CN219123460U - Resonator, filter and communication device - Google Patents

Abstract

The application provides a resonator, wave filter and communication equipment, above-mentioned resonator include the resonance piece, and resonance piece rotationally installs in the casing of wave filter, and has seted up on the resonance piece and transferred the coupling mouth, transfers the eccentric setting of coupling mouth for the axis of rotation of resonance piece. According to the resonator, the coupling adjusting opening is formed in the resonant piece, the coupling adjusting opening is eccentrically arranged relative to the rotating axis of the resonant piece, the resonant piece of the resonator can be rotated to change the coupling area of the resonator relative to other resonators, and further the coupling strength between two resonators in the filter is adjusted, so that a coupling rod, a flying rod and a corresponding mounting structure are not required to be additionally arranged on the filter, the inner space required by the filter is effectively saved, the size of the filter is effectively reduced, and the miniaturization development of the filter is facilitated.

Description

Resonator, filter and communication device

Technical Field

The application belongs to the technical field of radio frequency devices, and particularly relates to a resonator, a filter and communication equipment.

Background

In conventional filters, in order to adjust the coupling strength between two resonators, it is often necessary to provide a coupling rod between two adjacent resonators or a flying rod between two non-adjacent resonators. In order to assemble the coupling rod or the flying rod, a corresponding mounting structure is required to be arranged on the shell of the filter, for example, a flying rod clamping seat for fixing the flying rod is arranged in the cavity, and the mounting structure and the coupling rod or the flying rod occupy the inner space of the filter, so that the size of the filter is increased, and the miniaturization development of the filter is not facilitated.

Disclosure of Invention

An objective of the embodiments of the present application is to provide a resonator, a filter and a communication device, so as to solve a technical problem of a larger size of the filter in the related art.

In order to achieve the above purpose, the technical scheme adopted in the embodiment of the application is as follows: the resonator comprises a resonant piece, wherein the resonant piece is rotatably arranged in a shell of the filter, a coupling adjusting opening is formed in the resonant piece, and the coupling adjusting opening is eccentrically arranged relative to the rotation axis of the resonant piece.

The resonator provided by the embodiment of the application has at least the following beneficial effects: according to the resonator provided by the embodiment of the application, the coupling adjusting opening is formed in the resonant piece and is eccentrically arranged relative to the rotation axis of the resonant piece, so that the resonant piece of the resonator can be rotated to change the coupling area of the resonator relative to other resonators, and the coupling strength between two resonators in the filter is adjusted. Therefore, a coupling rod, a flying rod and a corresponding mounting structure are not required to be additionally arranged on the filter, so that the inner space required by the filter is effectively saved, the size of the filter is effectively reduced, and the miniaturization development of the filter is facilitated.

In some embodiments of the present application, the resonance member includes a resonance rod rotatably mounted to the housing of the filter and a resonance disk connected to the resonance rod, and the coupling opening is formed in the resonance disk.

In some embodiments of the present application, the resonant disc includes a disc body connected to the resonant rod and a flange connected to the disc body, and the coupling adjusting opening is formed on the flange.

In some embodiments of the present application, the resonator further includes a capacitive loading member sleeved on the resonant rod, and the capacitive loading member is spaced from the resonant disk to form a capacitance.

In some embodiments of the present application, the resonant disk includes a disk body connected to the resonant rod and a flange connected to the disk body, where a side of the flange, which is close to the resonant rod, is disposed at an opposite interval from the capacitive loading member to form the capacitor.

Embodiments of the present application further provide a filter, including a housing and the resonator according to any of the embodiments, where the resonator element is rotatably mounted in the housing.

The filter provided by the embodiment of the application has at least the following beneficial effects: the filter provided by the embodiment of the application adopts the resonator described in any one of the embodiments, so that the size of the filter is effectively reduced, and the miniaturization development of the filter is facilitated.

In some embodiments of the present application, the resonator further includes an adjusting member, a first through hole is formed in a wall body of the housing, the adjusting member is rotatably installed in the first through hole, and the adjusting member and the resonating member rotate synchronously.

In some embodiments of the present application, an end of the adjusting member remote from the resonating member is provided with an adjusting groove, which cooperates with an external tool to rotate the adjusting member.

In some embodiments of the present application, the adjusting member is provided with a limiting structure, and the limiting structure cooperates with the resonant member to limit the position of the resonant member in the axial direction of the adjusting member.

In some embodiments of the present application, an end of the adjusting member away from the resonant member is flush with a port of the first through hole away from the resonant member; or alternatively, the process may be performed,

one end of the adjusting piece, which is far away from the resonance piece, is concavely arranged in the first through hole.

In some embodiments of the present application, the filter further includes a signal shielding medium disposed within the first via.

The embodiment of the application also provides communication equipment, which comprises the filter in any one of the embodiments.

The communication equipment provided by the embodiment of the application has at least the following beneficial effects: the communication device provided by the embodiment of the application adopts the filter described in any one of the embodiments, so that the volume of the communication device is effectively reduced, and the miniaturization development of the communication device is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a filter according to an embodiment of the present application;

FIG. 2 is an exploded view of the filter of FIG. 1;

FIG. 3 is a schematic diagram of an exploded structure of a resonator in the filter shown in FIG. 2;

FIG. 4 is a schematic diagram of a front view of a resonator in the filter shown in FIG. 2;

FIG. 5 is a schematic cross-sectional view of the resonator shown in FIG. 4 taken along the A-A direction;

FIG. 6 is a schematic side view of the filter of FIG. 1;

fig. 7 is a schematic cross-sectional view of the filter shown in fig. 6 in the B-B direction.

Wherein, each reference sign in the figure:

100. a filter;

110. a housing; 111. a cavity; 1111. a first through hole; 112. a cover plate;

120. a resonator; 121. a resonating member; 1211. a resonant rod; 1212. a resonant disk; 12121. a tray body; 12122. flanging; 1213. a coupling adjusting port; 122. a capacitive loading member; 1221. a loading unit; 1222. a connection part; 123. an adjusting member; 1231. an adjustment tank; 1232. a first flange; 1233. a second flange; 124. and a capacitor.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

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

In conventional filters, in order to adjust the coupling strength between two resonators, it is often necessary to provide a coupling rod between two adjacent resonators or a flying rod between two non-adjacent resonators. In order to assemble the coupling rod or the flying rod, a corresponding mounting structure is required to be arranged on the shell of the filter, for example, a flying rod clamping seat for fixing the flying rod is arranged in the shell, and the mounting structure and the coupling rod or the flying rod occupy the inner space of the filter, so that the size of the filter is increased, and the miniaturization development of the filter is not facilitated. Therefore, the related designs of the coupling rod and the flying rod have failed to meet the demand for miniaturization of the filter.

Therefore, the embodiment of the application provides the resonator, the resonator is provided with the coupling adjusting opening on the resonator and the coupling adjusting opening is eccentrically arranged relative to the rotation axis of the resonator, so that the resonator can be rotated to change the coupling area of the resonator relative to other resonators, the coupling strength between two resonators in the filter is adjusted, and an additional coupling rod or a flying rod is not needed, so that the internal space required by the filter is effectively saved, the volume of the filter is effectively reduced, and the miniaturization development of the filter is facilitated.

The resonator provided in the embodiments of the present application will now be described with reference to specific embodiments and drawings.

Referring to fig. 1 to 3, the embodiment of the present application provides a resonator 120, which includes a resonator element 121, the resonator element 121 is rotatably installed in a housing 110 of the filter 100, and a coupling opening 1213 is formed on the resonator element 121, and the coupling opening 1213 is eccentrically disposed with respect to a rotation axis of the resonator element 121.

The resonator element 121 is a main component of the resonator 120, which is used to generate a resonance frequency. Alternatively, the resonant member 121 may be a metal resonant member 121, a ceramic dielectric resonant member 121 or a dielectric resonant member 121 made of other materials, which is not particularly limited herein.

The decoupling port 1213 may be formed at any portion of the resonator 121. The shape of the opening of the decoupling port 1213 may be a regular pattern, for example, a square structure, a circular structure, etc., and the shape of the opening of the decoupling port 1213 may be an irregular pattern, and the eccentric arrangement of the decoupling port 1213 with respect to the rotation axis of the resonator 121 means that the geometric center of the decoupling port 1213 is not located on the rotation axis of the resonator 121. The number of the tuning openings 1213 may be one or plural, and when the number of the tuning openings 1213 is plural, the plural tuning openings 1213 are distributed around the rotation axis of the resonator 121, it should be noted that a specific structure of the distribution of the plural tuning openings 1213 around the rotation axis of the resonator 121 may be determined according to a distribution structure of the plural resonators 120 disposed in the housing 110 of the filter 100, which is not limited herein.

The principle of adjustment of the coupling strength between the two resonators 120 is as follows:

when the resonator 121 is rotated in the forward direction, the coupling opening 1213 of the resonator 121 is gradually rotated to be opposite to the other resonators, and in the process, the relative coupling area between the two resonators 120 is gradually reduced, thereby reducing the coupling strength between the two resonators 120, and when the coupling opening 1213 is completely opposite to the other resonators, the relative coupling area between the two resonators 120 becomes minimum, and at this time, the coupling strength between the two resonators 120 is minimum; then, the resonator element 121 is rotated forward or the resonator element 121 is rotated backward, so that the coupling opening 1213 of the resonator element 121 is gradually separated from the other resonators, and in the process, the relative coupling area between the two resonators 120 is gradually increased, thereby increasing the coupling strength between the two resonators 120, and when the coupling opening 1213 is completely separated from the position opposite to the other resonators, the relative coupling area between the two resonators 120 becomes maximum, and at this time, the coupling strength between the two resonators 120 is maximum.

According to the resonator 120 provided by the embodiment of the present application, the coupling adjusting opening 1213 is formed on the resonator element 121, and the coupling adjusting opening 1213 is eccentrically disposed with respect to the rotation axis of the resonator element 121, so that the resonator element 121 of the resonator 120 can be rotated to change the coupling area of the resonator 120 with respect to other resonators 120, thereby realizing adjustment of the coupling strength between two resonators 120 in the filter 100. Therefore, no coupling rod, no flying rod and no corresponding mounting structure are additionally arranged on the filter 100, so that the internal space required by the filter 100 is effectively saved, the volume of the filter 100 is effectively reduced, and the miniaturization development of the filter 100 is facilitated.

In some embodiments of the present application, referring to fig. 3, the resonator 121 includes a resonator rod 1211 rotatably mounted on the housing 110 of the filter 100 and a resonator plate 1212 connected to the resonator rod 1211, and the tuning port 1213 is formed on the resonator plate 1212.

The resonance rod 1211 is a main body portion of the resonator 121 for generating a resonance frequency. The resonant rod 1211 may be a hollow rod or a solid rod. Alternatively, the shape structure of the resonance rod 1211 may be, but not limited to, a cylindrical structure, a prismatic structure, or the like, and is not particularly limited herein.

The resonance plate 1212 may be disposed at one end of the resonance rod 1211, or may be disposed at other portions of the resonance rod 1211, for example, at the middle of the resonance rod 1211, which is not particularly limited herein. The resonance plate 1212 may be integrally connected to the resonance rod 1211, or may be separately connected to the resonance rod 1211, which is not particularly limited herein. The resonance plate 1212 and the resonance rod 1211 remain relatively fixed after connection, so that the resonance plate 1212 can be rotated in synchronization with the rotation of the resonance rod 1211.

By arranging the coupling adjusting port 1213 on the resonance disk 1212, the structure of the resonance rod 1211 is not required to be modified, so that the coupling strength between the two resonators 120 in the filter 100 is effectively adjusted on the premise of guaranteeing the working performance of the resonance member 121.

Of course, in other embodiments, the tuning opening 1213 may also be formed on the resonant rod 1211, and when the tuning opening 1213 is formed on the resonant rod 1211, the resonant rod 1211 is a hollow rod, and the tuning opening 1213 penetrates from the outer wall surface of the resonant rod 1211 to the inner cavity of the resonant rod 1211.

In some embodiments of the present application, referring to fig. 3, the resonance disk 1212 includes a disk 12121 connected to the resonance rod 1211 and a flange 12122 connected to the disk 12121, and the tuning port 1213 is formed on the flange 12122.

Alternatively, the tray 12121 may be a circular tray, a square tray, an elliptical tray, or the like, which is not particularly limited herein. The flange 12122 may extend outward from the bottom surface of the tray 12121, or may extend outward from the top surface of the tray 12121, and the direction in which the flange 12122 extends may be parallel to the rotation axis of the resonator 121, or may be inclined with respect to the rotation axis of the resonator 121. The flange 12122 may be integrally connected with the tray 12121, for example, the flange 12122 is formed by folding an outer periphery of the tray 12121; the flange 12122 may be connected to the plate 12121 separately, for example, the flange 12122 and the plate 12121 may be welded to each other after being molded separately.

By opening the tuning opening 1213 on the flange 12122, the opening area of the tuning opening 1213 can be effectively increased, so that the variation of the coupling area between the resonator 120 and the other resonators 120 can be effectively increased, and the adjustment of the coupling strength between the two resonators 120 in the filter 100 can be effectively increased.

Of course, in other embodiments, the decoupling port 1213 may also be formed on the disc 12121, and when the decoupling port 1213 is formed on the disc 12121, the decoupling port 1213 penetrates through the disc 12121 along the thickness direction of the disc 12121.

In some embodiments of the present application, referring to fig. 3 to 5, the resonator 120 further includes a capacitive loading member 122, and the capacitive loading member 122 is spaced apart from the resonant disk 1212 to form a capacitor 124.

It will be appreciated that both the capacitive loading member 122 and the resonating plate 1212 are fabricated from conductive materials. The capacitive loading member 122 may be coupled to the resonant beam 1211 or may be coupled to the housing 110 of the filter 100. Specifically, the capacitive loading member 122 includes a loading portion 1221 and a connection portion 1222 connected to the loading portion 1221, the loading portion 1221 being spaced apart from the resonance disk 1212 to form the capacitance 124. Alternatively, the shape structure of the loading portion 1221 may be, but not limited to, a cylindrical structure, a plate-like structure, or the like, and is not particularly limited herein. The connection portion 1222 may be connected to the housing 110 of the filter 100, and the connection portion 1222 may be integrally connected to the housing 110 of the filter 100, or may be separately connected to the housing 110 of the filter 100, for example, threaded connection, plugging, or clamping, which is not specifically limited herein. The connection portion 1222 may be connected to the resonance rod 1211, and the connection portion 1222 may be integrally connected to the resonance rod 1211, or may be separately connected to the resonance rod 1211, for example, by screwing, plugging, or clamping, which is not particularly limited herein.

By adopting the technical scheme, the capacitance 124 loading capacity of the resonator 120 is effectively increased, so that the resonance frequency of the filter 100 adopting the resonator 120 provided by the embodiment of the application is effectively reduced.

In some embodiments of the present application, referring to fig. 5, the resonant disk 1212 includes a disk 12121 connected to the resonant beam 1211 and a flange 12122 connected to the disk 12121, wherein a side of the flange 12122 adjacent to the resonant beam 1211 is disposed opposite the capacitive load 122 at a distance to form the capacitor 124.

Specifically, a side of the flange 12122 near the resonance rod 1211 is disposed at an opposite interval to the loading portion 1221 of the capacitive loading member 122 to form the capacitor 124. For example, the loading portion 1221 of the capacitive loading member 122 has a cylindrical structure, the loading portion 1221 is sleeved on the resonant rod 1211, and a side of the flange 12122 near the resonant rod 1211 is disposed at a distance from the loading portion 1221, so as to form the capacitor 124.

By arranging the flanges 12122 and the capacitive loading piece 122 at opposite intervals, the relative areas of the flanges 12122 and the capacitive loading piece 122 are larger, so that the capacitance of the capacitor 124 is effectively increased, the loading capacity of the capacitor 124 of the resonator 120 is further increased, and the resonance frequency of the filter 100 adopting the resonator 120 provided by the embodiment of the application is further reduced.

Referring to fig. 1 and fig. 2 together, the embodiment of the present application further provides a filter 100, including a housing 110 and the resonator 120 of any of the above embodiments, and the resonator element 121 is rotatably installed in the housing 110.

Specifically, the filter 100 housing 110 includes a cavity 111 and a cover plate 112. The cavity 111 is a metal piece, the cavity 111 has a resonant cavity, and the resonator 120 is disposed in the resonant cavity. The cover plate 112 may be a single-layer cover plate 112 or a multi-layer cover plate 112, and the cover plate 112 is covered on the cavity 111 to isolate the resonant cavity from the external environment of the filter 100, thereby realizing the shielding function of the filter 100 and preventing signal leakage. The laminate of the cover plate 112, which at least participates in covering the cavity 111, is a metal piece.

The number of resonators is plural. Among the plurality of resonators, only one resonator may be applied to the resonator 120 provided in the embodiment of the present application, or a part of the resonators may be applied to the resonator 120 provided in the embodiment of the present application, or all of the resonators may be applied to the resonator 120 provided in the embodiment of the present application.

The filter 100 provided in the embodiment of the present application adopts the resonator 120 of any one of the embodiments, so that the volume of the filter 100 is effectively reduced, and the miniaturization development of the filter 100 is facilitated.

In some embodiments of the present application, referring to fig. 3 to 7, the resonator 120 further includes an adjusting member 123, a wall of the housing 110 is provided with a first through hole 1111, the adjusting member 123 is rotatably installed in the first through hole 1111, and the adjusting member 123 rotates synchronously with the resonator 121.

Specifically, the cavity 111 of the housing 110 is provided with a first through hole 1111, and the first through hole 1111 penetrates from an outer wall surface of the cavity 111 to the resonant cavity, in other words, at least a portion of the adjusting member 123 can be exposed to the external environment of the filter 100 through the first through hole 1111.

The adjusting member 123 may be made of a metal material, which may be, but is not limited to, steel, aluminum, copper, iron, aluminum alloy, etc., and is not particularly limited herein. The adjusting member 123 may also be made of a non-metal material, which may be, but not limited to, rubber, plastic, etc., and is not particularly limited herein. The regulating member 123 has a gap with the wall of the first through hole 1111 so that the regulating member 123 can rotate within the first through hole 1111. The adjusting member 123 is fixedly connected with the resonating member 121 such that the resonating member 121 can rotate in synchronization with the adjusting member 123. The adjusting member 123 and the resonating member 121 may be integrally connected, for example, when both the adjusting member 123 and the resonating member 121 are made of a metal material, the adjusting member 123 and the resonating member 121 are integrally formed through a casting process; for another example, when the adjusting member 123 is made of plastic and the resonating member 121 is made of metal, the adjusting member 123 and the resonating member 121 are integrally formed through an injection molding process. The adjusting member 123 and the resonator member 121 may be separately connected, such as a fastening connection, a clamping connection, an interference fit connection, etc., which is not particularly limited herein.

By adopting the above technical solution, after the assembly operation of the filter 100 is completed, the adjusting member 123 may be rotated outside the filter 100 to drive the resonant member 121 to rotate, so as to adjust the coupling strength between the two resonators 120 in the filter 100. In this way, the coupling strength between the two resonators 120 in the filter 100 can be adjusted without disassembling and assembling the filter 100, and the convenience in use of the filter 100 is effectively improved.

In some embodiments of the present application, referring to fig. 7, an end of the adjusting member 123 away from the resonator 121 is provided with an adjusting groove 1231, and the adjusting groove 1231 is matched with an external tool to rotate the adjusting member 123.

The adjustment groove 1231 is formed by a recess of an end of the adjustment member 123 remote from the resonance member 121 in the axial direction of the adjustment member 123. The adjusting groove 1231 may be, but is not limited to, a straight groove, a cross groove, an add-subtract groove, an inner triangle groove, an inner hexagon groove, a plum blossom straight groove, etc., and is not particularly limited herein.

Through adopting above-mentioned scheme, can cooperate with adjustment groove 1231 with the help of external instrument such as screwdriver, allen wrench to be convenient for apply a force and drive adjusting part 123 and rotate in first through-hole 1111, and then drive resonance piece 121 and rotate in step, thereby realize adjusting the coupling strength between two resonators 120 in filter 100, can effectively ensure and improve the convenience of the coupling adjustment operation of filter 100.

In some embodiments, the adjusting groove 1231 may further penetrate through the outer peripheral wall of the adjusting member 123, so, when the adjusting member 123 is penetrated through the first through hole 1111 or other hole structures, one end of the adjusting member 123 far away from the resonant member 121 can be folded under the extrusion action of the hole wall, so that the adjusting member 123 can rapidly penetrate through any hole structure, thereby effectively improving the assembly convenience of the adjusting member 123.

In some embodiments of the present application, referring to fig. 7, the adjusting member 123 is provided with a limiting structure, and the limiting structure cooperates with the resonant member 121 to limit the position of the resonant member 121 in the axial direction of the adjusting member 123.

Specifically, the limiting structure includes a first flange 1232 disposed at one end of the adjusting member 123, where the first flange 1232 abuts against the capacitive loading member 122 or the cavity 111, and the other end of the adjusting member 123 is connected to the resonant member 121 to limit the position of the resonant member 121 in the axial direction of the adjusting member 123.

In some embodiments, when the resonator 120 further includes the capacitive loading member 122 and the connection portion 1222 of the capacitive loading member 122 is connected to the housing 110, the connection portion 1222 of the capacitive loading member 122 may be inserted into the first through hole 1111 and be in interference fit with the wall of the first through hole 1111, the connection portion 1222 is provided with a second through hole, and the adjusting member 123 is connected to the resonator 121 through the second through hole, and it can be appreciated that a certain gap is provided between the adjusting member 123 and the wall of the second through hole, so that the adjusting member 123 can rotate in the second through hole. The first flange 1232 abuts against one side of the connection portion 1222 away from the resonant member 121, the resonant member 121 abuts against the connection portion 1222, and the other end of the adjusting member 123 passes through the second through hole of the connection portion 1222 to be connected with the resonant member 121, so as to limit the position of the resonant member 121 in the axial direction of the adjusting member 123.

In other embodiments, when the resonator 120 does not include the capacitive loading member 122 or the resonator 120 includes the capacitive loading member 122 but the connection portion 1222 of the capacitive loading member 122 is connected to the resonant rod 1211, the first through hole 1111 may be configured as a stepped hole, one end of the adjusting member 123 is provided with a first flange 1232, the first flange 1232 abuts against a stepped portion of the first through hole 1111, the resonant member 121 abuts against a wall of the cavity 111, and the other end of the adjusting member 123 passes through the first through hole 1111 to be connected to the resonant member 121, so as to limit the position of the resonant member 121 in the axial direction of the adjusting member 123.

By adopting the above scheme, the position of the resonator 121 in the axial direction of the adjusting member 123 is effectively limited, and the resonator 120 is prevented from moving in the axial direction of the resonator 120 after being mounted to the housing 110 of the filter 100, thereby effectively improving the working stability of the filter 100.

In other embodiments, the limiting structure may further include a second flange 1233 disposed at one end of the adjusting member 123 near the resonator 121, wherein a third through hole is formed in the resonator 121, the adjusting member 123 is disposed through the third through hole, and the second flange 1233 abuts against a port edge of the third through hole facing away from the first through hole 1111, so as to further limit the position of the resonator 121 in the axial direction of the adjusting member 123.

In some embodiments of the present application, referring to fig. 6 and fig. 7 together, an end of the adjusting member 123 away from the resonant member 121 is flush with a port of the first through hole 1111 away from the resonant member 121.

In other embodiments of the present application, an end of the adjusting member 123 remote from the resonator member 121 is concavely disposed in the first through hole 1111.

In other words, the end of the adjusting member 123 far away from the resonator 121 does not protrude from the end of the first through hole 1111 far away from the resonator 121, by adopting the above technical solution, the flatness of the outer wall surface of the filter 100 is effectively maintained, and the overall height of the filter 100 can be reduced, thereby further reducing the volume of the filter 100, and being more beneficial to the realization of the miniaturization development of the filter 100.

In some embodiments of the present application, the filter 100 further includes a signal shielding medium (not shown) disposed within the first through hole 1111.

The signal shielding medium is used to shield the overflow signal between the regulator 123 and the housing 110. Alternatively, the signal shielding medium may be, but is not limited to, a shielding paste, a shielding metal, a shielding fiber, etc., and is not particularly limited herein.

By adopting the above scheme, after the adjustment operation of the coupling strength between the two resonators 120 is completed, the first through hole 1111 is filled with the signal shielding medium, so that the gap between the adjusting member 123 and the wall of the first through hole 1111 is plugged, thereby effectively reducing the risk of signal leakage, and effectively guaranteeing and improving the performance of the filter 100.

The present embodiment also provides a communication device including the filter 100 of any one of the above embodiments.

The communication device provided in the embodiment of the present application adopts the filter 100 of any one of the embodiments, thereby effectively reducing the volume of the communication device and being beneficial to the miniaturization development of the communication device.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (12)

1. A resonator, characterized by: the resonator comprises a resonance piece, the resonance piece is rotatably arranged in a shell of the filter, and the resonance piece is provided with a coupling adjusting opening, and the coupling adjusting opening is eccentrically arranged relative to the rotation axis of the resonance piece.

2. A resonator as claimed in claim 1, characterized in that: the resonance piece comprises a resonance rod rotatably arranged on the shell of the filter and a resonance disc connected to the resonance rod, and the coupling adjusting opening is formed in the resonance disc.

3. A resonator as claimed in claim 2, characterized in that: the resonance disc comprises a disc body connected with the resonance rod and a flange connected with the disc body, and the coupling adjusting opening is formed in the flange.

4. A resonator as claimed in claim 2, characterized in that: the resonator also comprises a capacitor loading part sleeved on the resonant rod, and the capacitor loading part and the resonant disc are arranged at intervals to form a capacitor.

5. The resonator of claim 4, wherein: the resonance disc comprises a disc body connected with the resonance rod and a turned-over edge connected with the disc body, and one side of the turned-over edge, which is close to the resonance rod, is arranged at an opposite interval with the capacitor loading part to form the capacitor.

6. A filter, characterized by: the filter comprising a housing and a resonator as claimed in any one of claims 1 to 5, the resonator element being rotatably mounted in the housing.

7. The filter of claim 6, wherein: the resonator further comprises an adjusting piece, a first through hole is formed in the wall body of the shell, the adjusting piece is rotatably installed in the first through hole, and the adjusting piece and the resonating piece rotate synchronously.

8. The filter of claim 7, wherein: and one end of the adjusting piece, which is far away from the resonance piece, is provided with an adjusting groove, and the adjusting groove is matched with an external tool so as to enable the adjusting piece to rotate.

9. The filter of claim 7, wherein: the adjusting piece is provided with a limiting structure, and the limiting structure is matched with the resonant piece to limit the position of the resonant piece in the axial direction of the adjusting piece.

10. The filter of claim 7, wherein:

one end of the adjusting piece, which is far away from the resonance piece, is flush with a port of the first through hole, which is far away from the resonance piece; or alternatively, the process may be performed,

one end of the adjusting piece, which is far away from the resonance piece, is concavely arranged in the first through hole.

11. The filter of claim 7, wherein: the filter further includes a signal shielding medium disposed within the first via.

12. A communication device, characterized by: the communication device comprising a filter according to any of claims 6-11.

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