CN108417954A - A kind of arbitrary road power divider based on waveguide transmission structure - Google Patents
A kind of arbitrary road power divider based on waveguide transmission structure Download PDFInfo
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- CN108417954A CN108417954A CN201810442534.8A CN201810442534A CN108417954A CN 108417954 A CN108417954 A CN 108417954A CN 201810442534 A CN201810442534 A CN 201810442534A CN 108417954 A CN108417954 A CN 108417954A
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- 230000005684 electric field Effects 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 6
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- 239000000523 sample Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
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Classifications
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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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Abstract
The present invention relates to a kind of arbitrary road power divider based on waveguide transmission structure, including the similar branch's section of N 1 (N >=2 are the way of distribution) a structure；Branch section is made of one section of primary path waveguide and the branch-waveguide being attached thereto；The primary path head and the tail of 1 branch's section of N are sequentially connected in series to form a transmission structure；The waveguide port of each branch's section is exported as distribution；The primary path input of 1st branch's section is the total input port of distributor, the distribution output on the main road output roads N the most of 1 branch's section of N；Each branch's section branch waveguide includes that one section of impedance converts waveguide, and the impedance one section of waveguide of transformation is connected to primary path waveguide, and the other end is connect with branch output waveguide.The present invention converts the impedance of waveguide by adjusting the impedance and length realizes specific power assignment value；Include the metal tuning volume probeed into primary path waveguide cavity on the primary path of each branch's section, ensure the matching of primary path input port, be easy to implement arbitrary road, arbitrary proportion power divider.
Description
Technical field
The invention belongs to Pulse width technical field, a kind of particularly arbitrary road work(based on waveguide transmission structure
Rate distributor.
Background technology
Power divider is widely used in as a kind of important function element in various microwave electromagnetic characteristics.Different frequencies
Rate, different capacity grade distributor use different principle and realization method.Generally with waveguide in High Power Microwave System
As transmission line, corresponding power divider is also based on waveguiding structure realization.Commonly the waveguide method of salary distribution includes：T-type
Structure (E-T, H-T and E-H-T), coupled structure and radial waveguide structure.
Usually, the design of distributor should consider the consistent of power distribution amplitude, also consider that phase is consistent, therefore real
Often there is certain symmetry in existing structure.Such as shown in two-way power divider such as Fig. 1 (a) of H-T forms, from waveguide
Broadside is overlooked downwards, it includes the main waveguide in longitudinal direction of T-shaped connection and lateral branch-waveguide, and the two is with narrow side tandem.Wherein 1
It is two-way output port for input port, 2 and 3, dispensing arrangement is symmetrical.Using two distributor cascaded series of this form
Conjunction can obtain 2 as shown in Fig. 1 (b)N(N >=1 is integer) distributor, input power is if it is Pin, then output power Po
=Pin/2N.The space width W of the distributor includes the width that N number of waveguide broadside width adds N number of 90 ° of waveguide bends, when being operated in
When low-frequency range, waveguide dimensions are big, and the width W of distributor is also more considerable.By taking 915MHz microwave energy commercial Application frequency ranges as an example, often
BJ9 duct widths about 248mm, typical 90 ° of waveguide bend width are not less than 100mm, (four distributors) total width when N=2
For degree close to 700mm, volume is big, of high cost, brings inconvenience to Practical Project use.And due to frame mode and delivery outlet direction
Limitation, it is limited using the optimizable space of the cascade method of two distributor of T-type.
Coupled structure with T-type structure there is similar problem, multichannel to need to use cascade mode when distributing, can equally account for
With larger space.
Radial waveguide distributor adopt as shown in Fig. 2, include an input port 4, cylindrical cavity 5 and cylindrical cavity justify
The equally distributed output waveguide of circumferential direction 6.The distributor is a kind of circumference symmetrical structure, need not theoretically be cascaded, can be primary
Realize the distribution of arbitrary way.But it when for low-frequency range and more distribution way, since output waveguide size is larger, needs to justify
Column cavity 5 is relatively large in diameter, and the control and conversion of cavity modes realize that difficulty is high, therefore achievable distribution way is by certain
Limitation.In addition, since output port is circumferentially distributed, the application scenarios of load port and circle distribution are more closed
It is suitable, and if load input terminal is lineal layout, the switching waveguide bend that a large amount of angle is different is needed, larger sky can be occupied
Between, cost of implementation is high.
