CN201975491U - High-power waveguide power divider capable of adjusting output power ratio - Google Patents
High-power waveguide power divider capable of adjusting output power ratio Download PDFInfo
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- CN201975491U CN201975491U CN2011200296214U CN201120029621U CN201975491U CN 201975491 U CN201975491 U CN 201975491U CN 2011200296214 U CN2011200296214 U CN 2011200296214U CN 201120029621 U CN201120029621 U CN 201120029621U CN 201975491 U CN201975491 U CN 201975491U
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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Abstract
The utility model discloses a high-power waveguide power divider capable of adjusting output power ratio, which comprises a power input waveguide and a power output waveguide. A power distribution device is arranged opposite to the power input waveguide; the shapes of both sides of the power distribution device correspond to the shape of the intersection of the power input waveguide and the power output waveguide; and a horizontal movement driving device which can enable the power distribution device to extend into one end of the power input waveguide and press against the inner walls on both sides at the lower end of the power input waveguide is arranged on the outer side of a bottom plate of the high-power waveguide power divider. By horizontally moving the driving device to drive the power distribution device to move in the power input waveguide, the length of the narrow edge of a rectangular waveguide in the power input waveguide can be changed, so as to achieve the power division of high-power high-frequency input power and continuous linear adjustment of the output ratio of output power.
Description
Technical field
The present invention relates to the power output regulation technology field of high-power high-frequency power splitter, more particularly, relate to a kind of large power waveguide power splitter that can regulate the power output ratio.
Background technology
The high frequency power splitter is the device that the input power of a power source is divided into as required two-way or multichannel, be widely used in fields such as satellite, radio and television and charged particle accelerator, in continuous variable output irradiation accelerator, in order to regulate the accelerating gradient of accelerator high speed accelerating sections, need to use continuously adjustable high-power high-frequency power splitter.Axially cut apart band by in waveguide, adding in the prior art, designed many mouthfuls of power splitters and made the input power of rectangular waveguide be divided into multichannel, but the power output ratio of this power splitter is fixing uncontrollable.In order to make the power output adjustable ratio of power splitter, by utilizing the method that resonant circuit electric capacity is controlled the resonant circuit state of regulating, solid-state two tunnel variable high frequency power splitters have been designed, though this power splitter can be regulated the power proportions of two ports continuously, but because circuit limitations, be not suitable for working under the high-power condition more than the 1kW high frequency power on the one hand, the circuit complexity is not suitable for charged particle accelerator on the other hand.
Summary of the invention
At existing variable high frequency power divider circuit complexity not to be suitable for charged particle accelerator in the prior art, also be not suitable for the problem of working under the high-power condition, the purpose of this invention is to provide a kind of large power waveguide power splitter that can regulate the power output ratio, can regulate the ratio of power output easily.
For achieving the above object, the present invention adopts following technical scheme:
A kind of large power waveguide power splitter that can regulate the power output ratio, described large power waveguide power splitter adopts the rectangular waveguide of T shape structure, described T shape rectangular waveguide comprises power input waveguide and power output waveguide, described power output waveguide level communicates, and described power input waveguide communicates with the power output waveguide is vertical; The opposite of described power input waveguide is provided with power distribution unit, one end of described power distribution unit stretches into the lower end of power input waveguide, the base plate inboard of the other end of power distribution unit and rectangular waveguide offsets, have notch on the described base plate, the both sides shape of described power distribution unit is corresponding with the shape of power input waveguide and power output waveguide intersection; Described plate outer side is provided with and can makes the drive unit that moves horizontally that power distribution unit and both sides, power input waveguide lower end inwall offset, and the described drive unit that moves horizontally passes the notch of base plate and fixedlys connected with power distribution unit.
Described power distribution unit comprises baffle plate and/or merit sub-unit, and described merit sub-unit comprises that merit divides plate and connecting plate, the structure that described merit divides plate and connecting plate to be isosceles triangle, and the base plate inboard of connecting plate and rectangular waveguide offsets; One end of described baffle plate stretches in the power input waveguide, and the other end divides the intersection of plate to link to each other with merit.
