CN110070973A - A kind of high speed YIG bulk bandstop filter - Google Patents
A kind of high speed YIG bulk bandstop filter Download PDFInfo
- Publication number
- CN110070973A CN110070973A CN201910529653.1A CN201910529653A CN110070973A CN 110070973 A CN110070973 A CN 110070973A CN 201910529653 A CN201910529653 A CN 201910529653A CN 110070973 A CN110070973 A CN 110070973A
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- magnetic circuit
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- yig
- high speed
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- 230000005291 magnetic effect Effects 0.000 claims abstract description 78
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 238000001465 metallisation Methods 0.000 claims abstract description 11
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 2
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 239000004020 conductor Substances 0.000 description 6
- 238000003475 lamination Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005350 ferromagnetic resonance Effects 0.000 description 5
- 239000011324 bead Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F2027/348—Preventing eddy currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of high speed YIG bulk bandstop filters, belong to microwave magnetics devices field, including magnetic circuit, magnet exciting coil and radio frequency resonant circuits mask chamber, the magnetic circuit is blocky magnetic circuit, the bulk magnetic circuit includes upper magnetic circuit and lower magnetic circuit symmetrical above and below, and the material of the bulk magnetic circuit is the iron-nickel alloy that electricalresistivityρ is 0.2~0.4, Hc is 1.2~15A/m；The radio frequency resonant circuits mask chamber is the structure of nonmetallic materials matrix outer cladding metallization coating, the radio frequency resonant circuits mask chamber is provided with several orthogonal holes, it is described metallization coating with a thickness of 0.005~0.01mm, the number of ampere turns of the magnet exciting coil is 700~1200 circles, coil line footpath Φ is 0.25~0.5mm, coil height is 10~25mm, and coil outer diameter Φ is 25~45mm；The present invention is able to carry out the broadband technology covering of 6~18GHz frequency range, and significantly reduce volume and weight, significantly improve tuned speed, inhibited for interference signal, thus the effective protection normal work of electronics.
Description
Technical field
The present invention relates to microwave magnetics devices field more particularly to a kind of high speed YIG bulk bandstop filters.
Background technique
Electromagnetic signal is increasingly sophisticated to the interference of communication apparatus and fine measuring instrument.YIG bandstop filter is as microwave
The core devices of front end can be searched for automatically in intensive complicated numerous signals, track, inhibit interference signal, for protection electricity
The normal work of sub- equipment plays very crucial effect.
YIG bandstop filter is realized and is absorbed in the form of plural serial stage resonance coupled structure based on ferromagnetic resonance principle
The trap function of formula.Here its working principle is sketched so that monocycle couples bandstop filter as an example: as shown in Figure 1, resonance bead
It is placed in the middle of coupling ring, Z-direction adds external magnetic field He.When the microwave frequency ω of input and the magnetic moment M of resonance bead are around outer magnetic
The frequencies omega of field He precession0Inconsistent i.e. ω is not equal to ω0When, ferromagnetic resonance, microwave coupling system do not occur for microwave coupling system
It is in pass-through state in working frequency range, the microwave signal of input is transmitted from A to B.When ω is equal to ω0When, microwave coupling system occurs
Ferromagnetic resonance, forming coupling to absorb response is stopband response.Since the magnetic field strength of certain value only corresponds to one of microwave signal
Frequency, that is, the microwave signal for meeting resonance condition frequency could occur ferromagnetic resonance by system and be absorbed, to play
The effect of trap, when changing the size of external magnetic field, the microwave signal frequency of institute's RESONANCE ABSORPTION is also changed correspondingly, therefore can be referred to as
Magnetic tuning.This is the resonance and coupling basic principle of magnetic tuning YIG bandstop filter.Due to magnetic field strength and ferromagnetic resonance frequency
It is substantially proportional, it is practical when changing external magnetic field to be also achieved that frequency tuning.
Currently, YIG bandstop filter mainly includes magnetic circuit, radio frequency resonant coupling circuit and magnet exciting coil etc..YIG band resistance filter
Wave device is adjusted by the field coil current assembled in magnetic circuit realizes that magnetizing field height changes, and realizes echo signal in frequency range
Interior tuning, inhibits interference signal.
Since tuning range is wide, straight-through loss is small, rejection band depth is deep, linearity of tuning degree is good, compared to other technological approaches
Speech should be combined the inhibition interference letter that could be completed using the achievable script of YIG bandstop filter by numerous switch filter arrays
Number function, and the global index of electronics can be increased substantially.
