CN107248605A - A kind of high-power circulator and its anti-micro discharge design method - Google Patents
A kind of high-power circulator and its anti-micro discharge design method Download PDFInfo
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- CN107248605A CN107248605A CN201710465708.8A CN201710465708A CN107248605A CN 107248605 A CN107248605 A CN 107248605A CN 201710465708 A CN201710465708 A CN 201710465708A CN 107248605 A CN107248605 A CN 107248605A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
- H01P1/38—Circulators
- H01P1/383—Junction circulators, e.g. Y-circulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
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Abstract
A kind of high-power circulator, including metallic cavity (1), ferrite gyromagnet substrate (2) and medium neck (3)；Metallic cavity (1) includes upper lid, base, and the upper upper minute surface symmetric position of lid and bottom seat is fluted, and upper lid is arranged on base, and cavity is formed between upper lid and base；Ferrite gyromagnet substrate (2) is located in medium neck (3)；Medium neck (3) is arranged in the cavity of metallic cavity (1), between the groove of upper lid and bottom seat so that ferrite gyromagnet substrate (2) is adjacent to metallic cavity (1).The method of the present invention is optimized by preliminary electrical property design first concentrates on by force gyromagnet substrate region by most high field, then multilayer concentric medium annulus is loaded in the region and constitutes medium neck of the dielectric constant with spatial variations, then electrical property optimization and micro discharge simulation optimization are further carried out, realize that micro discharge electron trajectory is blocked on the premise of actual electrical property needs are met, effectively lifting micro-discharge threshold power.
Description
Technical field
The present invention relates to a kind of circulator and its anti-micro discharge design method.
Background technology
The high micro discharging risk of spacecraft HIGH-POWERED MICROWAVES part is influence spacecraft payload long-life, high reliability
Key factor, be also the maximum single point failure link of satellite under high-power applications.
Traditional micro discharge suppressing method is broadly divided into two classes：Physics suppressing method and Chemical Inhibition method.Wherein, physics
Suppressing method mainly realizes the raising of micro-discharge threshold by increasing metal surface spacing at microwave component maximum field intensity.It is right
For spacecraft microwave component, because its volume and quality are carefully controlled, micro-discharge threshold is improved by increasing physical size
Method there is significant limitation.Meanwhile, it can improve being limited in scope for micro-discharge threshold, volume by increasing physical size
Increase will bring high cost to space application, be impossible approach under many applicable cases.
Chemical Inhibition method mainly by coating special material in metal surface, is reduced such as A Luoding (Alodine)
Metal surface secondary is produced, and finally realizes the suppression of micro discharge.Such method causes the generally increase of loss, to micro-
The influence of parts for wave electrical property is larger.
The content of the invention
The technical problems to be solved by the invention are：Overcoming the deficiencies in the prior art, there is provided a kind of high-power circulator
And its anti-micro discharge design method, most high field is concentrated on by force by gyromagnet substrate region by the optimization of preliminary electrical property design first,
Then in the region, loading multilayer concentric medium annulus constitutes dielectric constant with the medium neck of spatial variations, then further enters
Row electrical property optimizes and micro discharge simulation optimization, realizes that micro discharge electron trajectory hinders on the premise of actual performance needs are met
It is disconnected, effectively lift micro-discharge threshold power.
The present invention technical solution be：A kind of high-power circulator, including metallic cavity, ferrite gyromagnet substrate and
Medium neck；Metallic cavity includes upper lid, base, and the upper upper minute surface symmetric position of lid and bottom seat is fluted, and upper lid is arranged on base
On, form cavity between upper lid and base；Ferrite gyromagnet substrate is located in medium neck；Medium neck is arranged on metallic cavity
Cavity in, positioned at upper lid and bottom seat groove between so that ferrite gyromagnet substrate is adjacent to metallic cavity.
There is the metal matching platform of projection in the middle part of the metallic cavity base, medium neck is arranged on metal matching platform.
Lid, which matches platform corresponding position with the metal on metallic cavity base, in the metallic cavity the metal of projection
With platform.
