CN102868011A - Coaxial overlapped output resonant cavity of radio-frequency wideband high-power electron tube amplifier - Google Patents
Coaxial overlapped output resonant cavity of radio-frequency wideband high-power electron tube amplifier Download PDFInfo
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- CN102868011A CN102868011A CN2012102566378A CN201210256637A CN102868011A CN 102868011 A CN102868011 A CN 102868011A CN 2012102566378 A CN2012102566378 A CN 2012102566378A CN 201210256637 A CN201210256637 A CN 201210256637A CN 102868011 A CN102868011 A CN 102868011A
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Abstract
The invention discloses a coaxial overlapped output resonant cavity of a radio-frequency wideband high-power electron tube amplifier. The coaxial overlapped output resonant cavity is used for carrying out tuning modulation on a radio-frequency wideband high-power electron tube amplifier output circuit. The coaxial overlapped output resonant cavity comprises a resonant cavity internal conductor, a resonant cavity intermediate conductor, a resonant cavity external conductor, a radio-frequency output coaxial feeder, a coaxial film bridging capacitor, an inner cavity output tuning matching cavity plate, an inner cavity output resonant matching cavity plate adjusting device, an outer cavity output tuning matching cavity plate and an outer cavity output tuning matching cavity plate adjusting device. By means of the technical scheme of the invention, the coaxial overlapped output resonant cavity breaks through the bottleneck of a radio-frequency high-power output loop, plays a decisive role in smooth realization of megawatt-scale power tuning coupling output within a 24-100MHz frequency-band range and provides necessary conditions for nuclear fusion large science experiments.
Description
Technical field
The present invention relates to the resonant cavity technical field, particularly relate to the coaxial eclipsed form output cavity of a kind of rf broadband high-power tube amplifier.
Background technology
In the prior art, the routine techniques scheme of output cavity is the structure of resonant cavity+coupling capacitance, because the power output that needs reaches MW class, routine techniques is very high to the performance requirement of vacuum device, therefore, output cavity of the prior art can not satisfy the requirement of megawatt rank power output.
Summary of the invention
The invention provides the coaxial eclipsed form output cavity of a kind of rf broadband high-power tube amplifier, can not satisfy the problem of megawatt rank demanded power output to solve output cavity of the prior art.
The invention provides the coaxial eclipsed form output cavity of a kind of rf broadband high-power tube amplifier, be used to rf broadband high-power tube amplifier output loop to carry out tuning allotment, comprise: resonant cavity inner wire, resonant cavity middle conductor, resonant cavity outer conductor, radio frequency output coaxial feeder, coaxial film capacitance, inner chamber output resonance matching chamber plate, inner chamber output resonance matching chamber slab adjusting device, exocoel output resonance matching chamber plate and exocoel output resonance matching chamber slab adjusting device; Resonant cavity inner wire, resonant cavity middle conductor and resonant cavity outer conductor are coaxial configuration, form the interior resonance chamber between resonant cavity inner wire and the resonant cavity middle conductor, form exterior resonant cavity between resonant cavity middle conductor and the resonant cavity outer conductor outer conductor; Be provided with inner chamber output resonance matching chamber plate in the interior resonance chamber, inner chamber output resonance matching chamber plate is used for carrying out tuning according to the internal resonant cavity of radio-frequency power output frequency; Inner chamber output resonance matching chamber plate is connected with inner chamber output resonance matching chamber slab adjusting device, is used for regulating the position of inner chamber output resonance matching chamber plate; Be provided with exocoel output resonance matching chamber plate in the exterior resonant cavity, exocoel output resonance matching chamber plate is used for according to the radio-frequency power output frequency exterior resonant cavity being allocated; Exocoel output resonance matching chamber plate is connected with exocoel output resonance matching chamber slab adjusting device, is used for regulating the position of exocoel output resonance matching chamber plate; The resonant cavity inner wire is connected with the anode of discharge-tube amplifier by the coaxial film capacitance of bottom, is used for the radio-frequency power that discharge-tube amplifier sends is transmitted; Radio frequency output coaxial feeder is arranged on the resonant cavity outer conductor, is used for carrying out radio-frequency power output.
Preferably, the resonant cavity inner wire is coaxitron.
Preferably, the resonant cavity middle conductor is the equivalent circular frame structure that polygon surrounds.
