CN109273815A - A kind of multilayer dielectricity of KA wave band integrates transition and the longitudinal direction function separation structure of suspended substrate stripline - Google Patents
A kind of multilayer dielectricity of KA wave band integrates transition and the longitudinal direction function separation structure of suspended substrate stripline Download PDFInfo
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- CN109273815A CN109273815A CN201811215480.8A CN201811215480A CN109273815A CN 109273815 A CN109273815 A CN 109273815A CN 201811215480 A CN201811215480 A CN 201811215480A CN 109273815 A CN109273815 A CN 109273815A
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- circuit board
- patch
- suspended substrate
- transition
- substrate stripline
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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
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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
Abstract
The invention discloses the transition structure that a kind of multilayer dielectricity of KA wave band integrates suspended substrate stripline, circuit board B and circuit board group are arranged alternately composition suspension cable architecture from top to bottom, and the upper and lower end face for suspending cable architecture is respectively provided with the circuit board A parallel with circuit board B；Hollow out, the hollow out composition waveguide cavity of circuit board group and circuit board B are set on circuit board group and circuit board B；Metal routing structure is set on circuit board B, and metal routing structure includes excitation patch, and patch is motivated to be located in waveguide cavity, and the metal column perpendicular to circuit board B is evenly equipped in the inner wall of waveguide cavity.The invention also discloses longitudinal function separation structures that a kind of multilayer dielectricity of KA wave band integrates suspended substrate stripline.A kind of multilayer dielectricity of KA wave band of the present invention integrates transition and the longitudinal direction function separation structure of suspended substrate stripline, it is slotted by medium, the mode of the evenly distributed metal column of surrounding forms rectangular waveguide, metal column and the metal of dielectric-slab printed on both sides collectively act as the metallic walls of rectangular waveguide, can easily realize the waveguiding structure of various sizes.
Description
Technical field
The present invention relates to microwave technical fields, and in particular to a kind of multilayer dielectricity of KA wave band integrate suspended substrate stripline transition and
Longitudinal function separation structure.
Background technique
In recent years, frequency microwave technology is greatly promoted the development of all trades and professions, miniaturization, low power consumption, low cost, height
Integrated level becomes the Main Trends of The Development of microwave circuit and system.It is a kind of very good novel of performance that medium, which integrates suspended substrate stripline,
Microwave transmission line system has low-loss, low dispersion, low cost, the certainly characteristics such as encapsulation.With filter, amplifier, antenna etc.
For circuit after medium is integrated and realized on suspended substrate stripline platform, the microwave circuit system built jointly has higher want to integrated level
It asks, the structure of the multi-layer PCB board of suspended substrate stripline is integrated between novel medium, the double-deck or even cascade transmission line structure of more layers can
It is easily realized in the platform that novel medium integrates suspended substrate stripline, to reach higher space utilization rate.
In the prior art, the transition circuit between suspended substrate stripline is integrated for high performance two-layered medium and lacks abundant research,
Hinder the further development of suspension line technology.
Summary of the invention
The technical problem to be solved by the present invention is in the prior art, for high performance two-layered medium integrate suspended substrate stripline it
Between transition circuit lack abundant research, hinder suspension line technology it is further develop, and it is an object of the present invention to provide a kind of KA wave band
Multilayer dielectricity integrate suspended substrate stripline transition and longitudinal function separation structure, solve the above problems.
The present invention is achieved through the following technical solutions:
A kind of multilayer dielectricity of KA wave band integrates the transition of suspended substrate stripline, including two circuit board A, two or more circuit board
B and three and the above circuit board group；The circuit board group is set gradually from top to bottom by multilayer circuit board to be constituted；The circuit board
B and circuit board group are arranged alternately composition suspension cable architecture from top to bottom, and the upper and lower end face for suspending cable architecture is respectively provided with and circuit
Plate B parallel circuit board A；Hollow out, and the hollow out structure of circuit board group and circuit board B are set on the circuit board group and circuit board B
At waveguide cavity；Metal routing structure is set on the circuit board B, and the metal routing structure includes excitation patch, and motivates patch
Piece is located in waveguide cavity, and the metal column perpendicular to circuit board B is evenly equipped in the inner wall of the waveguide cavity.
