CN117316741A - Output window and method for optimally designing output window - Google Patents

Output window and method for optimally designing output window Download PDF

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Publication number
CN117316741A
CN117316741A CN202311252920.8A CN202311252920A CN117316741A CN 117316741 A CN117316741 A CN 117316741A CN 202311252920 A CN202311252920 A CN 202311252920A CN 117316741 A CN117316741 A CN 117316741A
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output window
waveguide
output
window
hole
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曹静
高冬平
王颖
吴昆�
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Aerospace Information Research Institute of CAS
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Aerospace Information Research Institute of CAS
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/17—Mechanical parametric or variational design
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator

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  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Microwave Tubes (AREA)

Abstract

The disclosure provides an output window and a method for optimally designing the output window, which can be applied to the technical field of microwave electric vacuum. The output window includes: the input waveguide is arranged at the first end of the output window, the input cavity of the input waveguide is provided with a first inductance diaphragm, and the first inductance diaphragm is provided with a first through hole and a second through hole; the output waveguide is arranged at the second end of the output window, the output cavity of the output waveguide is provided with a second inductance diaphragm, and the second inductance diaphragm is provided with a third through hole and a fourth through hole; the first intermediate waveguide is arranged between the input waveguide and the output waveguide and is provided with a first window sheet; and the second intermediate waveguide is arranged between the input waveguide and the output waveguide and is provided with a second window sheet.

Description

Output window and method for optimally designing output window
Technical Field
The disclosure relates to the technical field of microwave electric vacuum, in particular to an output window and a method for optimally designing the output window.
Background
The klystron is a microwave electric vacuum device and is mainly used for final power amplification of a radar transmitter. The output window is used as an important component of the klystron, so that the microwave power can be well transmitted, and the vacuum sealing performance of the klystron can be maintained.
In the process of implementing the disclosed concept, the inventor finds that at least the following problems exist in the related art: the effective bandwidth of the output window in the related art is narrow.
Disclosure of Invention
In view of the foregoing, the present disclosure provides an output window and a method of optimally designing the output window.
There is provided according to a first aspect of the present disclosure an output window comprising:
the input waveguide is arranged at the first end of the output window, the input cavity of the input waveguide is provided with a first inductance diaphragm, and the first inductance diaphragm is provided with a first through hole and a second through hole;
the output waveguide is arranged at the second end of the output window, a second inductance diaphragm is arranged in an output cavity of the output waveguide, and a third through hole and a fourth through hole are formed in the second inductance diaphragm;
a first intermediate waveguide provided between the input waveguide and the output waveguide, the first intermediate waveguide being provided with a first window;
and a second intermediate waveguide provided between the input waveguide and the output waveguide, the second intermediate waveguide being provided with a second window.
According to an embodiment of the present disclosure, the output window further includes a first metal block and a second metal block;
wherein a first end of the first metal block is disposed between the first via and the second via, and a second end of the first metal block is disposed between the first intermediate waveguide and the second intermediate waveguide;
the first end of the second metal block is disposed between the third via and the fourth via, and the second end of the second metal block is disposed between the first intermediate waveguide and the second intermediate waveguide.
According to an embodiment of the present disclosure, the input waveguide, the output waveguide, the first intermediate waveguide, and the second intermediate waveguide are all rectangular.
According to an embodiment of the disclosure, the first intermediate waveguide and the second intermediate waveguide are disposed in parallel, and a gap is formed between the first intermediate waveguide and the second intermediate waveguide.
According to an embodiment of the present disclosure, the first through hole, the second through hole, the third through hole, and the fourth through hole are all rectangular.
According to an embodiment of the present disclosure, the first louver is welded to the first intermediate waveguide, and the second louver is welded to the second intermediate waveguide.
According to an embodiment of the present disclosure, the first and second louvers are ceramic louvers.
According to an embodiment of the present disclosure, the material of the ceramic window sheet includes at least one of aluminum oxide, beryllium oxide, and boron nitride.
A second aspect of the present disclosure provides a method for optimally designing the output window, including:
determining a size parameter to be optimized of an output window;
according to an optimal design target of the output window and the size parameter to be optimized, optimally designing the standing wave ratio of the output window to obtain a first optimal size parameter, wherein the optimal design target is that the standing wave ratio is smaller than 1.1;
according to the first optimized size parameter, calculating and analyzing the eigenmodes of the output window to obtain a first analysis result;
in the event that it is determined that the first analysis of the eigenmodes of the output window characterizes the eigenmodes as not being resonant modes, it is determined that the output window optimization is complete.
