CN117937083A - Strip line type quasi-microstrip non-reversible device and implementation method thereof - Google Patents
Strip line type quasi-microstrip non-reversible device and implementation method thereof Download PDFInfo
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- CN117937083A CN117937083A CN202410335294.7A CN202410335294A CN117937083A CN 117937083 A CN117937083 A CN 117937083A CN 202410335294 A CN202410335294 A CN 202410335294A CN 117937083 A CN117937083 A CN 117937083A
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- 230000002441 reversible effect Effects 0.000 title description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 134
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 129
- 239000004020 conductor Substances 0.000 claims abstract description 64
- 238000007747 plating Methods 0.000 claims abstract description 29
- 239000000084 colloidal system Substances 0.000 claims abstract description 21
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005476 soldering Methods 0.000 claims abstract description 8
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- 239000002223 garnet Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 12
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 11
- 238000005530 etching Methods 0.000 claims description 8
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- 239000004332 silver Substances 0.000 claims description 8
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- 230000005672 electromagnetic field Effects 0.000 claims description 5
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- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 claims description 2
- 238000012937 correction Methods 0.000 claims description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 2
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- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 9
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Abstract
The invention discloses a strip line type quasi-microstrip irreversible device and an implementation method thereof, belonging to the field of microwaves. The strip line type quasi-microstrip non-reverser comprises a lower end ceramic ring gyromagnetic ferrite integrated product, a central conductor, an upper end ceramic ring gyromagnetic ferrite integrated product, a magnetic homogenizing sheet and a permanent magnet. In addition, the invention also discloses a realization method of the stripline quasi-microstrip irreversible device, wherein the non-plating surface of the two ceramic ring gyromagnetic ferrite integrated products are bonded with the central conductor through colloid, the magnetic homogenizing sheet is bonded with the permanent magnet through colloid, the plating surface of the lower ceramic ring gyromagnetic ferrite integrated products is welded with three pins of the central conductor through soldering tin, and the plating surface of the upper ceramic ring gyromagnetic ferrite integrated products is welded with the magnetic homogenizing sheet through soldering tin.
Description
Technical Field
The invention belongs to the field of microwaves, and particularly relates to a strip line type quasi-microstrip irreversible device and an implementation method thereof.
Background
Compared with 4G, the 5G is improved in all directions, massive MIMO is used as one of core technologies of the 5G, the limitation that the traditional antenna can only provide horizontal dimension is broken, MIMO in horizontal and vertical directions can be simultaneously realized by introducing a two-dimensional antenna array, the available space dimension of the MIMO is further improved, the MIMO multi-antenna technology is pushed to a higher development stage, and more expanding space is provided for comprehensively improving the performance of a wireless communication system; the size of the antennas used in Massive MIMO has changed greatly, the number of antennas has increased, and the corresponding amount of irreversible devices has also increased, so that each module in the base station has to be miniaturized. Therefore, the demand for microminiaturization and weight reduction is also raised for the non-reversible magnetic ferrite device.
In view of the fact that the traditional surface-mounted irreversible device consists of a metal cavity, a ferrite magnet, a permanent magnet, a central conductor, an inserting core, a medium ring, a compensating plate and the like, the structure is complex, the volume is relatively large, and the weight is relatively large; meanwhile, the assembly design requirement of high precision after miniaturization has slowly restricted the assembly requirement of the irreversible device; secondly, the traditional microstrip irreversible device restricts the power bearing range of the device due to the electromagnetic wave transmission mode, and the traditional surface-mounted irreversible device or the microstrip irreversible device can not meet the actual application requirements of new-generation products.
Disclosure of Invention
The invention aims to provide a stripline quasi-microstrip irreversible device so as to solve the problems in the background technology. The strip line type quasi-microstrip non-reversible device provided by the invention has the characteristics of simple structure, convenience in assembly and convenience in integration.
The invention further aims to provide a realization method of the stripline quasi-microstrip irreversible device.