The medium neck includes N number of concentric medium annulus, dielectric cylinder, and N number of medium annulus is sequentially sleeved in medium circle
Outside post, the relative dielectric constant of medium annulus gradually increases from outermost layer to center, and the relative dielectric constant of dielectric cylinder is more than N
The relative dielectric constant of individual medium annulus；Wherein, N is positive integer.
The ferrite gyromagnet substrate is arranged in medium annulus, positioned at dielectric cylinder one end or respectively positioned at dielectric cylinder
Two ends, fit with lid or base in metallic cavity.
There is the circular detent for blocking medium neck in the middle part of the metal matching platform, detent depth is little
In 0.5mm.
The material of the medium neck is monocrystal material, boron nitride, polyimides or ceramics.
A kind of anti-micro discharge design method of high-power circulator, including step are as follows：
Step 1: the center operating frequency f of given circulatorr, bandwidth of operation BW, each interport isolation, micro discharge power will
Seek P, the material of metallic cavity and metallic cavity secondary electron emission characteristic parameter, the unit for electrical property parameters of ferrite gyromagnet substrate
And the secondary electron emission characteristic parameter of ferrite gyromagnet substrate；
Step 2: the center operating frequency f of the circulator given according to step oner, bandwidth of operation BW, each interport isolation
With the unit for electrical property parameters of ferrite gyromagnet substrate, the maxwell equation group developed with reference to description electromagnetic field obtains circulator
Physical dimension；
Step 3: the circulator structures size determined according to step 2, sets up the 3-D geometric model of circulator, it will go in ring
The 3-D geometric model of device is divided into m grid cell, the maxwell equation group developed with description electromagnetic field, it is determined that going in ring
Magnetic distribution in device 3-D geometric model at each each grid cell；M is positive integer；
Step 4: the magnetic distribution in the circulator 3-D geometric model obtained in step 3, it is determined that most high field
Strong position, determines the installation site of medium neck and determines the number of plies N of medium neck intermediary matter annulus；
Step 5: repeat the physical dimension of adjustment circulator and build the 3-D geometric model of circulator again, with retouching
The newly-established circulator 3-D geometric model of maxwell equation group counterweight for stating electromagnetic field evolution carries out electromagnetic-field simulation, and ties
Close the material and its secondary electron emission characteristic parameter, the secondary electricity of ferrite gyromagnet substrate of the metallic cavity determined in step one
The Lorentz equation of sub- emission characteristics parameter, the maxwell equation group developed with description electromagnetic field and description electron motion
Group, calculates the micro discharge power threshold for obtaining circulator, until the center operating frequency in electromagnetic-field simulation result is equal to step
The center operating frequency f given in oner, bandwidth of operation be more than or equal to step one in give bandwidth of operation BW, each port isolation
Degree is less than or equal to each interport isolation given in step 2, and the micro discharge power threshold of circulator is more than or equal to step one
In give micro discharge power requirement P.
The unit for electrical property parameters of the ferrite gyromagnet substrate includes relative dielectric constant εr, relative permeability μr, loss angle just
Cut tan δ, line width LW, magnetic saturation tensor MSWith secondary electron emission characteristic parameter, additional magnetic bias direction and size B0；
The secondary electron emission characteristic parameter includes maximum secondary electron emission coefficiency δ during electronics vertical incidencemax、
δmaxCorresponding electron impact ENERGY Emax, secondary electron yield be 1 when corresponding minimum electron impact ENERGY Emin。
The physical dimension of the circulator includes port width w, the cavity height h of metallic cavity, ferrite gyromagnet substrate
Radius r1, height h1, the radius r of medium neck0, height hr, the radius r of detent0, height h0, the half of metal matching platform
Footpath r2, height h2。
The advantage of the present invention compared with prior art is：
(1) circulator of the invention in traditional circulator design by adding medium neck so that electronics is transported in vacuum
Dynamic rail mark is blocked, and eliminates one of the necessary condition that electron multiplication is moved in micro discharge, anti-micro discharge design is realized, with existing skill
Art is compared, and has the advantages that physical dimension is smaller, micro discharge power is higher；
(2) method of the invention proposes the medium neck being made up of N number of concentric dielectric ring and its resists micro- put in circulator
Application and optimization method in electricity design, on the premise of electrical property is kept approximately constant, changes and most easily occur micro discharge position
Ferrite gyromagnet substrate and metallic cavity combination, then made most by the Optimal Structure Designing to ferrite gyromagnet substrate
Big field strength concentrates on electron movement path with most easy region of discharge and is blocked region, compared with prior art, is not influenceing to go in ring
On the premise of device is lost with remaining unit for electrical property parameters, the micro-discharge threshold power for being successfully realized circulator is increased substantially.