Preferably, the resonant cavity outer conductor is the square-shaped frame shelf structure.
Preferably, 1/4 λ wavelength, 1/2 λ wavelength or 3/4 λ wavelength short circuit resonant cavity mode of operation are mated respectively according to the radio-frequency power output frequency in exterior resonant cavity and interior resonance chamber.
Preferably, inner chamber output resonance matching chamber plate and exocoel output resonance matching chamber plate adopt the air slide structure, and inner chamber output resonance matching chamber slab adjusting device and exocoel output resonance matching chamber slab adjusting device are for regulating the thick stick silk.
Preferably, be provided with openable window on the resonant cavity inner wire, be used for installing or taking out discharge-tube amplifier.
Preferably, the exterior resonant cavity bottom is provided with one or more waveguide absorbers.
Preferably, radio frequency output coaxial feeder carries out the radio-frequency power output of 1.5MW within 24MHz to 100MHz frequency range.
Beneficial effect of the present invention is as follows:
Can regulate the resonance inner chamber by having, exocoel, the coaxial feeder mode is adopted in radio frequency output, according to the reasonably combined interior exocoel output mode (1/4 of frequency, 1/2 or 3/4 wavelength short circuit resonant cavity mode of operation), the bandwidth of operation of tuning covering 24 ~ 100MHz, solved the problem that output cavity of the prior art can not satisfy megawatt rank demanded power output, broken through the bottleneck of RF high power output element, MW class intensity tuning in 24 ~ 100MHz band limits coupling output is realized smoothly, played conclusive effect, for the test of nuclear fusion big science provides necessary condition.
Description of drawings
Fig. 1 is the structural representation of the coaxial eclipsed form output cavity of rf broadband high-power tube amplifier of the embodiment of the invention;
Fig. 2 is the 1.5MW coaxial cavity output driving of the embodiment of the invention and the schematic diagram of pneumatic adjusting short circuit chamber plate 3-D effect;
Fig. 3 is the schematic diagram that the 1.5MW coaxial cavity of the embodiment of the invention is exported the 3-D effect of driving and pneumatic adjusting short circuit chamber plate cross section;
Fig. 4 is the 1.5MW cavity power amplifier output loop principle schematic of the embodiment of the invention;
Fig. 5 is the 1.5MW cavity power amplifier frequency low side output loop schematic equivalent circuit of the embodiment of the invention;
Fig. 6 is the high-end output loop schematic equivalent circuit of 1.5MW cavity power amplifier frequency of the embodiment of the invention;
Fig. 7 is the two coaxial short chamber of the 1.5MW of the embodiment of the invention net minute cold schematic diagram of sweeping test curve (49MHz);
Fig. 8 is that the schematic diagram that the collection of TH525 electron tube load operating state cuts (44MHz) is put in the 1.5MW chamber of the embodiment of the invention.
Embodiment
Can not satisfy the problem of megawatt rank demanded power output in order to solve output cavity of the prior art, the invention provides the coaxial eclipsed form output cavity of a kind of rf broadband high-power tube amplifier, include and to regulate resonance inner chamber, exocoel, the inner wire of above-mentioned interior exterior resonant cavity inner chamber is the coaxial metal pipe, outer conductor is middle conductor, and its formation is shaped as equivalent round that polygonal metallic plate surrounds; The inner wire of described exocoel also as the outer conductor of inner chamber, is middle conductor, and the outer conductor of resonant cavity exocoel is the square structure that metallic plate forms; The inner wire of described inner chamber is connected with wing by coaxial film capacitance, be used for carry high frequency power, the coaxial feeder mode is adopted in radio frequency output, the coaxial eclipsed form output cavity of rf broadband high-power tube amplifier of the embodiment of the invention is according to the reasonably combined interior exocoel output mode of frequency (1/4,1/2 or 3/4 wavelength short circuit resonant cavity mode of operation), the bandwidth of operation of tuning covering 24 ~ 100MHz.Below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, does not limit the present invention.