Described baffle plate is vertical with connecting plate.
Described merit divides plate and connecting plate to be isosceles right triangle.
Described connecting plate to merit is divided the vertical range of plate intersection and the equal in length on the narrow limit of rectangular waveguide.
Described large power waveguide power splitter comprises bead and/or chamfering, and both sides, described power input waveguide lower end inwall stretches out and forms step-like bead, and it is corresponding that the height of bead and power distribution unit stretch into the position of an end of power input waveguide; The inclined-plane of described chamfering is connected with power input waveguide lower end and power output waveguide respectively.
The outward extending distance of described bead equates with the thickness that power distribution unit stretches into an end of power input waveguide.
The angle of described chamfering is 45 °.
The chamfering distance of described chamfering is 1/2 of the narrow edge lengths of rectangular waveguide.
The described drive unit that moves horizontally comprises support, litter, screw rod and motor, and described is set up in the floor below of rectangular waveguide and is connected and fixed with it, and described litter level is located in the support, and litter links to each other with motor by screw rod; Described litter is connected and fixed by driving screw and power distribution unit.
Described large power waveguide power splitter also comprises stop, and described stop is located at and is moved horizontally on the drive unit, and stop is corresponding with the position of both sides, power input waveguide lower end inwall.
Described large power waveguide power splitter also comprises directional coupler and low level control unit, one end of described directional coupler is connected with the arrival end of power input waveguide and the port of export of power output waveguide respectively, and the other end all is connected with the low level control unit; Described low level control unit is also respectively with stop and move horizontally drive unit and be connected.
Compared with prior art, adopt a kind of large power waveguide power splitter that can regulate the power output ratio of the present invention, described large power waveguide power splitter adopts the rectangular waveguide of T shape structure, described T shape rectangular waveguide comprises power input waveguide and power output waveguide, described power output waveguide level communicates, and described power input waveguide communicates with the power output waveguide is vertical; The opposite of described power input waveguide is provided with power distribution unit, one end of described power distribution unit stretches into the lower end of power input waveguide, the base plate inboard of the other end of power distribution unit and rectangular waveguide offsets, have notch on the described base plate, the both sides shape of described power distribution unit is corresponding with the shape of power input waveguide and power output waveguide intersection; Described plate outer side is provided with the drive unit that moves horizontally that the end that can make power distribution unit stretch into the power input waveguide and both sides, power input waveguide lower end inwall offset, and the described drive unit that moves horizontally passes the notch of base plate and fixedlys connected with power distribution unit.Because the main mould of work of most of rectangular waveguide is the TE01 mould, its operation wavelength is by the broadside decision of rectangular waveguide, power capacity is by the narrow limit decision of rectangular waveguide, therefore be on the broadside of rectangular waveguide by the base plate of power distribution unit being located at rectangular waveguide, so just can not change the length of broadside, promptly not change the operating frequency of waveguide.Move in the power input waveguide by moving horizontally drive unit drive power distribution unit, can change the length on rectangle Narrow Wall of Waveguide limit in the power input waveguide, the merit that has reached the high-power high-frequency input power divide and the export ratio of power output can be continuously, the effect of linear regulation.As further improvement, not only can realize remote automation control by the low level control unit, accurately regulate the purpose of power output ratio, and operation sequence is simple, safe ready.
Description of drawings
Fig. 1 is a kind of structural representation that can regulate the large power waveguide power splitter of power output ratio of the present invention;
Fig. 2 is that the percentage of reflection power, power output/input power of large power waveguide power splitter among Fig. 1 and power distribution unit move horizontally the schematic diagram that concerns between the distance;
Fig. 3 is an automation FEEDBACK CONTROL schematic diagram of the present invention.
Embodiment
Further specify technical scheme of the present invention below in conjunction with drawings and Examples.