(3) circulator proposed by the present invention and its anti-micro discharge design method have that small volume, structure are easy to process, micro- put
The advantages of electric threshold power lifts notable, while avoiding due to low pressure discharge equivalent risk caused by viscose outlet, for boat
Its device high-power circulator has a extensive future.
Brief description of the drawings
Fig. 1 is biplate gyromagnet substrate circulator basic structure of the present invention；
Fig. 2 is monolithic gyromagnet substrate circulator basic structure of the present invention；
Fig. 3 (a) is parameters of structural dimension of the circulator in section view angle of the present invention；
Fig. 3 (b) is parameters of structural dimension schematic diagram of the base in depression angle of metallic cavity in the present invention；
Fig. 4 is that present media neck constitutes structure three-dimensional schematic diagram；
Fig. 5 optimizes structure for circulator of the present invention with detent.
Embodiment
A kind of high-power circulator, including metallic cavity 1, ferrite gyromagnet substrate 2 and medium neck 3；Metallic cavity 1 is wrapped
Lid, base are included, the upper upper minute surface symmetric position of lid and bottom seat is fluted, and upper lid is arranged on base, shape between upper lid and base
Into cavity；Ferrite gyromagnet substrate 2 is located in medium neck 3；Medium neck 3 is arranged in the cavity of metallic cavity 1, positioned at upper
Between the groove of lid and bottom seat so that ferrite gyromagnet substrate 2 is adjacent to metallic cavity 1.
There is the metal matching platform 5 of projection in the middle part of the groove floor of the base of metallic cavity 1, medium neck 3 is arranged on metal
With on platform 5.Lid, which matches the corresponding position of platform 5 with the metal on the base of metallic cavity 1, in metallic cavity 1 the metal matching of projection
Platform 5.
Medium neck 3 includes N number of concentric medium annulus, dielectric cylinder, and N number of medium annulus is sequentially sleeved in dielectric cylinder
Outside, the relative dielectric constant of medium annulus gradually increases from outermost layer to center, and the relative dielectric constant of dielectric cylinder is more than N number of
The relative dielectric constant of medium annulus；Wherein, N is positive integer.The material of medium neck 3 is monocrystal material, boron nitride, polyamides Asia
Amine or ceramics.
As shown in Figure 1 and Figure 2, ferrite gyromagnet substrate 2 is arranged in medium annulus, and quantity is a piece of or two panels, positioned at Jie
Matter cylinder one end is located at dielectric cylinder two ends respectively, is fitted with lid or base in metallic cavity 1.
As shown in figure 5, the middle part of metal matching platform 5 can process the circular detent 4 for blocking medium neck 3,
The depth of detent 4 is not more than 0.5mm.