In the prior art, the transition circuit between suspended substrate stripline is integrated for high performance two-layered medium and lacks abundant research,
Hinder the further development of suspension line technology.The present invention is in application, the metal plate of two circuit board A and uniformly distributed metal column are made
For the metallic walls of waveguide device, and the hollow out in circuit board group and circuit board B constitutes the waveguide cavity of waveguide device, motivates simultaneously
Patch is arranged in waveguide cavity so that excitation patch in can by having motivated waveguide mode to be propagated in waveguide device,
To realize the signal transmission between multiple excitation patches, and then realize that different layers medium integrates the signal interconnection of suspended substrate stripline,
In the case where the integrated suspended substrate stripline of holding medium existing advantage, reach higher integrated level, and be more convenient between each design
Interconnection be reduced as far as existing unnecessary ghost effect between each circuit simultaneously.The present invention utilizes the integrated suspension of medium
The multiple-plate architectural characteristic of line, is slotted by medium, and the mode of the evenly distributed metal column of surrounding forms rectangular waveguide, metal column and
The metal of dielectric-slab printed on both sides collectively acts as the metallic walls of rectangular waveguide, can easily realize the waveguide junction of various sizes
Structure.
Further, the metal routing structure setting is on the metal plate of circuit board B, and metal routing structure further includes
Feeder line and metal patch；The metal patch is provided with the rectangular through-hole with waveguide cavity cross-sections match, and patch is motivated to be set to
In rectangular through-hole；The feeder line is connected to excitation patch.
The present invention in order to which different layers medium to be integrated to the signal of suspended substrate stripline in application, interconnect, the metal on circuit board B is walked
Cable architecture carries out microwave signal communication by feeder line and excitation patch, facilitates the signal transmitting between different layers.
Further, the excitation patch is rectangle, and motivating length of the patch along feeder line direction is 0.7~0.9mm, is swashed
It is 1~1.4mm that patch, which is encouraged, perpendicular to the length in feeder line direction.
The present invention sets wide 0.7~0.9mm for excitation patch in application, in order to make the application be more suitable for Ka wave band,
The rectangular configuration of long 1~1.4mm, and the broadside of patch will be motivated to connect feeder line.
Further, length of the rectangular through-hole along feeder line direction is 2.9~3.2mm, and rectangular through-hole is perpendicular to feeder line
The length in direction is 6~7mm.
The present invention sets wide for rectangular through-hole in application, in order to more preferably match metal routing structure with overall structure
2.9~3.2mm, the rectangle of long 6~7mm.
Further, the quantity of the circuit board B is two, and the quantity of the circuit board group is three；Described two electricity
The excitation patch being arranged on a circuit board B in the plate B of road is input patch, and the excitation patch being arranged on another circuit board B is
Export patch.
The present invention is in application, what the application transition structure was realized by the transition with line-rectangular waveguide-with line.Band line arrives
The transition of rectangular waveguide is the excitation patch by stretching out with line, has motivated waveguide mode to be passed in the waveguide in the waveguide
Broadcast, and rectangular waveguide to the transition with line then on the contrary, be waveguide mode in waveguide wave by another excitation patch be transitioned into
The mode propagation of transmission line.In actual design, the wave of input patch excitation can be propagated to upper and lower both direction, more in order to make
Energy received and propagated by patch #2, the metal plate of circuit board A be equivalent to input patch extended portion setting one or four/
One wavelength reflection face upwardly propagates the wave propagated downwards by quarter-wave reflection, to reduce microwave propagation
Energy loss in journey.
Further, the excitation patch includes upper patch and lower patch；The upper patch is located at the upper surface circuit board B
On metal plate, the lower patch is located on the metal plate of the lower surface circuit board B, and upper patch and lower patch pass through plated-through hole
Connection.