According to an embodiment of the present disclosure, the method for optimally designing the output window further includes:
under the condition that the first analysis result of the eigenmodes of the output window represents that the eigenmodes are resonant modes, updating the first optimized size parameter of the output window to obtain an updated output window;
according to the optimal design target of the output window, optimizing and calculating the standing wave ratio of the updated output window to obtain a second optimized size parameter;
according to the second optimized size parameter, calculating and analyzing the updated eigenmodes of the output window to obtain a second analysis result;
and determining that the updated output window is optimized if it is determined that the second analysis result characterizes the updated output window as not being in the resonant mode. According to the output window and the method for optimally designing the output window, the input waveguide is arranged at the first end of the output window, the input cavity of the input waveguide is provided with a first inductance membrane, and the first inductance membrane is provided with a first through hole and a second through hole; the output waveguide is arranged at the second end of the output window, the output cavity of the output waveguide is provided with a second inductance diaphragm, and the second inductance diaphragm is provided with a third through hole and a fourth through hole; the first intermediate waveguide is arranged between the input waveguide and the output waveguide and is provided with a first window sheet; and the second intermediate waveguide is arranged between the input waveguide and the output waveguide and is provided with a second window sheet. Dividing the window sheets of the output window into a first window sheet and a second window sheet changes the capacitance of the window sheets, so that the resonance frequency of the resonance mode can be changed, the frequency of the resonance mode in the frequency band of the output window is increased or decreased to be shifted out of the working frequency band, and the working bandwidth is improved.
Drawings
The foregoing and other objects, features and advantages of the disclosure will be more apparent from the following description of embodiments of the disclosure with reference to the accompanying drawings, in which:
fig. 1 schematically shows a schematic structure of a rectangular output window according to the related art;
FIG. 2A schematically illustrates a schematic diagram of a left side view of an output window according to an embodiment of the disclosure;
FIG. 2B schematically illustrates a schematic diagram of a cross-sectional view of an output window in a left view, in accordance with an embodiment of the disclosure;
FIG. 2C schematically illustrates a schematic diagram of a B-B cross-sectional view of an output window in a left view, in accordance with an embodiment of the disclosure; and
fig. 3 schematically illustrates a flow chart of a method of optimally designing an output window according to an embodiment of the disclosure.
Detailed Description
Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is only exemplary and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and/or the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.
Where expressions like at least one of "A, B and C, etc. are used, the expressions should generally be interpreted in accordance with the meaning as commonly understood by those skilled in the art (e.g.," a system having at least one of A, B and C "shall include, but not be limited to, a system having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).
The vacuum tightness of the output window mainly relates to welding between a ceramic window sheet and a metal material and between the metal material and the metal material, and belongs to the technical problem of electric vacuum welding technology; and the transmission performance of the output window belongs to the electric performance design problem of the microwave device.
The main electrical properties of the output window include standing wave-frequency characteristics, insertion loss, and sustainable power capacity. The requirement of klystrons for the output window is that the standing wave ratio is less than 1.1 within the required bandwidth with as low insertion loss as possible, and no resonant mode (i.e., ghost mode at the output window) within the bandwidth, under the precondition that the required peak power and average power capacity can be tolerated.
The output window has various forms, and the microwave output window widely used in the klystron at present comprises a box-type output window, a rectangular output window, a stepped output window, a coaxial output window and the like. In one example, the rectangular output window is composed of a half-wavelength thick window sheet and two inductive diaphragms placed symmetrically at a distance from the window sheet. The rectangular output window can obtain bandwidth with standing wave ratio smaller than 1.1 and wider by optimally adjusting the position and the size of the inductive diaphragm.
Fig. 1 schematically shows a schematic structure of a rectangular output window according to the related art.
As shown in FIG. 1, the rectangular waveguide of the rectangular output window is an X-band standard waveguide, the size is 26mmX10mm, the hatched area with cross lines is a window sheet, the parameter t represents the thickness of the window sheet, L represents the distance from the surface of the window sheet to the inductive diaphragm, and 1mm of the thickness of the inductive diaphragm is taken for ensuring certain mechanical strength, and d represents the opening width of the inductive diaphragm.
