CN107039221B - The controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind - Google Patents
The controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind Download PDFInfo
- Publication number
- CN107039221B CN107039221B CN201710455153.9A CN201710455153A CN107039221B CN 107039221 B CN107039221 B CN 107039221B CN 201710455153 A CN201710455153 A CN 201710455153A CN 107039221 B CN107039221 B CN 107039221B
- Authority
- CN
- China
- Prior art keywords
- wave
- slow
- wave structure
- band
- multifrequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/24—Slow-wave structures, e.g. delay systems
Landscapes
- Particle Accelerators (AREA)
Abstract
The invention discloses the controllable slow-wave structure folded form Relativistic backward-wave oscillators of across the wave band multifrequency of one kind, the device axial length for solving the existing High-Power Microwave for generating L ~ Ku wave band is longer, the problem of being unfavorable for device miniaturization, including sleeve, along the coaxial inner conductor of sleeve axle center setting, it is characterized in that being stacked with two sections of slow-wave structures in the sleeve, it is described wherein one section to include the slow-wave structure with centre bore disk-loaded waveguide be arranged in sleeve lining, described another section includes the slow-wave structure of edge hole disk-loaded waveguide in coaxial inner conductor setting, different cycles are under the action of each comfortable regulating mechanism of two sections of slow-wave structures, strong current electron beam is under slow-wave structure period modulation state, the High-Power Microwave of the device generation controllable L ~ Ku wave band of multifrequency.The present invention using the above structure, so that single device radiation can be achieved in the case where axial dimension is shorter and generate L ~ Ku wave band High-Power Microwave for Relativistic backward-wave oscillator, is conducive to device miniaturization, Integration Design requirement.
Description
Technical field
The invention belongs to high-power pulsed ion beams technical fields, and in particular to a kind of across wave band controllable slow-wave structure folding of multifrequency
Stack-type Relativistic backward-wave oscillator.
Background technique
Frequency equipment is used for reply is complicated, and the controllable high-power pulsed ion beams of multifrequency become that a kind of there is an urgent need to the cores of research
Part, the formation of such device are that a kind of potential application scene that is practical and proposing gradually is moved towards with High-Power Microwave technology
Implement countermeasure.Device is joined by adjustment structure under each pulse voltage in the controllable high-power pulsed ion beams course of work of multifrequency
Number can successively radiate the High-Power Microwave for generating different frequency, wherein each frequency point can be generated by default according to certain rule, respectively
Frequency point is independently generated according to a graded, is not interfere with each other.
Since sensitive relevance and structure of its structural parameters to output microwave frequency are easily adjusted, Relativistic backward-wave oscillator
One of main selection as the controllable high-power pulsed ion beams of multifrequency.The basic composition of Relativistic backward-wave oscillator mainly includes strong
Flow explosive emission cathode, reflection cavity, drift chamber, slow-wave structure and guidance magnetic field.Slow-wave structure is Relativistic backward-wave oscillator
Key area, relativistic backward wave oscillator is to be interacted using the backward wave in device with relativistic electron beam, to generate high power
Microwave, slow-wave structure period directly determine the High-Power Microwave frequency generated.
In Relativistic backward-wave oscillator, the energy exchange between electron beam and microwave passes through the back wave synchronous with electron beam
- 1 subharmonic complete, both electron beam velocity and the group velocity of -1 subharmonic of back wave were probably equal.The theory of relativity backward wave oscillation
Device is generally operational in 600kV~800kV or so, and electron beam velocity is generally 0.8c, then radiating microwave frequency and slow-wave structure has
Relational expression: f (GHz) d (cm) ≈ 12.
There is relational expression that can calculate in 1.5GHz~3GHz (L~S-band), slow wave by radiation microwave frequency and slow-wave structure
Structural cycle length is 8cm~4cm；7GHz~20GHz (C~Ku wave band), slow-wave structure cycle length are 1.7cm~0.6cm.
By above-mentioned calculating seeing as the strong incidence relation in slow-wave structure period and frequency, adjusting one section of slow-wave structure merely be cannot achieve
Relativistic backward-wave oscillator is generated in the High-Power Microwave of L~Ku wave band.To realize that single device generates covering L~Ku wave band
High-Power Microwave, a kind of method are using two sections of controllable slow wave periodic structures, and the slow-wave structure in two sections of adjustable periods is distinguished can
Generate the controllable low-frequency range of multifrequency (L~S-band) and the controllable high band of multifrequency (C~Ku wave band) High-Power Microwave.But this design
Method virtually extends the axial length of device, is unfavorable for device miniaturization, Integration Design requirement, more primary disadvantage is that
The power supply requirement for increasing guidance magnetic field, so that unit construction system is very huge.