Further, the circuit board A uses the two sided pcb of 0.6mm thickness F r4 medium；The circuit board B
Using the two sided pcb of 0.254mm thickness Rogers5880 medium；The circuit board group is by multiple 0.6mm thickness F r4
The two sided pcb of medium is constituted.
The present invention is in application, circuit board A, circuit board B and circuit board group can effectively be matched with Ka by above-mentioned setting
Wave band, so that the application is in optimal working condition.
Further, the circuit board group between adjacent circuit board A and circuit board B is by three layers of 0.6mm thickness F r4 medium
Two sided pcb is constituted；Circuit board group between two adjacent circuit board B is double by four layers of 0.6mm thickness F r4 medium
Face printed circuit board is constituted.
The present invention is in application, need to limit the size of waveguide cavity so that propagation of the microwave in waveguide is in
Optimum state, so the application has done above-mentioned structure snd size design.
A kind of multilayer dielectricity of KA wave band integrates longitudinal function separation structure of suspended substrate stripline, and the quantity of the circuit board B is three,
The quantity of the circuit board group is four；The excitation patch being arranged on centrally located circuit board B in three circuit board B
Piece is input patch, and the excitation patch being arranged on another two circuit board B is output patch.
Further, each output patch passes through feeder line and is connected to two output ports.
The present invention is in application, the application is equivalent to a kind of longitudinal power splitter, and input signal is inputted from one layer of suspended substrate stripline, so
Function is assigned to upper layer and lower layer suspended substrate stripline and realizes the longitudinal power splitter for being integrated suspended substrate stripline platform based on medium afterwards, and the design is integrated in medium
Suspension line platform has very big application value, is an extension for integrating suspended substrate stripline transition to two-layered medium, can adapt to more
Topological structure, so that the design for integrating suspended substrate stripline platform based on medium is had a possibility that bigger in terms of cabling.
Compared with prior art, the present invention having the following advantages and benefits:
1, a kind of multilayer dielectricity of KA wave band of the present invention integrates the transition of suspended substrate stripline, integrates suspended substrate stripline multi-layer board using medium
Architectural characteristic, slotted by medium, the mode of the evenly distributed metal column of surrounding forms rectangular waveguide, and metal column and dielectric-slab are double
The metal of face printing collectively acts as the metallic walls of rectangular waveguide, can easily realize the waveguiding structure of various sizes.
2, a kind of multilayer dielectricity of KA wave band of the present invention integrates the vertical power splitter of suspended substrate stripline, and it is flat to integrate suspended substrate stripline in medium
Platform has very big application value, is an extension for integrating suspended substrate stripline transition to two-layered medium, can adapt to more topology knots
Structure makes the design for integrating suspended substrate stripline platform based on medium have a possibility that bigger in terms of cabling.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is that traditional sucrose of the embodiment of the present invention integrates suspended substrate stripline structural schematic diagram；
Fig. 2 is bilayer of embodiment of the present invention suspended substrate stripline transition schematic diagram；
Fig. 3 is longitudinal direction of embodiment of the present invention power splitter schematic diagram；
Fig. 4 is metal routing of embodiment of the present invention structural schematic diagram；
Fig. 5 is feed network structures of embodiment of the present invention schematic diagram；
Fig. 6 is excessive structural of embodiment of the present invention S parameter schematic diagram；
Fig. 7 is longitudinal direction of embodiment of the present invention power splitter S parameter schematic diagram；
Fig. 8 is feeding network of embodiment of the present invention S parameter schematic diagram.
Label and corresponding parts title in attached drawing:
1- circuit board A, 2- circuit board B, 3- circuit board group, 4- motivate patch, 5- feeder line, 6- metal patch.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
A kind of multilayer dielectricity of KA wave band of the present invention integrates transition and the longitudinal direction function separation structure of suspended substrate stripline, including two circuits
Plate A1, two or more circuit board B2 and three and the above circuit board group 3；The circuit board group 3 by multilayer circuit board from upper and
Under set gradually composition；The circuit board B2 and circuit board group 3 are arranged alternately composition suspension cable architecture, and suspended substrate stripline from top to bottom
The upper and lower end face of structure is respectively provided with the circuit board A1 parallel with circuit board B2；It is arranged on the circuit board group 3 and circuit board B2 and engraves
Sky, and circuit board group 3 and the hollow out of circuit board B2 constitute waveguide cavity；Metal routing structure is set on the circuit board B2, it is described
Metal routing structure includes excitation patch 4, and patch 4 is motivated to be located in waveguide cavity；It is evenly equipped in the inner wall of the waveguide cavity vertical
Directly in the metal column of circuit board B2.
