CN117954816A - E-plane double-matching Y-shaped junction waveguide circulator - Google Patents
E-plane double-matching Y-shaped junction waveguide circulator Download PDFInfo
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- CN117954816A CN117954816A CN202410219940.3A CN202410219940A CN117954816A CN 117954816 A CN117954816 A CN 117954816A CN 202410219940 A CN202410219940 A CN 202410219940A CN 117954816 A CN117954816 A CN 117954816A
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- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 27
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 2
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- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
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Abstract
The application is suitable for the technical field of radio frequency and microwave in the field of wireless communication, and provides an E-plane double-matching Y-shaped junction waveguide circulator, which comprises: the cavity, the matching block, the ferrite and the magnetic steel; the center of the cavity is provided with a cavity, and the upper surface and the lower surface of the cavity are provided with Y-shaped matching blocks; the centers of the opposite ends of the two matching blocks are respectively provided with a bulge, and each bulge is respectively provided with a ferrite; the centers of the upper surface and the lower surface of the outer part of the cavity are respectively provided with a piece of magnetic steel; the outer part of the cavity is provided with an upper surface and a lower surface which are opposite, the upper surface is provided with a first table top and a second table top which are arranged in a connecting way, the first table top is adjacent to the center of the upper surface relative to the second table top, and the first table top is higher than the second table top; the outside of the cavity has side surfaces vertically connected to the upper surface and the lower surface; the width of the first mesa has a tendency to increase in a direction near the center of the upper surface. The waveguide circulator provided by the application can widen the bandwidth, improve the power capacity and improve the heat dissipation performance.
Description
Technical Field
The application belongs to the technical field of radio frequency and microwaves in the field of wireless communication, and particularly relates to an E-plane double-matched Y-shaped junction waveguide circulator.
Background
With equipment such as a missile-borne positioning system and an jammer put into a millimeter wave frequency band, a millimeter wave circulator with high performance and low cost becomes a market urgent need. The research and development force of the millimeter wave circulator at present is not as deep and wide as that of an X-band and Ku-band waveguide Y-type circulator, but the importance of the millimeter wave circulator is more and more important along with the development.
The current method for improving the power capacity is generally to change the traditional H-plane waveguide circulator into an E-plane waveguide circulator, but the problem of the characteristic of the E-plane is unavoidable to bring about the condition of sharp bandwidth narrowing, and the heat dissipation is not negligible at the same time aiming at the miniaturized device of the millimeter wave frequency band.
Disclosure of Invention
In order to solve the problem of lacking a high-power and broadband waveguide circulator, the embodiment of the application provides an E-plane double-matched Y-shaped junction waveguide circulator.
The application is realized by the following technical scheme:
In a first aspect, an embodiment of the present application provides an E-plane double-matched Y-junction waveguide circulator, including: the device comprises a cavity with three waveguide ports, two matching blocks, two ferrites and two magnetic steels;
A cavity is arranged in the center of the cavity, and a matching block is arranged on the upper surface and the lower surface of the cavity; wherein the two matching blocks are Y-shaped;
The centers of the opposite ends of the two matching blocks are respectively provided with a bulge, and each bulge is respectively provided with a ferrite;
A piece of magnetic steel is arranged in the center of the upper surface and the lower surface of the outside of the cavity;
The outer part of the cavity is provided with an upper surface and a lower surface which are opposite, the upper surface is provided with a first table top and a second table top which are arranged in a connecting way, the first table top is adjacent to the center of the upper surface relative to the second table top, and the first table top is higher than the second table top;
the outside of the cavity has a side surface that is perpendicularly connected between the upper surface and the lower surface; the width of the first mesa has an increasing tendency in a direction approaching the center of the upper surface.
In some embodiments, the first mesa comprises three first sub-mesas, one ends of the three first sub-mesas intersect and the intersection constitutes a center point of the first mesa;
the second table top comprises three second sub table tops, and the three second sub table tops are respectively connected with the three first sub table tops.
In some embodiments, two adjacent first sub-mesas are in smooth engagement with each other.
In some embodiments, a groove is formed in the center of each of the upper and lower surfaces of the outer portion of the cavity, and each groove is used for placing the magnetic steel.
In some embodiments, the diameter of the groove is greater than the diameter of the magnetic steel.
In some embodiments, the protrusions on the two matching blocks, the two ferrites, and the two magnetic steels are all cylinders.
In some embodiments, the diameters of the two pieces of magnetic steel are both greater than or equal to the diameters of the two pieces of ferrite;
The diameter of the protrusion is greater than or equal to the diameter of the ferrite.
In some embodiments, the cavity comprises an upper cavity and a lower cavity;
The upper cavity and the lower cavity are positioned by a positioning pin.
In some embodiments, a gap exists between the two ferrites.
In some embodiments, the width and height of the waveguide port of the cavity are both within an error range of-0.01 mm to +0.01mm.
Compared with the related art, the embodiment of the application has the beneficial effects that: the waveguide circulator provided by the embodiment of the application is provided with the double matching structures, so that the bandwidth of the waveguide circulator can be widened, one of the matching structures is provided with the bulge on one surface of the matching block, so that the matching block becomes a secondary matching structure, and the secondary matching structure can widen the bandwidth of the E-plane waveguide circulator under the condition of ensuring the power capacity; the other matching structure is that a boss is arranged on the upper surface of the outer part of the cavity, the width of the first table top has an increasing trend in the direction close to the center of the upper surface, the arrangement also enables the volume of the cavity in the cavity to be increased, and the power capacity is further enlarged. According to the waveguide circulator provided by the application, two ferrites are arranged, so that the heat dissipation capacity is further improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the related technical descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a structure of an E-plane double-matched Y-junction waveguide circulator according to an embodiment of the application;
FIG. 2 is a schematic diagram of a matching block according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of the outside of an E-plane double-matched Y-junction waveguide circulator according to an embodiment of the application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Conventional H-plane waveguide loop device bands are wide but have a small power capacity. The current method for improving the power capacity is generally to change the traditional H-plane waveguide circulator into an E-plane waveguide circulator, but the problem of the characteristic of the E-plane is unavoidable to bring about the condition of sharp bandwidth narrowing, and the heat dissipation is not negligible at the same time aiming at the miniaturized device of the millimeter wave frequency band.
Based on the above problems, the embodiment of the application provides an E-surface double-matching Y-shaped junction waveguide circulator, the power capacity born by the original H surface is improved through an E-surface structure, the bandwidth of the waveguide circulator is widened through the special structure of the cavity of the waveguide circulator and the protrusions arranged on the matching block, and the space is widened, so that the heat dissipation capacity is further improved.
Fig. 1 is a perspective schematic view of a structure of an E-plane double-matched Y-junction waveguide circulator according to an embodiment of the present application, fig. 2 is a schematic view of a structure of a matching block according to an embodiment of the present application, and fig. 3 is a schematic view of an outer portion of the E-plane double-matched Y-junction waveguide circulator according to an embodiment of the present application, and referring to fig. 1 to 3, the waveguide circulator includes: a cavity 1 with three waveguide ports, two matching blocks 2, two ferrites 3 and two magnetic steels 4.
The center of the cavity 1 is provided with a cavity, and the upper surface and the lower surface of the cavity are provided with a matching block 2; wherein, the shape of the two matching blocks 2 is Y-shaped. Reference is made in particular to fig. 2.
The centers of the opposite ends of the two matching blocks 2 are respectively provided with a bulge 5, and each bulge 5 is respectively provided with a ferrite 3.
A piece of magnetic steel 4 is arranged in the center of the upper surface and the lower surface of the outside of the cavity 1.
The exterior of the cavity 1 has opposed upper and lower surfaces 11, 12, the upper surface 11 having first and second lands 111, 112 disposed in engagement, the first land 111 being disposed adjacent a center of the upper surface 11 relative to the second land 112, the first land 111 being disposed higher than the second land 112.
The outside of the chamber 1 has a side surface 13, the side surface 13 being perpendicularly connected between the upper surface 11 and the lower surface 12; the width of the first mesa 111 has a tendency to increase in a direction approaching the center of the upper surface 11.
Wherein, the material of the matching block 2 is metal, and the material of the protrusion 5 on the matching block 2 is also metal. Ferrite 3 may be bonded to boss 5, or otherwise mounted to boss 5, without limitation. The sizes and dimensions of the two magnetic steels 4 are kept consistent.
Alternatively, the first mesa 111 comprises three first sub-mesas, one ends of which intersect and the intersection constitutes a center point of the first mesa 111.
Specifically, two adjacent first sub-table surfaces are in smooth connection.
The second table 112 includes three second sub-tables, which are respectively connected with the three first sub-tables.
Optionally, a groove is respectively arranged in the center of the upper surface and the lower surface of the outer part of the cavity 1, and each groove is respectively used for placing the magnetic steel 4.
The diameter of the groove needs to be larger than the diameter of the magnetic steel 4. For example, when the groove for placing the magnetic steel 4 is processed on the cavity 1, the diameter of the groove needs to be larger than 0.05mm of the diameter of the magnetic steel 4, so that assembly is ensured, the difference between the diameter of the groove and the diameter of the magnetic steel 4 can be set according to actual situations or actual needs, and the difference between the diameter of the groove and the diameter of the magnetic steel 4 is not particularly limited in the application.
Optionally, the protrusions 5, the two ferrites 3 and the two magnetic steels 4 on the two matching blocks 2 are all cylinders.
The diameters of the two magnetic steels 4 are larger than or equal to the diameters of the two ferrites 3; the diameter of the protrusions is larger than or equal to the diameter of the ferrite 3.
Optionally, any adjacent two waveguides are 120 ° near the centerline. Wherein the centerline is a straight line perpendicular to the first sub-mesa of the waveguide ring and passing through the center point of the first mesa 111.
The centers of the matching block 2, the ferrite 3, the magnetic steel 4, and the protrusion 5 on the matching block 2 are all penetrated by the center line.
Optionally, a gap exists between the two ferrites 3.
In the embodiment of the application, taking a millimeter wave waveguide circulator with the diameter of 3mm as an example, the upper surface and the lower surface of a cavity body 1 of the millimeter wave waveguide circulator are respectively provided with a matching block 2, the centers of opposite ends of the two matching blocks 2 are respectively provided with a cylindrical bulge 5, each bulge 5 is respectively provided with one ferrite 3, and a space of 1-2 mm is reserved between the two ferrites 3. The exterior of the cavity 1 has opposed upper and lower surfaces 11, 12, the upper surface 11 having first and second lands 111, 112 disposed in engagement, the first land 111 being adjacent the centre of the upper surface 11 relative to the second land 112, and the first land 111 being 0.2mm higher than the second land 112. The outside of the chamber 1 also has a side surface 13, the side surface 13 being perpendicularly connected between the upper surface 11 and the lower surface 12, and the width of the first mesa 111 has a tendency to increase in a direction approaching the center of the upper surface 11.
It should be understood that the above-mentioned millimeter wave waveguide circulator with 3mm is only an example, and the waveguide circulator provided by the present application can be applied to any waveguide circulator with E-plane or similar matching structure, and is not limited to the above-mentioned millimeter wave waveguide circulator.
The waveguide port of the waveguide circulator provided by the application is an E surface, so that the power capacity of the waveguide circulator is improved. The waveguide circulator is provided with the double matching structures, so that the bandwidth of the waveguide circulator can be widened, one of the matching structures is that the protrusion 5 is arranged on one surface of the matching block 2, so that the matching block 2 is a two-stage matching structure, and the two-stage matching structure can widen the bandwidth of the E-plane waveguide circulator under the condition of ensuring the power capacity; the other matching structure is to provide a boss on the upper surface 11 of the outside of the cavity, and the width of the first mesa 111 has a tendency to increase in the direction approaching the center of the upper surface 11, and this arrangement also causes the volume of the cavity inside the cavity 1 to increase, thereby further expanding the power capacity. The waveguide circulator is provided with two ferrites 3, so that the heat dissipation capacity is further improved.
Optionally, the cavity 1 includes an upper cavity and a lower cavity; the upper cavity and the lower cavity are positioned by a positioning pin.
Alternatively, the error range of the width and the height of the waveguide port of the cavity 1 is-0.01 mm to +0.01mm.
In the embodiment of the application, the upper cavity and the lower cavity can be independently processed when the cavity 1 is processed, then the upper cavity and the lower cavity are positioned by the positioning pin and then fastened by the screw. The fastening of the upper cavity and the lower cavity by the screw is only one mode, and other modes can be selected to fasten the upper cavity and the lower cavity according to actual conditions or actual needs.
During processing, the standard waveguide port is required to be processed according to the standard waveguide port size, so that the error range of the waveguide port after the upper cavity and the lower cavity are assembled is-0.01 mm to +0.01mm. During processing the inside of the cavity 1, a cutter with the diameter of 0.3mm can be used for milling precision processing to ensure the dimensional precision of the inside of the cavity 1 of the waveguide circulator, and during processing, the matching block 2 and the bulge 5 on the matching block 2 also need to have the error range within-0.01 mm to +0.01mm. After the upper cavity, the lower cavity, the corresponding matching block and the protrusions on the matching block are machined, ferrite is assembled to the center of the matching block, then the upper cavity and the lower cavity are assembled and fastened through screws, and finally the magnetic steel 4 is assembled to a groove arranged outside the cavity 1. The waveguide ring is assembled so far, and the waveguide ring can be tested.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. An E-plane double-matched Y-junction waveguide circulator, comprising: the device comprises a cavity with three waveguide ports, two matching blocks, two ferrites and two magnetic steels;
A cavity is arranged in the center of the cavity, and a matching block is arranged on the upper surface and the lower surface of the cavity; wherein the two matching blocks are Y-shaped;
The centers of the opposite ends of the two matching blocks are respectively provided with a bulge, and each bulge is respectively provided with a ferrite;
A piece of magnetic steel is arranged in the center of the upper surface and the lower surface of the outside of the cavity;
The outer part of the cavity is provided with an upper surface and a lower surface which are opposite, the upper surface is provided with a first table top and a second table top which are arranged in a connecting way, the first table top is adjacent to the center of the upper surface relative to the second table top, and the first table top is higher than the second table top;
the outside of the cavity has a side surface that is perpendicularly connected between the upper surface and the lower surface; the width of the first mesa has an increasing tendency in a direction approaching the center of the upper surface.
2. The waveguide circulator of claim 1 wherein said first mesa comprises three first sub-mesas, one end of said three first sub-mesas intersecting and the intersection constituting a center point of said first mesa;
the second table top comprises three second sub table tops, and the three second sub table tops are respectively connected with the three first sub table tops.
3. The waveguide circulator of claim 2 wherein adjacent ones of said first sub-mesas are in rounded engagement with each other.
4. The waveguide circulator of claim 1 wherein a groove is provided in the center of each of the upper and lower surfaces of the outside of said cavity, each groove being for placing said magnetic steel.
5. The waveguide circulator of claim 4 wherein a diameter of said groove is greater than a diameter of said magnetic steel.
6. The waveguide circulator of claim 1 wherein the protrusions on said two matching blocks, said two ferrites and said two magnetic steels are all cylindrical.
7. The waveguide circulator of claim 6 wherein the diameters of said two pieces of magnetic steel are each greater than or equal to the diameters of said two pieces of ferrite;
The diameter of the protrusion is greater than or equal to the diameter of the ferrite.
8. The waveguide circulator of claim 1 wherein said cavity comprises an upper cavity and a lower cavity;
The upper cavity and the lower cavity are positioned by a positioning pin.
9. The waveguide circulator of claim 1 wherein a gap exists between said two ferrites.
10. The waveguide circulator of claim 1 wherein the width and height of the waveguide port of said cavity are both within an error range of-0.01 mm to +0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410219940.3A CN117954816A (en) | 2024-02-28 | 2024-02-28 | E-plane double-matching Y-shaped junction waveguide circulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410219940.3A CN117954816A (en) | 2024-02-28 | 2024-02-28 | E-plane double-matching Y-shaped junction waveguide circulator |
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| Publication Number | Publication Date |
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| CN117954816A true CN117954816A (en) | 2024-04-30 |
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| CN202410219940.3A Pending CN117954816A (en) | 2024-02-28 | 2024-02-28 | E-plane double-matching Y-shaped junction waveguide circulator |
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