Summary of the invention
The present invention provides the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind, solve for
Realize that single device generates the High-Power Microwave of covering L~Ku wave band, using two sections of controllable slow wave periodic structures, two sections adjustable
The slow-wave structure in period can produce the controllable low-frequency range of multifrequency (L~S-band) respectively and the controllable high band of multifrequency (C~Ku wave band) is high
Power microwave, but this design method virtually extends the axial length of device, is unfavorable for device miniaturization, Integration Design
It is required that more important is the power supply requirements for increasing guidance magnetic field, so that the very large problem of unit construction system.The present invention
It will include the high frequency in two sections of slow-wave structures with centre bore disk-loaded waveguide using coaxial Relativistic backward-wave oscillator design feature
On section slow-wave structure reversion " folding " to coaxial inner conductor, using the period including edge hole disk-loaded waveguide on coaxial inner conductor
Adjustable height frequency range (C~Ku wave band) slow-wave structure.
The present invention to achieve the above object, adopts the following technical scheme that a kind of across wave band controllable slow-wave structure of multifrequency folds
Type Relativistic backward-wave oscillator is stacked with two sections including sleeve, the coaxial inner conductor being arranged along sleeve axle center in the sleeve
Slow-wave structure, it is described wherein one section to include the slow-wave structure with centre bore disk-loaded waveguide be arranged in sleeve lining, described another section
Slow-wave structure including edge hole disk-loaded waveguide is arranged in coaxial inner conductor, each comfortable regulating mechanism of two sections of slow-wave structures
Effect is lower to be in different cycles, and for strong current electron beam under slow-wave structure period modulation state, device generates the controllable L~Ku wave of multifrequency
The High-Power Microwave of section.
Further, when the slow-wave structure work with centre bore disk-loaded waveguide, by edge hole disk-loaded slow-wave
Cycle length be adjusted to be 0, become the inner conductor of device, be not involved in the interaction of electron beam and slow-wave structure.
Further, when edge hole disk-loaded slow-wave works, by the slow-wave structure with centre bore disk-loaded waveguide
Cycle length be adjusted to be 0, become one section of electron beam transmission waveguide, be not involved in phase interaction of the electron beam with slow-wave structure
With.
Further, the slow-wave structure with centre bore disk-loaded waveguide is low-frequency range slow-wave structure, and the low-frequency range is slow
Wave structure interacts with the electron beam for passing through low-frequency range slow-wave structure, and it is controllably high that device generates low-frequency range (L~S-band) multifrequency
Power microwave.
Further, the slow-wave structure of the edge hole disk-loaded waveguide is high band slow-wave structure, the high band slow wave
Structure interacts with the electron beam for passing through high band slow-wave structure, and it is controllably high that device generates high band (C~Ku wave band) multifrequency
Power microwave.
Further, including two stepper motors connecting with regulating mechanism, the regulating mechanism includes edge porose disc lotus
Waveguide regulating mechanism, band centre bore disk-loaded waveguide regulating mechanism, with the step being connect with centre bore disk-loaded waveguide regulating mechanism
It is located at device exterior into motor, the stepper motor connecting with the edge hole disk-loaded waveguide regulating mechanism is located in coaxial inner conductor
Portion.
Further, each slow-wave structure is attached by the screw rod with the equal difference pitch of thread, the regulating mechanism
It is connect by helicitic texture with screw rod.
Compared with prior art, the present invention having the following advantages and beneficial effects:
Compared with prior art, the present invention utilizes coaxial Relativistic backward-wave oscillator design feature, will include band centre bore
On high band slow-wave structure reversion " folding " to coaxial inner conductor in two sections of slow-wave structures of disk-loaded waveguide, in coaxial inner conductor
It is upper to use period adjustable height frequency range (C~Ku wave band) slow-wave structure including edge hole disk-loaded waveguide.Band centre bore disk-loaded waveguide
Slow-wave structure it is in running order when, the edge hole disk-loaded slow-wave period modulation positioned at coaxial inner conductor is zero,
Device radiation generates the controllable High-Power Microwave of low-frequency range multifrequency；When edge hole disk-loaded slow-wave is in running order, band
Centre bore disk-loaded slow-wave period modulation is zero, and device radiation generates the controllable High-Power Microwave of high band multifrequency.
