CN217158591U - Circulator with harmonic suppression - Google Patents
Circulator with harmonic suppression Download PDFInfo
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- CN217158591U CN217158591U CN202220939006.5U CN202220939006U CN217158591U CN 217158591 U CN217158591 U CN 217158591U CN 202220939006 U CN202220939006 U CN 202220939006U CN 217158591 U CN217158591 U CN 217158591U
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Abstract
The utility model provides a circulator with harmonic suppression, which comprises a circulator shell and a microwave filter, wherein a Y-shaped waveguide cavity is arranged in the circulator shell, cylindrical ferrites are respectively arranged at the middle parts of the upper cavity wall and the lower cavity wall at the middle part of the Y-shaped waveguide cavity, the two cylindrical ferrites are symmetrically arranged, and two ends of the Y-shaped waveguide cavity are respectively connected with two waveguide coaxial converters fixedly arranged outside the circulator shell; the microwave filter comprises an interface, a filter shell, a support column and an impedance piece, wherein one end of the impedance piece is arranged in the waveguide coaxial converter, the support column is a hollow cylinder with openings at two ends, the impedance piece is arranged in the support column, one end of the filter shell is fixedly connected with the interface, and the other end of the filter shell is fixedly connected to the waveguide coaxial converter. The utility model provides a circulator realizes the one-way annular transmission of circulator through Y type waveguide cavity and cylinder ferrite, utilizes microwave filter to realize the electromagnetic wave without the loss transmission of dominant frequency, suppresses the harmonic interference, promotes the signal quality of electromagnetic wave transmission.
Description
Technical Field
The utility model relates to a circulator especially relates to a circulator of taking harmonic suppression, belongs to waveguide circulator technical field.
Background
The circulator generally comprises components such as a waveguide cavity and a gyromagnetic ferrite material, has microwave single-direction propagation performance, can enable microwave signals to annularly and unidirectionally propagate among a plurality of ports in a certain direction, utilizes the microwave single-direction propagation performance, and can be applied to a plurality of fields. For example, in a communication satellite transponder system, a circulator may be used for broadband signal splitting; at the rear end of the power amplifier, an isolator is formed by a circulator and a load, reverse isolation of microwave signals is achieved, and the effect of protecting power is achieved.
However, with the rapid development of communication technology, the signal frequency domain becomes more and more crowded, in order to realize the frequency selection for the propagation of the wireless signal communication system, suppress the unnecessary frequency components, and make the main frequency of the microwave transmitted without loss, a circulator capable of suppressing harmonic waves appears on the market, and the suppression of harmonic waves by the circulator determines the quality of the signal to a great extent.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a circulator of band harmonic suppression strengthens the suppression to the harmonic through set up microwave filter in the circulator to solve the circulator among the prior art when transmitting electromagnetic wave signal, harmonic suppression performance is poor, the not good problem of transmission signal quality.
The utility model provides a circulator with harmonic suppression, which comprises a circulator shell, wherein a Y-shaped waveguide cavity is arranged in the circulator shell, cylindrical ferrites are respectively arranged in the middle parts of the upper cavity wall and the lower cavity wall of the Y-shaped waveguide cavity, the two cylindrical ferrites are symmetrical to each other, a gap is arranged between the cylindrical ferrites, two ends of the Y-shaped waveguide cavity are respectively connected with two waveguide coaxial converters fixedly arranged on the circulator shell, the microwave filter is also arranged, the microwave filter comprises an interface, a filter shell, a support column and an impedance piece, wherein one end of the impedance piece is arranged in the waveguide coaxial converter, the support column is a hollow cylinder with openings at two ends, the impedance element is arranged in the support column, one end of the filter shell is fixedly connected with the interface, and the other end of the filter shell is fixedly connected to the waveguide coaxial converter.
In a specific embodiment, preferably, two metal plates are arranged on the circulator shell, the positions of the two metal plates correspond to the positions of the two cylindrical ferrites one to one, magnets with the same size are arranged between the two metal plates and the circulator shell, and the polarities of the two magnets are opposite. Magnets of different polarity provide a constant magnetic bias to the cylindrical ferrite within the circulator housing.
In a specific embodiment, preferably, the two metal plates are respectively provided with a circular groove, and the circular grooves can be pasted with nameplates or special marks, so that the model of the circulator can be conveniently identified.
In a specific embodiment, preferably, a rectangular waveguide port is arranged on the circulator shell, the waveguide port is communicated with the other end of the Y-shaped waveguide cavity, an installation hole is arranged at the edge of the waveguide port, and the waveguide port can be fixedly installed on an external load, so that the installation is convenient.
In a specific embodiment, preferably, the impedance component comprises an impedance metal disk and an impedance conductor rod, the impedance conductor rod vertically penetrates through the center of the impedance metal disk and is fixedly connected with the impedance metal disk, and at least two impedance metal disks are arranged. The impedance metal disc and the impedance conductor rod are coaxial transmission lines with different impedances, so that impedances of different steps are formed, and the function of low-pass filtering can be realized.
In a particular embodiment, preferably, said resistive metal discs are provided in three. The three impedance metal discs form three impedances with different steps, and the low-pass filtering effect is good.