According to embodiments of the invention, provide a kind of rf broadband high-power tube amplifier coaxial eclipsed form output cavity, be used to rf broadband high-power tube amplifier output loop to carry out tuning allotment, Fig. 1 is the structural representation of the coaxial eclipsed form output cavity of rf broadband high-power tube amplifier of the embodiment of the invention, Fig. 2 is the 1.5MW coaxial cavity output driving of the embodiment of the invention and the schematic diagram of pneumatic adjusting short circuit chamber plate 3-D effect, Fig. 3 is the schematic diagram that the 1.5MW coaxial cavity of the embodiment of the invention is exported the 3-D effect of driving and pneumatic adjusting short circuit chamber plate cross section, such as Fig. 1,2, shown in 3, comprise according to the coaxial eclipsed form output cavity of rf broadband high-power tube amplifier of the embodiment of the invention: resonant cavity inner wire 10, resonant cavity middle conductor 11, resonant cavity outer conductor 12, radio frequency output coaxial feeder 13, coaxial film capacitance 14, inner chamber output resonance matching chamber plate 15, inner chamber output resonance matching chamber slab adjusting device 16, exocoel output resonance matching chamber plate 17, and exocoel output resonance matching chamber slab adjusting device 18; Below the modules of the embodiment of the invention is described in detail.
Resonant cavity inner wire 10, resonant cavity middle conductor 11 are coaxial configuration with resonant cavity outer conductor 12, form the interior resonance chamber between resonant cavity inner wire 10 and the resonant cavity middle conductor 11, form exterior resonant cavity between resonant cavity middle conductor 11 and resonant cavity outer conductor 12 outer conductors; Preferably, resonant cavity inner wire 10 is coaxitron; The equivalent circular frame structure that resonant cavity middle conductor 11 surrounds for polygon.Resonant cavity outer conductor 12 is the square-shaped frame shelf structure.
Preferably, be provided with openable window on the resonant cavity inner wire 10, be used for installing or taking out discharge-tube amplifier.
Be provided with inner chamber output resonance matching chamber plate 15 in the interior resonance chamber, inner chamber output resonance matching chamber plate 15 is used for carrying out tuning according to the internal resonant cavity of radio-frequency power output frequency; Particularly, 1/4 λ wavelength, 1/2 λ wavelength or 3/4 λ wavelength short circuit resonant cavity mode of operation are mated respectively according to the radio-frequency power output frequency in exterior resonant cavity and interior resonance chamber.
Inner chamber output resonance matching chamber plate 15 is connected with inner chamber output resonance matching chamber slab adjusting device 16, is used for regulating the position of inner chamber output resonance matching chamber plate 15;
Be provided with exocoel output resonance matching chamber plate 17 in the exterior resonant cavity, exocoel output resonance matching chamber plate 17 is used for according to the radio-frequency power output frequency exterior resonant cavity being allocated; Preferably, the exterior resonant cavity bottom is provided with one or more waveguide absorbers.
Exocoel output resonance matching chamber plate 17 is connected with exocoel output resonance matching chamber slab adjusting device 18, is used for regulating the position of exocoel output resonance matching chamber plate 17;
Preferably, in embodiments of the present invention, inner chamber output resonance matching chamber plate 15 and exocoel output resonance matching chamber plate 17 adopt the air slide structure, and inner chamber output resonance matching chamber slab adjusting device 16 and exocoel output resonance matching chamber slab adjusting device 18 are for regulating the thick stick silk.
Resonant cavity inner wire 10 is connected with the anode of discharge-tube amplifier by the coaxial film capacitance 14 of bottom, is used for the radio-frequency power that discharge-tube amplifier sends is transmitted;
Radio frequency output coaxial feeder 13 is arranged on the resonant cavity outer conductor 12, is used for carrying out radio-frequency power output.Preferably, radio frequency output coaxial feeder 13 carries out the radio-frequency power output of 1.5MW within 24MHz to 100MHz frequency range.
Need to prove, preferably, be square about the exocoel 1m of output resonance matching chamber size, made by the copper aluminium material material, effectively adjustable range needs greater than 1m, considers actual bottom maintenance the window's position, and pneumatic parts installation site is left at output feedback pipe position and top.Lumen adopts the circular making of polygonal approximation.Access panel should be stayed in front and back at lumen.Inner chamber adopts circular copper pipe.Other general material comprises: copper coin, sheffield plate, Beryllium Bronze Spring contact, metal leading screw, steel aluminum frame.Interior outer chamber adopts leading screw, Timing Belt form to regulate, and detection, location and stopping means need be arranged.
Below in conjunction with accompanying drawing, the technique scheme of the embodiment of the invention is elaborated.