Embodiment
See also a kind of large power waveguide power splitter that can regulate the power output ratio shown in Figure 1, the large power waveguide power splitter adopts the rectangular waveguide of T shape structure, T shape rectangular waveguide comprises power input waveguide 11 and power output waveguide 12, a left side, power output waveguide 12 levels of right both sides communicate, power input waveguide 11 and power output waveguide 12 vertical communicating, the opposite of power input waveguide 11 is that the below of power input waveguide 11 is provided with power distribution unit 13, one end of power distribution unit 13 stretches into the lower end of power input waveguide 11, the other end of power distribution unit 13 and the base plate of rectangular waveguide 14 inboards offset, have notch 15 on the base plate 14, the both sides shape of power distribution unit 13 and power input waveguide 11 and power output waveguide 12 left sides, the shape of intersection, right both sides is corresponding, base plate 14 outsides are provided with an end and the left side, power input waveguide 11 lower end that can make power distribution unit 13 stretch into power input waveguide 11, right both sides inwall offsets moves horizontally drive unit 16, moves horizontally drive unit 16 and passes the notch 15 of base plate 14 and fixedly connected with power distribution unit 13.Power distribution unit 13 comprises baffle plate 131 and/or merit sub-unit 132, merit sub-unit 132 comprises that left and right two merits divide the connecting plate 1322 of plate 1321 and horizontal positioned, the structure that merit divides plate 1321 and connecting plate 1322 to be isosceles right triangle, connecting plate 1322 offsets with base plate 14 inboards of rectangular waveguide.One end of baffle plate 131 stretches in the power input waveguide 11, and the other end divides the intersection of plate 1321 to link to each other with merit, and baffle plate 131 is vertical with connecting plate 1322.Power input waveguide 11 lower end and arranged on left and right sides inwalls stretch out and form the step-like bead 17 of symmetry, the height of bead 17 is corresponding with the position of baffle plate 131 upper ends, when being zero for the power output that guarantees a power take-off mouth, the high frequency power output of another power take-off mouth equates (being that loss is reduced to minimum) substantially with the high frequency input power, bead 17 outward extending distances equate with the thickness of baffle plate 131, make the formed plane of broadside of the side of baffle plate 131 and input waveguide overlapping, so just can reach minimal reflection.The inclined-plane of chamfering 18 is connected with power input waveguide 11 lower ends and power output waveguide 12 respectively, and the waveguide that the inclined-plane of chamfering 18 and merit divide plate 1321 to be parallel to each other to constitute can significantly reduce the transmitting power of high-power high-frequency input power like this.Preferably, selecting the angle of chamfering 18 is 45 °, the chamfering distance is 1/2 of the narrow limit of rectangular waveguide 30 length, simultaneously 1322 to two merits of connecting plate are divided the equal in length on the narrow limit 30 of rectangular waveguide of the vertical range of plate 1321 intersections and power take-off mouth, when the angle that merit divides plate 1321 and connecting plate 1322 to constitute is 45 °, because the moving range of power distribution unit 13 is on a left side, between the bead 17 of right both sides, therefore no matter power distribution unit 13 is in which position, its reflection power all approaches 0 less than 0.4%, and the power output sum of two power take-off mouths equals the input power of power input port substantially, be approximately the continually varying linear relationship between the power output of the shift position of power distribution unit 13 and two ports, concrete condition sees also shown in Figure 2, and wherein the 0 value position of trunnion axis z is exactly the point midway on the narrow limit 30 of rectangular waveguide of power input port; The narrow limit of the rectangular waveguide of power input port 30 length are made as b, and 0.2 on the trunnion axis z is expressed as 20% of the narrow limit 30 length b of rectangular waveguide so, and other are worth by that analogy.Need to prove at this; no matter chamfering 18 is rounded corner or right angle chamfering; whether chamfering is 45 °; corresponding two merits are divided between the plate 1321, merit is divided plate 1321 and connecting plate 1322 between the angle that constitutes be which kind of angle and shape; so long as dividing, chamfering 18 and merit constitute a parallel waveguide between the plate 1321; can significantly reduce reflection power, all fall into protection scope of the present invention.Optional aluminium of large power waveguide power splitter material of the present invention or copper.
