Resonator and communication device

Abstract

The utility model provides a resonator and a communication device, and relates to the technical field of mobile communication, the resonator comprises a first cavity and a second cavity, the first cavity and the second cavity are arranged side by side, and resonance rods are respectively arranged in the first cavity and the second cavity; the resonance rod comprises a first resonance rod arranged in the first cavity and a second resonance rod arranged in the second cavity; the first resonance rod is provided with a first flanging structure, and the second resonance rod is provided with a second flanging structure. The first flanging structure and the second flanging structure are symmetrically arranged relative to the resonator so as to reduce the coupling amount between the first cavity and the second cavity. According to the resonator and the communication equipment provided by the utility model, the first flanging structure and the second flanging structure are symmetrically arranged relative to the resonator, so that the coupling amount between the first cavity and the second cavity can be reduced, and the resonator can obtain qualified intermodulation indexes and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile communications, in particular to a resonator and communication equipment. Background Art

[0002] With the continuous development of mobile communication technology, filters have become indispensable frequency selection devices. When the window coupling of the filter is large, it is necessary to reduce the window coupling.

[0003] In the related art, the way to reduce the window coupling amount is mostly to weld a copper sheet to the resonator cavity in the filter, but this method will affect the intermodulation and reliability of the filter, and therefore it is difficult to promote and use. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a resonator and a communication device to alleviate the above technical problems.

[0005] In a first aspect, an embodiment of the utility model provides a resonator, which includes a first cavity and a second cavity, wherein the first cavity and the second cavity are arranged side by side, and resonance rods are respectively arranged in the first cavity and the second cavity; wherein the resonance rods include a first resonance rod arranged in the first cavity and a second resonance rod arranged in the second cavity; the first resonance rod is provided with a first flange structure, and the second resonance rod is provided with a second flange structure; the first flange structure and the second flange structure are symmetrically arranged relative to the resonator to reduce the coupling amount between the first cavity and the second cavity.

[0006] In combination with the first aspect, an embodiment of the utility model provides a first possible implementation manner of the first aspect, wherein the above-mentioned resonance rod includes a column and a resonance disk arranged at the top of the column; the first flange structure and the second flange structure are respectively arranged at the edge position of the resonance disk of the corresponding resonance rod; and the first flange structure and the second flange structure are respectively parallel to the corresponding column.

[0007] In combination with the first possible implementation of the first aspect, the embodiment of the utility model provides a second possible implementation of the first aspect, wherein the first cavity and the second cavity are connected to each other.

[0008] In combination with the second possible implementation of the first aspect, an embodiment of the utility model provides a third possible implementation of the first aspect, wherein a first support seat supporting the first resonance rod is provided at the bottom of the first cavity; and a second support seat supporting the second resonance rod is provided at the bottom of the second cavity.

[0009] In combination with the second possible implementation of the first aspect, the embodiment of the utility model provides a fourth possible implementation of the first aspect, wherein the above-mentioned resonator also includes a cavity cover plate; the cavity cover plate is arranged at the top of the first cavity and the second cavity.

[0010] In combination with the fourth possible implementation of the first aspect, the embodiment of the utility model provides a fifth possible implementation of the first aspect, wherein the above-mentioned resonator also includes a coupling rod; the coupling rod is arranged between the first cavity and the second cavity; one end of the coupling rod is fixed to the cavity cover plate, and the other end extends to the position where the first cavity and the second cavity are connected.

[0011] In combination with the fourth possible implementation of the first aspect, the embodiment of the utility model provides a sixth possible implementation of the first aspect, wherein the above-mentioned first cavity is also configured with a first tuning component, and the first tuning component is arranged at the position of the cavity cover corresponding to the first cavity.

[0012] In combination with the sixth possible implementation of the first aspect, the embodiment of the utility model provides a seventh possible implementation of the first aspect, wherein the above-mentioned second cavity is also configured with a second tuning component, and the second tuning component is arranged at the position of the cavity cover corresponding to the second cavity.

[0013] In combination with the seventh possible implementation of the first aspect, the embodiment of the utility model provides an eighth possible implementation of the first aspect, wherein the first tuning component and the second tuning component include a tuning screw and a tuning nut matching the tuning screw.

[0014] In a second aspect, an embodiment of the present invention further provides a communication device, wherein the communication device is configured with the resonator described in the first aspect.

[0015] The embodiments of the present invention bring the following beneficial effects:

[0016] The resonator and communication equipment provided by the embodiments of the utility model include a first cavity and a second cavity in the resonator, the first cavity and the second cavity are arranged side by side, and resonance rods are respectively arranged in the first cavity and the second cavity; wherein the resonance rods include a first resonance rod arranged in the first cavity and a second resonance rod arranged in the second cavity; the first resonance rod is provided with a first flange structure, and the second resonance rod is provided with a second flange structure; the first flange structure and the second flange structure are symmetrically arranged relative to the resonator to reduce the coupling amount between the first cavity and the second cavity, and the resonator can obtain qualified intermodulation indicators and reliability.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A structural block diagram of a resonator provided in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the structure of a resonator provided in an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of a three-dimensional structure of a resonator provided in an embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the coupling amount of a resonant rod of a resonator provided in an embodiment of the utility model;

[0024] Figure 5 A schematic diagram of the resonant rod coupling quantity of another resonator provided in an embodiment of the utility model.

[0025] Icon: 10-first cavity; 20-second cavity; 101-first resonant rod; 201-second resonant rod; 102-first flange structure; 202-second flange structure; 103-first support seat; 203-second support seat; 30-cavity cover; 40-coupling rod; 104-tuning screw; 105-tuning nut. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] At present, in the technical field of mobile communications, resonators can be used as filters, such as in RF and microwave filters. Usually, when the window coupling of the filter is large, the window coupling needs to be reduced. In the related art, the way to reduce the window coupling is to weld the copper sheet on the cavity, but this method will affect the intermodulation and reliability of the filter or resonator.

[0028] Based on this, a resonator and a communication device provided in an embodiment of the utility model can effectively alleviate the above-mentioned technical problems.

[0029] To facilitate understanding of this embodiment, a resonator disclosed in an embodiment of the utility model is first introduced in detail.

[0030] In a possible implementation, the present utility model embodiment provides a resonator, specifically, as Figure 1 The structural block diagram of a resonator shown in the figure includes a first cavity 10 and a second cavity 20. The first cavity 10 and the second cavity 20 are arranged side by side, and resonance rods are respectively arranged in the first cavity 10 and the second cavity 20.

[0031] The resonant rod includes a first resonant rod 101 disposed in the first cavity 10 and a second resonant rod 201 disposed in the second cavity 20;

[0032] The first resonant rod 101 is provided with a first flange structure 102, and the second resonant rod 201 is provided with a second flange structure 202;

[0033] The first flange structure 102 and the second flange structure 202 are symmetrically arranged relative to the resonator to reduce the coupling between the first cavity 10 and the second cavity 20 .

[0034] In a specific implementation, the first cavity and the second cavity are connected, and the first flange structure and the second flange structure are arranged on one side of the connected position, that is, the first flange structure is arranged on the side close to the second cavity, and the second flange structure is arranged on the side close to the first cavity, and, taking the midline of the line connecting the center points of the first cavity and the second cavity as the midline of the entire resonator, the first flange structure and the second flange structure are symmetrically arranged relative to the midline, which can reduce the coupling amount between the two cavities, and reduce the overall coupling amount between the windows by changing the capacitive coupling between the resonators, so that when the resonator is used as a filter, it can obtain qualified intermodulation indicators and reliability.