When the present embodiment is implemented, metal of the metal plate and uniformly distributed metal column of two circuit board A1 as waveguide device
Wall, and the hollow out in circuit board group 3 and circuit board B2 constitutes the waveguide cavity of waveguide device, while patch 4 being motivated to be arranged in wave
In guide cavity, so that can be by having motivated waveguide mode to be propagated in waveguide device, to realize more in excitation patch 4
Signal transmission between a excitation patch, and then realize that different layers medium integrates the signal interconnection of suspended substrate stripline, keeping media set
In the case where at the existing advantage of suspended substrate stripline, reach higher integrated level, and in the interconnection being more convenient between each design while to the greatest extent
Possibly reduce existing unnecessary ghost effect between each circuit.The present invention integrates the multiple-plate knot of suspended substrate stripline using medium
Structure characteristic, is slotted by medium, and the mode of the evenly distributed metal column of surrounding forms rectangular waveguide, metal column and dielectric-slab perfecting
The metal of brush collectively acts as the metallic walls of rectangular waveguide, can easily realize the waveguiding structure of various sizes.
Embodiment 2
The present embodiment on the basis of embodiment 1, the metal routing structure setting on the metal plate of circuit board B2, and
Metal routing structure further includes feeder line 5 and metal patch 6；The metal patch 6 is provided with the rectangle with waveguide cavity cross-sections match
Through-hole, and patch 4 is motivated to be set in rectangular through-hole；The feeder line 5 is connected to excitation patch 4.
When the present embodiment is implemented, interconnected in order to which different layers medium to be integrated to the signal of suspended substrate stripline, the gold on circuit board B2
Belong to Wiring structure and microwave signal communication is carried out by feeder line 5 and excitation patch 4, facilitates the signal transmitting between different layers.
Embodiment 3
For the present embodiment on the basis of embodiment 2, the excitation patch 4 is rectangle, and motivates patch 4 along 5 direction of feeder line
Length be 0.7~0.9mm, excitation patch 4 perpendicular to 5 direction of feeder line length be 1~1.4mm.
The present embodiment implement when, in order to make the application be more suitable for Ka wave band, will excitation patch be set as it is wide by 0.7~
0.9mm, the rectangular configuration of long 1~1.4mm, and the broadside of patch will be motivated to connect feeder line.
Embodiment 4
For the present embodiment on the basis of embodiment 2, length of the rectangular through-hole along 5 direction of feeder line is 2.9~3.2mm,
Rectangular through-hole is 6~7mm perpendicular to the length in 5 direction of feeder line.
When the present embodiment is implemented, in order to more preferably match metal routing structure with overall structure, set rectangular through-hole to
Wide 2.9~3.2mm, the rectangle of long 6~7mm.
Embodiment 5
For the present embodiment on the basis of embodiment 2, the quantity of the circuit board B2 is two, the number of the circuit board group 3
Amount is three；The excitation patch 4 being arranged on a circuit board B2 in described two circuit board B2 is input patch, another circuit
The excitation patch 4 being arranged on plate B2 is output patch.
When the present embodiment is implemented, the application transition structure is realized by the transition with line-rectangular waveguide-with line.Band line
Transition to rectangular waveguide is the excitation patch by stretching out with line, has motivated waveguide mode to be passed in the waveguide in the waveguide
Broadcast, and rectangular waveguide to the transition with line then on the contrary, be waveguide mode in waveguide wave by another excitation patch be transitioned into
The mode propagation of transmission line.In actual design, the wave of input patch excitation can be propagated to upper and lower both direction, more in order to make
Energy received and propagated by patch #2, the metal plate of circuit board A be equivalent to input patch extended portion setting one or four/
One wavelength reflection face upwardly propagates the wave propagated downwards by quarter-wave reflection, to reduce microwave propagation
Energy loss in journey.