Compared with the box-type output window, the rectangular output window shown in fig. 1 is compact in structure, so that a klystron which generally works in high-frequency bands such as an X band mostly adopts the rectangular output window. With the development of simulation calculation software in the technical field of microwave electric vacuum, for the rectangular window structure shown in fig. 1, only parameters L, d and t to be optimized are required to be set, and the optimization target is set to be smaller than 1.1, so that a required parameter value can be obtained, and the size of the rectangular waveguide window in fig. 1 can be determined.
If the in-band resonance mode is not considered, under the condition that the material of the window sheet adopts a 95% alumina ceramic window, after the optimization design calculation, the output window standing wave ratio of the structure shown in the figure 1 is smaller than the frequency range of 1.1 from 9.082GHz to 10.89GHz, and the bandwidth can reach 1.8GHz.
However, if the output window has in-band resonant modes, these resonant modes cannot be transmitted or reflected through the window and therefore have high Q values, so that a high electric field is generated at the window, causing breakdown of the window and ignition of the waveguide, damaging the output window, and causing damage to devices and systems such as klystrons.
Therefore, when the output window is used as dual-port transmission, after the standing-wave ratio is optimized and calculated, ports of an output waveguide and an input waveguide of the output window are sealed by metal sheets to be used as the problem of intrinsic modes of the resonant cavity, whether a resonant mode exists in a frequency band is calculated, and analysis is performed according to the field type and the field distribution of the resonant mode, so that whether the mode can cause large loss and reflection at the window sheets is judged. Taking the rectangular output window in fig. 1 as an example, after the calculation of the resonant mode, there are resonant modes (units: GHz) of the following frequencies in the bandwidth (i.e., 9.082GHz to 10.89 GHz) range where the standing wave ratio is less than 1.1: 9.591,9.623, 10.13, 10.14, 10.8, wherein the resonant mode at a frequency of 10.13GHz is a traveling wave, capable of propagating through the window without causing damage to the window. The bandwidth between the several resonant modes, i.e. the effective bandwidth available for the output window, i.e. the maximum absolute bandwidth available for the rectangular window shown in fig. 1 is reduced to around 750MHz (i.e. between 10.14GHz and 10.89 GHz). The field distribution of these resonance modes was analyzed and it was found that the electric field of these resonance modes was concentrated in the window section and the electric field direction was parallel to the window. That is, the capacitance of these resonant modes is concentrated at the window. The resonant frequency of the resonant mode can be changed by adjusting the capacitance at the window.
In view of this, embodiments of the present disclosure provide an output window including: the input waveguide is arranged at the first end of the output window, the input cavity of the input waveguide is provided with a first inductance diaphragm, and the first inductance diaphragm is provided with a first through hole and a second through hole; the output waveguide is arranged at the second end of the output window, the output cavity of the output waveguide is provided with a second inductance diaphragm, and the second inductance diaphragm is provided with a third through hole and a fourth through hole; the first intermediate waveguide is arranged between the input waveguide and the output waveguide and is provided with a first window sheet; and the second intermediate waveguide is arranged between the input waveguide and the output waveguide and is provided with a second window sheet. Dividing the window sheets of the output window into a first window sheet and a second window sheet changes the capacitance of the window sheets, so that the resonance frequency of the resonance mode can be changed, the frequency of the resonance mode in the frequency band of the output window is increased or decreased to be shifted out of the working frequency band, and the working bandwidth is improved.
The output window of the embodiments of the present disclosure is specifically described below with reference to fig. 2A to 2C.
Fig. 2A schematically illustrates a schematic diagram of a left view of an output window according to an embodiment of the present disclosure.
Fig. 2B schematically illustrates a schematic diagram of a cross-sectional view of an output window in a left view, according to an embodiment of the disclosure.
Fig. 2C schematically illustrates a schematic diagram of a B-B cross-sectional view of an output window in a left view, in accordance with an embodiment of the disclosure.
As shown in fig. 2A-2C, the output window 200 may include an input waveguide 110, an output waveguide 220, a first intermediate waveguide 230, and a second intermediate waveguide 240.
The input waveguide 210 is disposed at the first end of the output window 200, the input cavity 211 of the input waveguide 210 is provided with a first inductive diaphragm 212, and the first inductive diaphragm 212 is provided with a first through hole 213 and a second through hole 214.
The output waveguide 220 is disposed at the second end of the output window 200, the output cavity 221 of the output waveguide 220 is provided with a second inductive diaphragm 222, and the second inductive diaphragm 222 is provided with a third through hole 223 and a fourth through hole 224.
