CN210516954U

CN210516954U - Integrated waveguide circulator

Info

Publication number: CN210516954U
Application number: CN201921977527.4U
Authority: CN
Inventors: 谢宇进; 郑腾洲
Original assignee: Chengdu Tulanda Technology Co ltd
Current assignee: Chengdu Tulanda Technology Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-05-12
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses an integrated waveguide circulator, which comprises an upper cover plate (1), an upper permanent magnet (2), a lower cover plate (5), a lower permanent magnet (6) and a waveguide cavity (7), wherein the waveguide cavity (7) adopts an integrated waveguide cavity, a matching step (8) which is divided into an upper part and a lower part is arranged in the waveguide cavity (7), and an upper ferrite sheet (3) and a lower ferrite sheet (4) are respectively arranged on the matching step (8) at the upper part and the matching step (8) at the lower part; the integrated waveguide cavity structure is adopted, so that the integrated waveguide cavity structure has good reliability, consistency and tightness, the processing cost is effectively reduced, and the integrated waveguide cavity structure can be widely applied.

Description

Integrated waveguide circulator

Technical Field

The utility model relates to a fields such as microwave radio frequency technology, specific theory, integration waveguide circulator.

Background

Waveguide circulators may be used in radar/communication systems to isolate the transmit/receive signals from each other. The microwave power amplifier is mainly used between the output end of a microwave system power amplifier and a load, has the characteristic of unidirectional transmission of electromagnetic wave signal energy, and plays the roles of respective independence and impedance matching. And matching characteristic impedance is ensured, and accurate measurement is carried out.

The existing waveguide circulators are respectively processed by adopting an upper cavity, a lower cavity and a matching step separation structure and are connected together by using screws, and the existing waveguide circulators have the following problems:

1. there is poor reliability and consistency because the upper and lower cavity structures need to be screwed together.

2. The upper and lower cavity structures need to be connected together by screws, so that the problem of poor tightness exists.

3. Since the upper and lower cavity structures need to be screwed together, there are problems of large workload and high processing cost in processing and assembling.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome prior art (the waveguide circulator of the upper and lower chamber structure mentioned in the background art), designs integration waveguide circulator, owing to adopt integration waveguide cavity structure, has good reliability and uniformity to have good seal, the simultaneous processing cost effectively reduces, and can obtain extensive application.

The utility model discloses a following technical scheme realizes: the integrated waveguide circulator comprises an upper cover plate, a lower permanent magnet and a waveguide cavity, wherein the waveguide cavity adopts an integrated waveguide cavity, a matching step which is divided into an upper part and a lower part is arranged in the waveguide cavity, and an upper ferrite sheet and a lower ferrite sheet are respectively arranged on the matching step on the upper part and the matching step on the lower part.

Further for realizing better the utility model discloses, adopt the following structure that sets up very much: the cross section of the matching step is of a T-shaped structure.

Further for realizing better the utility model discloses, adopt the following structure that sets up very much: an upper cover plate, an upper permanent magnet, an upper matching step, an upper ferrite sheet, a lower matching step, a lower permanent magnet and a lower cover plate are sequentially arranged in the waveguide cavity from top to bottom.

Further for realizing better the utility model discloses, adopt the following structure that sets up very much: the matching step and the waveguide cavity are of an integrated structure.

In particular, in the present technical solution, terms such as "connect", "fix", "set", "movably connect", and "movably connect" related to the mechanical structure are all technical means for conventional setting in the mechanical field, and can be used as long as the purpose of fixing, connecting, or movably setting can be achieved, so that no specific limitation is made in the text (for example, nuts and screws are used to cooperate to perform movable or fixed connection, bolts are used to perform movable or fixed connection, and a detachable connection between an object a and an object B is achieved by means of clamping, and the like).

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model discloses owing to adopt integration waveguide cavity structures, have good reliability and uniformity to have good seal, the simultaneous processing cost effectively reduces, and can obtain extensive application.

The utility model discloses an optimal design will match the step and change into T shape by original circular or Y shape, and the waveguide center knot changes into T shape by original Y shape, with the upper and lower cavity and the design of matching the step integration.

The utility model has the advantages of simple structure, the leakproofness is good, and the reliability is high, and the uniformity is high, has reduced the work load of processing and assembly.

Drawings

Fig. 1 is a schematic perspective view of the internal section of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the present invention.

Fig. 3 is a longitudinal sectional view of the inside of the present invention.

Fig. 4 is a schematic diagram of a signal transmission direction in application of the present invention.

Wherein, 1-upper cover plate, 2-upper permanent magnet, 3-upper ferrite, 4-lower ferrite, 5-lower cover plate, 6-lower permanent magnet, 7-waveguide cavity and 8-matching step.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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 work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

It is worth noting that: in the present application, when it is necessary to apply the known technology or the conventional technology in the field, the applicant may have the case that the known technology or/and the conventional technology is not specifically described in the text, but the technical means is not specifically disclosed in the text, and the present application is considered to be not in compliance with the twenty-sixth clause of the patent law.

Example 1:

the utility model provides an integration waveguide circulator owing to adopt integration waveguide cavity structures, has good reliability, uniformity and seal, and the simultaneous processing cost effectively reduces to can obtain extensive application, as shown in figure 1, figure 2, figure 3, adopt the following mode that sets up very much: including upper cover plate 1, last permanent magnet 2, lower apron 5, lower permanent magnet 6 and waveguide cavity 7, waveguide cavity 7 adopts the integration waveguide cavity, and is provided with the matching step 8 that falls into two parts of upper portion and lower part in waveguide cavity 7, is provided with ferrite piece 3 and lower ferrite piece 4 on the matching step 8 of matching step 8 on upper portion and lower part respectively.