A kind of anti-micro discharge design method of high-power circulator, including step are as follows：
Step 1: the center operating frequency f of given circulatorr, bandwidth of operation BW, each interport isolation, micro discharge power will
Seek P, the material of metallic cavity 1 and metallic cavity 1 secondary electron emission characteristic parameter, the electrical property of ferrite gyromagnet substrate 2
Parameter and its secondary electron emission characteristic parameter；
The unit for electrical property parameters of the ferrite gyromagnet substrate 2 includes relative dielectric constant εr, relative permeability μr, loss angle
Tangent tan δ, line width LW, magnetic saturation tensor MSWith secondary electron emission characteristic parameter, additional magnetic bias direction and size B0；
The secondary electron emission characteristic parameter includes maximum secondary electron emission coefficiency δ during electronics vertical incidencemax、
δmaxCorresponding electron impact ENERGY Emax, secondary electron yield be 1 when corresponding minimum electron impact ENERGY Emin。
Step 2: the center operating frequency f of the circulator given according to step oner, bandwidth of operation BW, each interport isolation
With the unit for electrical property parameters of ferrite gyromagnet substrate 2, the maxwell equation group developed with reference to description electromagnetic field obtains circulator
Physical dimension；
As shown in Fig. 3 (a), Fig. 3 (b), the physical dimension of the circulator includes port width w, the cavity of metallic cavity 1
Height h, the radius r of ferrite gyromagnet substrate 21, height h1, the radius r of medium neck 30, height hr, the radius of detent 4
r0, height h0, the radius r of metal matching platform 52, height h2。
Step 3: the circulator structures size determined according to step 2, sets up the 3-D geometric model of circulator, it will go in ring
The 3-D geometric model of device is divided into m grid cell, the maxwell equation group developed with description electromagnetic field, it is determined that going in ring
Magnetic distribution in device 3-D geometric model at each each grid cell；M is positive integer；
Step 4: the magnetic distribution in the circulator 3-D geometric model obtained in step 3, it is determined that most high field
Strong position, determines the installation site of medium neck 3 and determines the number of plies N of medium annulus in medium neck 3；
Step 5: repeat the physical dimension of adjustment circulator and build the 3-D geometric model of circulator again, with retouching
The newly-established circulator 3-D geometric model of maxwell equation group counterweight for stating electromagnetic field evolution carries out electromagnetic-field simulation, and ties
Close the material of metallic cavity 1 determined in step one and its secondary electron emission characteristic parameter, ferrite gyromagnet substrate 2 it is secondary
The Lorentz equation of electron emission characteristic parameter, the maxwell equation group developed with description electromagnetic field and description electron motion
Group, calculates the micro discharge power threshold for obtaining circulator, until the center operating frequency in electromagnetic-field simulation result is equal to step
The center operating frequency f given in oner, bandwidth of operation be more than or equal to step one in give bandwidth of operation BW, each port isolation
Degree is less than or equal to each interport isolation given in step one, and the micro discharge power threshold of circulator is more than or equal to step one
In give micro discharge power requirement P.
Embodiment one：High-power Y types junction circulator and its anti-micro discharge design method
As shown in figure 5, the high-power circulator includes metallic cavity 1, ferrite gyromagnet substrate 2 and medium neck 3, its
In metal matching platform 5 and detent 4 is processed in metallic cavity 1, wherein ferrite gyromagnet substrate 2 is located in medium neck 3,
Ferrite gyromagnet base is clamped in metallic cavity 1 for 2 by medium neck 3；The upper lid of metallic cavity 1 is arranged on base, upper lid
Cavity is formed between base, cavity includes the central area and three ports of a loading ferrite gyromagnet substrate 2, three ends
Mouth is connected with outside line respectively, and when the electromagnetic wave incident of certain frequency is to a port, then the electromagnetic wave is next by what is gone in ring
Port is exported, and has certain isolation for the 3rd port.