The first intermediate waveguide 230 is disposed between the input waveguide 210 and the output waveguide 220, and the first intermediate waveguide 230 is provided with a first window 231.
A second intermediate waveguide 240 is disposed between the input waveguide 210 and the output waveguide 220, and the second intermediate waveguide 240 is provided with a second window 241.
According to an embodiment of the present disclosure, the first end of the output window 200 may be one end in the left view.
According to embodiments of the present disclosure, the effective absolute bandwidth of the output window of embodiments of the present disclosure may reach 1.48GHz.
According to the embodiment of the disclosure, the input waveguide is arranged at the first end of the output window, the input cavity of the input waveguide is provided with a first inductance membrane, and the first inductance membrane is provided with a first through hole and a second through hole; the output waveguide is arranged at the second end of the output window, the output cavity of the output waveguide is provided with a second inductance diaphragm, and the second inductance diaphragm is provided with a third through hole and a fourth through hole; the first intermediate waveguide is arranged between the input waveguide and the output waveguide and is provided with a first window sheet; and the second intermediate waveguide is arranged between the input waveguide and the output waveguide and is provided with a second window sheet. Dividing the window sheets of the output window into a first window sheet and a second window sheet changes the capacitance of the window sheets, so that the resonance frequency of the resonance mode can be changed, the frequency of the resonance mode in the frequency band of the output window is increased or decreased to be shifted out of the working frequency band, and the working bandwidth is improved.
The output window further includes a first metal block 250 and a second metal block 260 according to an embodiment of the present disclosure.
A first end of the first metal block 250 is disposed between the first and second through holes 213 and 214, and a second end of the first metal block 250 is disposed between the first and second intermediate waveguides 230 and 240.
The first end of the second metal block 260 is disposed between the third through hole 223 and the fourth through hole 224, and the second end of the second metal block 260 is disposed between the first intermediate waveguide 230 and the second intermediate waveguide 240.
According to the embodiment of the disclosure, by arranging the first metal block 250 and the second metal block 260, the microwave carried by the output window can be led into the first intermediate waveguide 230 and the second intermediate waveguide 240, so that the capacitance at the window piece is changed, the resonant frequency of the output window is changed, and therefore, the ghost mode in the frequency band of the output window is raised or lowered to be moved out of the working frequency band, and the working bandwidth is improved. Avoiding the problem of burst of the window sheets caused by the ghost mode.
According to an embodiment of the present disclosure, the input waveguide 210, the output waveguide 220, the first intermediate waveguide 230, and the second intermediate waveguide 240 are all rectangular.
According to an embodiment of the present disclosure, the input cavity 211 of the input waveguide 210, the output cavity 221 of the output waveguide 220 may also be rectangular, and the cavity in the first intermediate waveguide 230 and the cavity in the second intermediate waveguide 240 may also be rectangular.
According to the embodiment of the disclosure, the enclosed structure of the rectangular waveguide can also avoid external interference and radiation loss, so that the output window can have larger power capacity, and the rectangular waveguide has a simple structure and is convenient to manufacture.
According to the embodiment of the present disclosure, the first intermediate waveguide 230 and the second intermediate waveguide 240 are disposed in parallel, and a gap is formed between the first intermediate waveguide 230 and the second intermediate waveguide 240.
According to the embodiment of the present disclosure, a gap is formed between the first intermediate waveguide 230 and the second intermediate waveguide 240, so that the output window can be cooled through the gap under the working condition.
According to an embodiment of the present disclosure, the first through hole 213, the second through hole 214, the third through hole 223, and the fourth through hole 224 are all rectangular.
According to an embodiment of the present disclosure, the sizes of the first through hole 213, the second through hole 214, the third through hole 223, and the fourth through hole 224 may be the same, and the width of the first through hole 213 may be the same as the height of the cavity of the first intermediate waveguide 230, i.e., the height of the first through hole 213 is the same as the height of the first window 231. The height of the second through holes 214 may be the same as the height of the second louvers 241, the height of the third through holes 223 may be the same as the height of the first louvers 231, and the height of the fourth through holes 224 may be the same as the height of the second louvers 241.
According to an embodiment of the present disclosure, the first louver 231 is welded to the first intermediate waveguide 230, and the second louver 241 is welded to the second intermediate waveguide 240. The input waveguide 210, the first intermediate waveguide 230, the second intermediate waveguide 240, the first metal block 250, the second metal block 260, and the output waveguide 220 are all connected by brazing as shown in fig. 2A to 2C.
