CN214154526U - Polarization multiplexing duplex assembly with built-in isolator - Google Patents
Polarization multiplexing duplex assembly with built-in isolator Download PDFInfo
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- CN214154526U CN214154526U CN202023293805.XU CN202023293805U CN214154526U CN 214154526 U CN214154526 U CN 214154526U CN 202023293805 U CN202023293805 U CN 202023293805U CN 214154526 U CN214154526 U CN 214154526U
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Abstract
The utility model discloses a polarization multiplexing duplex component with a built-in isolator, which comprises a cavity plate; a flange plate; an orthogonal mode coupler, a horizontal polarization duplexer, an isolator and a vertical polarization duplexer are arranged in the cavity plate; the isolators are arranged in the transmitting channels of the horizontal polarization duplexer and the vertical polarization duplexer; the orthogonal mode coupler is provided with an E-surface 90-degree waveguide elbow and an H-surface 90-degree waveguide elbow, a vertical polarization port of the orthogonal mode coupler is connected with a common port of the vertical polarization duplexer through the H-surface 90-degree waveguide elbow, and a horizontal polarization port of the orthogonal mode coupler is connected with a common port of the horizontal polarization duplexer and the cavity device through the E-surface 90-degree waveguide elbow. The utility model discloses the common mouthful of duplexer that uses the difference is shut the mode and is connected the both ends mouth and the duplexer of orthomode coupler through the waveguide elbow of different polarizations, ensures that two way duplexer cavitys are in on the same plane, brings very big facility for debugging production.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a microwave communication technical field, in particular to polarization multiplexing duplex subassembly of built-in isolator.
[ background of the invention ]
With the rapid development of mobile communication, the application of high-frequency dual-polarized antenna adopting a transceiving common scheme is more and more widespread, wherein an orthogonal Mode coupler OMT (ortho Mode transmitter) is a key component for realizing the transceiving common dual-polarized antenna, and the OMT is a separate or mixed element for two mutually orthogonal polarized waves, which is an effective method for realizing polarization multiplexing and increasing channel capacity.
The waveguide duplexer is a passive device which isolates a transmitting signal from a receiving signal and ensures that the receiving and the transmitting can work simultaneously, is the key for realizing frequency division multiplexing of a wireless communication system, and along with the higher and higher requirements of the communication system on integration and miniaturization, the combined design and production of the waveguide duplexer and other passive devices become the research heat set of communication equipment suppliers.
The traditional digital microwave receiving and transmitting system structure is mainly characterized in that an antenna waveguide is connected with a common waveguide end of a duplexer in a specific mode, the receiving and transmitting ends of the duplexer are respectively connected with an embedded waveguide isolator, and a flange type waveguide isolator is finally connected with the receiving and transmitting ends of a microwave mainboard in an aligned mode. The disadvantages of this method are:
1. a waveguide isolator is independently added between the duplexer and the microwave main board, the cost of the waveguide isolator is generally over 100 yuan, and the cost of independently purchasing the waveguide duplexer and the waveguide isolator is higher;
2. the waveguide duplexer, the waveguide isolator and the microwave main board are connected and matched, the three are fastened and connected by screws mainly in a laminated structure, and the processing error and the assembly error among the three easily cause the dislocation of a waveguide port during mass production, so that the coaxiality of components is influenced, and particularly in a high-frequency microwave system, the transmission of signals is seriously influenced, and the unsmooth system work is caused.
Duplexer, OMT and waveguide isolator are as discrete device, and the technique is comparatively mature, and its design, production degree of difficulty are not big, nevertheless have a series of shortcomings when combining the use with the three as discrete device, mainly show:
1: the integration level is not high, the system volume is large, and the weight is high.
2: separate procurement results in increased system cost and poor compatibility of devices from different manufacturers.
3: when the three are connected, the matching problem exists, which causes poor return loss and large loss of the components, and further influences the matching of the communication system antenna and the ODU unit, so that the communication quality of the whole system is poor. Therefore, the integrated design and production of the duplexer, the orthogonal mode coupler and the isolator are becoming the development trend of the microwave wireless communication system.
To this end, we propose a polarization multiplexing duplex module with built-in isolator.
[ Utility model ] content
The utility model aims to overcome the defects in the prior art and comprises a cavity plate; a flange plate; an orthogonal mode coupler, a horizontal polarization duplexer, an isolator and a vertical polarization duplexer are arranged in the cavity plate; the isolators are arranged in the transmitting channels of the horizontal polarization duplexer and the vertical polarization duplexer; the orthogonal mode coupler is provided with an E-surface 90-degree waveguide elbow and an H-surface 90-degree waveguide elbow, a vertical polarization port of the orthogonal mode coupler is connected with a common port of the vertical polarization duplexer through the H-surface 90-degree waveguide elbow, and a horizontal polarization port of the orthogonal mode coupler is connected with a common port of the horizontal polarization duplexer and the cavity device through the E-surface 90-degree waveguide elbow; the vertical polarization duplexer, the horizontal polarization duplexer and the isolator are configured to be in the cavity plate and are in the same plane, two ports of the orthogonal mode coupler are connected with the duplexer by using different common port shunting modes of the duplexer through waveguide elbows with different polarizations, two duplexer cavities are ensured to be in the same plane, and great convenience is brought to debugging production.
In order to achieve the above objects/solve the above technical problems, the present invention adopts the following technical solutions: comprises a cavity plate; a flange plate; an orthogonal mode coupler, a horizontal polarization duplexer, an isolator and a vertical polarization duplexer are arranged in the cavity plate; the isolators are arranged in the transmitting channels of the horizontal polarization duplexer and the vertical polarization duplexer; the orthogonal mode coupler is provided with an E-surface 90-degree waveguide elbow and an H-surface 90-degree waveguide elbow, a vertical polarization port of the orthogonal mode coupler is connected with a common port of the vertical polarization duplexer through the H-surface 90-degree waveguide elbow, and a horizontal polarization port of the orthogonal mode coupler is connected with a common port of the horizontal polarization duplexer and the cavity device through the E-surface 90-degree waveguide elbow; the vertically polarized duplexer, the horizontally polarized duplexer, and the isolator are configured to be within the cavity plate and in a same plane.
Optionally, the optical fiber coupler further comprises a waveguide filter arranged in the transmission channels of the horizontal polarization duplexer and the vertical polarization duplexer, and the isolator is connected with the waveguide filter.
Optionally, the load end of the waveguide isolator adopts a wedge-shaped load.
Optionally, ferrite is arranged at the central junction of the waveguide isolator, and the ferrite adopts a single-sided magnetization structure.
Optionally, the magnet setting intracavity at the cavity back is placed in to samarium cobalt magnetism.
Optionally, a rectangular step is arranged in a connecting channel between the waveguide filter and the waveguide outlet.
Optionally, the apparatus further comprises a cover plate for covering the cavity plate.
Optionally, the cover plate is of an integrally formed structure.
Optionally, the cover plate is provided with a mounting hole for fixing with the cavity plate.
Optionally, the cavity plate is provided with a connecting channel for connecting the waveguide filter and the waveguide outlet, and a rectangular step is arranged in the connecting channel.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. two ports of the orthogonal mode coupler are connected with the duplexer by using different common port shunting modes of the duplexer and waveguide elbows with different polarizations, so that two duplexer cavities are ensured to be positioned on the same plane, and great convenience is brought to debugging production.
2. A waveguide filter is arranged in the waveguide filter, so that higher-order modes are effectively restrained, and far-end restraint is improved;
3. the orthogonal mode coupler, the duplexer and the isolator are highly integrated, the size of a communication system is reduced, the weight is reduced, and the cost is reduced.
4. The isolator is internally arranged in the duplexer, so that the structure is more simplified, the system materials are reduced, and the system cost is reduced.
[ description of the drawings ]
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention.
Fig. 1 is a schematic structural diagram of an orthomode coupler of a polarization multiplexing duplex module with an internal isolator according to the present invention.
Fig. 2 is a schematic diagram of an overall structure of a polarization multiplexing duplex module with an internal isolator according to the present invention.
Figure 3 is the utility model provides a pair of polarization multiplexing duplex subassembly of built-in isolator's samarium cobalt magnetism structural schematic.
Fig. 4 is a schematic diagram of a rectangular step structure of a polarization multiplexing duplex module with an internal isolator according to the present invention.
In the figure: 1. an orthogonal mode coupler; 2. e surface 90-degree waveguide elbow; 3. an H-face 90-degree waveguide elbow; 4. a horizontally polarized duplexer; 5. a vertically polarized duplexer; 6. a cavity plate; 7. a cover plate; 8. a flange plate; 9. a waveguide filter; 10. an isolator; 11. a wedge-shaped load; 12. a ferrite; 13. samarium cobalt magnet; 14. a rectangular step.
[ detailed description ] embodiments
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting.
In the description of the present invention, it should be understood that the directional terms or positional relationships indicated are based on the directional terms or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
A polarization multiplexing duplex assembly with built-in isolator comprises a cavity plate 6; the flange 8 is connected with the cavity plate 6; the lower half part of the orthogonal mode coupler 1 is arranged in the flange plate 8, and the upper half part of the orthogonal mode coupler 1 is positioned in the cavity plate 6;
the orthogonal mode coupler 1 adopts a narrow-slit coupling mode to realize polarized signal separation, has a simple and reliable structure, is easy to process, and is easier to integrate compared with the orthogonal mode coupler 1 with a diaphragm inside.
A horizontal polarization duplexer 4, an isolator 10 and a vertical polarization duplexer 5 are arranged in the cavity plate 6;
the isolator 10 is arranged in each transmitting channel of the horizontal polarization duplexer 4 and the vertical polarization duplexer 5;
Referring to fig. 2, a setting groove for placing the orthomode coupler 1 is arranged on the flange 8, and meanwhile, since the flange 8 is connected with the cavity plate 6 and a through groove is arranged in the cavity plate 6, the through groove is used for penetrating through the E-plane 90-degree waveguide elbow 2 and the H-plane 90-degree waveguide elbow 3 and is respectively connected with the common port of the vertical polarization duplexer 5 and the common port of the horizontal polarization duplexer 4, a part of the orthomode coupler 1 placed in the flange 8 also extends into the cavity plate 6.
The vertical polarization duplexer 5, the horizontal polarization duplexer 4 and the isolator 10 are configured to be in the same plane and within the cavity plate 6;
the vertical polarization duplexer 5, the horizontal polarization duplexer 4 and the isolator 10 can be positioned in the cavity plate 6 and on the same plane by using related lathe processing equipment in the processing process, so that the size of the three-dimensional space of each originally isolated component can be reduced to the minimum three-dimensional space as far as possible; the degree of integration is improved;
the waveguide isolator 10 generally adopts a surface treatment mode of conductive oxidation, so that the loss is large, and the loss of the whole consumable materials of the assembly can be reduced under the condition that the cost is not increased basically after the isolator 10 is arranged.
In a further embodiment, the system further comprises a waveguide filter 9 built in the transmission channel of the horizontal polarization duplexer 4 and the vertical polarization duplexer 5, and the isolator 10 is connected with the waveguide filter 9;
the waveguide filter 9 is a 4-order evanescent mode waveguide filter.
In a further embodiment, the load end of the waveguide isolator 10 is provided with a wedge-shaped load 11; the wedge-shaped load can better realize signal power absorption.
In a further embodiment, ferrite 12 is arranged at the central junction of the waveguide isolator 10, the ferrite 12 adopts a single-sided magnetization structure, and samarium-cobalt magnet 13 is arranged in a magnet arrangement cavity on the back of the cavity;
the ferrite 12 functions to achieve the inner placement of the isolator 10 and the samarium cobalt magnet 13 functions to provide a magnetic field to the ferrite 12 to enable the ferrite 12 to achieve the performance of its isolator 10.
In a further embodiment, it further comprises a cover plate 7 for covering the cavity plate 6;
the cover plate 7 is used for covering the cavity plate 6, and the cover plate 7 can cover the cavity plate 6 in the using process;
in a further embodiment, the cover plate 7 is of one-piece construction;
the cover plate 7 may be formed by welding (or other fixing method) a plurality of block parts; or other piecing structures can lead the cover plate 7 to be a whole;
the cover plate 7 is provided with a mounting hole for fixing with the cavity plate 6;
certainly, the cavity plate 6 is also provided with a mounting hole for fixedly connecting with the cover plate 7, the mounting hole arranged on the cavity plate 6 is matched with the mounting hole arranged on the cover plate 7, and the mounting hole are connected into a whole through a fastener and a reflow soldering mode, so that the debugging screws are positioned on the same plane, and great convenience is brought to the subsequent production debugging work; the fastener may be a fastening bolt or a screw.
The waveguide filters 9 of the two duplexers adopt a seven-cavity one-zero structure, and the structure meets the requirements of customers and the near-band index requirements of the duplexers;
the waveguide filter 9 in this embodiment may be a four-way transceiving channel structure.
Referring to fig. 3, the bottom of the cavity plate 6 is provided with a setting groove for accommodating and fixing the flange plate 8; the setting groove and the flange plate 8 are both provided with a fixed mounting hole and a positioning hole (not shown in the figure) which are fixed with each other, and finally the components are fixed by screws through positioning pins.
The utility model is composed of 8 main parts of a cavity plate 6, a cover plate 7 and a flange plate, has simple structure, is easy to process and produce, and is convenient to maintain because the number of each part is not large; the relative reduction in the number of components also reduces the chance of failure between components.
Referring to fig. 4, the cavity plate is provided with a connecting channel for connecting the waveguide filter 9 with the waveguide outlet, and a rectangular step 14 is arranged in the connecting channel for avoiding a customer mounting hole and realizing ideal matching from the waveguide port to the waveguide filter 9;
the waveguide filter 9 may be a evanescent mode waveguide filter, which effectively suppresses higher order modes and improves far-end suppression.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A polarization multiplexing duplex assembly with an isolator inside, comprising a cavity plate; a flange plate;
an orthogonal mode coupler, a horizontal polarization duplexer, an isolator and a vertical polarization duplexer are arranged in the cavity plate;
the isolators are arranged in the transmitting channels of the horizontal polarization duplexer and the vertical polarization duplexer;
the orthogonal mode coupler is provided with an E-surface 90-degree waveguide elbow and an H-surface 90-degree waveguide elbow, a vertical polarization port of the orthogonal mode coupler is connected with a common port of the vertical polarization duplexer through the H-surface 90-degree waveguide elbow, and a horizontal polarization port of the orthogonal mode coupler is connected with a common port of the horizontal polarization duplexer and the cavity device through the E-surface 90-degree waveguide elbow;
the vertically polarized duplexer, the horizontally polarized duplexer, and the isolator are configured to be within the cavity plate and in a same plane.
2. The isolator-embedded polarization multiplexing duplexer assembly of claim 1, further comprising a waveguide filter embedded in the transmit channels of the horizontally polarized duplexer and the vertically polarized duplexer, wherein the isolator is connected to the waveguide filter.
3. The isolator-embedded polarization multiplexing duplex assembly of claim 1 wherein the load end of the isolator is a wedge-type load.
4. The isolator-embedded polarization multiplexing duplex component of claim 1, wherein a ferrite is arranged at the central junction of the waveguide isolator, and the ferrite adopts a single-sided magnetization structure.
5. The isolator-embedded polarization multiplexing duplex assembly of claim 1, wherein samarium cobalt magnet is disposed in a magnet placement cavity on the back of the cavity.
6. The isolator-embedded polarization multiplexing duplex assembly of claim 2 wherein a rectangular step is provided in the connecting channel of the waveguide filter and the waveguide outlet.
7. The isolator-embedded polarization multiplexing duplex assembly of claim 1, further comprising a cover plate for covering the cavity plate.
8. The isolator-embedded polarization multiplexing duplex assembly of claim 7 wherein the cover plate is a unitary formed structure.
9. The isolator-embedded polarization multiplexing duplex assembly of claim 8 wherein the cover plate is configured with mounting holes for securing with the cavity plate.
10. The isolator-embedded polarization multiplexing duplex assembly of claim 1, wherein the cavity plate is provided with a connection channel for connecting the waveguide filter with the waveguide outlet, and the connection channel is provided with a rectangular step therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023293805.XU CN214154526U (en) | 2020-12-30 | 2020-12-30 | Polarization multiplexing duplex assembly with built-in isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023293805.XU CN214154526U (en) | 2020-12-30 | 2020-12-30 | Polarization multiplexing duplex assembly with built-in isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214154526U true CN214154526U (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023293805.XU Active CN214154526U (en) | 2020-12-30 | 2020-12-30 | Polarization multiplexing duplex assembly with built-in isolator |
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| CN (1) | CN214154526U (en) |
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- 2020-12-30 CN CN202023293805.XU patent/CN214154526U/en active Active
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