In order to achieve the above purpose, the present invention provides the following technical solutions: a strip line type quasi-microstrip irreversible device comprises a lower end ceramic ring gyromagnetic ferrite integrated product for generating gyromagnetic effect, a central conductor for conducting electromagnetic waves, an upper end ceramic ring gyromagnetic ferrite integrated product for generating gyromagnetic effect, a uniform magnetic sheet for uniform electromagnetic field and a permanent magnet for providing bias magnetic field; wherein, the central conductor is arranged above the lower end ceramic ring gyromagnetic ferrite integrated product, and the upper end ceramic ring gyromagnetic ferrite integrated product is arranged above the central conductor; a magnetic homogenizing sheet is arranged above the upper ceramic ring gyromagnetic ferrite integrated product, and a permanent magnet is arranged above the magnetic homogenizing sheet; the central conductor is composed of three pins, three resonators, three-terminal impedance matching lines and a structure, and a junction is connected with the three resonators and the three-terminal impedance matching lines and is positioned on a plane; the three harmonic oscillators form an included angle of 120 degrees, the three-terminal impedance matching lines form an included angle of 120 degrees, the three harmonic oscillators and the three-terminal impedance matching lines form an included angle of 60 degrees, the three-terminal impedance matching lines are respectively connected with three pins, the three pins of the central conductor are in signal connection with the three harmonic oscillators and the three junctions through the three-terminal impedance matching lines, and the lower ceramic gyromagnetic ferrite integrated product is provided with three signal pins corresponding to the ends of the three pins of the central conductor; the ends of the three pins of the central conductor are bent to the bottom of the ceramic gyromagnetic ferrite integrated product at the lower end; and the three pins of the central conductor and the three signal pins of the lower ceramic ring gyromagnetic ferrite integrated product form signal transmission through soldering tin welding.
The lower end ceramic gyromagnetic ferrite integrated product and the upper end ceramic gyromagnetic ferrite integrated product are of nested structures, the outer circle part is a ceramic ring with high dielectric constant and high Q value, the inner circle part is garnet ferrite with small line width, the lower end ceramic gyromagnetic ferrite integrated product and the upper end ceramic gyromagnetic ferrite integrated product are plated with silver on one side, and the non-plating surface is contacted with the central conductor during assembly.
In order to save cost and improve efficiency, further, the center conductor is adhered between the non-plating surface of the lower ceramic ring gyromagnetic ferrite integrated product and the upper ceramic ring gyromagnetic ferrite integrated product by adopting an etching process through colloid.
In order to achieve uniform magnetization and optimize system performance, further, the magnetic homogenizing sheets are bonded with the permanent magnets through colloid.
In order to ensure the stability of connection between the pins and the lower-end ceramic gyromagnetic ferrite integrated product, the lower-end ceramic gyromagnetic ferrite integrated product is further provided with three signal pins corresponding to the ends of the three pins, and the plating layer is a gold plating layer or a silver plating layer; the bottom part of the ceramic ring gyromagnetic ferrite integrated product with the three pins of the central conductor positioned at the lower end is a bottom welding point.
In order to facilitate assembly and integration, further, the plating surface of the upper ceramic ring gyromagnetic ferrite integrated product is welded with the magnetic homogenizing sheet through soldering tin.
In order to facilitate welding with the terminal circuit board, further, the ends of the three pins of the central conductor are bent to the bottom of the lower-end ceramic ring gyromagnetic ferrite integrated product, and the three pins are welded with the three signal pins of the lower-end ceramic ring gyromagnetic ferrite integrated product.
In order to facilitate bending of the three pins and adhesion of the lower ceramic ring gyromagnetic ferrite integrated product, the central conductor and the upper ceramic ring gyromagnetic ferrite integrated product, the thickness of the central conductor is not more than 0.03mm, and silver plating and shaping treatment are carried out.