Embodiment 6
For the present embodiment on the basis of embodiment 2, the quantity of the circuit board B2 is three, the number of the circuit board group 3
Amount is four；The excitation patch 4 being arranged on centrally located circuit board B2 in three circuit board B2 is input patch,
The excitation patch 4 being arranged on another two circuit board B2 is output patch.Each output patch passes through feeder line 5 and is connected to two
A output port；
When the present embodiment is implemented, the application is equivalent to a kind of longitudinal power splitter, and input signal is inputted from one layer of suspended substrate stripline,
Then function is assigned to upper layer and lower layer suspended substrate stripline and realizes the longitudinal power splitter for being integrated suspended substrate stripline platform based on medium, and the design is in media set
There is very big application value at suspension line platform, is an extension for integrating suspended substrate stripline transition to two-layered medium, can adapt to more
More topological structures makes the design for integrating suspended substrate stripline platform based on medium have a possibility that bigger in terms of cabling.
Embodiment 7
On the basis of embodiment 1, the circuit board A1 uses the double-sided printing of 0.6mm thickness F r4 medium to the present embodiment
Circuit board；The circuit board B2 uses the two sided pcb of 0.254mm thickness Rogers5880 medium；The circuit board group
3 are made of the two sided pcb of multiple 0.6mm thickness F r4 media.
When the present embodiment is implemented, circuit board A, circuit board B and circuit board group can be effectively matched with by above-mentioned setting
Ka wave band, so that the application is in optimal working condition.
Embodiment 8
For the present embodiment on the basis of embodiment 7, the circuit board group 3 between adjacent circuit board A1 and circuit board B2 is by three
The two sided pcb of layer 0.6mm thickness F r4 medium is constituted；Circuit board group 3 between two adjacent circuit board B2 is by four
The two sided pcb of layer 0.6mm thickness F r4 medium is constituted.
When the present embodiment is implemented, need to limit the size of waveguide cavity so that microwave is at the propagation in waveguide
In optimum state, so the application has done above-mentioned structure snd size design.
Embodiment 9
The present embodiment on the basis of Examples 1 to 8, as shown in Figure 1, be successively from top to bottom FR4, FR4,
Rogers5880,FR4,FR4.Circuit is built on the metal up and down of third layer medium, is dug among the second layer and the 4th layer of medium
Slot and the metal column of surrounding constitute cavity body structure, and five layers of medium are connected by metal throuth hole.With low-loss, encapsulate certainly, integration
The advantages such as integrated and at low cost.It is then upper layer suspended substrate stripline and lower layer's suspended substrate stripline layer that the two-layered medium that the present invention mentions, which integrates suspended substrate stripline,
It is folded, share the isolation that same layer Sub5 realizes upper and lower level suspended substrate stripline cavity.And based on the integrated suspension of structure design two-layered medium
The transition circuit of line realizes that different layers medium integrates the signal interconnection of suspended substrate stripline, medium is being kept to integrate the existing advantage of suspended substrate stripline
In the case where, reach higher integrated level.
Present embodiments provide work Ka wave band two-layered medium integrate suspended substrate stripline transition structure mentality of designing and
Process.Heretofore described medium integrates suspended substrate stripline structure as shown in Figure 1, five layers of double-sided printing electricity by being overlapped from top to down
The intermediate medium material of road plate, first layer to layer 5 circuit board can successively use Fr4, Fr4, Rogers5880, Fr4, Fr4,
Thickness is followed successively by 0.6mm, 0.6mm, 0.254mm, 0.6mm, 0.6mm.Hollow out among second layer circuit board and four-layer circuit board,
To guarantee that third layer circuit board forms air cavity body structure between the first layer circuit board and layer 5 circuit board respectively.Second
Layer metal layer and the 9th layer of signal ground of the metal layer as suspended substrate stripline circuit.Third layer circuit board upper and lower surfaces metal layer i.e.