YIG bandstop filter is while having the above advantages, it may have many disadvantages, comprising: speed is slow, volume
Greatly, weight weight.This is primarily due to during filter tuner, since electromagnetic induction will generate sense inside conductor, magnetic conductor
Raw electric current, according to Joule-Lenz's law, the magnetic flux that this electric current generates is by the flux change generated with outfield on the contrary, and this
Electric current is closed in conductor, magnetic conductor, is referred to as vortexed.Vortex will revolt the effect in outfield, hinder the conduction and magnetic conductor of conductor
Magnetization.Since the presence of vortex limits YIG bandreject filtering so that the foundation of tuning magnetic field H lags behind the electric current A of output
The tuned speed of device.In addition, for magnet exciting coil there are biggish inductance, the inductance of syntonizing coil is also to influence tuned speed in magnetic circuit
Important factor.
In addition, the high speed of electronics, miniaturization have become necessarily to become with the fast development of modern electronic technology
Gesture, high speed, the YIG bandstop filter demand of miniaturization are just increasingly urgent.
In conclusion the shortcomings that tradition YIG bandstop filter is: magnetic structure is common, in terms of reducing vortex not into
Row targetedly designs；Inductance optimized design is not carried out to excitation coil, coil inductance is bigger than normal, therefore YIG bandreject filtering
The tuned speed of device is slow.Or lamination magnetic structure is used in order to improve tuned speed to cut off vortex, as shown in Fig. 2,
But lamination magnetic circuit machinability, product productibility and poor reliability, and volume, weight are bigger than normal, are unable to satisfy electronics
The wilderness demand increasingly urgent to high speed YIG tuning device.
Summary of the invention
The object of the invention is that a kind of high speed YIG bulk bandstop filter is provided, to solve the above problems.
To achieve the goals above, the technical solution adopted by the present invention is that it is such: a kind of high speed YIG bulk bandstop filter,
Including the magnet exciting coil and radio frequency resonant circuits mask chamber inside magnetic circuit, the magnetic circuit, the magnetic circuit is blocky magnetic circuit, described piece
Shape magnetic circuit includes upper magnetic circuit interconnected and lower magnetic circuit, and the upper magnetic circuit and lower magnetic circuit are in upper and lower symmetrical structure, and described piece
The material of shape magnetic circuit is iron-nickel alloy, and the electricalresistivityρ of the iron-nickel alloy is 0.2~0.4, Hc is 1.2~15A/m.
The present invention uses the blocky iron-nickel alloy of high resistivity ρ, low Hc for magnetic circuit material, and is created to magnetic structure
The low vortex optimization design of new property, significantly reduces eddy-current loss power in magnetic circuit, does not carry out vortex optimization design compared to tradition
Magnetic circuit, the bandstop filter of above structure can reduce eddy-current loss power about 40%；It is compared with traditional lamination magnetic circuit, it is above-mentioned
The magnetic circuit of structure is more excellent in terms of machinability, productibility and reliability, is substituted and as shown in Figure 2 is closed by conventional iron nickel with this
The magnetic circuit that golden lamination is constituted.
As a preferred technical scheme: the radio frequency resonant circuits mask chamber is the metallization of nonmetallic materials matrix outer cladding
The structure of coating, the radio frequency resonant circuits mask chamber are provided with several orthogonal holes, the metallization coating with a thickness of
0.005~0.01mm.
Present invention preferably employs multiple orthogonal holes of the processed formation of metallizing again of polyimides non-metallic matrix material
Resonance shielding cavity is reduced vortex to a certain extent, using shielding cavity of the invention by controlling its metallization thickness of coating
It is reduced by about 5% than the eddy-current loss power of traditional shielding cavity.
As further preferred technical solution: it is described metallization coating with a thickness of 0.007~0.008mm.
The metal layer thickness of 0.007~0.008mm can take into account the firmness and vortes interference of coating.
As a preferred technical scheme: the number of ampere turns of the magnet exciting coil is 700~1200 circles, and coil line footpath Φ is 0.25
~0.5mm, coil height are 10~25mm, and coil outer diameter Φ is 25~45mm.
It is reasonably tuned according to the working frequency etc. of device by the line footpath, height, outer diameter of optimization design coil
Coil parameter improves the tuned speed of filter to significantly reduce line packet inductance, specifically, traditional inductance is about
300mH, tuned speed about 3ms/GHz, use that " number of ampere turns for 700~1200 circles, coil line footpath Φ is 0.25~0.5mm, coil
Height is 10~25mm, and coil outer diameter Φ is 25~45mm " inductance about 180mH, tuned speed 1.5ms/GHz afterwards,.