Using the high-power circulator and its anti-micro discharge design method, carry out micro discharge suppression circulator optimization and set
Meter, comprises the following steps：
(1) the center operating frequency f of circulator is givenrFor 3.25GHz, bandwidth of operation BWFor 50MHz, each interport isolation
For -25dB, micro discharge power requirement P be 1000W, metallic cavity 1 material be silver and its secondary electron emission characteristic parameter, iron
The unit for electrical property parameters and its secondary electron emission characteristic parameter of oxysome gyromagnet substrate 2；
The unit for electrical property parameters of ferrite gyromagnet substrate 2 includes relative dielectric constant εrFor 13, relative permeability μrFor 1, loss
Angle tangent tan δ are 0.009, line width LWFor 2, magnetic saturation tensor MSIt is perpendicular to ferrite rotation for 600G, additional magnetic bias direction
Magnetic substrate 2, additional magnetic bias size B0For 0；
The secondary electron emission characteristic parameter of ferrite gyromagnet substrate 2 includes maximum secondary electronics during electronics vertical incidence
Emission ratio δmaxMaximum secondary electron emission coefficiency δ during for 2.4, vertical incidencemaxCorrespondence ENERGY EmaxFor 300eV, secondary electricity
Minimum correspondence ENERGY E when sub- emission ratio is 1minFor 30eV；
The secondary electron emission characteristic parameter of metallic cavity 1 includes maximum secondary electron emission system during electronics vertical incidence
Number δmaxFor 2.2, correspondence electron impact ENERGY EmaxCorresponding minimum electron impact when for 165eV, secondary electron yield being 1
ENERGY EminFor 30eV；
(2) the center operating frequency f of circulator is given according to step (1)r, bandwidth of operation BW, each interport isolation and iron oxygen
The unit for electrical property parameters of body gyromagnet substrate 2, the maxwell equation group developed with reference to description electromagnetic field, determines the structure chi of circulator
Very little (Zhang Guorong etc., microwave ferrite material and device, Electronic Industry Press, 1993), the physical dimension of circulator includes
Port width w, the cavity height h of metallic cavity 1, the radius r of ferrite gyromagnet substrate 21, height h1, the radius of medium neck 3
r0, height hr, the radius r of detent 40, height h0, the radius r of metal matching platform 52, height h2；Wherein, hr=h-h2+h0；
(3) the circulator structures size determined according to step (2), sets up the 3-D geometric model of circulator, by foundation
3-D geometric model resolves into several grid cells, the maxwell equation group developed with description electromagnetic field, it is determined that going in ring
Magnetic distribution in device 3-D geometric model at each each grid cell；
(4) magnetic distribution in step (3) the circulator 3-D geometric model determines most high field strong position, really
Determine the installation site of medium neck 3 and determine the number of plies of medium annulus in medium neck 3, the medium neck 3 is located at wire chamber
Between body 1, ferrite gyromagnet substrate 2 is included in medium neck 3 and makes the one side and metallic cavity of ferrite gyromagnet substrate 2
1 laminating；As shown in figure 4, medium neck 3 includes N number of concentric medium annulus, dielectric cylinder, wherein, N=1 in the present embodiment,
The relative dielectric constant of i-th of medium annulus is εri(outermost medium annulus is the 1st medium annulus, is compiled successively to center
Number), εr1=2.1；The relative dielectric constant ε of center dielectric cylinderr0=5.5.
(5) physical dimension of adjustment circulator is repeated, and builds circulator 3-D geometric model again, using business electromagnetism
The maxwell equation group that simulation software HFSS develops with description electromagnetic field carries out electricity to the circulator 3-D geometric model
Magnetic field simulation, makes the center operating frequency in electromagnetic-field simulation result be equal to the central task of the circulator given in step (1)
Frequency fr, bandwidth of operation be more than or equal to step (1) give bandwidth of operation BW, each interport isolation be less than or equal to step (1)
Given each interport isolation；And combine the material and its secondary electron emission characteristic ginseng of the metallic cavity 1 that step (1) is determined
Number, the secondary electron emission characteristic parameter of ferrite gyromagnet substrate 2, are used using business software CST particle simulation operating room
The Lorentz equation group of maxwell equation group and description electron motion that electromagnetic field develops is described, calculates and obtains the micro- of circulator
Discharge power threshold value is 3200W, the micro discharge power requirement P given much larger than step (1).
The anti-micro discharge design of high-power circulator is realized, high-power circulator values of the structural parameters is as shown in table 1；
The high micro-discharge threshold circulator designed using the inventive method and traditional design circulator unit for electrical property parameters with it is micro-
Discharge threshold contrast is as shown in table 2.
The high-power circulator values of the structural parameters of table 1
The circulator micro discharge optimization design experimental results of table 2 are contrasted
The content not being described in detail in description of the invention belongs to the known technology of those skilled in the art.