Invention content
The purpose of the present invention is overcoming, existing waveguide dispensing arrangement is complicated, volume is big, cost in Pulse width equipment
High problem, it is proposed that a kind of arbitrary road power divider based on waveguide transmission structure is mainly characterized by passing using waveguide
Defeated line gradually connects tributary circuit as primary path, is assigned to portion of energy while microwave energy is propagated along primary path
Tributary circuit, it is convenient to realize arbitrary branch's way, the power distribution of arbitrary power proportions, and small, design processing letter
It is single.
In order to achieve the above objectives, technical scheme is as follows：
A kind of arbitrary road power divider based on waveguide transmission structure, including the similar branch's section of N-1 structure, wherein
N >=2, for the way of distribution；Branch's section is made of one section of primary path waveguide and the branch-waveguide being attached thereto, the primary path waveguide
A port as input, then another port is exported as main road, and the port of branch-waveguide is as distribution output；The N-
The primary path head and the tail of 1 branch's section are sequentially connected in series to form a transmission structure, and the branch-waveguide of each branch's section is defeated as distributing
Go out；The input of 1st branch section is the total input port of distributor, point on the main road output roads N the most of the N-1 branch's section
With output；
The branch waveguide of branch's section includes converting waveguide, the output waveguide with one section of output waveguide and one section of impedance
One end as distribution delivery outlet, one end of the other end and the impedance transformation waveguide is connect, impedance transformation waveguide it is another
Primary path tandem, the connection of waveguide inner space are finally saved with the branch in end.The impedance transformation waveguide and the output waveguide
With different sectional dimensions；
The primary path waveguide of branch's section, including one or more metallic objects being mounted in waveguide, are used for primary path
Tuning；
If the total input power of the power divider is Pin, n-th road (1≤n≤N-1) output power be It answers
MeetSectional dimension and length that the branch saves the impedance transformation waveguide of the branch waveguide are adjusted,
The input port that the branch saves is set to meet to the insertion loss of the distribution delivery outlet
The positions and dimensions for adjusting the primary path tuning metallic object simultaneously, the input port matching for making the branch save.
Preferably, branch's section uses T-type structure, the primary path waveguide to be located at laterally, and the branch waveguide is vertical
To the axis of the two is mutually perpendicular to.
Preferably, the primary path waveguide of branch's section and branch waveguide are all made of rectangular waveguide, and transmission mode is selected
TE10 moulds.
Preferably, the primary path waveguide of branch's section and branch waveguide are all made of rectangular waveguide, and transmission mode is selected
TE10 moulds, branch waveguide are connected on the broadside of primary path waveguide, and the direction of an electric field of branch waveguide is perpendicular to primary path waveguide
Axis direction.
Preferably, the primary path waveguide of branch's section and branch waveguide are all made of rectangular waveguide, and transmission mode is selected
TE10 moulds, branch waveguide are connected in the narrow side of primary path waveguide, and the direction of an electric field of branch waveguide is parallel to primary path waveguide
Direction of an electric field.
Preferably, the primary path waveguide of branch's section and branch waveguide are all made of rectangular waveguide, and transmission mode is selected
TE10 moulds, branch waveguide are connected on the broadside of primary path waveguide, and the direction of an electric field of branch waveguide is parallel to primary path waveguide
Axis direction.
Preferably, the primary path waveguide of branch's section and branch waveguide are all made of rectangular waveguide, and transmission mode is selected
The impedance of TE10 moulds, branch's section branch converts waveguide, and height is different from the output waveguide of the branch, according to the branch
Section is input to the insertion loss that distribution exports to adjust.
Preferably, the metallic object for primary path tuning can be that one end connect with the primary path wave guide wall, is another
One end probes into the cylinder inside primary path waveguide；Can also be surface perpendicular to the primary path waveguide axis, from primary path
Wave guide wall stretches into the diaphragm inside waveguide, and the diaphragm shelters from the section of part primary path waveguide.
Preferably, n-th branch section, the input port and N- of n-th branch section are cascaded again after the N-1 branch saves
The main road output port connection of 1 branch's section, which is characterized in that the main road output port short circuit of n-th branch section, n-th point
The distribution output port on the branch output roads N the most of detail.
Due to the application of the above technical scheme, the present invention has following advantages compared with prior art：
A kind of arbitrary road power divider based on waveguide transmission structure of the present invention, using the similar branch of multiple structures
Its primary path head and the tail are sequentially connected in series, simple in structure, volume compact by section, are easy to extension and are realized arbitrary way, arbitrary proportion
Power distribution.