See also shown in Figure 1 again, wherein moving horizontally drive unit 16 comprises support 161, is used for steadily mobile litter 162, screw rod 163 and stepping motor 164, support 161 is located at base plate 14 belows of rectangular waveguide and is connected and fixed with it, litter 162 levels are located in the support 161 and with support 161 two ends and are fixedlyed connected, and litter 162 is connected and fixed by the connecting plate 1322 that drives in screw 165 and the power distribution unit 13 by screw rod 163 litter 162 that is connected with stepping motor 164.
Excessively mobile in order to prevent power distribution unit 13; reach the effect of protection large power waveguide power splitter of the present invention; the and arranged on left and right sides that drives screw 165 on the support 161 that moves horizontally drive unit 16 is provided with two limit sensors 19, and limit sensors 19 is corresponding with the position of both sides, power input waveguide 11 lower end inwall.
See also shown in Figure 3 again, comprising three directional couplers 20 and low level control unit 21, one end of directional coupler 20 is connected with the arrival end of power input waveguide 11 and the port of export of power output waveguide 12 respectively, the other end all is connected with low level control unit 21, low level control unit 21 not only is connected with two limit sensors 19, also is connected with stepping motor 164 in moving horizontally drive unit 16 by stepper motor driver 22.Give low level control unit 21 in the computer by directional coupler 20 with the message transmission of input power and power output, low level control unit 21 is converted to the set point of current power allocation situation and input in advance the step number of advancing of stepping motor 164 after comparing again with adjusted value, the signal that will have the step number of advancing then transfers to stepper motor driver 22, drive power distribution unit 13 move left and right in the horizontal direction, accurately regulate the ratio of power output, make power output meet pre-provisioning request, not only can realize the along separate routes remote automation control of power export ratio, the merit that can also realize the high-power high-frequency input divide and along separate routes the power export ratio can regulate continuously.
Rectangular waveguide or coaxial waveguide are adopted in the high-power high-frequency transmission usually, because the simple cost of Rectangular Waveguide Structure is low, adopts rectangular waveguide transmission arrowband high frequency power usually, and for ultralow frequency or wideband transmit, adopt coaxial waveguide usually.Therefore large power waveguide power splitter of the present invention is only at the high-power power splitter that is used to transmit the arrowband.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating purpose of the present invention, and be not as limitation of the invention, as long as in essential scope of the present invention, all will drop in the scope of claim of the present invention variation, the modification of the above embodiment.
Claims (12)
1. the large power waveguide power splitter that can regulate the power output ratio, it is characterized in that: described large power waveguide power splitter adopts the rectangular waveguide of T shape structure, described T shape rectangular waveguide comprises power input waveguide and power output waveguide, described power output waveguide level communicates, and described power input waveguide communicates with the power output waveguide is vertical; The opposite of described power input waveguide is provided with power distribution unit, one end of described power distribution unit stretches into the lower end of power input waveguide, the base plate inboard of the other end of power distribution unit and rectangular waveguide offsets, have notch on the described base plate, the both sides shape of described power distribution unit is corresponding with the shape of power input waveguide and power output waveguide intersection; Described plate outer side is provided with and can makes the drive unit that moves horizontally that power distribution unit and both sides, power input waveguide lower end inwall offset, and the described drive unit that moves horizontally passes the notch of base plate and fixedlys connected with power distribution unit.
2. large power waveguide power splitter according to claim 1, it is characterized in that: described power distribution unit comprises baffle plate and/or merit sub-unit, described merit sub-unit comprises that merit divides plate and connecting plate, the structure that described merit divides plate and connecting plate to be isosceles triangle, the base plate inboard of connecting plate and rectangular waveguide offsets; One end of described baffle plate stretches in the power input waveguide, and the other end divides the intersection of plate to link to each other with merit.