Circuit is set on five layers of metal layer and layer 6 metal layer.Due to this design feature, suspended substrate stripline design is integrated based on medium
Circuit is interconnected by suspended substrate stripline to the transition structure with line when carrying out the system integration, while keeping a cavity only each other
It is vertical, unique honeycomb is formed, a large amount of debugging efforts after the system integration are effectively reduced.And it is such due to honeycomb
Advantage, we select the transition structure that two-layered medium is integrated to suspended substrate stripline to complete in stripline portions, to be more convenient each design
Between interconnection be reduced as far as existing unnecessary ghost effect between each circuit simultaneously.
Embodiment 10
As shown in Fig. 2, the present embodiment, on the basis of embodiment 9, two-layered medium of the present invention integrates the mistake of suspended substrate stripline
Crossing structure is realized by the transition with line-rectangular waveguide-with line.Transition with line to rectangular waveguide is stretched out by band line
A rectangular patch #1, be located at waveguide bottom, motivated waveguide mode to be propagated in the waveguide in the waveguide, and rectangular waveguide
To the transition with line then on the contrary, being that the wave of waveguide mode in waveguide is transitioned by the symmetrical patch #2 of another size same position
The mode propagation of transmission line.In actual design, the wave of patch #1 excitation can be propagated to upper and lower both direction, more in order to make
Energy is received and is propagated by patch #2, and a quarter-wave reflecting surface is arranged in patch #1 extended portion in waveguide, makes to pass downwards
The wave broadcast is upwardly propagated by quarter-wave reflection.Similarly quarter-wave reflection is equally arranged in the top of patch #2
Face.The mode that excitation is selected in the present invention is TE10Mould.The multiple-plate architectural characteristic of suspended substrate stripline is integrated using medium in the design,
It is slotted by medium, the mode of the evenly distributed metal column of surrounding forms rectangular waveguide, the gold of metal column and dielectric-slab printed on both sides
Belong to the metallic walls for collectively acting as rectangular waveguide, can easily realize the waveguiding structure of various sizes.
In the present embodiment, two-layered medium integrates the transition circuit work of suspended substrate stripline in Ka wave band, as shown in figure 4, excitation patch
Length of the piece 4 along 5 direction of feeder line is preferably 0.8mm, and excitation patch 4 is preferably 1.2mm perpendicular to the length in 5 direction of feeder line；Institute
Stating length of the rectangular through-hole along 5 direction of feeder line is preferably 3.062mm, and rectangular through-hole is preferably perpendicular to the length in 5 direction of feeder line
For 6.65mm.
Fig. 6 is the scattering parameter curve graph that two-layered medium provided by the invention integrates that the emulation of suspended substrate stripline transition circuit obtains,
As can be seen from the figure within the scope of 26.5~40GHz, the return loss of the transition structure is better than -19dB, and insertion loss is lower than
0.18dB。
From the above results, two-layered medium described in the present embodiment integrates suspended substrate stripline and can realize in Ka wave band with very little
Signal is integrated suspended substrate stripline from one layer of medium and is transitioned into the integrated suspended substrate stripline of another layer of medium by loss, to be situated between based on double-deck or even multilayer
The design that matter integrates suspended substrate stripline provides good basis.