The controllable Relativistic backward-wave oscillator design method of multifrequency in the present invention takes full advantage of band centre bore disk-loaded waveguide
And the high-frequency microwave physical characteristic of edge hole disk-loaded waveguide, inner conductor is changed into the adjustable period using edge hole disk-loaded waveguide
Slow-wave structure expands the application range of coaxial Relativistic backward-wave oscillator, so that Relativistic backward-wave oscillator is in axial dimension
Not only it can realize that single device radiation generated L~Ku wave band High-Power Microwave in the case where shorter, but also be conducive to device miniaturization, collection
At change design requirement.
Detailed description of the invention
Fig. 1 is the front section view of the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across wave band multifrequency.
Fig. 2 is the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across wave band multifrequency in low-frequency range working condition
Front section view.
Fig. 3 is the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across wave band multifrequency in high band operation state
Front section view.
Wherein: 1, sleeve, 2, generate low-frequency range band centre bore disk-loaded slow-wave, 3, generate high band edge
Hole disk-loaded slow-wave, 4, band centre bore disk-loaded waveguide regulating mechanism, 5, edge hole disk-loaded waveguide regulating mechanism, 6, high current
Electron beam, 7, the stepper motor being connect with edge hole disk-loaded waveguide regulating mechanism.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, a kind of across wave band controllable slow-wave structure folded form Relativistic backward-wave oscillator of multifrequency, each component of device
Material is magnetism-free stainless steel.Including sleeve, effect is fixed each slow-wave structure and relevant connection section, it is ensured that each portion of device
Divide and completes various actions around device sleeve axis.Axle center along sleeve is provided with coaxial inner conductor.
Two sections of slow-wave structures are stacked in sleeve, wherein one section of slow-wave structure includes band center porose disc lotus wave, in sleeve
Inside setting；Another section of slow-wave structure includes belt edge hole disk-loaded waveguide, is arranged on coaxial inner conductor.Two sections of slow-wave structures
Independently of each other, and respectively it is separately adjustable so that slow-wave structure is in the different periods, strong current electron beam is in slow-wave structure period tune
Under whole state, device generates the High-Power Microwave of the controllable L~Ku wave band of multifrequency.
It is low-frequency range slow-wave structure including the slow-wave structure with centre bore disk-loaded waveguide, slow-wave structure has equal difference by one
The screw rod of the pitch of thread is attached, and is adjusted by screw rod so that each slow-wave structure is in different cycles, low-frequency range slow-wave structure with
The relativistic electron beam interaction for passing through low-frequency range slow-wave structure, generates controllable low-frequency range (L~S-band) high power of multifrequency
Microwave.Under extreme case, slow-wave structure cycle length is 0, to form one end electron beam transmission waveguide, be not involved in electron beam with
The interaction of slow-wave structure.
Slow-wave structure including edge hole disk-loaded waveguide is high band slow-wave structure, and slow-wave structure has equal difference spiral shell by one
Line away from screw rod be attached, adjusted by screw rod so that each slow-wave structure is in different cycles, high band slow-wave structure with wear
The more relativistic electron beam interaction of high band slow-wave structure, generates controllable high band (C~Ku wave band) high power of multifrequency
Microwave.Under extreme case, slow-wave structure cycle length be 0, thus formed backward wave device oscillation inner conductor, be not involved in electron beam with
The interaction of slow-wave structure.
When wherein one section of slow-wave structure is in running order, the cycle length of another section of slow-wave structure need to adjust most 0.
Specifically, when the slow-wave structure period modulation on coaxial inner conductor including edge hole disk-loaded waveguide is zero, including band centre bore
The slow-wave structure period of disk-loaded waveguide can be adjusted by device regulating mechanism, and then more under device radiation generation low frequency state
Frequently controllable High-Power Microwave；When including the slow-wave structure period modulation with centre bore disk-loaded waveguide is zero, device is coaxially interior
On conductor including edge hole hole disk-loaded waveguide the slow-wave structure period can by the device regulating mechanism inside coaxial inner conductor into
Row is adjusted, and then device radiation generates the High-Power Microwave that multifrequency is controllable under high frequency state.