In addition, saving the characteristic impedance that branch impedance converts waveguide by adjusting each branch, can conveniently realize required
The arbitrary power sharing ratio wanted；The defeated of each branch's section may be implemented in the tuning structure that primary path is saved by adjusting each branch
Enter matching, each branch's section independent can be debugged, manufacture easy to produce.
The present invention further devises three kinds of branch's section structures based on rectangular waveguide TE10 moulds, is not increasing adaptation waveguide
In the case of realize three kinds distribution output interface directions, can easily and flexibly adapt to different application demands.
Description of the drawings
Fig. 1 (a) is to have H-T power distribution schematic diagrames；
Fig. 1 (b) is to have N grades of H-T to cascade schematic diagram；
Fig. 2 is to have radial waveguide power distribution schematic diagram；
Fig. 3 is the principle schematic of the embodiment of the present invention；
Fig. 4 is branch's section structure schematic diagram of the embodiment of the present invention 1；
Fig. 5 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 6 (a) is the insertion loss characteristic of the embodiment of the present invention 1；
Fig. 6 (b) is the reflection loss characteristic of the embodiment of the present invention 1；
Fig. 7 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 8 is branch's section structure schematic diagram of the embodiment of the present invention 3；
Fig. 9 is branch's section structure schematic diagram of the embodiment of the present invention 4；
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and embodiments.
Arbitrary road power divider proposed by the present invention based on waveguide transmission structure, principle is as shown in figure 3, include N-1
The similar branch's section of a structure, wherein N >=2, are integer, represent the way of distribution；Branch section by one section of primary path waveguide 1 and with
The branch-waveguide 2 of connection form, as input, then it is main road that another port, which makees 12, for a port 11 of the primary path waveguide
The port 21 of output, branch-waveguide is exported as distribution；The primary path head and the tail of the N-1 branch section are sequentially connected in series to form one
The branch-waveguide of transmission structure, each branch's section is exported as distribution；The input 3 of 1st branch section is the total input of distributor
Port, the distribution output on the roads N the most of main road output 4 of the N-1 branch's section.
Embodiment 1 is saved using branch as shown in Figure 4, including primary path waveguide 41 and branch waveguide 42；The primary path
Waveguide 41 and the branch waveguide 42 are all made of rectangular waveguide；The branch waveguide 42 is vertically mounted on the width of primary path waveguide 41
Bian Shang, the broadside plane of the branch waveguide 42 and the side narrow side of main road waveguide 41 are coplanar, the electric field side of such branch waveguide 42
To 421 perpendicular to main waveguide 42 axis direction.
The a port 411 of the primary path waveguide 41 of the present embodiment is used as input port, another port 412 defeated as main road
Outlet；Metal cylinder 413 is installed on the broadside center line of primary path waveguide 41, the metal cylinder one end and primary path
The broadside short circuit of waveguide 41, the other end stretch into waveguide cavity, complete the tunning effect of primary path.
The branch waveguide 42 of the present embodiment includes impedance transformation waveguide 422 and the branch output waveguide 423 of serial connection；It should
One end of impedance transformation waveguide is connect with the broadside of primary path waveguide 41, and the other end is connect with one end of branch output waveguide 423；
The other end 424 of branch output waveguide 423 is as distribution output port.The height and the branch of the impedance transformation waveguide 422
Road output waveguide 424 is different, to realize different impedance no-load voltage ratios.
The present embodiment realize the power divider of 4 road deciles as shown in figure 5, comprising 4 branches shown in Fig. 4 sections 51,52,
53 and 54；The input port 511 of wherein branch's section 51 is the total input port of distribution；541 short circuit of main road delivery outlet of branch's section 54,
Output of the branch output 542 as the 4th tunnel power distribution；The branch impedance transformation waveguide 543 of branch's section 54 does not have impedance no-load voltage ratio
Requirement, it is simple to process, select impedances transformation waveguides identical with branch's section 53.
Branch's section 51~53 of the present embodiment, primary path is input to insertion loss such as the following table 1 of distribution output：
Table -1
The present embodiment uses BJ9 standard rectangular waveguides, each branch output waveguide to adopt in 915MHz working frequency range, primary path
With 195mm × 72mm sectional dimensions, by Electromagnetic Simulation and debugging, the impedance transformation waveguide length for obtaining four branch's sections is
150mm, highly such as table 2.The tuning body diameter of each branch's section primary path is 30mm, and height is listed in Table 2 below simultaneously.In addition,
The length of main road output port can be adjusted according to the spacing of distribution output port, not interfere with distributor characteristic.