3. large power waveguide power splitter according to claim 2 is characterized in that: described baffle plate is vertical with connecting plate.
4. large power waveguide power splitter according to claim 2 is characterized in that: described merit divides plate and connecting plate to be isosceles right triangle.
5. large power waveguide power splitter according to claim 2 is characterized in that: described connecting plate to merit is divided the vertical range of plate intersection and the equal in length on the narrow limit of rectangular waveguide.
6. large power waveguide power splitter according to claim 1, it is characterized in that: described large power waveguide power splitter comprises bead and/or chamfering, both sides, described power input waveguide lower end inwall stretches out and forms step-like bead, and it is corresponding that the height of bead and power distribution unit stretch into the position of an end of power input waveguide; The inclined-plane of described chamfering is connected with power input waveguide lower end and power output waveguide respectively.
7. large power waveguide power splitter according to claim 6 is characterized in that: the outward extending distance of described bead equates with the thickness that power distribution unit stretches into an end of power input waveguide.
8. large power waveguide power splitter according to claim 6 is characterized in that: the angle of described chamfering is 45 °.
9. large power waveguide power splitter according to claim 6 is characterized in that: the chamfering distance of described chamfering is 1/2 of the narrow edge lengths of rectangular waveguide.
10. large power waveguide power splitter according to claim 1, it is characterized in that: the described drive unit that moves horizontally comprises support, litter, screw rod and motor, described is set up in the floor below of rectangular waveguide and is connected and fixed with it, described litter level is located in the support, and litter links to each other with motor by screw rod; Described litter is connected and fixed by driving screw and power distribution unit.
11. according to each described large power waveguide power splitter among the claim 1-10, it is characterized in that: described large power waveguide power splitter also comprises stop, described stop is located at and is moved horizontally on the drive unit, and stop is corresponding with the position of both sides, power input waveguide lower end inwall.
12. large power waveguide power splitter according to claim 11, it is characterized in that: described large power waveguide power splitter also comprises directional coupler and low level control unit, one end of described directional coupler is connected with the arrival end of power input waveguide and the port of export of power output waveguide respectively, and the other end all is connected with the low level control unit; Described low level control unit is also respectively with stop and move horizontally drive unit and be connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200296214U CN201975491U (en) | 2011-01-27 | 2011-01-27 | High-power waveguide power divider capable of adjusting output power ratio |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200296214U CN201975491U (en) | 2011-01-27 | 2011-01-27 | High-power waveguide power divider capable of adjusting output power ratio |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176528A (en) * | 2011-01-27 | 2011-09-07 | 孙安 | High-power waveguide PD (power divider) capable of regulating output power |
| CN103022615A (en) * | 2012-12-06 | 2013-04-03 | 中国航天空气动力技术研究院 | Waveguide mode nine-channel equal output power distribution structure |
| CN104009275A (en) * | 2014-05-26 | 2014-08-27 | 中国科学院高能物理研究所 | High-power input coupler |
-
2011
- 2011-01-27 CN CN2011200296214U patent/CN201975491U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176528A (en) * | 2011-01-27 | 2011-09-07 | 孙安 | High-power waveguide PD (power divider) capable of regulating output power |
| CN102176528B (en) * | 2011-01-27 | 2014-03-26 | 孙安 | High-power waveguide PD (power divider) capable of regulating output power |
| CN103022615A (en) * | 2012-12-06 | 2013-04-03 | 中国航天空气动力技术研究院 | Waveguide mode nine-channel equal output power distribution structure |
| CN103022615B (en) * | 2012-12-06 | 2015-04-22 | 中国航天空气动力技术研究院 | Waveguide mode nine-channel equal output power distribution structure |
| CN104009275A (en) * | 2014-05-26 | 2014-08-27 | 中国科学院高能物理研究所 | High-power input coupler |
| CN104009275B (en) * | 2014-05-26 | 2016-09-07 | 中国科学院高能物理研究所 | A kind of high power input coupler |
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