[0035] Therefore, the resonator provided by the embodiment of the utility model includes a first cavity and a second cavity, the first cavity and the second cavity are arranged side by side, and resonance rods are respectively arranged in the first cavity and the second cavity; wherein the resonance rod includes a first resonance rod arranged in the first cavity and a second resonance rod arranged in the second cavity; the first resonance rod is provided with a first flange structure, and the second resonance rod is provided with a second flange structure; the first flange structure and the second flange structure are symmetrically arranged relative to the resonator to reduce the coupling amount between the first cavity and the second cavity, and the resonator can obtain qualified intermodulation indicators and reliability.

[0036] In actual use, the above-mentioned first cavity and second cavity make the resonator of the embodiment of the utility model constitute a dual-cavity resonator, the first cavity and the second cavity are the resonant cavities of the dual-cavity resonator, and the first cavity and the second cavity are connected to form the cavity of the entire resonator.

[0037] Furthermore, the resonant rods respectively arranged in the first cavity and the second cavity are symmetrically arranged relative to the midline of the entire resonator, and the resonant rods include a column and a resonant disk arranged at the top of the column; the above-mentioned first flange structure and second flange structure are respectively arranged at the edge position of the resonant disk of the corresponding resonant rod; and the first flange structure and the second flange structure are respectively parallel to the corresponding column, thereby increasing the capacitive coupling between the resonant rods and reducing the overall coupling amount.

[0038] For ease of understanding, Figure 2 A schematic diagram of the structure of a resonator is shown, specifically, Figure 2 FIG. 1 shows a cross-sectional schematic diagram of a resonator, wherein the dotted line represents the center line of the resonator, the left side of the dotted line represents the first cavity 10, the right side of the dotted line represents the second cavity 20, and, Figure 2 Also shown in the figure is a first resonant rod 101, a second resonant rod 201, and a first flange structure 102 and a second flange structure 202. The positions indicated by arrows are the first flange structure 102 and the second flange structure 202, respectively.

[0039] Further, corresponding Figure 2 The cross-sectional diagram shown, Figure 3 A schematic diagram of the three-dimensional structure of a resonator is also shown, which also includes a first cavity 10, a second cavity 20, a first resonant rod 101, a second resonant rod 201, and a first flange structure 102 and a second flange structure 202.

[0040] And, from Figure 2 and Figure 3 It can be seen that the first cavity 10 and the second cavity 20 are connected.

[0041] Further, if Figure 2 and Figure 3 As shown, a first support seat 103 for supporting the first resonance rod 101 is disposed at the bottom of the first cavity 10 , and a second support seat 203 for supporting the second resonance rod 201 is disposed at the bottom of the second cavity 20 .

[0042] In addition, the resonator provided by the embodiment of the utility model further includes a cavity cover plate 30 ; the cavity cover plate 30 is disposed at the top of the first cavity 10 and the second cavity 20 .

[0043] Further, if Figure 2 and Figure 3 As shown, the resonator provided by the embodiment of the utility model also includes a coupling rod 40; the coupling rod 40 is arranged between the first cavity 10 and the second cavity 20; specifically, one end of the coupling rod 40 is fixed to the cavity cover 30, and the other end extends to the position where the first cavity 10 and the second cavity 20 are connected, that is, extends to the inside of the cavity of the resonator.

[0044] Furthermore, the first cavity 10 is also configured with a first tuning component, which is arranged at a position of the cavity cover corresponding to the first cavity. Furthermore, the second cavity is also configured with a second tuning component, which is arranged at a position of the cavity cover corresponding to the second cavity.

[0045] Specifically, the first tuning assembly and the second tuning assembly include a tuning screw and a tuning nut matched with the tuning screw.

[0046] For ease of understanding, the above Figure 2 and Figure 3 The tuning screw 104 and the tuning nut 105 are also shown. In a specific implementation, the tuning screw 104, the tuning nut 105, and the coupling rod 40 can adjust their positions to affect the tuning characteristics of the resonator. The specific tuning method is subject to actual use, and the embodiment of the utility model does not limit this.

[0047] In summary, based on the resonator provided in the embodiment of the utility model, the capacitive coupling between the two cavities can be changed by the first flange structure and the second flange structure, thereby reducing the overall coupling amount between the windows, so that the resonator obtains qualified electrical indicators, intermodulation indicators and reliability.

[0048] Furthermore, the first flange structure and the second flange structure can be designed as an integral part with the resonance disk, and the main body and the resonance disk included in the resonance rod can also be designed as an integral part.

[0049] Furthermore, the first flange structure and the second flange structure are usually designed as sheet structures, and their bending direction is bent downward from the radial direction of the resonance disk, that is, bent toward the side where the column is located, to form a flange structure, thereby changing the overall flange shape of the resonance rod.

[0050] Further, for ease of understanding, Figure 4 A schematic diagram of the coupling amount of the resonant rod of a resonator is shown. Figure 5 A schematic diagram of the resonant rod coupling of another resonator is shown, where Figure 4 and Figure 5 The horizontal axis represents the frequency (Freq), usually in MHz, and the vertical axis represents the coupling amount.

[0051] Specifically, Figure 4 The coupling value of the resonant rod without the first flange structure and the second flange structure can reach a value of 5.5. Figure 5 By adding a first flange structure and a second flange structure, the coupling amount can be reduced to 0.8.

[0052] It can be seen that the resonator of the embodiment of the utility model can effectively reduce the coupling amount by adding the first flange structure and the second flange structure, and avoid the reliability problems caused by modifying the cavity, so that the overall performance of the resonator can be better.

[0053] Furthermore, based on the above embodiment, an embodiment of the utility model also provides a communication device, and the communication device is configured with the resonator of the above embodiment.

[0054] The communication device provided in the embodiment of the utility model has the same technical features as the resonator provided in the above embodiment, so it can also solve the same technical problems and achieve the same technical effects.

[0055] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the communication device described above can refer to the corresponding process in the aforementioned embodiment, and will not be repeated here.

[0056] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0058] Finally, it should be noted that the above embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A resonator, characterized in that: The resonator comprises a first cavity and a second cavity, the first cavity and the second cavity are arranged side by side, and a resonant rod is respectively arranged in the first cavity and the second cavity; Wherein, the resonant rod comprises a first resonant rod arranged in the first cavity and a second resonant rod arranged in the second cavity; The first resonant rod is provided with a first flange structure, and the second resonant rod is provided with a second flange structure; The first flange structure and the second flange structure are symmetrically arranged relative to the resonator to reduce the coupling amount between the first cavity and the second cavity.

2. The resonator according to claim 1, characterized in that The resonant rod comprises a column and a resonant disk arranged at the top of the column; The first flange structure and the second flange structure are respectively arranged at the edge positions of the corresponding resonance disk of the resonance rod; Furthermore, the first flange structure and the second flange structure are respectively parallel to the corresponding columns.

3. The resonator according to claim 2, characterized in that The first cavity and the second cavity are connected to each other.

4. The resonator according to claim 3, characterized in that A first supporting seat supporting the first resonant rod is provided at the bottom of the first cavity; A second supporting seat for supporting the second resonant rod is disposed at the bottom of the second cavity.

5. The resonator according to claim 3, characterized in that The resonator also includes a cavity cover plate; The cavity cover plate is arranged on top ends of the first cavity and the second cavity.

6. The resonator according to claim 5, characterized in that The resonator further comprises a coupling rod; the coupling rod is arranged between the first cavity and the second cavity; One end of the coupling rod is fixed to the cavity cover plate, and the other end extends to a position where the first cavity and the second cavity are connected.

7. The resonator according to claim 5, characterized in that The first cavity is further configured with a first tuning component, and the first tuning component is arranged at a position of the cavity cover corresponding to the first cavity.

8. The resonator according to claim 7, characterized in that The second cavity is further configured with a second tuning component, and the second tuning component is arranged at a position of the second cavity corresponding to the cavity cover.

9. The resonator according to claim 8, characterized in that The first tuning assembly and the second tuning assembly include a tuning screw and a tuning nut matched with the tuning screw.

10. A communication device, characterized in that: The communication device is provided with the resonator according to any one of claims 1 to 9.

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