The coaxial eclipsed form output cavity of rf broadband high-power tube amplifier of the embodiment of the invention uses design for MW class cermet electronics tetrode amplifier output loop, be used for tuning and allotment, the discharge-tube amplifier output loop requires in 24MHz to 100MHz frequency range, output 1.5MW radio frequency continuous wave power, there is not the lumped parameter vacuum capacitance of enough power capacities to realize the power delivery coupling, so in embodiments of the present invention, output loop is carried out the form that tuning allotment all need be adopted the coaxial short chamber, tuning by the length inner chamber that changes the short circuit chamber in different frequency ranges, the method for exocoel allotment realizes.It is high-end to enter frequency, in adjustment process in exocoel all to carry out the conversion of 1/4 λ, 1/2 λ and 3/4 λ circuit-mode.In addition, electron tube can be opened a window installation or taking-up in the middle of cavity, need not mobile whole cavity, and cavity short board employing air slide structure, can realize easily the needs that the wide region cavity is tuning.
From physical model, the inner chamber of the coaxial eclipsed form output cavity of rf broadband high-power tube amplifier of the embodiment of the invention is a circular copper pipe, lumen is considered the restriction of difficulty of processing and profile size, come equivalent coaxial round by polygonized structure, therefore inner chamber can be similar to coaxial cavity, and the exocoel equivalence is the circumference chamber.Fig. 4 is the 1.5MW cavity power amplifier output loop principle schematic of the embodiment of the invention, as shown in Figure 4, the coaxial eclipsed form output cavity of rf broadband high-power tube amplifier of the embodiment of the invention mainly is comprised of following components: export tuning inner chamber inductance L 101 and drive unit M9, output allotment exocoel inductance L 102 and drive unit M10.
By analysis, 1.5MW the output cavity circuit-mode is different in the high-end form that presents of frequency low side and frequency, Fig. 5 is the 1.5MW cavity power amplifier frequency low side output loop schematic equivalent circuit of the embodiment of the invention, as shown in Figure 5, at the frequency low side, 0 ~ 1/4 λ short-circuit line pattern is used in its coupling chamber, becomes perception.
Fig. 6 is the high-end output loop schematic equivalent circuit of 1.5MW cavity power amplifier frequency of the embodiment of the invention, as shown in Figure 6,1.5MW output cavity is high-end in frequency, because the chamber is long too short, the impact of the edge effects such as bottom, chamber electron tube, output feeder, the cavity adjustment can't meet the demands, so 1/2 λ short-circuit line pattern is used in its coupling chamber, become capacitive, the exocoel adjusting position is corresponding growth also, in order to overcome the restriction of high band physical size, also need to regulate with 3/4 λ perceptual model simultaneously.The equivalent inductance mode computation is as follows: Co represents the wing output capacitance, and C102 represents the anode capacitance, the equiva lent impedance when Roe is anode resonance, and R is the load equivalent impedance.Inner chamber and exocoel characteristic impedance are calculated as given data by physical size, and demand goes out induction reactance and the cavity of different frequency lower inner cavity and exocoel and regulates two unknown parameters of length.By mating condition of resonance: the impedance Z from the dotted line end to load end, its real part should equal electron tube output load impedance Roe, and its imaginary part is 0 two equations, just can find the solution L101 and L102, and its computational process is as follows:
L101, L102 and R and expressing in series is:
According to network condition of resonance formula, loop Q value:
X
L=R
L·Q；
；
If:
Can get:
；
Table 1 is that exocoel perception (1/4 λ, 3/4 λ) pattern and exocoel are capacitive mode EXCEL result of calculation.
Table 1
As can be seen from Table 1, when frequency changed to 100MHz from 24, outer cavity length changed to 0.3 meter from 2.1 meters, and inner chamber changes to 0.2 meter from 1.1 meters, and obviously its physical size covers whole frequencies and can't realize.High-end in frequency, because the chamber is long too short, the impact of the edge effects such as bottom, chamber, electron tube, output port, the exocoel adjustment can't have been satisfied the requirement of practical application, therefore 1/4 λ ~ 1/2 λ short circuit chamber pattern is used in its output matching chamber, become capacitive, the exocoel adjusting position has just increased, and also corresponding growth of inner chamber adjusting position.Its breakover point selects to consider that about 40MHz, this moment, external cavity length was about 0.5 meter.