In the invention, further, the implementation method of the stripline quasi-microstrip irreversible device comprises the following steps:
step S1: the center conductor, the even magnetic sheet and the iron-nickel alloy temperature compensation sheet are prepared by adopting an etching process;
step S2: the ceramic ring adopts a nesting process, garnet ferrite is firstly ground into round bars, ceramic powder is coated on the outer wall of the garnet ferrite and the inner wall of a ceramic tube in a double-layer manner, and the ceramic ring is sintered at a high temperature of 1210 ℃, then is sliced, lapped and silver-plated on one side; eliminating air holes at the gap position between the ceramic ring and the garnet ferrite, and preparing a lower-end ceramic ring gyromagnetic ferrite integrated product and an upper-end ceramic ring gyromagnetic ferrite integrated product;
Step S3: etching three signal pins on the plating surface of the lower-end ceramic ring gyromagnetic ferrite integrated product, wherein the three signal pins are semi-elliptical and correspond to the three pins of the central conductor, the signal pins are positioned on the outer circular ceramic ring of the lower-end ceramic ring gyromagnetic ferrite integrated product, and the three signal pins form an included angle of 120 degrees;
Step S4: cutting the permanent magnet into a cylinder;
Step S5: the central conductor is adhered between the lower ceramic ring gyromagnetic ferrite integrated product and the non-plating surface of the upper ceramic ring gyromagnetic ferrite integrated product through colloid;
step S6: bending three pins of the central conductor to bottom signal pins of the lower ceramic ring gyromagnetic ferrite integrated product respectively;
Step S7: welding three pins of the central conductor with the bottom signal pins of the lower-end ceramic ring gyromagnetic ferrite integrated product, and welding the even magnetic sheet with the plating surface of the upper-end ceramic ring gyromagnetic ferrite integrated product;
step S8: the magnetic homogenizing sheet is adhered to the permanent magnet through colloid.
Compared with the prior art, the invention has the beneficial effects that:
1. The center conductor is adhered between the lower ceramic ring gyromagnetic ferrite integrated product and the upper ceramic ring gyromagnetic ferrite integrated product by adopting an etching process, compared with a traditional microstrip irreversible device, the process of silver plating on the front and side surfaces of the lower ceramic ring gyromagnetic ferrite integrated product is omitted, and the process is simple, low in cost and high in reliability;
2. Compared with the traditional metal cavity structure, the invention saves the metal cavity, and simultaneously, three signal pins can be directly printed on a terminal circuit board without separately processing three pins, thereby reducing the cost and improving the efficiency;
3. the lower ceramic ring gyromagnetic ferrite integrated product, the upper ceramic ring gyromagnetic ferrite integrated product and the central conductor and the even magnetic sheet and the permanent magnet are bonded by colloid, so that the working procedures and the cost of an assembly link are greatly saved;
4. The invention can be directly welded on the terminal circuit board by a patch, and reduces impedance mismatch offset errors caused by non-reversible devices and the client terminal circuit board in terms of product performance.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an exploded view of the structure of the present invention.
Fig. 3 is a schematic structural view of a center conductor of the present invention.
FIG. 4 is a schematic diagram of the plating surface of the lower end ceramic gyromagnetic ferrite integrated product of the invention.
Figure 5 is a diagram of an electrical performance implementation of a 10mm embodiment of the present invention.
FIG. 6 is a diagram of an electrical performance implementation of a 7mm embodiment of the present invention.
In the figure: 1-a ceramic ring gyromagnetic ferrite integrated product at the lower end; 2-a center conductor; 3-an upper ceramic ring gyromagnetic ferrite integrated product; 4-homogenizing the magnetic sheet; 5-permanent magnets; 21-pins; 22-harmonic oscillator; 23-impedance matching lines; 24-junction; 11-signal pins.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, a stripline quasi-microstrip non-reciprocal device according to the present invention includes: the electromagnetic field generating device comprises a lower-end ceramic gyromagnetic ferrite integrated product 1 for generating gyromagnetic effect, a central conductor 2 for conducting electromagnetic waves, an upper-end ceramic gyromagnetic ferrite integrated product 3 for generating gyromagnetic effect, a uniform magnetic sheet 4 for uniformly generating electromagnetic field and a permanent magnet 5 for providing bias magnetic field; the central conductor 2 is arranged above the lower-end ceramic ring gyromagnetic ferrite integrated product 1, and the upper-end ceramic ring gyromagnetic ferrite integrated product 3 is arranged above the central conductor; a magnetic homogenizing sheet 4 is arranged above the upper ceramic ring gyromagnetic ferrite integrated product, and a permanent magnet 5 is arranged above the magnetic homogenizing sheet 4.
The lower end ceramic gyromagnetic ferrite integrated product 1 and the upper end ceramic gyromagnetic ferrite integrated product 3 are of nested structures, the outer circle part is a ceramic ring with high dielectric constant and high Q value, the inner circle part is garnet ferrite with small line width, the lower end ceramic gyromagnetic ferrite integrated product and the upper end ceramic gyromagnetic ferrite integrated product are plated with silver on one side, and the non-plating surface is contacted with a central conductor during assembly, so that the conductivity of a non-reversible device is enhanced, and the loss is reduced.
The central conductor 2 is composed of three pins 21, three resonators 22, a three-terminal impedance matching line 23 and a junction 24, wherein the junction 24 is mutually connected with the three resonators 22 and the three-terminal impedance matching line 23 and is positioned on a plane; the three resonators 22 form an included angle of 120 degrees, the three-terminal impedance matching lines 23 form an included angle of 120 degrees, the three resonators 22 and the three-terminal impedance matching lines 23 form an included angle of 60 degrees, the three-terminal impedance matching lines 23 are respectively connected with the three pins 21, the three resonators are identical in size and are in an inverted T shape, the inverted T shape is arranged on a ceramic ring with high dielectric constant and high Q value to compress the whole size, and the size of the resonators is adjusted to achieve the optimal frequency. The three pins 21 of the center conductor are in signal connection with the three resonators 22 and the junctions 24 through three-terminal impedance matching wires 23, the ends of the three pins 21 of the center conductor are bent to the bottom of the lower-end ceramic gyromagnetic ferrite integrated product 1, and the three pins are in signal transmission with the three signal pins 11 of the lower-end ceramic gyromagnetic ferrite integrated product 1 through soldering tin welding.
The lower ceramic ring gyromagnetic ferrite integrated product is provided with three signal pins corresponding to the three pin ends of the central conductor; the three signal pins are semi-elliptic, the signal pins are positioned on the outer circular ceramic ring of the lower ceramic ring gyromagnetic ferrite integrated product, and the three signal pins form an included angle of 120 degrees with each other.
The magnetic homogenizing sheet arranged between the permanent magnet 5 and the upper ceramic ring gyromagnetic ferrite integrated product 3 is round, so that the electromagnetic field applied to the ferrite sheet is more uniform, and the performance of the device can be kept stable when the ambient temperature of the device changes.
The permanent magnet 5 is a cylinder and provides a static magnetic field for the quasi-microstrip irreversible device.
The sizes of the lower ceramic ring gyromagnetic ferrite integrated product 1, the central conductor 2, the upper ceramic ring gyromagnetic ferrite integrated product 3, the magnetic homogenizing sheet 4 and the permanent magnet 5 can be adjusted according to the return loss.
The quasi-microstrip structure of the strip line type quasi-microstrip irreversible device adopts a ceramic gyromagnetic ferrite integrated product with high Q value on the upper part and the lower part of a central conductor to replace the traditional single gyromagnetic ferrite structure, so that when electromagnetic waves are transmitted through an inner conductor and ferrite, gyromagnetic effect is formed, the electromagnetic waves are transmitted along a specific direction, and the structural size and magnetic loss of the product are reduced.
By adopting the technical scheme, the ceramic gyromagnetic ferrite integrated product 1 at the lower end is used as a cavity, the traditional metal cavity is omitted, and meanwhile, the irreversible device can be directly printed on a terminal circuit board without independently processing three signal pins, so that the cost is reduced, and the efficiency is improved.