As a preferred arrangement scheme, the integrated waveguide circulator is formed by an upper cover plate 1, an upper permanent magnet 2, a lower cover plate 5, a lower permanent magnet 6 and a waveguide cavity 7, wherein the waveguide cavity 7 adopts an integrated waveguide cavity structure, namely, the original structure formed by connecting the upper cavity and the lower cavity by matching screws is directly and integrally formed, so that the connection by screws is not needed, and the reliability, the consistency and the tightness are better; a matching step (composed of an upper part and a lower part) 8 is also arranged in the waveguide cavity 7, and the upper ferrite sheet 3 and the lower ferrite sheet 4 are respectively arranged on the matching step 8 at the upper part and the matching step 8 at the lower part.

Example 2:

this embodiment is further optimized on the basis of the above-mentioned embodiment, as shown in fig. 1, fig. 2, and fig. 3, the same portion as the above-mentioned technical solution will not be described herein again, and further, the following setting structure is particularly adopted to further realize the utility model discloses: the cross section of the matching step 8 is of a T-shaped structure.

As a preferable arrangement scheme, the integrated waveguide circulator is optimally designed, the matching step 8 is changed from the original round shape or the Y shape into the T shape, so that the waveguide port transition center junction is changed from the original Y shape into the T shape, and simultaneously, ferrites (an upper ferrite sheet 3 and a lower ferrite sheet 4) are bonded on the matching step 8 at the center of the waveguide junction.

Example 3:

this embodiment is further optimized on the basis of any of the above-mentioned embodiments, as shown in fig. 1, fig. 2, and fig. 3, the same portions as the above-mentioned technical solutions will not be described herein again, and further, the following setting structure is particularly adopted for better realizing the utility model: an upper cover plate 1, an upper permanent magnet 2, an upper matching step 8, an upper ferrite sheet 3, a lower ferrite sheet 4, a lower matching step 8, a lower permanent magnet 6 and a lower cover plate 5 are sequentially arranged in the waveguide cavity 7 from top to bottom.

As a preferable arrangement scheme, the integrated waveguide circulator takes a waveguide cavity 7 as a packaging main part, and an upper cover plate 1, an upper permanent magnet 2, an upper matching step 8, an upper ferrite sheet 3, a lower ferrite sheet 4, a lower matching step 8, a lower permanent magnet 6 and a lower cover plate 5 are sequentially arranged at a reserved arrangement position on the integrated waveguide circulator from top to bottom, wherein the matching step (consisting of an upper part and a lower part) 8, the upper ferrite sheet 3 and the lower ferrite sheet 4 form a waveguide port transition central junction.

Example 4:

this embodiment is further optimized on the basis of any of the above-mentioned embodiments, as shown in fig. 1, fig. 2, and fig. 3, the same portions as the above-mentioned technical solutions will not be described herein again, and further, the following setting structure is particularly adopted for better realizing the utility model: and an integrated structure is formed between the matching step 8 and the waveguide cavity 7.

Example 5:

the present embodiment is further optimized based on any of the above embodiments, and as shown in fig. 1 to 3, the integrated waveguide circulator includes a waveguide cavity (including a matching step (composed of an upper portion and a lower portion) 8 integrally disposed therein) 7, an upper cover plate 1, an upper permanent magnet 2, an upper ferrite sheet 3, a lower ferrite sheet 4, a lower permanent magnet 6, and a lower cover plate 5, which are all integrally structured.

Go up ferrite piece 3, lower ferrite piece 4 top-down arranges waveguide cavity 7 center knot department in order, waveguide circulator during operation, goes up permanent magnet 2 and lower permanent magnet 6 and magnetizes last ferrite piece 3 and lower ferrite piece 4, as shown in figure 4, the microwave gets into waveguide circulator from waveguide mouth 1, and when last ferrite piece 3 and lower ferrite piece 4, the phase shift that the levogyration weight and the dextrorotation weight of microwave produced is different for the microwave flows out from waveguide mouth 2, and keeps apart with waveguide mouth 3.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims

1. Integration waveguide circulator includes upper cover plate (1), goes up permanent magnet (2), apron (5) down, lower permanent magnet (6) and waveguide cavity (7), its characterized in that: the waveguide cavity (7) adopts an integrated waveguide cavity, a matching step (8) which is divided into an upper part and a lower part is arranged in the waveguide cavity (7), and an upper ferrite sheet (3) and a lower ferrite sheet (4) are respectively arranged on the matching step (8) on the upper part and the matching step (8) on the lower part.

2. The integrated waveguide circulator of claim 1, wherein: the cross section of the matching step (8) is of a T-shaped structure.

3. The integrated waveguide circulator of claim 2, wherein: the upper cover plate (1), the upper permanent magnet (2), the matching step (8) on the upper portion, the upper ferrite sheet (3), the lower ferrite sheet (4), the matching step (8) on the lower portion, the lower permanent magnet (6) and the lower cover plate (5) are sequentially arranged in the waveguide cavity (7) from top to bottom.

4. The integrated waveguide circulator of any one of claims 1 to 3, wherein: the matching step (8) and the waveguide cavity (7) are of an integrated structure.