By calculating, when frequency changed to 70MHz from 24, outer cavity length changed to 0.3 meter from 2.1 meters, inner chamber from.1.1 rice changes to 0.2 meter.In the middle of real work is used, especially high-end in frequency, because the chamber is long too short, bottom, chamber electron tube, the impact of the edge effects such as output feeder, exocoel adjustment can't have been satisfied the requirement of practical application, therefore 1/4 λ ~ 1/2 λ short-circuit line pattern is used in its output matching chamber, become capacitive, the exocoel adjusting position has just increased, and also corresponding growth of inner chamber adjusting position.Its breakover point selects to consider in 40 ~ 50MHz scope that this moment, external cavity length was about 1 meter.Use the exocoel capacitive, inner chamber is used 3/4 λ short circuit chamber pattern and is covered 70 ~ 100MHz frequency range, and exocoel is from 1.8 ~ 1.3 meters, and inner chamber is from 2.8 ~ 1.8 meters.
Fig. 7 is the two coaxial short chamber of the 1.5MW of the embodiment of the invention net minute cold schematic diagram of sweeping test curve (49MHz), and Fig. 8 is that the schematic diagram that the collection of TH525 electron tube load operating state cuts (44MHz) is put in the 1.5MW chamber of the embodiment of the invention.
In sum, the coaxial eclipsed form output cavity of rf broadband high-power tube amplifier of the embodiment of the invention adopts two pneumatic adjusting patterns with frequency shift; The motor coarse adjustment is preset cylinder air pressure and is in full release condition, cavity and contact spring break away from fully, the mechanical damage of avoiding long distance moving friction to bring, and low-power fine tuning working cylinder air pressure is in half release condition, cavity and the slight friction of reed appropriateness can be carried out hot low-power debugging.In addition, the technical scheme of the embodiment of the invention adopts coaxial inside and outside overlapping chamber pattern, and exocoel is used for the load allotment, inner chamber is used for frequency tuning, adopts respectively 1/4 λ, and 1/2 λ and 3/4 λ several modes cover thereby be implemented in the super broadband of 24 ~ 100MHz.In addition, cavity bottom is equipped with a plurality of waveguide absorbers, solves cavity higher mode self-excitation problem.The coaxial eclipsed form output cavity of rf broadband high-power tube amplifier of the embodiment of the invention vertically convenient Whole frequency band of realizing in perpendicular chamber is regulated, and can effectively realize intensity tuning, coupling and the transmission of continuous wave MW class RF high power discharge-tube amplifier.
Although be the example purpose, the preferred embodiments of the present invention are disclosed, it also is possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present invention should be not limited to above-described embodiment.
Claims (9)
1. coaxial eclipsed form output cavity of rf broadband high-power tube amplifier, be used to rf broadband high-power tube amplifier output loop to carry out tuning allotment, it is characterized in that, comprising: resonant cavity inner wire, resonant cavity middle conductor, resonant cavity outer conductor, radio frequency output coaxial feeder, coaxial film capacitance, inner chamber output resonance matching chamber plate, inner chamber output resonance matching chamber slab adjusting device, exocoel output resonance matching chamber plate and exocoel output resonance matching chamber slab adjusting device;
Described resonant cavity inner wire, described resonant cavity middle conductor and described resonant cavity outer conductor are coaxial configuration, form the interior resonance chamber between described resonant cavity inner wire and the described resonant cavity middle conductor, form exterior resonant cavity between described resonant cavity middle conductor and the described resonant cavity outer conductor outer conductor; Be provided with described inner chamber output resonance matching chamber plate in the described interior resonance chamber, described inner chamber output resonance matching chamber plate is used for carrying out tuning according to the radio-frequency power output frequency to described interior resonance chamber; Described inner chamber output resonance matching chamber plate is connected with described inner chamber output resonance matching chamber slab adjusting device, is used for regulating the position of described inner chamber output resonance matching chamber plate; Be provided with described exocoel output resonance matching chamber plate in the described exterior resonant cavity, described exocoel output resonance matching chamber plate is used for according to the radio-frequency power output frequency described exterior resonant cavity being allocated; Described exocoel output resonance matching chamber plate is connected with described exocoel output resonance matching chamber slab adjusting device, is used for regulating the position of described exocoel output resonance matching chamber plate; Described resonant cavity inner wire is connected with the anode of described discharge-tube amplifier by the described coaxial film capacitance of bottom, is used for the radio-frequency power that described discharge-tube amplifier sends is transmitted; Described radio frequency output coaxial feeder is arranged on the described resonant cavity outer conductor, is used for carrying out radio-frequency power output.