Claims (10)
1. a kind of high-power circulator, it is characterised in that including metallic cavity (1), ferrite gyromagnet substrate (2) and medium neck
(3)；Metallic cavity (1) includes upper lid, base, and the upper upper minute surface symmetric position of lid and bottom seat is fluted, and upper lid is arranged on base,
Cavity is formed between upper lid and base；Ferrite gyromagnet substrate (2) is located in medium neck (3)；Medium neck (3) is arranged on gold
In the cavity for belonging to cavity (1), between the groove of upper lid and bottom seat so that ferrite gyromagnet substrate (2) is adjacent to metallic cavity
(1)。
2. a kind of high-power circulator according to claim 1, it is characterised in that in the middle part of metallic cavity (1) base
There is the metal matching platform (5) of projection, medium neck (3) is arranged on metal matching platform (5).
3. a kind of high-power circulator according to claim 2, it is characterised in that Gai Yujin on the metallic cavity (1)
There is the metal matching platform (5) of projection metal matching platform (5) corresponding position on category cavity (1) base.
4. a kind of high-power circulator according to claim 3, it is characterised in that the medium neck (3) includes N number of same
Medium annulus, the dielectric cylinder of the heart, N number of medium annulus are sequentially sleeved in outside dielectric cylinder, the relative dielectric constant of medium annulus from
Outermost layer gradually increases to center, and the relative dielectric constant of dielectric cylinder is more than the relative dielectric constant of N number of medium annulus；Its
In, N is positive integer.
5. a kind of high-power circulator according to claim 4, it is characterised in that ferrite gyromagnet substrate (2) peace
In medium annulus, positioned at dielectric cylinder one end or it is located at respectively on dielectric cylinder two ends, with metallic cavity (1) and covers or base
Laminating.
6. a kind of high-power circulator according to claim 3, it is characterised in that have in the middle part of the metal matching platform (5)
Circular detent (4) for blocking medium neck (3), detent (4) depth is not more than 0.5mm.
7. a kind of high-power circulator according to claim 4, it is characterised in that the material of the medium neck (3) is
Monocrystal material, boron nitride, polyimides or ceramics.
8. a kind of anti-micro discharge design method of high-power circulator as described in any claim in claim 1~7, its
It is characterised by, including step is as follows：
Step 1: the center operating frequency f of given circulatorr, bandwidth of operation BW, each interport isolation, micro discharge power requirement P,
The material of metallic cavity (1) and the secondary electron emission characteristic parameter of metallic cavity (1), ferrite gyromagnet substrate (2) it is electrical
The secondary electron emission characteristic parameter of energy parameter and ferrite gyromagnet substrate (2)；
Step 2: the center operating frequency f of the circulator given according to step oner, bandwidth of operation BW, each interport isolation and iron
The unit for electrical property parameters of oxysome gyromagnet substrate (2), the maxwell equation group developed with reference to description electromagnetic field, obtains the knot of circulator
Structure size；
Step 3: the circulator structures size determined according to step 2, sets up the 3-D geometric model of circulator, by circulator
3-D geometric model is divided into m grid cell, the maxwell equation group developed with description electromagnetic field, determines circulator three
Tie up the magnetic distribution at each each grid cell in geometrical model；M is positive integer；
Step 4: the magnetic distribution in the circulator 3-D geometric model obtained in step 3, it is determined that the strong position of most high field
Put, determine the installation site of medium neck (3) and determine the number of plies N of medium annulus in medium neck (3)；
Step 5: repeating the physical dimension of adjustment circulator and building the 3-D geometric model of circulator again, with description electricity
The newly-established circulator 3-D geometric model of maxwell equation group counterweight that magnetic field develops carries out electromagnetic-field simulation, and combines step
The material and its secondary electron emission characteristic parameter of the metallic cavity (1) determined in rapid one, ferrite gyromagnet substrate (2) it is secondary
The Lorentz equation of electron emission characteristic parameter, the maxwell equation group developed with description electromagnetic field and description electron motion
Group, calculates the micro discharge power threshold for obtaining circulator, until the center operating frequency in electromagnetic-field simulation result is equal to step
The center operating frequency f given in oner, bandwidth of operation be more than or equal to step one in give bandwidth of operation BW, each port isolation
Degree is less than or equal to each interport isolation given in step 2, and the micro discharge power threshold of circulator is more than or equal to step one
In give micro discharge power requirement P.