Embodiment 11
As shown in figure 3, the present embodiment is on the basis of embodiment 10, it is integrated based on two-layered medium described in embodiment 10
Mentioned in suspended substrate stripline transition with line-waveguide transition and structure of the waveguide-with line transition bonding, signal can be made to suspend from one layer
Line is longitudinally transferred to another layer of suspended substrate stripline.It is then based on this structure, present embodiments provides a kind of longitudinal power splitter, is inputted
Signal is inputted from one layer of suspended substrate stripline, and then function is assigned to upper layer and lower layer suspended substrate stripline and realizes the longitudinal direction for being integrated suspended substrate stripline platform based on medium
Power splitter, as shown in Figure 4.In Fig. 4, metal routing structure includes transition structure of a part for test, the structure setting
In input or the two sides of output feeder.The design, which integrates suspended substrate stripline platform in medium, very big application value, is situated between to bilayer
Matter integrates an extension of suspended substrate stripline transition, can adapt to more topological structures, makes to integrate suspended substrate stripline platform based on medium
Design has a possibility that bigger in terms of cabling.The longitudinal direction power splitter and plane power splitter sky has been implemented in combination in the present embodiment
Between one point of four power splitter, provide the transmission network of adaptation to integrate the aerial array of longitudinal arrangement of suspended substrate stripline based on medium
Network.One point of four power splitter provided in the present embodiment is that two output ports of above-mentioned longitudinal power splitter connect two plane function respectively
Divide device, realize that four power splitters are divided in space one, the 2*2 aerial array for a job in 24.25~26.25GHz is fed, size and day
The size fit of linear array.
Fig. 5 is output feeder structure chart, and Fig. 7 is that the vertical direction power splitter based on waveguiding structure passes through electricity in the present embodiment
The scattering parameter curve graph that magnetic simulation software obtains, as can be seen from the figure within the scope of 20~40GHz, S11 is better than -15dB,
Insertion loss is better than 0.5dB, and amplitude imbalance degree is better than 0.7dB.Fig. 8 is that one point of four power splitter provided in the present embodiment passes through
The scattering parameter curve graph that electromagnetic simulation software obtains, as can be seen from the figure within the scope of 20~40GHz, S11 better than-
15dB, insertion loss are better than 0.2dB, and amplitude imbalance degree is better than 0.2dB.
From the above results, the space one of suspended substrate stripline transition structure design is integrated described in the present embodiment based on two-layered medium
Divide four feeding networks that can realize good working performance in required working band, be provided for the aerial array of space arrangement
Good basis.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. the transition that a kind of multilayer dielectricity of KA wave band integrates suspended substrate stripline, which is characterized in that including two circuit board A (1), two
And the above circuit board B (2) and three and the above circuit board group (3)；The circuit board group (3) by multilayer circuit board from top to bottom according to
Secondary setting is constituted；The circuit board B (2) and circuit board group (3) are arranged alternately composition suspension cable architecture, and suspended substrate stripline from top to bottom
The upper and lower end face of structure is respectively provided with the circuit board A (1) parallel with circuit board B (2)；
Hollow out is set on the circuit board group (3) and circuit board B (2), and circuit board group (3) and the hollow out of circuit board B (2) are constituted
Waveguide cavity；Metal routing structure is set on the circuit board B (2), and the metal routing structure includes excitation patch (4), and is swashed
Patch (4) is encouraged to be located in waveguide cavity；The metal column perpendicular to (2) circuit board B is evenly equipped in the inner wall of the waveguide cavity.
2. a kind of multilayer dielectricity of KA wave band according to claim 1 integrates transition and the longitudinal direction function separation structure of suspended substrate stripline,
It is characterized in that, the circuit board A (1) uses the two sided pcb of 0.6mm thickness F r4 medium；The circuit board B (2)
Using the two sided pcb of 0.254mm thickness Rogers5880 medium；The circuit board group (3) is by multiple 0.6mm thickness
The two sided pcb of Fr4 medium is constituted.
3. a kind of multilayer dielectricity of KA wave band according to claim 2 integrates transition and the longitudinal direction function separation structure of suspended substrate stripline,
It is characterized in that, the circuit board group (3) between adjacent circuit board A (1) and circuit board B (2) is situated between by three layers of 0.6mm thickness F r4
The two sided pcb of matter is constituted；Circuit board group (3) between two adjacent circuit board B (2) is by four layers of 0.6mm thickness
The two sided pcb of Fr4 medium is constituted.
4. the transition that a kind of multilayer dielectricity of KA wave band according to claim 1 integrates suspended substrate stripline, which is characterized in that described
Motivating patch (4) includes upper patch and lower patch；The upper patch is located on the metal plate of circuit board B (2) upper surface, under described
Patch is located on the metal plate of circuit board B (2) lower surface, and upper patch is connected with lower patch by plated-through hole.