The non-plating layer surface of the lower ceramic gyromagnetic ferrite integrated product 1 and the upper ceramic gyromagnetic ferrite integrated product 3 are adhered to the center conductor through colloid, and the magnetic homogenizing sheet is adhered to the permanent magnet. The magnetic homogenizing sheet 4 and the permanent magnet 5 are adhered by colloid.
The plating surface of the upper ceramic ring gyromagnetic ferrite integrated product 3 and the magnetic homogenizing sheet 4 are welded by soldering tin.
By adopting the above preferred technical scheme, the three geometric centers are physically aligned through the tool, so that the working procedures and cost of an assembly link are greatly saved, and the product performance consistency is improved.
By adopting the above preferred technical scheme, the non-reversible device of the application is convenient to be welded with the terminal circuit board, and the welding mode of the central conductor 2 depends on the design scheme of the signal of the terminal circuit board.
Preferably, the material of the magnetic homogenizing sheet 4 can be steel or iron-nickel alloy surface silver plating, and the permanent magnet 5 can be samarium cobalt magnetic steel or ferrite permanent magnet.
By adopting the above preferred technical solution, a good surface treatment results in a good stability of the electrical.
Further, an iron-nickel alloy temperature compensation sheet can be added between the magnetic homogenizing sheet 4 and the permanent magnet 5 for temperature correction. The iron-nickel alloy temperature compensation sheet is adhered to the magnetic homogenizing sheet 4 through colloid, and the iron-nickel alloy temperature compensation sheet is adhered to the permanent magnet 5 through colloid.
Further, the implementation method of the stripline quasi-microstrip non-reversible device provided by the invention is used for implementing the stripline quasi-microstrip non-reversible device, and comprises the following steps:
Step S1: the center conductor, the even magnetic sheet and the iron-nickel alloy temperature compensation sheet are prepared by adopting an etching process, so that the precision is high, the monomers are connected in a bridging way, the consistency is good, and the mass production is facilitated;
Step S2: the ceramic ring adopts a nesting process, garnet ferrite is firstly ground into round bars, ceramic powder is coated on the outer wall of the garnet ferrite and the inner wall of a ceramic tube in a double-layer manner, and the ceramic ring is sintered at a high temperature of 1210 ℃, then is sliced, lapped and silver-plated on one side; eliminating air holes at the gap position between the ceramic ring and the garnet ferrite, and preparing a lower-end ceramic ring gyromagnetic ferrite integrated product and an upper-end ceramic ring gyromagnetic ferrite integrated product; through the elimination of the air holes at the gap positions between the ceramic ring and the ferrite, the continuity of electromagnetic waves in the transmission of the ceramic ring and the ferrite is increased;
Step S3: etching three signal pins on the plating surface of the lower-end ceramic ring gyromagnetic ferrite integrated product, wherein the three signal pins are semi-elliptical and correspond to the three pins of the central conductor, the signal pins are positioned on the outer circular ceramic ring of the lower-end ceramic ring gyromagnetic ferrite integrated product, and the three signal pins form an included angle of 120 degrees;
Step S4: cutting the permanent magnet into a cylinder;
Step S5: the central conductor is adhered between the lower ceramic ring gyromagnetic ferrite integrated product and the non-plating surface of the upper ceramic ring gyromagnetic ferrite integrated product through colloid;
step S6: bending three pins of the central conductor to bottom signal pins of the lower ceramic ring gyromagnetic ferrite integrated product respectively;
Step S7: welding three pins of the central conductor with the bottom signal pins of the lower-end ceramic ring gyromagnetic ferrite integrated product, and welding the even magnetic sheet with the plating surface of the upper-end ceramic ring gyromagnetic ferrite integrated product;
step S8: the magnetic homogenizing sheet is adhered to the permanent magnet through colloid.
In summary, the central conductor 2 is arranged above the lower-end ceramic gyromagnetic ferrite integrated product 1, the upper-end ceramic gyromagnetic ferrite integrated product 3 is arranged above the central conductor, the central conductor 2, the lower-end ceramic gyromagnetic ferrite integrated product 1 and the upper-end ceramic gyromagnetic ferrite integrated product 3 are bonded through colloid, and compared with the traditional microstrip irreversible device, the silver plating process on the front surface and the side surface of the lower-end ceramic gyromagnetic ferrite integrated product 1 is omitted, and the process is simple, low in cost and high in reliability; compared with the traditional metal cavity structure, the invention saves the metal cavity by taking the lower ceramic ring gyromagnetic ferrite integrated product 1 as the cavity, and simultaneously, three signal pins 11 can be directly printed on a terminal circuit board without separately processing the three signal pins, thereby reducing the cost and improving the efficiency; the lower ceramic ring gyromagnetic ferrite integrated product, the upper ceramic ring gyromagnetic ferrite integrated product and the central conductor and the even magnetic sheet and the permanent magnet are bonded by colloid, so that the working procedures and the cost of an assembly link are greatly saved; the invention can be directly welded on the terminal circuit board by a patch, and reduces impedance mismatch offset errors caused by non-reversible devices and the client terminal circuit board in terms of product performance.
Compared with the traditional irreversible device, the irreversible device has the advantages of 30-40% weight reduction, about 50% part reduction, about 30% process reduction, about 50% thickness reduction, 2.5 times improvement of production efficiency, about 35% energy consumption reduction and about 50% cost reduction. As shown in the figures 5-6, when the radio frequency signal clockwise or anticlockwise transmission is realized, the 10mm product is realized at the center frequency of 2.6GHz, the return loss (S11, S22) is less than or equal to-22 dB, the forward loss (S21) is more than or equal to-0.22 dB, the isolation (S12) is less than or equal to-22 dB, the 7mm product is realized at the center frequency of 2.6GHz, the return loss (S11, S22) is less than or equal to-21 dB, the forward loss (S21) is more than or equal to-0.25 dB, the isolation (S12) is less than or equal to-21 dB, and the characteristics of good performance and the like are realized.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the invention, and the scope of the invention should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (9)
1. A stripline quasi-microstrip non-reciprocal device comprising: the magnetic field generating device comprises a lower-end ceramic gyromagnetic ferrite integrated product for generating gyromagnetic effect, a central conductor for conducting electromagnetic waves, an upper-end ceramic gyromagnetic ferrite integrated product for generating gyromagnetic effect, a uniform magnetic sheet for uniformly generating an electromagnetic field and a permanent magnet for providing a bias magnetic field; wherein, the central conductor is arranged above the lower end ceramic ring gyromagnetic ferrite integrated product, and the upper end ceramic ring gyromagnetic ferrite integrated product is arranged above the central conductor; a magnetic homogenizing sheet is arranged above the upper ceramic ring gyromagnetic ferrite integrated product, and a permanent magnet is arranged above the magnetic homogenizing sheet; the central conductor is composed of three pins, three resonators and three-terminal impedance matching lines and a structure; one junction is connected with three resonators and three-terminal impedance matching lines and is positioned on a plane, the three resonators form an included angle of 120 degrees, the three-terminal impedance matching lines form an included angle of 120 degrees, the three resonators and the three-terminal impedance matching lines form an included angle of 60 degrees, the three-terminal impedance matching lines are respectively connected with three pins, and the three pins of the central conductor form signal connection with the three resonators and the junction through the three-terminal impedance matching lines; the lower ceramic ring gyromagnetic ferrite integrated product is provided with three signal pins corresponding to the three pin ends of the central conductor; the ends of the three pins of the central conductor are bent to the bottom of the ceramic gyromagnetic ferrite integrated product at the lower end; and the three pins of the central conductor and the three signal pins of the lower ceramic ring gyromagnetic ferrite integrated product form signal transmission through soldering tin welding.
2. The stripline quasi-microstrip non-reciprocal device of claim 1 wherein: the lower end ceramic gyromagnetic ferrite integrated product and the upper end ceramic gyromagnetic ferrite integrated product are of nested structures, the outer circle part is a ceramic ring with high dielectric constant and high Q value, the inner circle part is garnet ferrite with small line width, the lower end ceramic gyromagnetic ferrite integrated product and the upper end ceramic gyromagnetic ferrite integrated product are plated with silver on one side, and the non-plating surface is contacted with the central conductor during assembly.