In a specific embodiment, preferably, the support column is made of tetrafluoroethylene medium material. The tetrafluoroethylene has strong electrical insulation, good stability and low dielectric loss rate, and can reduce the loss in the process of electromagnetic wave propagation when being used in a microwave filter.
In a particular embodiment, preferably, the interface is a coaxial interface. The coaxial interface is used for connecting external equipment, and has wide application range and convenient use.
In a particular embodiment, preferably, the magnet is samarium cobalt alnico. The samarium cobalt magnetic steel has good stability, strong magnetism, good mechanical property and wide application range.
Compared with the prior art, the utility model, have following advantage and beneficial effect at least:
the utility model provides a pair of circulator of band harmonic suppression, built-in Y type waveguide cavity and cylinder ferrite for guarantee the normal annular transmission of circulator transmission electromagnetic wave, be equipped with microwave filter on the circulator moreover, strengthened the circulator and restrained the harmonic of electromagnetic wave conduction in-process of input or output, can make the electromagnetic dominant frequency lossless transmission, suppress the interference as far as possible, promoted the quality of signal, and effectual promotion electromagnetic wave transmission system's performance. And the microwave filter has simple structure, easy processing and convenient operation when being externally connected with other equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of the interior of a circulator with harmonic suppression provided by the present invention;
FIG. 2 is an external elevation view of a circulator with harmonic suppression provided by the present invention;
FIG. 3 is a top view of a circulator with harmonic suppression provided by the present invention;
fig. 4 is a schematic diagram of an external structure of a circulator with harmonic suppression according to the present invention.
The device comprises a circulator shell, a waveguide coaxial converter (11), a waveguide port (12), a Y-shaped waveguide cavity (13), a cylindrical ferrite (14), a metal plate (15), a magnet (16), a mounting hole (17), a circular groove (18), a microwave filter (2), a 21 interface, a filter shell (22), a support column (23), an impedance component (24), an impedance metal disc (241) and an impedance conductor rod (242).
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may not be shown in unnecessary detail to avoid obscuring the examples.
The utility model provides a circulator of band elimination harmonic, including circulator casing 1, be equipped with Y type waveguide cavity 13 in circulator casing 1, cavity wall's middle part is equipped with cylinder ferrite 14 respectively about Y type waveguide cavity 13, two cylinder ferrite 14 mutual symmetries, the clearance has between the cylinder ferrite 14, Y type waveguide cavity 13 both ends wherein are connected with two fixed waveguide coaxial converters 11 of arranging on circulator casing 1 in respectively, still include microwave filter 2, microwave filter 2 includes interface 21, filter housing 22, support column 23 and impedance piece 24, 24 one end of impedance piece inserts in waveguide coaxial converter 11, support column 23 is both ends open-ended hollow cylinder, impedance piece 24 is arranged in support column 23, 1 one end fixed connection interface 21 of filter housing, other end fixed connection is on waveguide coaxial converter 11. Referring to fig. 1 and 2, the filter housing 1 is i-shaped, and may be cylindrical, which are all within the protection scope of the present invention. Referring to fig. 1, two microwave filters 2 are provided, the two microwave filters 2 can be used as an output port or an input port at will, the selectable range is wide, the use is convenient, and the microwave filters 2 can suppress unnecessary electromagnetic wave frequency components, so that the main frequency is transmitted without loss, interference is suppressed as much as possible, the quality of electromagnetic wave transmission signals in the circulator is improved, the system performance of the circulator when the circulator is used in combination with other equipment is also improved, the microwave filters 2 are simple in structure, and the microwave filters 2 and the circulator shell 1 are convenient to install and use.
Referring to fig. 1 and 2, the cylindrical ferrites 14 are arranged in a completely symmetrical manner, so that a mismatch due to an angular disparity between the two cylindrical ferrites 14 can be avoided. And two corresponding cylindrical ferrites 14 can ensure the symmetry of upper and lower electromagnetic fields, and improve the power capacity.
Referring to fig. 1 and 2, two metal plates 15 are disposed on the circulator housing 1, the positions of the two metal plates 15 correspond to the positions of the two cylindrical ferrites 14 one by one, magnets 16 with the same size are disposed between the two metal plates 15 and the circulator housing 1, and the polarities of the two magnets 16 are opposite. Referring to fig. 1, the metal plate 15 is a regular triangle metal steel plate, the regular triangle metal steel plate is fixed on the annular housing 1 through screws, the regular triangle metal steel plate is simple to manufacture and convenient to install, and the magnets 16 are oppositely arranged in polarity to enhance the magnetic property of the Y-shaped waveguide cavity in the circulator and also provide constant magnetic bias for the cylindrical ferrite 14 in the circulator housing 1.
Referring to fig. 2, the two metal plates 15 are respectively provided with a circular groove 18, and a nameplate or a special mark can be adhered to the circular groove 18, so that the model of the circulator can be conveniently identified.
Referring to fig. 1 and 2, a rectangular waveguide port 12 is arranged on the circulator shell 1, the waveguide port 12 is communicated with the other end of the Y-shaped waveguide cavity 13, a mounting hole 17 is arranged at the edge of the waveguide port 12, and the waveguide port 12 can be externally mounted on a load, so that the mounting is convenient.