Regulating mechanism in device convenient for adjusting slow-wave structure cycle length, regulating mechanism by helicitic texture and screw rod into
Row connection, power are provided by stepper motor.Regulating mechanism includes edge hole disk-loaded waveguide regulating mechanism and with center porose disc lotus
Waveguide regulating mechanism, the stepper motor connecting with edge hole disk-loaded waveguide regulating mechanism is located inside coaxial inner conductor, with center
The stepper motor of hole disk-loaded waveguide regulating mechanism connection is located at device exterior.It is fixedly connected between coaxial inner conductor and outer conductor
Support rod, support rod provide channel as electric power, and the stepper motor inside coaxial inner conductor passes through support rod and belt edge porose disc
The electrical connection of lotus waveguide regulating mechanism.
The even regulation in disk-loaded waveguide period adjusts to realize by the distance between two disk-loaded waveguide pieces.It is specifically adjusted
Implementation method are as follows: disk-loaded waveguide piece is connect by notch with metal circular waveguide, and by helicitic texture and has equal difference spiral shell
Line away from screw rod connection.Its pitch of thread of multi stage screw be respectively M, 2M, 3M ..., nM (M be screw thread distance length)；Each disk lotus wave
The coupled screw rod of guide card is corresponding to the same.According to the needs of mode conversion frequency, rotary screw certain angle θ (unit:
Radian), disk-loaded waveguide piece respectively move axially distance be θ M, 2 θ M, 3 θ M ..., n θ M so that disk-loaded waveguide piece is each
From axial movement distance be l, 2l, 3l ..., nl (l=θ M).The distance between disk-loaded waveguide piece is changed into d ± l by d in this way,
Corresponding band centre bore disk-loaded waveguide cycle length becomes p ± l from p.
The controllable slow-wave structure folded form the theory of relativity backward wave of across wave band multifrequency in low-frequency range working condition as shown in Figure 2
Oscillator, it is 0 that the slow-wave structure of high band device, which passes through the screw rod being connected to be adjusted to cycle length, in this state, is made
Its inner conductor for becoming device, is not involved in the interaction of electron beam and slow-wave structure.Low-frequency range slow wave knot is adjusted by screw rod
Structure, is at various sizes of slow-wave structure periodic state, and with the relativistic electron beam phase of passing through low-frequency range slow-wave structure
Interaction generates controllable low-frequency range (L~S-band) High-Power Microwave of multifrequency.
The controllable slow-wave structure folded form the theory of relativity backward wave of across wave band multifrequency in low-frequency range working condition as shown in Figure 3
Oscillator, it is 0 that the slow-wave structure of low-frequency range device, which passes through the screw rod being connected to be adjusted to cycle length, in this state, is made
It becomes one section of electron beam transmission waveguide, is not involved in the interaction of electron beam and slow-wave structure.High band is adjusted by screw rod
Slow-wave structure, is at various sizes of slow-wave structure periodic state, and with the theory of relativity electricity for passing through high band slow-wave structure
Beamlet interaction generates controllable high band (C~Ku wave band) High-Power Microwave of multifrequency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of across wave band controllable slow-wave structure folded form Relativistic backward-wave oscillator of multifrequency, including sleeve, set along sleeve axle center
The coaxial inner conductor set, it is characterised in that two sections of slow-wave structures are stacked in the sleeve, wherein one section includes band centre bore
The slow-wave structure of disk-loaded waveguide is arranged in sleeve lining, and another section of slow-wave structure including edge hole disk-loaded waveguide is led coaxially interior
Body is arranged, and is in different cycles under the action of each comfortable regulating mechanism of two sections of slow-wave structures, strong current electron beam is in slow wave knot
Under structure period modulation state, device generates the High-Power Microwave of the controllable L ~ Ku wave band of multifrequency, when with the slow of centre bore disk-loaded waveguide
When wave structure works, the cycle length of edge hole disk-loaded slow-wave is adjusted to be 0, becomes the inner conductor of device,
It is not involved in the interaction of electron beam and slow-wave structure, it, will be with center porose disc when the work of edge hole disk-loaded slow-wave
The cycle length of the slow-wave structure of lotus waveguide is adjusted to be 0, becomes one section of electron beam transmission waveguide, is not involved in electron beam and slow
The interaction of wave structure.
2. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1,
Be characterized in that the slow-wave structure with centre bore disk-loaded waveguide be low-frequency range slow-wave structure, the low-frequency range slow-wave structure with wear
More the electron beam interaction of low-frequency range slow-wave structure, device generate low-frequency range L ~ controllable High-Power Microwave of S-band multifrequency.
3. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1,
Be characterized in that the edge hole disk-loaded waveguide slow-wave structure be high band slow-wave structure, the high band slow-wave structure with pass through
The electron beam of high band slow-wave structure interacts, and device generates the controllable High-Power Microwave of high band C ~ Ku wave band multifrequency.
4. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1,
It is characterized in that including two stepper motors connecting with regulating mechanism, the regulating mechanism includes that edge hole disk-loaded waveguide adjusts machine
Structure, band centre bore disk-loaded waveguide regulating mechanism, are located at the stepper motor connecting with centre bore disk-loaded waveguide regulating mechanism
Device exterior, the stepper motor connecting with the edge hole disk-loaded waveguide regulating mechanism are located inside coaxial inner conductor.
5. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1,
Be characterized in that each slow-wave structure is attached by the screw rod with the equal difference pitch of thread, the regulating mechanism by helicitic texture with
Screw rod connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455153.9A CN107039221B (en) | 2017-06-16 | 2017-06-16 | The controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455153.9A CN107039221B (en) | 2017-06-16 | 2017-06-16 | The controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107039221A CN107039221A (en) | 2017-08-11 |
| CN107039221B true CN107039221B (en) | 2018-12-28 |
Family
ID=59541387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710455153.9A Active CN107039221B (en) | 2017-06-16 | 2017-06-16 | The controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107039221B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192640B (en) * | 2018-09-11 | 2019-07-05 | 中国人民解放军国防科技大学 | X, Ka-waveband-crossing frequency-adjustable relativistic backward wave oscillator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470076B (en) * | 2015-11-23 | 2017-03-15 | 中国工程物理研究院应用电子学研究所 | A kind of controllable high-power pulsed ion beams device of multifrequency |
| CN105869972B (en) * | 2016-04-14 | 2018-03-20 | 中国工程物理研究院应用电子学研究所 | One kind is greatly across the controllable Relativistic backward-wave oscillator of waveband double-frequency |
-
2017
- 2017-06-16 CN CN201710455153.9A patent/CN107039221B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107039221A (en) | 2017-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106971929B (en) | The controllable Relativistic backward-wave oscillator of across the wave band multifrequency of one kind | |
| CN109192640B (en) | X, Ka-waveband-crossing frequency-adjustable relativistic backward wave oscillator | |
| Zhang et al. | Research progresses on Cherenkov and transit-time high-power microwave sources at NUDT | |
| Tarakanov | Code KARAT in simulations of power microwave sources including Cherenkov plasma devices, vircators, orotron, E-field sensor, calorimeter etc. | |
| CN109148244B (en) | Axially tunable relativistic magnetron | |
| CN206864430U (en) | A kind of across wave band controllable slow-wave structure folded form Relativistic backward-wave oscillator of multifrequency | |
| CN111584330B (en) | Cerenkov microwave generator with frequency converted in C, X wave band | |
| Zhang et al. | Six-beam gun design for a high power multiple-beam klystron | |
| Vintizenko | Relativistic Magnetrons | |
| CN107946156A (en) | Electronic collector of coaxial transit time oscillator capable of working in long pulse state | |
| CN107039221B (en) | The controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind | |
| CN106783476B (en) | A kind of radially continuous wave Terahertz of double frequency tiltedly notes pipe | |
| CN206877965U (en) | A kind of across wave band controllable Relativistic backward-wave oscillator of multifrequency | |
| CN208767251U (en) | A kind of axially adjustable humorous relativistic magnetron | |
| CN109585242B (en) | Dual-frequency high-power microwave generator | |
| CN108615665B (en) | A kind of Relativistic backward-wave oscillator using magnet tail field | |
| Xu et al. | A novel wire-wrap slow-wave structure for terahertz backward wave oscillator applications | |
| Ju et al. | Proposal of a gigawatt-class L/Ku dual-band magnetically insulated transmission line oscillator | |
| Shi et al. | High efficiency and high power staggered double vane TWT amplifier enhanced by velocity-taper design | |
| Fuks et al. | Increased efficiency and faster turn-on in magnetrons using the transparent cathode | |
| CN108807111B (en) | Non-magnetic field electron beam self-excitation radiation high-power microwave device | |
| Franzi | Relativistic Recirculating Planar Magnetrons. | |
| Kishko et al. | Development of the 75-GHz planar gyrotron with transverse energy extraction | |
| Idehara et al. | Electron gun for powerful large orbit gyrotron | |
| CN113936982B (en) | Beam-regulated high-efficiency low-magnetic-field relativity backward wave tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |