WO2018119669A1 - 谐振器及通信装置 - Google Patents

谐振器及通信装置 Download PDF

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Publication number
WO2018119669A1
WO2018119669A1 PCT/CN2016/112384 CN2016112384W WO2018119669A1 WO 2018119669 A1 WO2018119669 A1 WO 2018119669A1 CN 2016112384 W CN2016112384 W CN 2016112384W WO 2018119669 A1 WO2018119669 A1 WO 2018119669A1
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WO
WIPO (PCT)
Prior art keywords
boss
resonant rod
dielectric block
elastic
end surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/112384
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English (en)
French (fr)
Inventor
袁本贵
郭玲
包翔宇
丁文其
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201680091775.1A priority Critical patent/CN110088978B/zh
Priority to BR112019013302-0A priority patent/BR112019013302B1/pt
Priority to EP16925836.5A priority patent/EP3553880B1/en
Priority to PCT/CN2016/112384 priority patent/WO2018119669A1/zh
Publication of WO2018119669A1 publication Critical patent/WO2018119669A1/zh
Priority to US16/453,804 priority patent/US10840577B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/04—Coaxial resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/10—Dielectric resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/2002—Dielectric waveguide filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/30—Auxiliary devices for compensation of, or protection against, temperature or moisture effects ; for improving power handling capability

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a resonator.
  • the cavity resonator in the prior art is provided with a resonance rod and a dielectric material.
  • the dielectric material is installed between the cover body and the resonance rod, and is coupled to the dielectric material and the resonance rod through the cover body through the tuning screw to realize the tuning of the resonator.
  • the technical problem to be solved by the embodiments of the present application is to provide a resonator that can be miniaturized, easy to install, easy to disassemble, and can improve the reliability of the performance of the resonator.
  • a resonator including a housing and a cover body, wherein the housing is provided with a receiving cavity, and the receiving cavity is provided with a resonant rod, a dielectric block and an elastic component, and the cover is assembled to the shell
  • the resonant rod has a cylindrical shape and includes an inner side surface, an outer side surface, and a first end surface connected between the inner side surface and the outer side surface;
  • the dielectric block includes a bottom end and a top end, and the top end is connected to
  • the cover body is provided with a second end surface and a boss protruding from the second end surface, the boss is annular; the first end surface is opposite to the second end surface;
  • the boss is embedded in the resonant rod surrounded by the inner side, or the boss is sleeved on the outside of the resonant rod and surrounds the outer side;
  • the elastic element is connected to the first end face and the The elastic member is electrically conductive between the second end faces and/or between the top end
  • the assembly position between the dielectric block and the resonant rod is realized by the outer casing or the in-line fitting manner between the boss and the resonant rod, and then connected by the elastic member. Between an end surface and the second end surface and/or the top end of the dielectric block and the cover body The tight connection between the resonant rod, the dielectric block and the cover is realized.
  • the outer or outer fit of the boss and the resonant rod makes the resonator of the present application easy to position during assembly, easy to install, and the dielectric block and the resonant rod partially overlap in the radial direction, which is advantageous for the resonator to be small. Design.
  • the present application can ensure the reliability of the resonator, and has higher unloaded Q value and passive intermodulation performance than the conventional medium loading technology.
  • the boss is located at a periphery of the second end surface, the boss includes an opposite outer surface, an inner surface, and a third end surface connected between the outer surface and the inner surface
  • the dielectric block includes a columnar body, the second end surface is a bottom surface of the columnar body, a top surface of the columnar body faces the cover body, an outer surface of the boss and a side surface of the columnar body Coplanar, the inner surface of the boss faces the outer side of the resonant rod.
  • the boss and the resonant rod have a jacket structure, and the outer surface of the boss is coplanar with the side surface of the column body, so that the outer surface of the dielectric block is smooth and excessive, and there is no obvious step. Conducive to uniform current transmission, improve unloaded Q and passive intermodulation performance.
  • the second end surface contacts the first end surface
  • an inner surface of the boss contacts an outer side surface of the resonant rod
  • the elastic element is disposed at the top end of the dielectric block Between the covers.
  • the elastic member is disposed between the cover body and the dielectric block, and the dielectric block and the resonant rod are in close contact with each other, and the elastic member can be first fixed to the cover body, thereby facilitating the cooperation of the boss and the resonant rod to position the dielectric block to The top surface of the resonant rod is pressed against the top of the dielectric block, which is simple and convenient to assemble and saves man-hours.
  • the elastic element includes a limiting portion and an elastic portion, wherein the limiting portion has an annular shape, and the elastic portion is bent and extended from the limiting portion toward a center of the limiting portion.
  • the limiting portion is sleeved on a periphery of the resonant rod, the limiting portion is located between an inner surface of the boss and the outer side surface of the resonant rod, and the elastic portion is connected to the first portion Between the two end faces and the first end face.
  • the elastic element is disposed between the dielectric block and the resonance, and a structure of a stack is formed between the three, the elastic element is sleeved on the top of the resonant rod, and the boss portion of the dielectric block is sleeved on the outside of the elastic element for convenient installation. Positioning.
  • the elastic portion is provided with at least one slot, and an elastic contact structure is formed on the elastic portion by the arrangement of the slot, the elastic contact structure abuts against the second end surface and Between the first end faces.
  • the boss is located at an inner edge of the second end surface, the boss includes an opposite outer surface, an inner surface, and a third portion connected between the outer surface and the inner surface End face
  • the dielectric block includes a columnar body, the column body is provided with a central through hole, an inner surface of the boss is coplanar with an inner wall of the central through hole, and an outer surface of the boss faces the resonator rod Said inside side.
  • the boss and the resonant rod are in an in-line structure, and the inner surface of the boss is coplanar with the inner wall of the central through hole of the dielectric block, so that the inner surface of the dielectric block is smooth and excessive, and there is no obvious step. It is conducive to uniform current transmission and improves the unloaded Q value and passive intermodulation performance.
  • the second end surface contacts the first end surface
  • an outer surface of the boss contacts an inner side surface of the resonant rod
  • the elastic element is disposed at the top end of the dielectric block Between the covers.
  • the elastic element includes a limiting portion and an elastic portion, the limiting portion has an annular shape, and the elastic portion is bent and extended from the limiting portion in a direction away from a center of the limiting portion.