2. resonant cavity as claimed in claim 1 is characterized in that, described resonant cavity inner wire is coaxitron.
3. resonant cavity as claimed in claim 2 is characterized in that, described resonant cavity middle conductor is the equivalent circular frame structure that polygon surrounds.
4. resonant cavity as claimed in claim 3 is characterized in that, described resonant cavity outer conductor is the square-shaped frame shelf structure.
5. resonant cavity as claimed in claim 4 is characterized in that, 1/4 λ wavelength, 1/2 λ wavelength or 3/4 λ wavelength short circuit resonant cavity mode of operation are mated respectively according to the radio-frequency power output frequency in described exterior resonant cavity and described interior resonance chamber.
6. resonant cavity as claimed in claim 1, it is characterized in that, described inner chamber output resonance matching chamber plate and described exocoel output resonance matching chamber plate adopt the air slide structure, and described inner chamber output resonance matching chamber slab adjusting device and described exocoel output resonance matching chamber slab adjusting device are for regulating the thick stick silk.
7. resonant cavity as claimed in claim 1 is characterized in that, is provided with openable window on the described resonant cavity inner wire, is used for installing or taking out described discharge-tube amplifier.
8. resonant cavity as claimed in claim 1 is characterized in that, described exterior resonant cavity bottom is provided with one or more waveguide absorbers.
9. resonant cavity as claimed in claim 1 is characterized in that, described radio frequency output coaxial feeder carries out the radio-frequency power output of 1.5MW within 24MHz to 100MHz frequency range.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106041795A (en) * | 2016-08-04 | 2016-10-26 | 北京长峰广播通讯设备有限责任公司 | Pneumatic device for high-power transmitter |
| CN106206219A (en) * | 2016-08-31 | 2016-12-07 | 中国工程物理研究院应用电子学研究所 | A kind of tunable klystron amplifier output cavity |
| CN109786922A (en) * | 2018-12-11 | 2019-05-21 | 北京铭安博运科技有限公司 | A kind of microwave coaxial transmission coupled resonator |
| CN110534860A (en) * | 2019-08-19 | 2019-12-03 | 南京从景生物技术有限公司 | A kind of New Ring-like Type resonant cavity |
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| CN200993994Y (en) * | 2006-12-31 | 2007-12-19 | 北京北广科技股份有限公司 | Broadband coupled resonant cavity short-circuit board tuning device |
| CN202084622U (en) * | 2010-10-14 | 2011-12-21 | 中国科学院等离子体物理研究所 | Coaxially foldable output resonant cavities of broadband radio-frequency high-power electronic tube amplifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200993994Y (en) * | 2006-12-31 | 2007-12-19 | 北京北广科技股份有限公司 | Broadband coupled resonant cavity short-circuit board tuning device |
| CN202084622U (en) * | 2010-10-14 | 2011-12-21 | 中国科学院等离子体物理研究所 | Coaxially foldable output resonant cavities of broadband radio-frequency high-power electronic tube amplifier |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106041795A (en) * | 2016-08-04 | 2016-10-26 | 北京长峰广播通讯设备有限责任公司 | Pneumatic device for high-power transmitter |
| CN106041795B (en) * | 2016-08-04 | 2017-11-10 | 北京长峰广播通讯设备有限责任公司 | A kind of high-power transmitter pneumatic means |
| CN106206219A (en) * | 2016-08-31 | 2016-12-07 | 中国工程物理研究院应用电子学研究所 | A kind of tunable klystron amplifier output cavity |
| CN106206219B (en) * | 2016-08-31 | 2018-07-20 | 中国工程物理研究院应用电子学研究所 | A kind of tunable klystron amplifier output cavity |
| CN109786922A (en) * | 2018-12-11 | 2019-05-21 | 北京铭安博运科技有限公司 | A kind of microwave coaxial transmission coupled resonator |
| CN110534860A (en) * | 2019-08-19 | 2019-12-03 | 南京从景生物技术有限公司 | A kind of New Ring-like Type resonant cavity |
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