensions of common wall 8 is 16.8mm × 4mm, and the length of straight line coupling slot 4 is 18.7mm, and wide is 3mm, and rounding
Angle, and the center line on 4 length direction of straight line coupling slot is 5.2mm apart from the shorter side of coupled waveguide 2；Level-one power distribution
It is 8.8mm × 2mm × 4mm metallic object that block 51, which is volume, secondary power distribution block 52 be two volumes in left and right be 5mm ×
The metallic object of 2mm × 4mm, the first impedance matching block 61 are that left and right two is triangular prism metallic object, bottom surface right angled triangle side
Length is 12mm, is highly 4mm, and the second impedance matching block 62 is that two volumes in left and right are 1mm × 1mm × 4mm metallic object；
Upper and lower level common wall 7 with a thickness of 0.7mm；Coupling function divides common wall 8 with a thickness of 0.8mm.The result of emulation is from Figure 11, Tu12He
Figure 13 it can be seen that the standing-wave ratio of power splitter and port from 9.25GHz to 11.25GHz in the range of less than 1.2, i.e. standing-wave ratio
Relative bandwidth less than 1.2 is greater than 20%, adjusts each off-centered position of power distribution block, each branch function needed for capable of obtaining
Divide ratio, and each branch power amplitude imbalance degree is less than ± 0.15dB, the phase unbalance degree of each branch is less than ± 2.5 degree.
Embodiment 2
Referring to Fig. 3 and Fig. 6, in this embodiment, by the wave guide direction bending of the road Fig. 3 and Tu4Zhong He waveguide cavity 32
90 °, become the structure of Fig. 5 and figure, and the second impedance matching block 62 in Fig. 3 and Fig. 4 is changed to Fig. 5 and shown in fig. 6
Two impedance matching blocks 62, and shape is right-angle prismatic column metallic object, bottom edge side length is 12mm, a height of 4mm.The result of emulation is from figure
14, Figure 15 and Figure 16 it can be seen that the standing-wave ratio of power splitter and port from 9.6GHz to 11.5GHz in the range of less than 1.2, i.e.,
Standing-wave ratio relative bandwidth less than 1.2 is about 20%, adjusts each off-centered position of power distribution block, needed for capable of obtaining
Each branch function point ratio, and each branch power amplitude imbalance degree is less than ± 0.2dB, the phase unbalance degree of each branch is less than ± 6
Degree.
Embodiment 3
As shown in Figure 7, Figure 8, in this embodiment, the waveguide cross-section size of the radiated wave guide cavity 12 in radiating guide 1
For 21.3mm × 4.65mm, the waveguide cross-section of the coupled wave guide cavity 22 in coupled waveguide 2 is having a size of 14.6mm × 4mm, function point
The height of 3 inner waveguide of waveguide cavity is that cross sectional dimensions is 19.4mm × 4mm, and function partial wave leads the branch waveguide chamber 33 in 3 across coupling
Closing function divides the cross sectional dimensions of common wall 8 to be 16.8mm × 4mm, and the length of straight line coupling slot 4a, 4b, 4c and 4d are 18.7mm,
Width is 3mm, and rounded corner, and the center line on 4 length direction of straight line coupling slot is apart from the shorter side of coupled waveguide 2
5.2mm；Level-one power distribution block 51 is 9mm × 1mm × 4mm metallic object, and it is 5mm × 2mm × 4mm that secondary power, which distributes block 52,
Metallic object；First impedance matching block 61 is left and right two, is 1mm × 1mm × 4mm metallic object, the second impedance matching block
62 be the two right-angle prismatic column metallic objects in left and right, and it is highly 4mm that one, the left side, which is 9mm for bottom surface right angled triangle side length, right
One, side is 10mm for bottom surface right angled triangle side length, is highly 4mm；Upper and lower level common wall 5 with a thickness of 0.7mm；Coupling
Function divides common wall 9 with a thickness of 0.8mm.The result of emulation is from Figure 17, Figure 18 and Figure 19 it can be seen that in 9.3GHz to 12GHz's
In range, for the standing-wave ratio of power splitter and port less than 1.2, i.e. relative bandwidth of the standing-wave ratio less than 1.2 is about 27%, is adjusted each
The off-centered position of power distribution block, each branch function needed for capable of obtaining point ratio, and each branch power amplitude imbalance degree is less than
The phase unbalance degree of ± 0.2dB, each branch are less than ± 10 degree.
Finally it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, the essence for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Mind and range.