According to embodiments of the present disclosure, the first louver 231 is welded to the first intermediate waveguide 230, and the second louver 241 is welded to the second intermediate waveguide 240, which may increase the vacuum tightness of the output window.
As shown in fig. 2B and 2C, the height of the first window 231 in the A-A cross-sectional view and the length in the B-B cross-sectional view may be the height and length of the cavity of the first intermediate waveguide 230. The height of the second louver 241 in the A-A cross-sectional view and the length in the B-B cross-sectional view may be the height and length of the cavity of the second intermediate waveguide 240.
According to an embodiment of the present disclosure, the first and second panes are ceramic panes.
According to the embodiment of the disclosure, the ceramic window sheet can realize isolation and energy transmission between the external atmospheric environment and the high vacuum state in the microwave device.
According to an embodiment of the present disclosure, the material of the ceramic window sheet includes at least one of aluminum oxide, beryllium oxide, and boron nitride.
Fig. 3 schematically illustrates a flow chart of a method of optimally designing an output window according to an embodiment of the disclosure.
As shown in fig. 3, the method includes operations S310 to S390.
In operation S310, a size parameter of the output window to be optimized is determined.
In operation S320, according to the optimal design target and the size parameter to be optimized of the output window, the standing wave ratio of the output window is optimally designed to obtain a first optimal size parameter, wherein the optimal design target is that the standing wave ratio is less than 1.1.
In operation S330, according to the first optimized size parameter, a calculation analysis is performed on the eigenmodes of the output window, so as to obtain a first analysis result.
In operation S340, it is determined whether the first analysis result of the eigenmode of the output window represents that the eigenmode is a resonance mode, operation S350 is performed in case it is determined that the first analysis result represents that the eigenmode is a resonance mode, and operation S390 is performed in case it is determined that the first analysis result represents that the eigenmode is not a resonance mode.
In operation S350, the first optimized size parameter of the output window is updated, and an updated output window is obtained.
In operation S360, according to the optimization design target of the output window, the standing wave ratio of the updated output window is optimized and calculated, so as to obtain a second optimized size parameter.
In operation S370, according to the second optimized size parameter, the updated eigenmodes of the output window are computationally analyzed to obtain a second analysis result.
In operation S380, it is determined whether the second analysis result characterizes the mode as the resonance mode, operation S350 is performed in case it is determined that the second analysis result characterizes the eigenmode as the resonance mode, and operation S390 is performed in case it is determined that the second analysis result characterizes the eigenmode as not the resonance mode.
In operation S390, it is determined that the output window optimization is completed.
According to the embodiment of the disclosure, the size parameter to be optimized of the output window may be parameters of sizes such as a first intermediate waveguide, a second intermediate waveguide, a first window, a second window, a first through hole, a second through hole, a third through hole, a fourth through hole, and the like, a size value range of each part of the output window may be set, an eigenmode of the output window is analyzed according to an optimization target, and an optimization design target of the output window may be that a standing wave ratio is less than 1.1.
According to embodiments of the present disclosure, the dimensions of the input waveguide and the output waveguide may be determined values using requirements, not as parameters requiring an optimal design.
According to the embodiment of the disclosure, the standing wave ratio of the output window can be calculated and analyzed through the three-dimensional calculation software CST microwave working chamber, and the parameter value range of the size parameter to be optimized is determined.
According to the embodiment of the disclosure, when the first analysis result of the eigenmodes of the output window in the working frequency band represents that the eigenmodes are resonant modes, a first optimized size parameter with the greatest influence on the formation of the resonant modes in the first analysis result can be adjusted according to the first analysis result, and analysis is continuously performed on the eigenmodes and standing wave ratio of the updated output window according to the updated first optimized size parameter until the analysis result of the eigenmodes of the updated output window represents that the eigenmodes are not resonant modes, namely, the resonant modes can be moved out of the bandwidth range of the output window, so that the output window is determined to be optimized, and the output window with the bandwidth and the standing wave ratio meeting the requirements is obtained.