As further preferred technical solution: the number of ampere turns of the magnet exciting coil be 900 circles, coil height 25mm,
Coil outer diameter Φ is 32m.
Inductance can be further reduced to about 70mH, and tuned speed can be further improved to about 600 μ s/GHz.
Line footpath, height, outer diameter parameters are optimized further according to the classical inductance formula of coil, so that coil inductance is most
It is small.
As a preferred technical scheme: the upper magnetic circuit is connected with lower magnetic circuit using screw.
Compared with the prior art, the advantages of the present invention are as follows: high speed YIG bulk bandstop filter of the invention, Neng Goujin
The broadband technology of row 6~18GHz frequency range covers, and significantly reduces, reduces volume and weight, specifically, tradition YIG is filtered
Wave body product is about 55 × 55 × 50mm3, weight about 950g；High speed YIG bulk bandstop filter of the invention is about 35.5 ×
35.5×35.5mm3, weight about 350g；Tuned speed is significantly improved, specifically, traditional YIG filter tuned speed is about
3ms/GHz；High speed YIG lump zone resistance filter tuner speed highest of the invention can achieve about 600 μ s/GHz, realize
The high speed frequency sweep of YIG filter, inhibited for interference signal, thus the effective protection normal work of electronics.
Detailed description of the invention
Fig. 1 is YIG bandstop filter basic functional principle figure；
Fig. 2 is traditional lamination magnetic structure schematic diagram；
Fig. 3 is the magnetic structure schematic diagram of the embodiment of the present invention 1；
Fig. 4 is the metallization radio frequency resonant coupling circuit shielding cavity schematic diagram of the embodiment of the present invention 1；
Fig. 5 is the low inductance magnet exciting coil schematic diagram of the embodiment of the present invention 1；
Fig. 6 is the YIG bandstop filter schematic diagram of internal structure of the embodiment of the present invention 1.
In figure: 11, upper magnetic circuit；12, lower magnetic circuit；2, radio frequency resonant circuits mask chamber；3, magnet exciting coil；4, traditional lamination magnetic
Road；5, conventional coil；6, yig single crystal bead.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Embodiment 1:
A kind of high speed YIG bulk bandstop filter, including the magnet exciting coil 3 and radio frequency resonant circuit inside magnetic circuit, the magnetic circuit
Shielding cavity 2, for the magnetic structure as shown in figure 3, for blocky magnetic magnetic circuit, the bulk magnetic circuit includes upper magnetic circuit 11 interconnected
With lower magnetic circuit 12, the upper magnetic circuit 11 and lower magnetic circuit 12 are in upper and lower symmetrical structure, and are fixedly connected by screw；Described piece
The material of shape magnetic circuit is iron-nickel alloy, and the electricalresistivityρ of the iron-nickel alloy is 0.4, Hc 5A/m；
2 structure of radio frequency resonant circuits mask chamber is as shown in figure 4, be nonmetallic materials such as polyimide matrix outer cladding metal
Change the structure of coating, the radio frequency resonant circuits mask chamber 2 is provided with several orthogonal holes, the metallization coating with a thickness of
0.007mm；
The number of ampere turns of the magnet exciting coil 3 is 900 circles, and coil line footpath Φ is 0.3mm, coil height 25mm, coil outer diameter Φ
For 32mm；
The resulting YIG bulk bandstop filter of the present embodiment, volume are 35.5 × 35.5 × 35.5mm3, weight about 350g,
About 600 μ s/GHz of its tuned speed.
Embodiment 2:
The electricalresistivityρ of the iron-nickel alloy of the magnetic circuit of the present embodiment is 0.2, Hc 1.2A/m, and the number of ampere turns of magnet exciting coil 3 is 700
Circle, coil line footpath Φ are 0.5mm, and coil height 15mm, coil outer diameter Φ are 25mm, remaining is same as Example 1；
The resulting YIG bulk bandstop filter of the present embodiment, volume are 40 × 40 × 30mm3, weight 550g, tuning
Speed about 2ms/GHz.
Embodiment 3:
The electricalresistivityρ of the iron-nickel alloy of the magnetic circuit of the present embodiment is 0.4, Hc 15A/m, and the number of ampere turns of magnet exciting coil 3 is 1200
Circle, coil line footpath Φ are 0.25mm, and coil height 20mm, coil outer diameter Φ are 45mm, remaining is same as Example 1；
The resulting YIG bulk bandstop filter of the present embodiment, volume are 55 × 55 × 50mm3, weight 800g, tuning
Speed about 3.5ms/GHz.
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 (6)
1. a kind of high speed YIG bulk bandstop filter, including the magnet exciting coil and radio frequency resonant circuit inside magnetic circuit, the magnetic circuit
Shielding cavity, it is characterised in that: the magnetic circuit is blocky magnetic circuit, and the bulk magnetic circuit includes upper magnetic circuit interconnected and lower magnetic
Road, the upper magnetic circuit and lower magnetic circuit are in upper and lower symmetrical structure, and the material of the bulk magnetic circuit is iron-nickel alloy, and the iron nickel closes
The electricalresistivityρ of gold is 0.2~0.4, Hc is 1.2~15A/m.
2. a kind of high speed YIG bulk bandstop filter according to claim 1, it is characterised in that: the radio frequency resonant electricity
Road shielding cavity is the structure of nonmetallic materials matrix outer cladding metallization coating, and the radio frequency resonant circuits mask chamber is provided with number
A orthogonal hole, it is described metallization coating with a thickness of 0.005~0.01mm.
3. a kind of high speed YIG bulk bandstop filter according to claim 2, it is characterised in that: the metallization coating
With a thickness of 0.007~0.008mm.
4. a kind of high speed YIG bulk bandstop filter according to claim 1, it is characterised in that: the magnet exciting coil
Number of ampere turns is 700~1200 circles, and coil line footpath Φ is 0.25~0.5mm, and coil height is 10~25mm, and coil outer diameter Φ is 25
~45mm.
5. a kind of high speed YIG bulk bandstop filter according to claim 4, it is characterised in that: the magnet exciting coil
Number of ampere turns is 900 circles, and coil height 25mm, coil outer diameter Φ are 32m.
6. a kind of high speed YIG bulk bandstop filter according to claim 1, it is characterised in that: the upper magnetic circuit is under
Magnetic circuit is connected using screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910529653.1A CN110070973A (en) | 2019-06-19 | 2019-06-19 | A kind of high speed YIG bulk bandstop filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910529653.1A CN110070973A (en) | 2019-06-19 | 2019-06-19 | A kind of high speed YIG bulk bandstop filter |
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| Publication Number | Publication Date |
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| CN110070973A true CN110070973A (en) | 2019-07-30 |
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ID=67372678
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910529653.1A Pending CN110070973A (en) | 2019-06-19 | 2019-06-19 | A kind of high speed YIG bulk bandstop filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883891A (en) * | 2020-07-17 | 2020-11-03 | 中国电子科技集团公司第九研究所 | High-linearity magnetic circuit structure of YIG band-pass filter |
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|---|---|---|---|---|
| US20110124269A1 (en) * | 2009-07-16 | 2011-05-26 | Mitsuo Tada | Eddy current sensor and polishing method and apparatus |
| CN105823997A (en) * | 2016-05-25 | 2016-08-03 | 杜健军 | Magnetic field generator and magnetic resonance equipment with same |
| CN106252802A (en) * | 2016-09-30 | 2016-12-21 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | YIG band elimination filter based on planarization resonance coupled structure and manufacture method |
| CN108767412A (en) * | 2018-06-25 | 2018-11-06 | 中国电子科技集团公司第四十研究所 | A kind of ultra wide band YIG electrically tunable filter coupled resonance structures based on LTCC |
| CN210223700U (en) * | 2019-06-19 | 2020-03-31 | 西南应用磁学研究所 | High-speed YIG block band elimination filter |
-
2019
- 2019-06-19 CN CN201910529653.1A patent/CN110070973A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110124269A1 (en) * | 2009-07-16 | 2011-05-26 | Mitsuo Tada | Eddy current sensor and polishing method and apparatus |
| CN105823997A (en) * | 2016-05-25 | 2016-08-03 | 杜健军 | Magnetic field generator and magnetic resonance equipment with same |
| CN106252802A (en) * | 2016-09-30 | 2016-12-21 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | YIG band elimination filter based on planarization resonance coupled structure and manufacture method |
| CN108767412A (en) * | 2018-06-25 | 2018-11-06 | 中国电子科技集团公司第四十研究所 | A kind of ultra wide band YIG electrically tunable filter coupled resonance structures based on LTCC |
| CN210223700U (en) * | 2019-06-19 | 2020-03-31 | 西南应用磁学研究所 | High-speed YIG block band elimination filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883891A (en) * | 2020-07-17 | 2020-11-03 | 中国电子科技集团公司第九研究所 | High-linearity magnetic circuit structure of YIG band-pass filter |
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