5. the transition that a kind of multilayer dielectricity of KA wave band according to claim 1 integrates suspended substrate stripline, which is characterized in that described
Metal routing structure setting is on the metal plate of (2) circuit board B, and metal routing structure further includes feeder line (5) and metal patch
(6)；The metal patch (6) is provided with the rectangular through-hole with waveguide cavity cross-sections match, and it is logical to motivate patch (4) to be set to rectangle
In hole；The feeder line (5) is connected to excitation patch (4).
6. the transition that a kind of multilayer dielectricity of KA wave band according to claim 5 integrates suspended substrate stripline, which is characterized in that described
Motivating patch (4) is rectangle, and motivating the length of patch (4) along feeder line (5) direction is 0.7~0.9mm, and excitation patch (4) is hung down
Directly the length in feeder line (5) direction is 1~1.4mm.
7. the transition that a kind of multilayer dielectricity of KA wave band according to claim 5 integrates suspended substrate stripline, which is characterized in that described
Rectangular through-hole along feeder line (5) direction length be 2.9~3.2mm, rectangular through-hole perpendicular to feeder line (5) direction length be 6~
7mm。
8. the transition that a kind of multilayer dielectricity of KA wave band according to claim 5 integrates suspended substrate stripline, which is characterized in that described
The quantity of circuit board B (2) is two, and the quantity of the circuit board group (3) is three；An electricity in described two circuit board B (2)
The excitation patch (4) being arranged on road plate B (2) is input patch, and the excitation patch (4) being arranged on another circuit board B (2) is defeated
Patch out.
9. using longitudinal function separation structure of any one of claim 1~7 transition structure, which is characterized in that the circuit board B
(2) quantity is three, and the quantity of the circuit board group (3) is four；It is centrally located in three circuit board B (2)
Circuit board B (2) on the excitation patch (4) that is arranged be input patch, the excitation patch (4) being arranged on another two circuit board B (2)
To export patch.
10. a kind of multilayer dielectricity of KA wave band according to claim 9 integrates longitudinal function separation structure of suspended substrate stripline, feature
It is, each output patch passes through feeder line (5) and is connected to two output ports.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051131A (en) * | 2022-05-06 | 2022-09-13 | 天津大学 | Broadband transition of dielectric integrated suspended parallel strip line to shielded GCPW differential pair |
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|---|---|---|---|---|
| US6603376B1 (en) * | 2000-12-28 | 2003-08-05 | Nortel Networks Limited | Suspended stripline structures to reduce skin effect and dielectric loss to provide low loss transmission of signals with high data rates or high frequencies |
| CN106848519A (en) * | 2017-01-17 | 2017-06-13 | 电子科技大学 | A kind of integrated suspended substrate stripline of medium of artificial complex media filling |
| CN108539349A (en) * | 2018-07-05 | 2018-09-14 | 电子科技大学 | The spiral shape power splitter of suspended substrate stripline is integrated based on medium |
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2018
- 2018-10-18 CN CN201811215480.8A patent/CN109273815A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6603376B1 (en) * | 2000-12-28 | 2003-08-05 | Nortel Networks Limited | Suspended stripline structures to reduce skin effect and dielectric loss to provide low loss transmission of signals with high data rates or high frequencies |
| CN106848519A (en) * | 2017-01-17 | 2017-06-13 | 电子科技大学 | A kind of integrated suspended substrate stripline of medium of artificial complex media filling |
| CN108539349A (en) * | 2018-07-05 | 2018-09-14 | 电子科技大学 | The spiral shape power splitter of suspended substrate stripline is integrated based on medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051131A (en) * | 2022-05-06 | 2022-09-13 | 天津大学 | Broadband transition of dielectric integrated suspended parallel strip line to shielded GCPW differential pair |
| CN115051131B (en) * | 2022-05-06 | 2024-01-26 | 天津大学 | Broadband transition of dielectric integrated suspension parallel strip line to shielded GCPW differential pair |
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