CN112510332A - Microwave ferrite circulator, isolator and mobile terminal - Google Patents

Abstract

The invention provides a microwave ferrite circulator, an isolator and a mobile terminal, wherein the microwave ferrite circulator comprises a shell, and a magnet, a first ferrite, a central conductor and a second ferrite which are arranged in the shell from top to bottom, and the magnetic saturation of the first ferrite and the second ferrite are 1800 vT. The isolator comprises a load and the microwave ferrite circulator provided by the invention, and the load is connected with the central conductor in the microwave ferrite circulator. The invention can ensure that the bias magnetic field required by the first ferrite and the second ferrite can be met under the condition of single-side magnetic supply of the first ferrite and the second ferrite by only using one piece of magnet, the electrical performance index reaches the standard, the cost of the magnet and the whole thickness of the microwave ferrite circulator are effectively reduced, and the production cost of the microwave ferrite circulator is further reduced.

Description

Microwave ferrite circulator, isolator and mobile terminal

[ technical field ] A method for producing a semiconductor device

The present invention relates to a circulator, and more particularly, to a microwave ferrite circulator, an isolator and a mobile terminal.

[ background of the invention ]

Microwave ferrite circulators are signal transfer devices commonly used in communication technology, and are made by using the gyromagnetic effect of ferrite. Microwave ferrite circulators are mainly used in wireless communication systems to perform functions such as stable operation of a power amplifier, impedance matching, removal of reflected waves, and the like. Since the microwave ferrite circulator has irreversibility, the isolation function, namely the isolator can be realized by installing a load connected to a certain terminal of the circulator. Microwave ferrite circulators are widely used in microwave systems and microwave measuring instruments for radar, communication, radio navigation, electronic countermeasure, remote control, telemetry, and the like.

The existing microwave ferrite circulator generally comprises two magnets to ensure that a sufficient magnetic field is provided for the ferrite, but the use of the two magnets as a material with higher cost can cause higher production cost of the microwave ferrite circulator.

Accordingly, there is a need for an improved construction of the above-described microwave ferrite circulator.

[ summary of the invention ]

The technical problem to be solved by the invention is as follows: the utility model provides a microwave ferrite circulator, isolator and mobile terminal, solves the higher problem of manufacturing cost of microwave ferrite circulator among the prior art.

In order to solve the technical problems, the invention adopts the technical scheme that:

a first aspect of an embodiment of the present invention provides a microwave ferrite circulator, including: the magnetic field sensor comprises a shell, and a magnet, a first ferrite, a central conductor and a second ferrite which are arranged in the shell from top to bottom, wherein the magnetic saturation of the first ferrite and the magnetic saturation of the second ferrite are 1800 vT.

In some embodiments, the microwave ferrite circulator further comprises: and the magnetic conductive sheet is arranged between the magnet and the first ferrite.

In some embodiments, the microwave ferrite circulator further comprises: the pole piece is arranged on one side, away from the magnetic conductive piece, of the magnet, and the compensation piece is arranged on one side, away from the magnet, of the pole piece.

In some embodiments, the housing comprises: the accommodating cavity and the cover plate covering the accommodating cavity.

In some embodiments, the cover plate side wall is formed with threads, and the receiving chamber inner wall is formed with thread grooves screwed with the threads.

In some embodiments, a buckle is arranged on one side of the cover plate close to the accommodating cavity, and a clamping groove clamped with the buckle is arranged on the side wall of the accommodating cavity.

A second aspect of an embodiment of the present invention provides an isolator, including: a load and a microwave ferrite circulator as described in the first aspect of an embodiment of the present invention, the load being connected to a center conductor within the microwave ferrite circulator.

In some embodiments, the center conductor is formed with at least one spring, and the spring is welded to the load.

In some embodiments, the central conductor is formed with three spring plates, one of the spring plates is welded to the load, and the other two spring plates are respectively used as an input end and an output end.

A third aspect of embodiments of the present invention provides a mobile terminal, including: an isolator as claimed in the second aspect of the embodiments of the present invention.

From the above description, compared with the prior art, the invention has the following beneficial effects:

the magnetic saturation of the first ferrite and the magnetic saturation of the second ferrite are optimally adjusted, so that the magnetic saturations of the first ferrite and the second ferrite are less than or equal to each other, the bias magnetic field required by the first ferrite and the second ferrite can be met under the condition that only one piece of magnet is used for supplying magnetism to the first ferrite and the second ferrite on a single surface, the electrical performance index reaches the standard, the cost of the magnet and the overall thickness of the microwave ferrite circulator are effectively reduced, and the production cost of the microwave ferrite circulator is further reduced.

[ description of the 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 to be understood that the drawings in the following description are of some, but not all, embodiments of the invention. For a person skilled in the art, other figures can also be obtained from the provided figures without inventive effort.

FIG. 1 is an exploded view of a microwave ferrite circulator provided by an embodiment of the present invention;

FIG. 2 is an exploded view of an isolator according to an embodiment of the present invention;

fig. 3 is a block diagram of modules of a mobile terminal according to an embodiment of the present invention.

[ detailed description ] embodiments

For purposes of promoting a clear understanding of the objects, aspects and advantages of the invention, reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements throughout. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, fig. 1 is an exploded schematic view of a microwave ferrite circulator according to an embodiment of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a microwave ferrite circulator, which includes a housing 1, and a magnet 2, a first ferrite 3, a central conductor 4, and a second ferrite 5, which are disposed in the housing 1 from top to bottom, wherein the magnetic saturation of the first ferrite 3 and the magnetic saturation of the second ferrite 5 are 1800 vT.

In practical application, on the premise that the electrical performance of the microwave ferrite circulator reaches the standard, the magnetic saturations of the first ferrite 3 and the second ferrite 5 are optimally adjusted, and the optimized test is performed in simulation software, so that the bias magnetic field required by the first ferrite 3 and the second ferrite 4 can be met by performing single-side magnetic supply on the first ferrite 3 and the second ferrite 5 by using one piece of magnet (namely the magnet 2).

As an example, the magnetic saturation of the first ferrite 3 and the second ferrite 5 may be adjusted by changing the internal material of the first ferrite 3 and the second ferrite 5. Preferably, the magnetic saturation of the first ferrite 3 and the second ferrite 5 is reduced from the conventional 1900vT to 1800vT by changing the internal material of the first ferrite 3 and the second ferrite 5, so that the bias magnetic field required for the first ferrite 3 and the second ferrite 4 can be satisfied by using one magnet (i.e., the magnet 2) to supply magnetism to the first ferrite 3 and the second ferrite 5 on one side.

It should be understood that the magnetic saturation of the first ferrite 3 and the second ferrite 5 is not limited to 1800vT, which is determined according to the specific application scenario, and the embodiment of the present invention is not limited thereto.

The microwave ferrite circulator provided by the embodiment of the invention can meet the requirement of a bias magnetic field required by the first ferrite 3 and the second ferrite 5 under the condition that only one piece of magnet (namely the magnet 2) is used for carrying out single-side magnetic supply on the first ferrite 3 and the second ferrite 5, the electrical performance index reaches the standard, the cost of the magnet and the whole thickness of the microwave ferrite circulator are effectively reduced, and the production cost of the microwave ferrite circulator is further reduced.

As a possible implementation manner, in order to ensure the normal use of the microwave ferrite circulator, the microwave ferrite circulator may further include a magnetic conductive sheet 6, a compensation sheet 8 and a pole piece 7, wherein the magnetic conductive sheet 6 is disposed between the magnet 2 and the first ferrite 3, the pole piece 7 is disposed on a side of the magnet 2 away from the magnetic conductive sheet 6, and the compensation sheet 8 is disposed on a side of the pole piece 7 away from the magnet 2. It can be understood that in order to make the first ferrite 3 uniformly magnetized by the magnet 2, a magnetic conductive iron sheet (i.e. the above-mentioned magnetic conductive sheet 6) is added between the magnet 2 and the first ferrite 3 for uniform magnetization, and the diameter of the first ferrite 3 must be smaller than the diameter of the magnetic conductive sheet 6 to achieve uniform magnetization.

As another possible embodiment, the housing may include a receiving cavity 11 and a cover plate 12 covering the receiving cavity 11. As an example, the side wall of the cover plate 12 is formed with a thread 121, and the inner wall of the receiving cavity 11 is formed with a thread groove 111 screwed with the thread 121; alternatively, a buckle (not shown) is disposed on one side of the cover plate 12 close to the accommodating cavity 11, and a clamping groove (not shown) for clamping the buckle is disposed on a side wall of the accommodating cavity 11. It is understood that in other embodiments, the connection manner between the cover plate 12 and the accommodating cavity 11 is not limited to the above screwing or clamping, and other structural forms with the same or similar functions may be adopted, which is not limited by the embodiment of the present invention.

Referring to fig. 2, fig. 2 is an exploded view of an isolator according to an embodiment of the invention.

As shown in fig. 2, an isolator according to an embodiment of the present invention further includes a load 9 and the microwave ferrite circulator provided by the embodiment of the present invention, wherein the load 9 is connected to the center conductor 4 in the microwave ferrite circulator. It should be noted that the load 9 connected to the center conductor 4 plays a role of absorbing and isolating the reverse signal, and the center conductor 4 in the microwave ferrite circulator can be used as an isolator after being connected to the load 9.

As a possible implementation manner, the central conductor 4 is formed with at least one elastic sheet 41, and the elastic sheet 41 is welded to the load 9. Specifically, the central conductor 4 is formed with three elastic pieces 41, one of the elastic pieces 41 is welded to the load 9, and the other two elastic pieces 41 are respectively used as an input end and an output end. It can be understood that the number of the elastic pieces 41 formed by the central conductor 4 is determined according to a specific application scenario, and is not limited in the embodiment of the present invention.

Referring to fig. 3, fig. 3 is a block diagram of a mobile terminal according to an embodiment of the present invention.

As shown in fig. 3, an embodiment of the present invention further provides a mobile terminal, which includes the isolator provided in the embodiment of the present invention.

It should be noted that, in the summary of the present invention, each embodiment is described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

It is further noted that, in the present disclosure, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined in this disclosure may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A microwave ferrite circulator, comprising: the magnetic field sensor comprises a shell, and a magnet, a first ferrite, a central conductor and a second ferrite which are arranged in the shell from top to bottom, wherein the magnetic saturation of the first ferrite and the magnetic saturation of the second ferrite are 1800 vT.

2. A microwave ferrite circulator as claimed in claim 1, further comprising: and the magnetic conductive sheet is arranged between the magnet and the first ferrite.

3. A microwave ferrite circulator as claimed in claim 2, further comprising: the pole piece is arranged on one side, away from the magnetic conductive piece, of the magnet, and the compensation piece is arranged on one side, away from the magnet, of the pole piece.

4. A microwave ferrite circulator as claimed in claim 1, wherein the housing comprises: the accommodating cavity and the cover plate covering the accommodating cavity.

5. The microwave ferrite circulator of claim 4 wherein the cover plate side wall is threaded and the receiving chamber inner wall is formed with a thread groove in threaded engagement with the threads.

6. The microwave ferrite circulator of claim 4, wherein a snap is disposed on a side of the cover plate adjacent to the receiving cavity, and a slot is disposed on a side wall of the receiving cavity for engaging with the snap.

7. An isolator, comprising: a load and a microwave ferrite circulator as claimed in any one of claims 1 to 6, the load being connected to a central conductor within the microwave ferrite circulator.

8. The isolator according to claim 7, wherein the center conductor is formed with at least one spring, the spring being welded to the load.

9. The isolator as in claim 8, wherein the center conductor is formed with three clips, one of the clips is soldered to a load, and the other two clips serve as an input terminal and an output terminal, respectively.

10. A mobile terminal, comprising: the separator of any of claims 7-9.

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