  • the limiting portion is embedded in an inner side of the resonant rod, the limiting portion is located between an outer surface of the protruding portion and the inner side surface of the resonant rod, and the elastic portion is coupled to the Between the second end surface and the first end surface.
  • the boss and the resonant rod have an in-line structure
  • the elastic member forms a laminated embedded structure between the two, that is, the limiting portion of the elastic member is embedded inside the resonant rod, and the protruding portion is embedded in the elastic member.
  • the inside of the seat is convenient for installation and positioning.
  • the elastic portion is provided with at least one slot, and an elastic contact structure is formed on the elastic portion by the arrangement of the slot, the elastic contact structure abuts against the second end surface and Between the first end faces.
  • the cover is an elastic cover.
  • the resilient cover continues to a uniform pressure to the dielectric block, resulting in intimate contact between the dielectric block and the resonance.
  • the bottom end and the top end of the dielectric block are provided with a conductive coating.
  • the dielectric block has a dielectric constant greater than one.
  • the material of the elastic element is a unitary structure.
  • the resonant rod is integrally formed with the housing, the housing includes a bottom wall, the bottom wall faces the cover, and the resonant rod faces the cover from the bottom wall Extend vertically.
  • the resonant rod and the housing are of a split structure.
  • the present application further provides a communication device comprising at least one of the resonators of any of the preceding claims.
  • the communication device can be a filter, duplexer, multiplexer, or other communication device.
  • FIG. 1 is a perspective exploded view of a resonator provided by an embodiment of the present application.
  • Figure 2 is a cross-sectional, exploded view of the resonator of Figure 1.
  • FIG. 3 is a schematic cross-sectional assembly view of the resonator shown in FIG. 1.
  • FIG. 4 is a perspective exploded view of a resonator provided by another embodiment of the present application.
  • Fig. 5 is a cross-sectional, exploded view of the resonator shown in Fig. 4.
  • Figure 6 is a schematic cross-sectional view showing the resonator of Figure 4.
  • Fig. 7 is an enlarged schematic view showing an elastic member in the resonator shown in Fig. 1.
  • Figure 8 is an enlarged schematic view of the elastic member in the resonator shown in Figure 4.
  • FIG. 9 is a comparison of Q values of a resonator provided by an embodiment of the present application and a conventional resonator under the same volume.
  • FIG. 10 is a temperature compensation comparison of a resonator provided by an embodiment of the present application and a conventional resonator under the same volume.
  • the present application provides a resonator and a communication device including the resonator.
  • the communication device in the present application may be a filter, a duplexer, a multiplexer or other communication device.
  • 1 to 3 are schematic views of a resonator provided by an embodiment of the present application.
  • 4 to 6 are schematic views of a resonator provided by another embodiment of the present application. The difference between the two embodiments lies in the connection structure between the inner dielectric block, the elastic element and the resonant rod.
  • the resonator of the embodiment shown in Figs. 1 to 3 will be described below first.
  • the resonator includes a housing 10 and a cover body 20 .
  • the housing 10 defines a receiving cavity 11 .
  • the receiving cavity 11 is provided with a resonant rod 30 , a dielectric block 40 and an elastic component. 50
  • the cover 20 is mounted on the housing 10, and the cover 20 mounts the dielectric block 40 and the elastic member 50 against the resonant rod 30, that is, the dielectric block 40 and the elastic member 50 are coupled to the resonant rod 30 and the cover.
  • the elastic member 50 has a conductive property.
  • the elastic member 50 is made of a conductive material and may be a metal dome.
  • the surface of the elastic member 50 is covered with a conductive material, and the conductive layer is coated with a non-conductive layer.
  • the resonator may further include a tuning screw (not shown) through which the tuning screw extends into the dielectric block 40 and/or harmonics. Inside the horn 30, the resonator is tuned.
  • the housing 10 is a metal cavity structure, and the housing 10 may be entirely made of a metal material or a cavity including at least an inner surface metallization, and the receiving cavity 11 in the housing 10 is a resonant cavity.
  • the housing 10 includes a bottom wall and an open end, the bottom wall facing the open end.
  • the resonance rod 30 is disposed on the bottom wall.
  • the cover 20 covers the open end and is fixed to the housing 10.
  • the cover 20 can be a separate plate (having a simple cover function).
  • the cover 20 can also be a Printed Circuit Board (PCB) board, that is, the cover The functional integration of the board and the PCB board allows the cover to function as a PCB carrying the electronic components. When the PCB is mounted and fixed to the housing 10 and covers the open end, the PCB is used as the cover 20.
  • PCB Printed Circuit Board
  • the dielectric block 40 is disposed in a capacitor region in the receiving cavity 11.
  • the capacitance region refers to a region between the resonance rod 30 and the lid body 20.
  • the capacitor region has a strong electric field strength, and the region between the resonance rod 30 and the cover 20 is the strongest electric field.
  • the dielectric constant ⁇ r of the dielectric block 40 is greater than one. Since the breakdown field strength of the dielectric block 40 tends to be several times or even tens of times higher than the air breakdown field strength, the power capacity of the resonator provided by the present application is significantly improved by the arrangement of the dielectric block 40.
  • the dielectric material of the dielectric block 40 has a quality factor Qf greater than 1000 to reduce dielectric loss.
  • Qf is 1000 is the boundary line between the dielectric material is plastic or ceramic.
  • the quality factor is the reciprocal of the dielectric loss of the dielectric material.
  • the dielectric block 40 is made of ceramic, single crystal quartz or aluminum oxide.
  • the resonant rod 30 has a cylindrical shape and includes an inner side surface 32, an outer side surface 34, and a first end surface 36 connected between the inner side surface 32 and the outer side surface 34.
  • the first end face 36 is located on a side of the resonant rod 30 that is away from the bottom wall and faces the cover 20.
  • the resonance rod 30 has a cylindrical shape, and a columnar passage 37 is provided inside.
  • the dielectric block 40 includes a bottom end and a top end, the top end is connected to the cover body 20, and the bottom end is provided with a second end surface 46 and a boss 44 protruding from the second end surface 46,
  • the boss 44 has an annular shape.
  • the dielectric block 40 has a cylindrical shape as a whole and includes a central through hole 47 having a circular or other shape in a radial direction, and the central through hole 47 communicates with the passage 37 of the resonance rod 30 and Between the through holes of the cover body 20 through which the tuning screws pass.
  • the passage 37 of the resonant rod 30, the central through hole 47 of the dielectric block 40, and the through hole on the cover 20 may be co-centered.
  • the first end surface 36 is opposite to the second end surface 46.
  • the dielectric block 40 may not have a central through hole, that is, the dielectric block 40 has a solid structure. In this case, the cover 20 does not need to be provided with a through hole through which the tuning screw passes.
  • the boss 44 is sleeved on the outside of the resonant rod 30 and surrounds the outer side 34. In the embodiment shown in FIGS. 4-6, the boss 44 is embedded in the center. The resonant rod 30 is surrounded by the inner side 32. The cooperation between the dielectric block 40 and the resonance provided by the two embodiments is within the scope of the present application.
  • the elastic member 50 is connected between the first end surface 36 and the second end surface 46.
  • the elastic member 50 may be an annular elastic gasket.
  • the elastic force is generated by the elastic deformation of the elastic member 50, so that the elastic relationship between the dielectric block 40 and the resonant rod 30 and between the dielectric block 40 and the cover 20 is tightly pressed. Effectively increase the anti-interference ability of the resonator and improve the electrical performance.
  • the boss 44 is located at the periphery of the second end surface 46, and the boss 44 includes an opposite outer surface, an inner surface, and a third portion connected between the outer surface and the inner surface.
  • the end surface 442 the dielectric block 40 includes a columnar body 42 , the second end surface 46 is a bottom surface of the columnar body 42 , and a top surface of the columnar body 42 faces the cover body 20 , the boss 44
  • the outer surface is coplanar with the side of the columnar body 42, and the inner surface of the boss 44 faces the outer side 34 of the resonant rod 30.
  • the boss 44 and the resonant rod 30 are of a jacket type, and the outer surface of the boss 44 is coplanar with the side surface of the column body 42, so that the outer surface of the dielectric block 40 is smooth. No obvious step, which is conducive to uniform current transmission, improve unloaded Q value and improve passive intermodulation performance.
  • the elastic member 50 includes a limiting portion 52 and an elastic portion 54 .
  • the limiting portion 52 has an annular shape, and the elastic portion 54 extends from the limiting portion 52 toward the center of the limiting portion 52 .
  • the limiting portion 52 is sleeved on the outer periphery of the resonant rod 30, and the limiting portion 52 is located on the inner surface of the boss 44 and the outer side surface 34 of the resonant rod 30.
  • the elastic portion 54 is coupled between the second end surface 46 and the first end surface 36.
  • the elastic member 50 is disposed between the dielectric block 40 and the resonant rod 30, and a structure of a stack is formed between the three, specifically a radially stacked structure.
  • the elastic member 50 is sleeved on the top of the resonant rod 30, and the medium
  • the boss 44 of the block 40 is partially fitted over the outer portion of the resilient member 50 for ease of mounting and positioning.
  • the elastic portion 54 is provided with a slot 542, and the number of the slots 542 may be one, two or more.
  • the plurality of slots 542 are circumferentially spaced apart from each other, and an elastic contact structure is formed between the adjacent slots 542, and the elastic contact structure abuts between the second end surface 46 and the first end surface 36.
  • the elastic member 50 may also be attached to the top end of the dielectric block 40.
  • the structural form of the elastic member may be different from the structure of the foregoing elastic member 50, and a conventional elastic spacer or
  • the metal elastic piece (the shape is not limited, as long as the elastic contact between the dielectric block 40 and the cover body 20 can be realized) is disposed between the dielectric block 40 and the cover body 20, and the elastic member can be fixed to one side of the cover 40, It can be fixed on one side of the dielectric block 40, and the specific fixing manner can be screw fixing, fixing by glue, and the like.
  • the dielectric block 40 can be in direct contact with the resonant rod 30.
  • the second end surface 46 contacts the first end surface 36, and the inner surface of the boss 44 contacts the outer side surface 34 of the resonant rod 30.
  • the elastic member 50 is disposed between the cover 20 and the dielectric block 40, and the dielectric block 40 and the resonant rod 30 are in close contact with each other, and the elastic member 50 can be first fixed to the cover 20, and the boss 44 and the resonance are utilized.
  • the cooperation of the rod 30 positions the dielectric block 40 to the top surface of the resonant rod 30, and then presses the cover 20 against the top end of the dielectric block 40.
  • the boss 44 is embedded in the resonant rod 30 surrounded by the inner side surface 32 .
  • the boss 44 is located at an inner edge of the second end surface 46.
  • the boss 44 includes an opposite outer surface, an inner surface, and a third end surface 442 connected between the outer surface and the inner surface.
  • the dielectric block 40 includes a columnar body 42 having a central through hole 47 therein, and an inner surface of the boss 44 is coplanar with an inner wall of the center through hole 47, and an outer surface of the boss 44 Facing the inner side surface 32 of the resonant rod 30.
  • the boss 44 and the resonant rod 30 are in an in-line structure, and the inner surface of the boss 44 is coplanar with the inner wall of the central through hole 47 of the dielectric block 40, so that the inner surface of the dielectric block 40 Smooth over-excession, no obvious step, which is conducive to uniform current transmission, improve unloaded Q value and improve passive intermodulation performance.
  • the dielectric block 40 may not have a central through hole, that is, the dielectric block 40 has a solid structure.
  • the boss 44 is also a solid structure including an outer surface and a third end surface, and the cover body 20 is also There is no need to set a through hole for the tuning screw to pass through.
  • the elastic member 50 includes an annular limiting portion 52 and an elastic portion 54 .
  • the elastic portion 54 extends away from the limiting portion 52. The direction of the center of the limiting portion 52 is bent and extended.
  • the limiting portion 52 is embedded in the inner side of the resonant rod 30.
  • the limiting portion 52 is located on the outer surface of the boss 44 and the resonant rod 30.
  • the elastic portion 54 is connected between the second side surface 46 and the first end surface 36 between the inner side surfaces 32.
  • the elastic member 50 forms a laminated embedded structure between the boss 44 and the resonant rod 30, that is, the limiting portion 52 of the elastic member 50 is embedded inside the resonant rod 30, and the boss 44 is embedded in the limiting portion of the elastic member 50. 52 Inside, easy to install and position.
  • the elastic portion 54 is provided with a slot 542, and the number of the slots 542 may be one, two or more.
  • the plurality of slots 542 are circumferentially spaced apart from each other, and an elastic contact structure is formed between the adjacent slots 542.
  • the elastic contact structure abuts between the second end surface 46 and the first end surface 36.
  • the purpose of the provision of the slot 542 is to form a resilient contact structure.
  • the elastic member 50 may also be coupled between the top end of the dielectric block 40 and the cover 20, and the dielectric block 40 and the resonant rod 30 are in direct contact.
  • the second end surface 46 contacts the first end surface 36, and an outer surface of the boss 44 contacts the inner side surface 32 of the resonant rod 30.
  • the cover body 20 may be an elastic cover body, and the position of the cover body 20 combined with the dielectric block 40 is provided with an elastic portion for forming an elastic pressing force in a direction perpendicular to the cover body 20. .
  • the resilient cover 20 continues to a uniform pressure to the dielectric block 40 such that a close contact is formed between the dielectric block 40 and the resonance.
  • the elastic member 50 may be disposed between the dielectric block 40 and the resonant rod 30, or between the dielectric block 40 and the cover 20, or between the dielectric block 40 and the resonant rod 30, and between the dielectric block 40 and the cover 20. Elastic elements are placed between them.
  • the elastic cover can be used regardless of where the elastic member 50 is disposed. Since the function of the elastic cover is to assist the crimping of the cover body to the dielectric block 40 and the resonance rod 30, the pressure is more balanced.
  • the function of the elastic member 50 is to achieve a tight connection between the dielectric block 40 and the resonant rod 30.
  • the connection of the two elastic elements is independent of each other.
  • the structure and shape of the elastic member 50 are not limited to the structures described in the present application, and may be other shapes and configurations as long as the first end face 36 and the second end face are secured.
  • a flexible abutment can be achieved between 46.
  • the bottom end and the top end of the dielectric block 40 are provided with a conductive coating.
  • the function of the conductive coating is to achieve a path of electromagnetic transfer, along the surface of the bottom and top ends, without penetrating into the interior of the dielectric block 40, which reduces the attenuation of electromagnetic conduction.
  • the conductive coating is a metal such as silver or copper.
  • the elastic element 50 is of unitary construction.
  • the elastic member 50 is integrally molded by a process such as punching, machining, and the like.
  • the material of the elastic member 50 is beryllium copper, and the beryllium copper is a material that has good deformability and can be recovered.
  • the resonant rod 30 is integrally formed with the housing 10, the housing 10 includes a bottom wall, the bottom wall faces the cover 20, and the resonant rod 30 is from the Bottom wall orientation
  • the cover 20 extends vertically.
  • the position of the bottom of the resonant rod 30 combined with the bottom wall can be designed with an integrated rounding to avoid the presence of sharp corners, which can reduce the occurrence of non-linear regions and improve the passive intermodulation performance.
  • the structure of the resonant rod 30 and the housing 10 may be integrally formed in the housing 10 or may be die-cast.
  • the internal resonant rod of the housing 10 may be in the form of a gradient triangle or a step transition.
  • the resonant rod 30 and the housing 10 are of a split structure, and the resonant rod 30 can be fixedly connected to the housing 10 by screws or connected to the housing 10 by welding.
  • the present application realizes assembly positioning between the dielectric block 40 and the resonant rod 30 by providing a boss 44 at the bottom end of the dielectric block 40, and by fitting or inlaying between the boss 44 and the resonant rod 30.
  • the positioning method allows the position of the dielectric block 40 to be reliably determined during the assembly process, and is also disassembled.
  • the resonant rod 30 and the dielectric block 40 are realized by being connected between the first end surface 36 and the second end surface 46 or between the top end of the dielectric block 40 and the cover body 20 through the elastic member 50. A tight connection between the covers 20.
  • the manner of fitting or embedding between the boss 44 and the resonant rod 30 makes the resonator of the present application easy to position during assembly, easy to install, and the dielectric block 40 partially overlaps the resonant rod 30 in the radial direction. Conducive to the design of the miniaturization of the resonator. Moreover, the present application can ensure the reliability of the resonator, and has higher unloaded Q value and improved passive intermodulation performance than the conventional medium loading technology. The present application is suitable for a resonator of high power capacity, and has good temperature drift performance and intermodulation performance.
  • the dielectric block 40 and the resonant rod 30 of the present application together form a resonant structure in the resonator cavity, and the height ratio of the dielectric block 40 and the resonant rod 30 can be reasonably distributed according to the demand of the operating frequency, and the height refers to the direction perpendicular to the cover 20 The size on the top. By adjusting the height ratio, it is possible to reduce the size of the resonator to achieve miniaturization.
  • FIG. 9 is a comparison of Q values of a resonator provided by an embodiment of the present application and a conventional resonator under the same volume. It can be seen that the present application can achieve lower frequencies and maintain relatively high Q values and power in a smaller volume than conventional techniques. Since the position where the dielectric block 40 and the resonance rod 30 are combined is provided with a radially laminated structure, the Q value sacrificed without the step impedance is retained, and the maximum Q value is retained.
  • FIG. 10 is a temperature compensation comparison of a resonator provided by an embodiment of the present application and a conventional resonator under the same volume.
  • This application has a small temperature drift capability.
  • the traditional medium loading technology requires the dielectric block and the resonant rod 30 to simultaneously adjust the expansion coefficient to achieve a better temperature drift range of the resonator, which is more difficult.
  • the resonance rod 30 can be integrated with the cavity, the expansion system is The number is the same, only need to optimize the temperature coefficient of the medium, with a small temperature drift characteristics.

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Abstract

本申请提供了一种谐振器，包括壳体和盖体，壳体的收容腔内设谐振杆、介质块及弹性元件，所述谐振杆呈筒状且包括内侧面、外侧面及连接在所述内侧面和所述外侧面之间的第一端面；所述介质块包括底端和顶端，所述顶端连接至所述盖体，所述底端设有第二端面和突设于所述第二端面上的凸台，所述凸台呈环状；第一端面与第二端面相对；所述凸台内嵌至所述谐振杆被所述内侧面包围，或者所述凸台套在所述谐振杆的外部且包围所述外侧面；所述弹性元件连接在所述第一端面和所述第二端面之间或者所述介质块的所述顶端与所述盖体之间。本申请还提供一种通信装置。本申请提供的谐振器易安装，易拆卸，并能够提升可靠性。

Description

谐振器及通信装置 技术领域
本申请涉及通信技术领域，尤其涉及一种谐振器。
背景技术
随着无线通信的高速发展，谐振器作为系统中的关键模块，其小型化、大功率、及高品质因数(Q值)已经成为一种趋势。
现有技术中的腔体谐振器内设谐振杆和介质材料，介质材料安装在盖体和谐振杆之间，通过调谐螺钉穿过盖体与介质材料和谐振杆耦合，实现谐振器的调谐。
针对谐振器各元件的结构，以及各元件之间的装配关系，如何提升谐振器小型化、实现谐振器易安装、易拆卸，以及提升可靠性，为业界持续研究的方向。
发明内容
本申请实施例所要解决的技术问题在于，提供一种谐振器，能够实现小型化，易安装，易拆卸，并能够提升谐振器性能的可靠性。
第一方面，提供了一种谐振器，包括壳体和盖体，所述壳体内设收容腔，所述收容腔内设谐振杆、介质块及弹性元件，所述盖体装配于所述壳体，所述谐振杆呈筒状且包括内侧面、外侧面及连接在所述内侧面和所述外侧面之间的第一端面；所述介质块包括底端和顶端，所述顶端连接至所述盖体，所述底端设有第二端面和突设于所述第二端面上的凸台，所述凸台呈环状；所述第一端面与所述第二端面相对；所述凸台内嵌至所述谐振杆被所述内侧面包围，或者所述凸台套在所述谐振杆的外部且包围所述外侧面；所述弹性元件连接在所述第一端面和所述第二端面之间和\或所述介质块的所述顶端与所述盖体之间，所述弹性元件具导电性。
本申请通过在介质块的底端设置凸台，通过凸台与谐振杆之间外套或内嵌的配合方式，实现介质块与谐振杆之间的组装定位，再通过弹性元件连接在所述第一端面和所述第二端面之间和/或所述介质块的所述顶端与所述盖体之 间，实现谐振杆、介质块及盖体之间的紧密连接。凸台与谐振杆之间外套或内嵌的配合方式使得，本申请谐振器在组装过程中，方便定位，易于安装，而且介质块与谐振杆在径向方向上部分重叠，有利于谐振器小型化的设计。而且本申请能够保证谐振器的可靠性，较传统介质加载技术具有更高的无载Q值和无源互调性能。
一种实施方式中，所述凸台位于所述第二端面的外围，所述凸台包括相对设置的外表面、内表面及连接在所述外表面和所述内表面之间的第三端面，所述介质块包括柱状主体，所述第二端面为所述柱状主体的底面，所述柱状主体的顶面面对所述盖体，所述凸台的外表面与所述柱状主体的侧面共面，所述凸台的内表面面对所述谐振杆的所述外侧面。本实施方式中凸台和谐振杆之间为外套式的结构，而且所述凸台的外表面与所述柱状主体的侧面共面，使得介质块的外表面平滑过度，无明显阶跃，有利于电流均匀传输，提升无载Q值和无源互调性能。
一种实施方式中，所述第二端面接触所述第一端面，所述凸台的内表面接触所述谐振杆的外侧面，所述弹性元件设于所述介质块的所述顶端与所述盖体之间。本实施方式将弹性元件设置在盖体和介质块之间，而介质块和谐振杆之间紧密接触，可以先将弹性元件固定至盖体，利于凸台和谐振杆的配合将介质块定位至谐振杆顶面，再将盖体压在介质块的顶端，这样的组装方式简单方便，节约工时。
一种实施方式中，所述弹性元件包括限位部和弹性部，所述限位部呈环状，所述弹性部自所述限位部向所述限位部中心的方向弯折延伸，所述限位部套设在所述谐振杆的外围，所述限位部位于所述凸台的内表面和所述谐振杆的所述外侧面之间，所述弹性部连接于所述第二端面和所述第一端面之间。本实施方式中，弹性元件设置在介质块和谐振之间，三者之间形成叠套的结构，弹性元件套在谐振杆的顶部，介质块的凸台部分套在弹性元件的外部，方便安装定位。
一种实施方式中，所述弹性部设有至少一个开槽，通过所述开槽的设置，在所述弹性部上形成弹性接触结构，所述弹性接触结构抵接于所述第二端面和所述第一端面之间。
一种实施方式中，所述凸台位于所述第二端面的内缘，所述凸台包括相对设置的外表面、内表面及连接在所述外表面和所述内表面之间的第三端面，所 述介质块包括柱状主体，所述柱状主体内设中心通孔，所述凸台的内表面与所述中心通孔的内壁共面，所述凸台的外表面面对所述谐振杆的所述内侧面。本实施方式中凸台和谐振杆之间为内嵌式的结构，而且所述凸台的内表面与介质块中心通孔的内壁共面，使得介质块的内表面平滑过度，无明显阶跃，有利于电流均匀传输，提升无载Q值和无源互调性能。
一种实施方式中，所述第二端面接触所述第一端面，所述凸台的外表面接触所述谐振杆的内侧面，所述弹性元件设于所述介质块的所述顶端与所述盖体之间。
一种实施方式中，所述弹性元件包括限位部和弹性部，所述限位部呈环状，所述弹性部自所述限位部向远离所述限位部中心的方向弯折延伸，所述限位部内嵌于所述谐振杆的内侧，所述限位部位于所述凸台的外表面和所述谐振杆的所述内侧面之间，所述弹性部连接于所述第二端面和所述第一端面之间。本实施方式中凸台和谐振杆之间为内嵌式的结构，用弹性元件在二者之间形成层叠嵌入的结构，即弹性元件的限位部嵌入谐振杆内侧，凸台嵌入弹性元件限位部内侧，方便安装定位。
一种实施方式中，所述弹性部设有至少一个开槽，通过所述开槽的设置，在所述弹性部上形成弹性接触结构，所述弹性接触结构抵接于所述第二端面和所述第一端面之间。
一种实施方式中，所述盖体为弹性盖体。弹性盖体持续均匀的压力至介质块，使得介质块和谐振之间形成紧密接触。
一种实施方式中，所述介质块所述底端和所述顶端设有导电涂层。
一种实施方式中，所述介质块的材质的介电常数大于1。
一种实施方式中，所述弹性元件的材质为一体式结构。
一种实施方式中，所述谐振杆与所述壳体一体成型，所述壳体包括底壁，所述底壁面对所述盖体，所述谐振杆自所述底壁朝向所述盖体垂直延伸。
一种实施方式中，所述谐振杆与所述壳体为分体式结构。
第二方面，本申请还提供一种通信装置，所述通信装置包括至少一个前述任一项所述的谐振器。通信装置可以为滤波器、双工器、多工器或其它通信器件。
附图说明
下面将对实施例中所需要使用的附图作简单地介绍。
图1是本申请一种实施方式提供的谐振器的立体分解示意图。
图2是图1所示的谐振器的剖面分解示意图。
图3是图1所示的谐振器的剖面组装示意图。
图4是本申请另一种实施方式提供的谐振器的立体分解示意图。
图5是图4所示的谐振器的剖面分解示意图。
图6是图4所示的谐振器的剖面组装示意图。
图7是图1所示的谐振器中的弹性元件的放大示意图。
图8是图4所示的谐振器中的弹性元件的放大示意图。
图9是本申请一种实施方式提供的谐振器与传统的谐振器，在相同体积下，Q值对比。
图10是本申请一种实施方式提供的谐振器与传统的谐振器，在相同体积下，温度补偿对比。
具体实施方式
下面结合附图，对本申请的实施例进行描述。
本申请提供一种谐振器和一种包括所述谐振器的通信装置，本申请中的通信装置可以为滤波器、双工器、多工器或其它通信器件。图1至图3为本申请一种实施方式提供的谐振器的示意图。图4至图6为本申请另一种实施方式提供的谐振器的示意图。这两种实施方式的区别在于内部介质块、弹性元件及谐振杆之间的连接结构。以下先对图1至图3所示的实施例的谐振器做描述。
请参阅图1、图2和图3，谐振器包括壳体10和盖体20，所述壳体10内设收容腔11，所述收容腔11内设谐振杆30、介质块40及弹性元件50，所述盖体20装配于所述壳体10，盖体20将介质块40和弹性元件50安装抵压在谐振杆30上，即介质块40和弹性元件50连接在谐振杆30和盖体20之间。弹性元件50具有导电性能，一种实施方式中，弹性元件50为导电材料制成，可以为金属弹片，另一种实施方式中，弹性元件50的表面覆盖导电材料，将导电层包覆在非导电材料的外表，以实现导电性。一种实施方式中，谐振器还可以包括调谐螺钉(未图示)，调谐螺钉穿过盖体20，伸入介质块40和/或谐 振杆30内，用于对谐振器进行调谐。
具体而言，壳体10为金属腔体结构，壳体10可以整体为金属材料或者包括至少内表面金属化的腔体，壳体10内的收容腔11为谐振腔。壳体10包括底壁和开口端，底壁面对开口端。谐振杆30设置在底壁。所述盖体20覆盖所述开口端，并固定至壳体10。所述盖体20可以为独立的板件(具有单纯的盖板的功能)，其它实施方式中，盖板20也可以为印刷电路板(Printed Circuit Board，PCB)板，也就是说，将盖板和PCB板的功能整合，使得盖板兼具承载电子元件的PCB功能，当PCB板与所述壳体10安装固定并覆盖所述开口端时，所述PCB板作为盖体20使用。
介质块40设于收容腔11内的电容区域。本实施方式中，电容区域指谐振杆30与盖体20之间的区域。电容区域具有较强的电场强度，谐振杆30和盖体20之间为电场最强的区域。介质块40的介电常数εr大于1。由于介质块40的击穿场强往往数倍甚至数十倍的高于空气击穿场强，因此由本申请所提供的谐振器的功率容量因介质块40的设置得到显著的提升。
可选的，所述介质块40的介质材料的品质因子Qf大于1000，以降低介质损耗。其中，通常情况下，Qf为1000是介质材料为塑料还是陶瓷的分界线。所述品质因子为介质材料的介质损耗的倒数。一种实施方式中，所述介质块40的材质为陶瓷、单晶石英或氧化铝。
所述谐振杆30呈筒状且包括内侧面32、外侧面34及连接在所述内侧面32和所述外侧面34之间的第一端面36。第一端面36位于谐振杆30远离底壁且朝向盖体20的一侧。具体而言谐振杆30呈圆筒状，内部设有柱状的通道37。
所述介质块40包括底端和顶端，所述顶端连接至所述盖体20，所述底端设有第二端面46和突设于所述第二端面46上的凸台44，所述凸台44呈环状。具体而言，介质块40整体呈圆柱状，且包括中心通孔47，中心通孔47在径向方向上的截面呈圆形或其他形状，中心通孔47连通在谐振杆30的通道37和盖体20上的供调谐螺钉穿过的通孔之间。谐振杆30的通道37、介质块40的中心通孔47及盖体20上的通孔可以共中心线。所述第一端面36与所述第二端面46相对。其它实施方式中，介质块40也可以不设中心通孔，即介质块40为实心结构，这种情况下，盖体20上也无需设置供调谐螺钉穿过的通孔。
本实施方式中，所述凸台44套在所述谐振杆30的外部，且包围所述外侧面34，而图4至图6所示的实施例中，所述凸台44内嵌至所述谐振杆30，被所述内侧面32包围，这两种实施方式所提供的介质块40和谐振之间的配合结构均在本申请保护范围内。
本实施方式中，所述弹性元件50连接在所述第一端面36和所述第二端面46之间。弹性元件50可以为环状弹性垫片，通过弹性元件50受力变形产生弹力使得介质块40和谐振杆30之间及介质块40和盖体20之间均得到紧密压接的连接关系，从而有效的增加了谐振器的抗干扰能力，提升电气性能。
具体而言，所述凸台44位于所述第二端面46的外围，所述凸台44包括相对设置的外表面、内表面及连接在所述外表面和所述内表面之间的第三端面442，所述介质块40包括柱状主体42，所述第二端面46为所述柱状主体42的底面，所述柱状主体42的顶面面对所述盖体20，所述凸台44的外表面与所述柱状主体42的侧面共面，所述凸台44的内表面面对所述谐振杆30的所述外侧面34。本实施方式中，凸台44和谐振杆30之间为外套式的结构，而且所述凸台44的外表面与所述柱状主体42的侧面共面，使得介质块40的外表面平滑过度，无明显阶跃，有利于电流均匀传输，提升无载Q值和提升无源互调性能。
请结合参阅图7，所述弹性元件50包括限位部52和弹性部54，限位部52呈环状，所述弹性部54自所述限位部52向所述限位部52中心的方向弯折延伸，所述限位部52套设在所述谐振杆30的外围，所述限位部52位于所述凸台44的内表面和所述谐振杆30的所述外侧面34之间，所述弹性部54连接于所述第二端面46和所述第一端面36之间。本实施方式中，弹性元件50设置在介质块40和谐振杆30之间，三者之间形成叠套的结构，具体为径向层叠的结构，弹性元件50套在谐振杆30的顶部，介质块40的凸台44部分套在弹性元件50的外部，方便安装定位。
一种实施方式中，所述弹性部54设有开槽542，开槽542的数量可以为一个、两个或多个。多个开槽542彼此间隔呈圆周分布，相邻的所述开槽542之间形成弹性接触结构，所述弹性接触结构抵接于所述第二端面46和所述第一端面36之间。
其它实施方式中，弹性元件50也可以连接在所述介质块40的所述顶端与 所述盖体20之间，弹性元件50设置在介质块40和盖体20之间的情况下，弹性元件的的结构形式与前述弹性元件50的结构可以不同，可以选择常规的弹性垫片或金属弹片(形状不限，只要能实现介质块40和盖体20之间的弹性接触就可以)设置在介质块40和盖体20之间，弹性元件可以固定在盖板40的一侧，也可以固定在介质块40的一侧，具体的固定方式可以为螺丝固定，通过胶粘贴固定等。介质块40可以和谐振杆30直接接触。所述第二端面46接触所述第一端面36，所述凸台44的内表面接触所述谐振杆30的外侧面34。本实施方式将弹性元件50设置在盖体20和介质块40之间，而介质块40和谐振杆30之间紧密接触，可以先将弹性元件50固定至盖体20，利用凸台44和谐振杆30的配合将介质块40定位至谐振杆30顶面，再将盖体20压在介质块40的顶端，这样的组装方式简单方便，节约工时。
请参阅图4、图5和图6，本实施方式中，所述凸台44内嵌至所述谐振杆30被所述内侧面32包围。所述凸台44位于所述第二端面46的内缘，所述凸台44包括相对设置的外表面、内表面及连接在所述外表面和所述内表面之间的第三端面442，所述介质块40包括柱状主体42，所述柱状主体42内设中心通孔47，所述凸台44的内表面与所述中心通孔47的内壁共面，所述凸台44的外表面面对所述谐振杆30的所述内侧面32。本实施方式中，凸台44和谐振杆30之间为内嵌式的结构，而且所述凸台44的内表面与介质块40中心通孔47的内壁共面，使得介质块40的内表面平滑过度，无明显阶跃，有利于电流均匀传输，提升无载Q值和提升无源互调性能。其它实施方式中，介质块40也可以不设中心通孔，即介质块40为实心结构，这种情况下，凸台44也为实心结构，包括外表面和第三端面，盖体20上也无需设置供调谐螺钉穿过的通孔。
请结合参阅图8，具体而言，本实施方式中，所述弹性元件50包括呈环状的限位部52和弹性部54，所述弹性部54自所述限位部52向远离所述限位部52中心的方向弯折延伸，所述限位部52内嵌于所述谐振杆30的内侧，所述限位部52位于所述凸台44的外表面和所述谐振杆30的所述内侧面32之间，所述弹性部54连接于所述第二端面46和所述第一端面36之间。本实施方式中，用弹性元件50在凸台44和谐振杆30之间形成层叠嵌入的结构，即弹性元件50的限位部52嵌入谐振杆30内侧，凸台44嵌入弹性元件50限位部52 内侧，方便安装定位。
一种实施方式中，所述弹性部54设有开槽542，开槽542的数量可以为一个、两个或多个。多个开槽542彼此间隔呈圆周分布，相邻的所述开槽542之间形成弹性接触结构，所述弹性接触结构抵接于所述第二端面46和所述第一端面36之间，开槽542的设置的目的在于形成弹性接触结构。
其它实施方式中，弹性元件50也可以连接在所述介质块40的所述顶端与所述盖体20之间，而介质块40和谐振杆30直接接触。所述第二端面46接触所述第一端面36，所述凸台44的外表面接触所述谐振杆30的内侧面32。
结合上述不同的实施方式，所述盖体20可以为弹性盖体，盖体20与介质块40结合的位置设有弹性部分，弹性部分用于在垂直于盖体20的方向上形成弹性抵压力。弹性盖体20持续均匀的压力至介质块40，使得介质块40和谐振之间形成紧密接触。
弹性元件50可以设置在介质块40和谐振杆30之间，也可以设置在介质块40和盖体20之间，也可以在介质块40和谐振杆30之间以及介质块40和盖体20之间均设置弹性元件。不管弹性元件50设置在哪里，都可以使用弹性盖体。因为弹性盖体的作用是辅助盖体对介质块40和谐振杆30的压接，使得压力更均衡。而弹性元件50的作用是实现介质块40和谐振杆30之间的紧密连接。两处的弹性元件的连接是独立互相不干涉的。而且，不管弹性元件50设置在哪里，弹性元件50的结构和形状都不限于本申请所描述的结构，还可以为其它的形状和结构，只要能保证在第一端面36和所述第二端面46之间能实现弹性抵接作用。
一种实施方式中，所述介质块40所述底端和所述顶端设有导电涂层。导电涂层的作用是为了实现电磁传递的路径，沿着底端和顶端的表面传递，而不会深入至介质块40的内部，这样可以减少电磁传导的衰减。可选的实施例中，所述导电涂层为金属，例如银或铜。
一种实施方式中，所述弹性元件50为一体式结构。弹性元件50通过冲压、机加等工艺一体成型。可选的，弹性元件50的材质为铍铜，铍铜为具有良好变形能力且能够恢复的材料。
本申请一种实施方式中，所述谐振杆30与所述壳体10一体成型，所述壳体10包括底壁，所述底壁面对所述盖体20，所述谐振杆30自所述底壁朝向 所述盖体20垂直延伸。可选的，谐振杆30底部与底壁结合的位置可以采用一体化倒圆角的设计，避免尖角的存在，可以减少产生非线性区域，提升无源互调性能。谐振杆30与所述壳体10一体式的结构可以为：在壳体10内机加成型、也可压铸成型，壳体10内部谐振杆可以是渐变三角形状，也可以是台阶过渡等形式。
另一种实施方式中，所述谐振杆30与所述壳体10为分体式结构，谐振杆30可以通过螺丝固定连接至壳体10内，或者通过焊接方式连接至壳体10。
本申请通过在介质块40的底端设置凸台44，通过凸台44与谐振杆30之间外套或内嵌的配合方式，实现介质块40与谐振杆30之间的组装定位，这种组装定位方式在装配过程中使得介质块40的位置得到了可靠的确定，也好拆卸。再通过弹性元件50连接在所述第一端面36和所述第二端面46之间或者所述介质块40的所述顶端与所述盖体20之间，实现谐振杆30、介质块40及盖体20之间的紧密连接。凸台44与谐振杆30之间外套或内嵌的配合方式使得，本申请谐振器在组装过程中，方便定位，易于安装，而且介质块40与谐振杆30在径向方向上部分重叠，有利于谐振器小型化的设计。而且本申请能够保证谐振器的可靠性，较传统介质加载技术具有更高的无载Q值和提升无源互调性能。本申请适合大功率容量的谐振器，具有良好的温飘性能和互调性能。
本申请的介质块40和谐振杆30共同形成谐振器腔体内的谐振结构，可以根据工作频率的需求，合理分配介质块40和谐振杆30的高度比例，高度指的是垂直于盖体20方向上的尺寸。通过高度比例的调整，能够减小谐振器的体积实现小型化的需求。
图9是本申请一种实施方式提供的谐振器与传统的谐振器，在相同体积下，Q值对比。可见，本申请相对于传统技术可以在更小的体积内实现更低的频率且能保持相对较高的Q值和功率。由于介质块40和谐振杆30结合的位置设有径向层叠的结构，没有阶梯阻抗引入的Q值牺牲，保留了最大的Q值。
图10是本申请一种实施方式提供的谐振器与传统的谐振器，在相同体积下，温度补偿对比。本申请具有较小的温飘能力。传统的介质加载技术，需要介质块和谐振杆30同时调整膨胀系数才能实现谐振器具有较好的温度漂移范围，难度较大。而本申请因其谐振杆30可以和腔体一体化设计，所以膨胀系 数相同，只需要优化介质的温度系数即可，具有较小的温度漂移特性。
本申请之谐振器中，还可以在其它电场较强的区域添加介质材料，例如在谐振杆30与壳体10内壁之间。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (15)

  1. 一种谐振器，包括壳体和盖体，所述壳体内设收容腔，所述收容腔内设谐振杆、介质块及弹性元件，所述盖体装配于所述壳体，其特征在于，所述谐振杆呈筒状且包括内侧面、外侧面及连接在所述内侧面和所述外侧面之间的第一端面；所述介质块包括底端和顶端，所述顶端连接至所述盖体，所述底端设有第二端面和突设于所述第二端面上的凸台，所述凸台呈环状；所述第一端面与所述第二端面相对；所述凸台内嵌至所述谐振杆被所述内侧面包围，或者所述凸台套在所述谐振杆的外部且包围所述外侧面；所述弹性元件连接在所述第一端面和所述第二端面之间或者所述介质块的所述顶端与所述盖体之间，所述弹性元件具导电性。
  2. 如权利要求1所述的谐振器，其特征在于，所述凸台位于所述第二端面的外围，所述凸台包括相对设置的外表面、内表面及连接在所述外表面和所述内表面之间的第三端面，所述介质块包括柱状主体，所述第二端面为所述柱状主体的底面，所述柱状主体的顶面面对所述盖体，所述凸台的外表面与所述柱状主体的侧面共面，所述凸台的内表面面对所述谐振杆的所述外侧面。
  3. 如权利要求2所述的谐振器，其特征在于，所述第二端面接触所述第一端面，所述凸台的内表面接触所述谐振杆的外侧面，所述弹性元件设于所述介质块的所述顶端与所述盖体之间。
  4. 如权利要求2所述的谐振器，其特征在于，所述弹性元件包括限位部和弹性部，所述限位部呈环状，所述弹性部自所述限位部向所述限位部中心的方向弯折延伸，所述限位部套设在所述谐振杆的外围，所述限位部位于所述凸台的内表面和所述谐振杆的所述外侧面之间，所述弹性部连接于所述第二端面和所述第一端面之间。
  5. 如权利要求4所述的谐振器，其特征在于，所述弹性部设有至少一个开槽，通过所述开槽的设置，在所述弹性部上形成弹性接触结构，所述弹性接触结构抵接于所述第二端面和所述第一端面之间。
  6. 如权利要求1所述的谐振器，其特征在于，所述凸台位于所述第二端面的内缘，所述凸台包括相对设置的外表面、内表面及连接在所述外表面和所述内表面之间的第三端面，所述介质块包括柱状主体，所述柱状主体内设中心 通孔，所述凸台的内表面与所述中心通孔的内壁共面，所述凸台的外表面面对所述谐振杆的所述内侧面。
  7. 如权利要求6所述的谐振器，其特征在于，所述第二端面接触所述第一端面，所述凸台的外表面接触所述谐振杆的内侧面，所述弹性元件设于所述介质块的所述顶端与所述盖体之间。
  8. 如权利要求6所述的谐振器，其特征在于，所述弹性元件包括限位部和弹性部，所述限位部呈环状，所述弹性部自所述限位部向远离所述限位部中心的方向弯折延伸，所述限位部内嵌于所述谐振杆的内侧，所述限位部位于所述凸台的外表面和所述谐振杆的所述内侧面之间，所述弹性部连接于所述第二端面和所述第一端面之间。
  9. 如权利要求8所述的谐振器，其特征在于，所述弹性部设有至少一个开槽，通过所述开槽的设置，在所述弹性部上形成弹性接触结构，所述弹性接触结构抵接于所述第二端面和所述第一端面之间。
  10. 如利要求1-9任意一项所述的谐振器，其特征在于，所述介质块所述底端和所述顶端设有导电涂层。
  11. 如权利要求1-10任意一项所述的谐振器，其特征在于，所述介质块的材质的介电常数大于1。
  12. 如权利要求1-11任意一项所述的谐振器，其特征在于，所述弹性元件为一体式结构。
  13. 如权利要求1-12任意一项所述的谐振器，其特征在于，所述谐振杆与所述壳体一体成型，所述壳体包括底壁，所述底壁面对所述盖体，所述谐振杆自所述底壁朝向所述盖体垂直延伸。
  14. 如权利要求1-12任意一项所述的谐振器，其特征在于，所述谐振杆与所述壳体为分体式结构。
  15. 一种通信装置，其特征在于，所述通信装置包括至少一个如权利要求1-14任意一项所述的谐振器。
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