3. A stripline quasi-microstrip non-reciprocal device as claimed in claim 2, wherein: the lower ceramic gyromagnetic ferrite integrated product and the non-plating surface of the lower ceramic gyromagnetic ferrite integrated product are adhered with the central conductor through colloid; the magnetic homogenizing sheet is adhered to the permanent magnet through colloid.
4. A stripline quasi-microstrip non-reciprocal device as claimed in claim 2, wherein: the plating surface of the upper ceramic ring gyromagnetic ferrite integrated product is welded with the magnetic homogenizing sheet through soldering tin.
5. The stripline quasi-microstrip non-reciprocal device of claim 1 wherein: the magnetic homogenizing sheet is made of steel or silver-plated on the surface of iron-nickel alloy, and the permanent magnet is made of samarium-cobalt magnetic steel or ferrite permanent magnet.
6. A stripline quasi-microstrip non-reciprocal device as claimed in claim 2, wherein: the three signal pins of the lower-end ceramic ring gyromagnetic ferrite integrated product are positioned on the outer circular ceramic ring of the lower-end ceramic ring gyromagnetic ferrite integrated product, and the three signal pins form an included angle of 120 degrees with each other.
7. The stripline quasi-microstrip non-reciprocal device of claim 1 wherein: an iron-nickel alloy temperature compensation sheet is added between the magnetic homogenizing sheet and the permanent magnet for temperature correction.
8. The stripline quasi-microstrip non-reciprocal device of claim 7 wherein: the iron-nickel alloy temperature compensation sheet is adhered to the magnetic homogenizing sheet through colloid, and the iron-nickel alloy temperature compensation sheet is adhered to the permanent magnet through colloid.
9. The method for implementing a stripline quasi-microstrip non-reciprocal device as claimed in any one of claims 1-8, comprising the steps of:
step S1: the center conductor, the even magnetic sheet and the iron-nickel alloy temperature compensation sheet are prepared by adopting an etching process;
step S2: the ceramic ring adopts a nesting process, garnet ferrite is firstly ground into round bars, ceramic powder is coated on the outer wall of the garnet ferrite and the inner wall of a ceramic tube in a double-layer manner, and the ceramic ring is sintered at a high temperature of 1210 ℃, then is sliced, lapped and silver-plated on one side; eliminating air holes at the gap position between the ceramic ring and the garnet ferrite, and preparing a lower-end ceramic ring gyromagnetic ferrite integrated product and an upper-end ceramic ring gyromagnetic ferrite integrated product;
Step S3: etching three signal pins on the plating surface of the lower-end ceramic ring gyromagnetic ferrite integrated product, wherein the three signal pins are semi-elliptical and correspond to the three pins of the central conductor, the signal pins are positioned on the outer circular ceramic ring of the lower-end ceramic ring gyromagnetic ferrite integrated product, and the three signal pins form an included angle of 120 degrees;
Step S4: cutting the permanent magnet into a cylinder;
Step S5: the central conductor is adhered between the lower ceramic ring gyromagnetic ferrite integrated product and the non-plating surface of the upper ceramic ring gyromagnetic ferrite integrated product through colloid;
step S6: bending three pins of the central conductor to bottom signal pins of the lower ceramic ring gyromagnetic ferrite integrated product respectively;
Step S7: welding three pins of the central conductor with the bottom signal pins of the lower-end ceramic ring gyromagnetic ferrite integrated product, and welding the even magnetic sheet with the plating surface of the upper-end ceramic ring gyromagnetic ferrite integrated product;
step S8: the magnetic homogenizing sheet is adhered to the permanent magnet through colloid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410335294.7A CN117937083A (en) | 2024-03-22 | 2024-03-22 | Strip line type quasi-microstrip non-reversible device and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410335294.7A CN117937083A (en) | 2024-03-22 | 2024-03-22 | Strip line type quasi-microstrip non-reversible device and implementation method thereof |
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