Claims (6)
1. a kind of wideband waveguide power splitter, which is characterized in that the wideband waveguide power splitter includes upper layer and lower layer waveguide, under
Layer waveguide is known as radiating guide (1), and upper layer waveguide includes that coupled waveguide (2) and function partial wave lead (3)；
The radiating guide (1) includes that radiated wave guide wall (11) and radiated wave guide wall (11) divide the multiple mutually isolated of encirclement
Radiated wave guide cavity (12)；
The coupled waveguide (2) includes multiple mutually isolated couplings that coupled wave guide wall (21) and coupled wave guide wall (21) are surrounded
Multiplex guide cavity (22), coupling spacing block (23) and secondary power distribution block (52)；
It includes that function partial wave guide wall (31) and function partial wave guide wall (31) divide surround and road waveguide cavity that the function partial wave, which leads (3),
(32), branch waveguide chamber (33), level-one power distribution block (51), level-one impedance matching block (61) and second level impedance matching block
(62)；
The radiated wave guide wall (11) partly overlaps with the coupled wave guide wall (21) and function partial wave guide wall (31), the portion of overlapping
Divide and is known as upper and lower level common wall (7)；
The coupled wave guide wall (21) partly overlaps with the function partial wave guide wall (31), and it is public that the part of overlapping is known as coupling function point
Wall (8)；
Described and road waveguide cavity (32) is connected to the branch waveguide chamber (33), and the branch waveguide chamber (33) passes through coupling function point
Common wall (8) is connected to the coupled wave guide cavity (22)；
Multiple mutually isolated straight line coupling slots (4), each straight line coupling slot (4) are provided on the upper and lower level common wall (7)
It is connected to a radiated wave guide cavity (12), also, each straight line coupling slot (4) or every two adjacent straight line coupling slot
(4) it is connected to a coupled wave guide cavity (22)；
The orientation of each straight line coupling slot (4) is identical as the orientation of each radiated wave guide cavity (12), and each
The rectilinear direction of straight line coupling slot (4) is identical, and the imaginary center line of each straight line coupling slot (4) linearly is overlapped；
Each level-one power distribution block (51) in the function partial wave guide wall (31) will be for that will pass through the level-one power distribution block
(51) electromagnetic power signal is divided into the two paths of signals of desired power ratio and phase relation；The coupled wave guide wall (21)
Interior secondary power distribution block (52) is used to be divided by the electromagnetic power signal of secondary power distribution block (52) and wish
The power ratio of prestige and the two paths of signals of phase relation；
Level-one power distribution block (51) and secondary power distribution block (52) cooperation, to make the mutual shape of each straight line coupling slot (4)
At parallel form, the waveguide of electromagnetic power signal is carried by being formed and straight line coupling slot number after each power distribution block branch
Identical waveguide arm is measured, each waveguide arm enters from the straight line coupling slot.
2. wideband waveguide power splitter as described in claim 1, which is characterized in that the quantity of the radiated wave guide cavity (12) is
Four；
The quantity of the straight line coupling slot (4) is four；
The quantity of the level-one power distribution block (51) is one, is arranged in the branch waveguide chamber (33), for that will pass through
The electromagnetic power signal branch of its own, to form the first branch and second branch；
The quantity of secondary power distribution block (52) is two, be separately positioned on two described in coupled wave guide cavity (22),
One of secondary power distribution block will continue branch by the first branch of its own, to form two-way final stage branch；Separately
Outer secondary power distribution block will continue branch by the second branch of its own, to form two-way final stage branch；
The electromagnetic power signal of every road final stage branch enters the straight line coupling slot.
3. wideband waveguide power splitter as described in claim 1, which is characterized in that the quantity of the radiated wave guide cavity (12) is
Three；
The quantity of the straight line coupling slot (4) is three；
The quantity of the level-one power distribution block (51) is one, is arranged in the branch waveguide chamber (33), for that will pass through
The electromagnetic power signal branch of its own, to form the first branch and second branch；
The quantity of secondary power distribution block (52) is one, is arranged in the coupled wave guide cavity (22), the secondary power
Branch will be continued by the first branch of its own by distributing block (52), to form two-way final stage branch；
Every road final stage branch and the electromagnetic power signal of second branch enter the straight line coupling slot.
4. wideband waveguide power splitter as described in claim 1, which is characterized in that the quantity of the radiated wave guide cavity (12) is
Six；
The quantity of the straight line coupling slot (4) is six；
The quantity of the level-one power distribution block (51) is two, is arranged in the branch waveguide chamber (33), for that will pass through
The electromagnetic power signal branch of its own, to form the first branch, second branch and third branch；
The quantity of secondary power distribution block (52) is three, is arranged in the coupled wave guide cavity (22), the secondary power
Branch will be continued by each branch of its own by distributing block (52), to form final stage branch；
The electromagnetic power signal of every road final stage branch enters the straight line coupling slot.
5. the wideband waveguide power splitter as described in any one of claim 2 to 4, which is characterized in that the broadband wave
Leading power splitter further comprises one or more level-one impedance matching blocks (61) and multiple second level impedance matching blocks (62)；
Level-one impedance matching block (61) setting is in described and road waveguide cavity (32)；The second level impedance matching block (62) sets
It sets in the branch waveguide chamber (33)；
The level-one impedance matching block (61) and the level-one power distribution block (51) cooperate, and pass through it for electromagnetic power signal
Itself when realize described and road waveguide cavity (32) matchings；Shown second level impedance matching block (62) and the secondary power distribute block
(52) cooperate, the matching of the branch waveguide chamber (33) is realized when passing through its own for electromagnetic power signal.
6. wideband waveguide power splitter as described in claim 1, which is characterized in that described and road waveguide cavity (32) are waveguide bend
Chamber, for facilitating the cascade of multiple waveguide power dividers.
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| CN112072256A (en) * | 2020-09-23 | 2020-12-11 | 河北东森电子科技有限公司 | Power synthesis network based on waveguide coupling gap |
| CN112186340B (en) * | 2020-09-29 | 2023-11-07 | 京东方科技集团股份有限公司 | Antenna and manufacturing method thereof |
| CN114744390B (en) * | 2022-04-26 | 2024-01-26 | 北京华镁钛科技有限公司 | Differential waveguide power divider |
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| CN105680138A (en) * | 2014-11-20 | 2016-06-15 | 中国航空工业集团公司雷华电子技术研究所 | Miniature wideband waveguide power divider |
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| CN105680138A (en) * | 2014-11-20 | 2016-06-15 | 中国航空工业集团公司雷华电子技术研究所 | Miniature wideband waveguide power divider |
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