Table -2
Shown in the present embodiment measured result such as Fig. 6 (a) and Fig. 6 (b), within the scope of 915MHz ± 10MHz, the distribution of 4 tunnels is defeated
For the amplitude balance gone out within ± 0.35dB, the reflection loss of input port is less than -24dB (representative value is less than -28dB), full
The needs of sufficient Pulse width.
Such as Fig. 7 of the embodiment of the present invention 2, including 6 structures similar branch section 71~76, the frame mode of branch section with
Embodiment 1 is identical, the difference is that the axis of primary path rectangular waveguide is the circle that radius is R.The primary path of branch's section 71 is defeated
Enter 711 for the total input port of distributor；The main road output 761 of branch's section 76 is short-circuited.The primary path axis of branch's section 71~75
The long subtended angle of bank is 60 °；The primary path Axis arc length subtended angle of branch's section 76 is less than 60 °, and distribution input port is given with slot milling
711, required space size depends on 711 external connection mode of distributor input port, and the connection type does not influence this implementation
The principle and performance indicator of example, not as the feature of the present embodiment.By adjust each branch impedance convert waveguide impedance and
Primary path tunes the size of cylinder, and the present embodiment realizes 6 road constant power distribution.The radius R of primary path axis is needed by concrete application
Decision is asked, also not as the technical characteristic of the present embodiment.
The embodiment of the present invention 3 as shown in figure 8, with Examples 1 and 2 the difference is that, the branch 82 of branch's section with it is main
The connection type on road 81 is different.The axis of branch 82 is perpendicular to the narrow side 811 of primary path 81, and the direction of an electric field of branch 82
821 is parallel with primary path direction of an electric field 812.
The embodiment of the present invention 4 as shown in figure 9, with Examples 1 and 2 the difference is that, the branch 92 of branch's section with it is main
The connection type on road 91 is different.The axis of branch 92 is perpendicular to the broadside 911 of primary path 91, and the direction of an electric field of branch 92
921 with the axis 912 of primary path.
The specific application example that the above is only the present invention, is not limited in any way protection scope of the present invention.All uses
Equivalent transformation or equivalent replacement and the technical solution formed, all fall within rights protection scope of the present invention.
Claims (9)
1. a kind of arbitrary road power divider based on waveguide transmission structure, including the similar branch's section of N-1 structure, wherein N
>=2, for the way of distribution；Branch's section is made of one section of primary path waveguide and the branch-waveguide being attached thereto, the primary path
The a port of waveguide is exported as input, then another port as main road, and the port of branch-waveguide is exported as distribution,
It is characterized in that：The primary path head and the tail of N-1 branch's section are sequentially connected in series to form a transmission structure, the branch-waveguide of each branch's section
It is exported as distribution；The input of 1st branch section is the total input port of distributor, and the main road output of the N-1 branch's section is most
It is exported for the distribution on the roads N；
The branch waveguide of branch section includes converting waveguide with one section of output waveguide and one section of impedance, and the one of the output waveguide
End is as distribution delivery outlet, and one end that the other end converts waveguide with the impedance is connect, which converts the other end of waveguide most
It is whole to save primary path tandem, the connection of waveguide inner space with the branch；The impedance transformation waveguide has with the output waveguide
Different sectional dimensions；
The primary path waveguide of branch's section, including one or more metallic objects being mounted in waveguide, are used for the tune of primary path
It is humorous；
If the total input power of the power divider is Pin, n-th road (1≤n≤N-1) output power be It should meetSectional dimension and length that the branch saves the impedance transformation waveguide of the branch waveguide are adjusted, this is made
The insertion loss of the input port of branch's section to the distribution delivery outlet meets
The positions and dimensions for adjusting the primary path tuning metallic object simultaneously, the input port matching for making the branch save.
2. the arbitrary road power divider based on waveguide transmission structure as described in claim 1, it is characterised in that：The branch
Section uses T-type structure, the primary path waveguide to be located at laterally, and the branch waveguide is longitudinal, and the axis of the two is mutually perpendicular to.
3. the arbitrary road power divider based on waveguide transmission structure as claimed in claim 1 or 2, it is characterised in that：It is described
The primary path waveguide of branch's section and branch waveguide are all made of rectangular waveguide, and transmission mode selects TE10 moulds.
4. the arbitrary road power divider based on waveguide transmission structure as claimed in claim 3, it is characterised in that：Branch waveguide
It is connected on the broadside of primary path waveguide, and the direction of an electric field of branch waveguide is perpendicular to the axis direction of primary path waveguide.
5. the arbitrary road power divider based on waveguide transmission structure as claimed in claim 3, it is characterised in that：Branch waveguide
It is connected in the narrow side of primary path waveguide, and the direction of an electric field of branch waveguide is parallel to the direction of an electric field of primary path waveguide.
6. the arbitrary road power divider based on waveguide transmission structure as claimed in claim 3, it is characterised in that：Branch waveguide
It is connected on the broadside of primary path waveguide, and the direction of an electric field of branch waveguide is parallel to the axis direction of primary path waveguide.
7. the arbitrary road power divider based on waveguide transmission structure as described in claim 3 or 4 or 5 or 6, feature exist
In：The impedance of branch's section branch converts waveguide, and height is different from the output waveguide of the branch, according to branch section
The insertion loss of distribution output is input to adjust.
8. the arbitrary road power divider based on waveguide transmission structure as described in claims 1 or 2 or 3 or 4 or 5 or 6 or 7,
It is characterized in that：It is described for primary path tuning metallic object can be one end connect with the primary path wave guide wall, the other end
Probe into the cylinder inside primary path waveguide；Can also be surface perpendicular to the primary path waveguide axis, from primary path waveguide
Wall stretches into the diaphragm inside waveguide, and the diaphragm shelters from the section of part primary path waveguide.
9. the arbitrary road power distribution based on waveguide transmission structure as described in claims 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8
Device, it is characterised in that：Cascade n-th branch section, the input port and N-1 of n-th branch section again after the N-1 branch saves
The main road output port connection of a branch's section, the main road output port short circuit of n-th branch section, the branch of n-th branch section are defeated
Go out the distribution output port on the roads N the most.
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| CN201810442534.8A CN108417954A (en) | 2018-05-10 | 2018-05-10 | A kind of arbitrary road power divider based on waveguide transmission structure |
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| JP2005167879A (en) * | 2003-12-05 | 2005-06-23 | Mitsubishi Electric Corp | T-branch waveguide, and array antenna |
| JP2008193403A (en) * | 2007-02-05 | 2008-08-21 | Mitsubishi Electric Corp | T branch waveguide and array antenna |
| JP2011182166A (en) * | 2010-03-01 | 2011-09-15 | Mitsubishi Electric Corp | T-branch waveguide |
| JP2011199353A (en) * | 2010-03-17 | 2011-10-06 | Mitsubishi Electric Corp | H plane t branch waveguide |
| CN103779634A (en) * | 2013-11-27 | 2014-05-07 | 中国电子科技集团公司第四十一研究所 | Method for adjusting electromagnetic wave phase in waveguide by use of gradually-changing ridge |
| CN106410347A (en) * | 2016-10-17 | 2017-02-15 | 中国电子科技集团公司第五十四研究所 | Novel 3dB waveguide power divider |
| CN107819181A (en) * | 2017-12-12 | 2018-03-20 | 江苏德是和通信科技有限公司 | A kind of waveguide power synthesizer |
| CN208589519U (en) * | 2018-05-10 | 2019-03-08 | 昆山九华电子设备厂 | A kind of any road power divider based on waveguide transmission structure |
-
2018
- 2018-05-10 CN CN201810442534.8A patent/CN108417954A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0522006A (en) * | 1991-07-16 | 1993-01-29 | Furukawa Electric Co Ltd:The | T-branched waveguide |
| JP2005167879A (en) * | 2003-12-05 | 2005-06-23 | Mitsubishi Electric Corp | T-branch waveguide, and array antenna |
| JP2008193403A (en) * | 2007-02-05 | 2008-08-21 | Mitsubishi Electric Corp | T branch waveguide and array antenna |
| JP2011182166A (en) * | 2010-03-01 | 2011-09-15 | Mitsubishi Electric Corp | T-branch waveguide |
| JP2011199353A (en) * | 2010-03-17 | 2011-10-06 | Mitsubishi Electric Corp | H plane t branch waveguide |
| CN103779634A (en) * | 2013-11-27 | 2014-05-07 | 中国电子科技集团公司第四十一研究所 | Method for adjusting electromagnetic wave phase in waveguide by use of gradually-changing ridge |
| CN106410347A (en) * | 2016-10-17 | 2017-02-15 | 中国电子科技集团公司第五十四研究所 | Novel 3dB waveguide power divider |
| CN107819181A (en) * | 2017-12-12 | 2018-03-20 | 江苏德是和通信科技有限公司 | A kind of waveguide power synthesizer |
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