According to an embodiment of the present disclosure, continuing to analyze the eigenmodes and standing wave ratios of the updated output window according to the updated first optimized dimension parameter may be performed as follows: performing optimization calculation of standing wave ratio on the updated output window to obtain a second optimized size parameter, analyzing the eigenmodes of the updated output window according to the second optimized size parameter to obtain a second analysis result, adjusting the second optimized size parameter which has the greatest influence on the formation of the resonance mode in the second analysis result according to the second analysis result when the eigenmodes are resonance modes, and executing operation S350 by taking the updated second optimized size parameter as the first optimized size parameter until the fact that the eigenmodes are resonance modes is determined to be the second analysis result, namely the resonance modes can be moved out of the bandwidth range of the output window, and determining that the optimization of the output window is completed to obtain the output window with the bandwidth and the standing wave ratio meeting the requirements.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Those skilled in the art will appreciate that the features recited in the various embodiments of the disclosure and/or in the claims may be provided in a variety of combinations and/or combinations, even if such combinations or combinations are not explicitly recited in the disclosure. In particular, the features recited in the various embodiments of the present disclosure and/or the claims may be variously combined and/or combined without departing from the spirit and teachings of the present disclosure. All such combinations and/or combinations fall within the scope of the present disclosure.
The embodiments of the present disclosure are described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the embodiments cannot be used advantageously in combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be made by those skilled in the art without departing from the scope of the disclosure, and such alternatives and modifications are intended to fall within the scope of the disclosure.

Claims (10)

1. An output window, comprising:
the input waveguide is arranged at the first end of the output window, a first inductance diaphragm is arranged in an input cavity of the input waveguide, and a first through hole and a second through hole are formed in the first inductance diaphragm;
the output waveguide is arranged at the second end of the output window, a second inductance diaphragm is arranged in an output cavity of the output waveguide, and a third through hole and a fourth through hole are formed in the second inductance diaphragm;
the first intermediate waveguide is arranged between the input waveguide and the output waveguide, and is provided with a first window sheet;
and the second intermediate waveguide is arranged between the input waveguide and the output waveguide, and is provided with a second window sheet.
2. The output window of claim 1, further comprising a first metal block and a second metal block;
the first end of the first metal block is arranged between the first through hole and the second through hole, and the second end of the first metal block is arranged between the first intermediate waveguide and the second intermediate waveguide;
the first end of the second metal block is arranged between the third through hole and the fourth through hole, and the second end of the second metal block is arranged between the first intermediate waveguide and the second intermediate waveguide.
3. The output window of claim 1, wherein the input waveguide, the output waveguide, the first intermediate waveguide, and the second intermediate waveguide are each rectangular.
4. The output window of any of claims 1-3, wherein the first intermediate waveguide and the second intermediate waveguide are disposed in parallel with a gap therebetween.
5. The output window according to any one of claims 1 to 3, wherein the first through hole, the second through hole, the third through hole, and the fourth through hole are each rectangular.
6. The output window according to any one of claims 1 to 3, wherein the first louver is welded to the first intermediate waveguide and the second louver is welded to the second intermediate waveguide.
7. The output window of any of claims 1-3, wherein the first and second panes are ceramic panes.
8. The output window of claim 7, wherein the ceramic window sheet material comprises at least one of aluminum oxide, beryllium oxide, and boron nitride.
9. A method of optimally designing the output window of any one of claims 1 to 8, comprising:
determining a size parameter to be optimized of an output window;
according to the optimal design target of the output window and the size parameter to be optimized, performing optimal calculation on the standing wave ratio of the output window to obtain a first optimal size parameter, wherein the optimal design target is that the standing wave ratio is smaller than 1.1;
according to the first optimized size parameter, computing and analyzing the eigenmodes of the output window to obtain a first analysis result;
in the event that it is determined that the first analysis of the eigenmodes of the output window characterizes the eigenmodes as not being resonant modes, it is determined that the output window optimization is complete.
10. The method of claim 9, further comprising:
updating the optimized size parameter of the output window under the condition that a first analysis result of the eigenmodes of the output window represents that the eigenmodes are resonance modes, so as to obtain an updated output window;
according to the optimal design target of the output window, optimizing and calculating the standing wave ratio of the updated output window to obtain a second optimized size parameter;
according to the second optimized size parameter, computing and analyzing the eigenmodes of the updated output window to obtain a second analysis result;
determining that the updated output window optimization is complete in the event that the second analysis result is determined to characterize the updated output window as not being a resonant mode.
CN202311252920.8A 2023-09-26 2023-09-26 Output window and method for optimally designing output window Pending CN117316741A (en)

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