WO2017000255A1 - 一种谐振器及滤波器 - Google Patents

一种谐振器及滤波器 Download PDF

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Publication number
WO2017000255A1
WO2017000255A1 PCT/CN2015/082928 CN2015082928W WO2017000255A1 WO 2017000255 A1 WO2017000255 A1 WO 2017000255A1 CN 2015082928 W CN2015082928 W CN 2015082928W WO 2017000255 A1 WO2017000255 A1 WO 2017000255A1
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WO
WIPO (PCT)
Prior art keywords
insulating
tuning screw
metal
screw
cavity
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PCT/CN2015/082928
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English (en)
French (fr)
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WO2017000255A9 (zh
Inventor
崔铮
张毅
包翔宇
朱银虎
朱运涛
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华为技术有限公司
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.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580081330.0A priority Critical patent/CN107851871B/zh
Priority to PCT/CN2015/082928 priority patent/WO2017000255A1/zh
Publication of WO2017000255A1 publication Critical patent/WO2017000255A1/zh
Publication of WO2017000255A9 publication Critical patent/WO2017000255A9/zh

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    • 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

Definitions

  • the invention relates to the technical field of the electrical industry, and in particular to a resonator and a filter.
  • the frequency tuning of the filter is to change the frequency by tuning the distance between the screw and the resonant rod.
  • the grounding form of the tuning screw is achieved by direct contact locking with the cover. This tuning method directly exposes the metal contact portion of the locked screw connection to a strong electric field, forming an intermodulation sensitive source, affecting the intermodulation straight-through rate.
  • FIG. 1 is a single cavity structure of a filter.
  • the cavity 2 has a mounting boss.
  • the boss is provided with a threaded hole, and the resonant rod 3 is mounted on the boss through the screw 6 .
  • the resonant rod 3 and the cavity 2 are fixed.
  • the tuning screw 5 is fixed to the cover 4 by a nut 1 and a spacer 7.
  • the tuning screw 5 can be moved up and down by the rotation in the threaded hole to adjust the frequency; in the form of threaded locking, the locking screw 5 is directly exposed to the strong electric field due to the locking screw.
  • the current density of the contact surface with the cover plate 4 is relatively large, and the long-term reliability of the metal contact type screw connection is weak, resulting in sensitivity of mutual adjustment and low straight-through rate.
  • the main sensitive point of filter intermodulation failure is One.
  • the invention provides a resonator for reducing the intermodulation problem caused by poor contact between the metal tuning screw thread and the metal cover thread.
  • a resonator comprising a housing having a cavity, a metal cap disposed on the housing and for blocking the cavity; wherein the cavity is provided with a resonance Rod,
  • the metal cap is provided with a tuning screw that cooperates with the resonant rod to form a coupling capacitor, and the tuning screw is in insulative contact with the metal cap.
  • the metal cap is provided with an insulating mounting base, and the tuning screw is disposed through the insulating mounting base.
  • the insulating mounting base is provided with an internal thread, and the tuning screw is spirally connected to the insulating mounting base.
  • the tuning screw includes a metal rod body, and an insulating member disposed at one end of the metal rod body, the metal top cover being disposed on the insulating member a mating insulating sleeve through which the metal rod extends into the cavity.
  • the insulating member includes an insulating rod body connected to the metal rod body, and an insulating rod cap connected to the insulating rod body Wherein the insulating rod cap is exposed to the insulating sleeve.
  • the insulating rod body is spirally connected to the insulating sleeve.
  • the tuning screw is a self-locking screw
  • the metal top cover is provided with an insulating sleeve
  • the self-locking screw is connected to the insulating sleeve.
  • an end of the self-locking screw away from the cavity is provided with an insulating layer.
  • the self-locking screw is screwed to the insulating sleeve.
  • the resonance The rod is integral with the housing.
  • a resonator provided by the first aspect, in the above technical solution, by using a metal top
  • the insulating connection between the cover and the tuning screw is such that a contactless capacitor is formed between the metal cap and the tuning screw, and the tuning screw and the metal cap are respectively used as two plates of the capacitor, and the two are separated by an insulating medium.
  • Capacitive non-metal contact RF grounding that provides RF signals through capacitive coupling principle, thereby avoiding the possibility of metal connection between the metal cap and the tuning screw during tuning screw adjustment, thereby effectively reducing the resonator's Intermodulation sensitive features.
  • Figure 1 is a cross-sectional view of a prior art resonator
  • FIG. 2 is a cross-sectional view of a resonator according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of a resonator according to another embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing a resonator according to another embodiment of the present invention.
  • FIG. 5 is a diagram showing the effect of the tuning screw of the resonator in the prior art as a function of the depth of the cavity entering the cavity;
  • FIG. 6 is a diagram showing the effect of the tuning screw of the resonator according to the depth frequency of entering the cavity according to the embodiment of the present invention.
  • the frequency tuning of the resonator is by tuning the distance between the screw and the resonant rod. Change to change the frequency.