9. a kind of anti-micro discharge design method of high-power circulator according to claim 8, it is characterised in that：The iron
The unit for electrical property parameters of oxysome gyromagnet substrate (2) includes relative dielectric constant εr, relative permeability μr, losstangenttanδ, line width
LW, magnetic saturation tensor MSWith secondary electron emission characteristic parameter, additional magnetic bias direction and size B0；
The secondary electron emission characteristic parameter includes maximum secondary electron emission coefficiency δ during electronics vertical incidencemax、δmaxIt is right
The electron impact ENERGY E answeredmax, secondary electron yield be 1 when corresponding minimum electron impact ENERGY Emin。
10. a kind of anti-micro discharge design method of high-power circulator according to claim 8, it is characterised in that：It is described
The physical dimension of circulator includes port width w, the cavity height h of metallic cavity (1), the radius of ferrite gyromagnet substrate (2)
r1, height h1, the radius r of medium neck (3)0, height hr, the radius r of detent (4)0, height h0, metal matching platform (5)
Radius r2, height h2。
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Cited By (15)
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| CN107946703A (en) * | 2017-11-20 | 2018-04-20 | 北京无线电测量研究所 | A kind of waveguide junction type ferrite switch of high heat conduction medium |
| CN108521002A (en) * | 2018-03-30 | 2018-09-11 | 四川蔚宇电气有限责任公司 | Heavy-power circulator shell and heavy-power circulator |
| CN108767413A (en) * | 2018-04-19 | 2018-11-06 | 西安空间无线电技术研究所 | High-power medium microwave component micro discharge suppressing method based on laser ablation surface treatment |
| CN109216841A (en) * | 2018-09-26 | 2019-01-15 | 西南应用磁学研究所 | Half cavity configuration waveguide junction circulator |
| CN110890866B (en) * | 2019-12-23 | 2023-10-27 | 中国电子科技集团公司第二十九研究所 | Anti-micro discharge method and matching circuit for satellite-borne solid-state power amplifier |
| CN110890866A (en) * | 2019-12-23 | 2020-03-17 | 中国电子科技集团公司第二十九研究所 | Satellite-borne solid-state power amplifier micro-discharge resisting method and matching circuit |
| CN111370952A (en) * | 2020-03-26 | 2020-07-03 | 四川大学 | Signal connection device with micro-discharge inhibiting function |
| CN112736389A (en) * | 2020-12-24 | 2021-04-30 | 北京航空航天大学 | Novel waveguide circulator junction matching structure for realizing large bandwidth and high isolation |
| CN114069179B (en) * | 2022-01-17 | 2023-03-31 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Four-end circulator for high micro-discharge threshold satellite |
| CN114069179A (en) * | 2022-01-17 | 2022-02-18 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Four-end circulator for high micro-discharge threshold satellite |
| CN114374066A (en) * | 2022-01-18 | 2022-04-19 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Circulator for ultra-wideband high-power satellite |
| CN114156621A (en) * | 2022-02-07 | 2022-03-08 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Lumped parameter circulator for communication based on MEMS technology and manufacturing method thereof |
| CN114156621B (en) * | 2022-02-07 | 2022-04-19 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Lumped parameter circulator for communication based on MEMS technology and manufacturing method thereof |
| CN116315546A (en) * | 2022-12-12 | 2023-06-23 | 西安空间无线电技术研究所 | Design method of surface microprotrusion high-power ferrite circulator |
| CN116315546B (en) * | 2022-12-12 | 2024-05-14 | 西安空间无线电技术研究所 | Design method of surface microprotrusion high-power ferrite circulator |
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