The impedance element 24 includes an impedance metal disc 241 and impedance conductor bars 242, the impedance conductor bars 242 vertically pass through the center of the impedance metal disc 241 and are fixedly connected to the impedance metal disc 241, at least two impedance metal discs 241 are provided, the impedance metal discs 241 and the impedance conductor bars 242 are coaxial transmission lines with different impedances, form different stepped impedances, and can realize the function of low-pass filtering. Referring to fig. 1, the present embodiment is provided with three impedance metal disks 241, which form three stepped impedances, and the low-pass filtering effect is good.
Preferably, the supporting posts 23 are made of tetrafluoroethylene dielectric material, the tetrafluoroethylene dielectric material has strong electrical insulation, good stability and low dielectric loss rate, and when used in the microwave filter 2, the loss in the process of electromagnetic wave propagation can be reduced.
Preferably, the support 23 is a hollow cylinder. The supporting piece 23 plays a role in supporting, insulating and insulating heat inside the microwave filter 2, and the hollow cylinder is simple to manufacture and convenient to install.
The interface 21 is a coaxial interface, the coaxial interface is used for connecting external equipment, and the coaxial interface has a wide application range and is convenient to use.
Preferably, the magnet 16 is samarium cobalt magnet steel, and samarium cobalt magnet steel is good in stability, strong in magnetism, good in mechanical property and wide in application range.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: modifications may be made to the embodiments described above, or equivalents may be substituted for some of the features described. Such modifications or substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (9)
1. The utility model provides a take circulator of harmonic suppression, includes circulator casing (1), be equipped with Y type waveguide cavity (13) in circulator casing (1), the middle part of cavity wall is equipped with cylindrical ferrite (14) respectively about Y type waveguide cavity (13), two cylindrical ferrite (14) symmetry each other, have the clearance between cylindrical ferrite (14), Y type waveguide cavity (13) wherein both ends are arranged in with fixed two coaxial converters (11) of waveguide on circulator casing (1) are connected its characterized in that respectively: still include microwave filter (2), microwave filter (2) are including interface (21), filter casing (22), support column (23) and impedance piece (24), impedance piece (24) one end is arranged in waveguide coaxial converter (11), support column (23) are both ends open-ended hollow cylinder, impedance piece (24) are arranged in support column (23), filter casing (22) one end fixed connection interface (21), other end fixed connection be in on the waveguide coaxial converter (11).
2. A circulator with harmonic suppression as claimed in claim 1, wherein: be equipped with two metal sheets (15) on circulator casing (1), the position of two metal sheets (15) respectively with two the position one-to-one of cylinder ferrite (14), two metal sheet (15) with be equipped with respectively between circulator casing (1) the magnet (16) that the size is the same, two the polarity of magnet (16) is opposite.
3. A circulator with harmonic suppression as claimed in claim 2, wherein: circular grooves (18) are respectively arranged on the two metal plates (15).
4. A circulator with harmonic suppression as claimed in claim 1, wherein: the circulator shell (1) is provided with a rectangular waveguide port (12), the waveguide port (12) is communicated with the other end of the Y-shaped waveguide cavity (13), and the edge of the waveguide port (12) is provided with a mounting hole (17).
5. A circulator with harmonic suppression as claimed in claim 1, wherein: the impedance part (24) comprises impedance metal disks (241) and impedance conductor bars (242), the impedance conductor bars (242) vertically penetrate through the centers of the impedance metal disks (241) and are fixedly connected with the impedance metal disks (241), and at least two impedance metal disks (241) are arranged.
6. The circulator of claim 5 having harmonic rejection, wherein: the impedance metal discs (241) are provided with three.
7. A circulator with harmonic suppression as claimed in claim 1, wherein: the supporting column (23) is made of tetrafluoroethylene dielectric material.
8. A circulator with harmonic suppression as claimed in claim 1, wherein: the interface (21) is a coaxial interface.
9. A circulator with harmonic suppression as claimed in claim 2, wherein: the magnet is samarium cobalt magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220939006.5U CN217158591U (en) | 2022-04-22 | 2022-04-22 | Circulator with harmonic suppression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220939006.5U CN217158591U (en) | 2022-04-22 | 2022-04-22 | Circulator with harmonic suppression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217158591U true CN217158591U (en) | 2022-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220939006.5U Active CN217158591U (en) | 2022-04-22 | 2022-04-22 | Circulator with harmonic suppression |
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| CN (1) | CN217158591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117477197A (en) * | 2023-12-27 | 2024-01-30 | 成都沃特塞恩电子技术有限公司 | Waveguide assembly and microwave apparatus |
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2022
- 2022-04-22 CN CN202220939006.5U patent/CN217158591U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117477197A (en) * | 2023-12-27 | 2024-01-30 | 成都沃特塞恩电子技术有限公司 | Waveguide assembly and microwave apparatus |
| CN117477197B (en) * | 2023-12-27 | 2024-03-26 | 成都沃特塞恩电子技术有限公司 | Waveguide assembly and microwave apparatus |
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