  • the grounding form of the tuning screw is achieved by direct contact locking with the cover. Since the tuning screw is usually silver plated with silver, the cover is usually silver plated with aluminum. At the moment of locking, local breakage of the silver layer occurs, resulting in aluminum-silver-copper contact. Metal contact of different materials is one of the sensitive points of intermodulation deterioration, and the metal contact surface of the tuning screw and the cover plate is a place with very high current density, and the importance of such intermodulation sensitive points is more prominent.
  • the solution of the invention is to solve the intermodulation sensitive characteristic here, and provide the capacitive non-metal contact type RF grounding of the radio frequency signal ground through the non-contact capacitive coupling principle, so as to reduce the sensitivity of intermodulation sensitivity.
  • an embodiment of the present invention provides a resonator including a housing having a cavity, a metal cap disposed on the housing and used to block the cavity; wherein the cavity is provided with a resonant rod
  • the metal top cover is provided with a tuning screw that cooperates with the resonant rod to form a coupling capacitor, and the tuning screw is insulative contact with the metal top cover.
  • a contactless capacitor is formed between the metal cap and the tuning screw, and the tuning screw and the metal cap are respectively used as the two plates of the capacitor, and A capacitive non-metal contact RF grounding that is isolated by an insulating medium and provides a radio frequency signal through a capacitive coupling principle, thereby avoiding the possibility of metal connection between the metal cap and the tuning screw during tuning screw adjustment.
  • Sexuality which in turn effectively reduces the intermodulation sensitivity of the resonator.
  • the structure in which the tuning screw used in the above technical solution is disposed on the metal top cover and is insulatively connected to the metal top cover can be realized in different manners.
  • the following between the tuning screw and the metal top cover provided by the embodiment is combined with the specific drawings. The connection method is described in detail.
  • FIG. 2 illustrates one manner of connection between the tuning screw 40 and the metal cap 20 provided by the present embodiment.
  • the metal top cover 20 and the tuning screw 40 are connected, as shown in FIG. 2, the metal top cover 20 is provided with an insulating mounting base 50, and the insulating mounting base 50 is provided with a accommodating tuning. a through hole through which the screw 40 passes, the through hole is provided with an internal thread, and the tuning screw 40 is screwed into the threaded hole during installation, thereby realizing the connection between the tuning screw 40 and the insulating mounting base 50. Pick up.
  • the insulating mounting base 50 may be a common insulating member such as a plastic member or a rubber member.
  • the metal top cover 20 is provided with a groove, and the insulating mounting base 50 is provided.
  • the card is mounted in the recess, wherein the shape of the recess is preferably a polygon, and the insulating mounting base 50 is correspondingly formed into a polygon matching the recess, thereby facilitating positioning and clamping between the two.
  • a sleeve 21 matching the tuning screw 40 may be disposed on the metal cap 20, and when the tuning screw 40 is screwed into the insulating mounting base 50, the tuning screw 40 is exposed through the sleeve 21, and the tuning screw is There is a gap between 40 and the inner wall of the sleeve 21.
  • the sleeve 21 of the metal cap 20 and the tuning screw 40 serve as two plates of the capacitor, respectively.
  • the structure in which the tuning screw 40 is fixed on the metal top cover 20 and insulated from the metal top cover 20 is formed by using an insulating mount, thereby forming a structure between the tuning screw 40 and the metal top cover 20.
  • the coupling capacitor is grounded and avoids the possibility of electrical connection between the metal cap 20 and the tuning screw 40 when the tuning screw 40 is adjusted, thereby effectively reducing the intermodulation sensitivity of the resonator.
  • FIG. 3 shows another structure of the cooperation between the tuning screw 40 and the metal top cover 20 provided by the embodiment of the present invention.
  • the tuning screw 40 is an assembly composed of two parts.
  • the tuning screw 40 includes a metal rod 42 and an insulating member 41 disposed at one end of the metal rod 42.
  • the metal top cover 20 is provided with
  • the insulating sleeve 60 is matched with the insulating member 41, and the metal rod 42 is inserted through the insulating sleeve 60 into the cavity.
  • the direction shown in FIG. 3 is the direction in which the device is placed, and the metal top cover 20 is provided with a through hole directly above the hollow cavity of the resonant rod 30, and the through hole is internally provided for assembly tuning.
  • the insulating sleeve 60 of the screw 40 when the tuning screw 40 is transferred into the inner hole of the insulating sleeve 60, the metal rod 42 partially passes through the insulating sleeve 60 and then projects into the cavity, and the insulating member 41 of the tuning screw 40 Spirally connected to the insulating sleeve 60.
  • insulation 41 includes an insulating rod body connected to the metal rod body 42 and an insulating rod cap connected to the insulating rod body, wherein the insulating rod cap is exposed to the insulating sleeve 60, and the insulating rod body is spirally connected with the insulating sleeve 60, and the structure is avoided.
  • the entire insulating member 41 is screwed in too much, and the occurrence of the insulating member falls into the chamber.
  • the insulating rod body and the metal rod body may also be spirally connected.
  • the insulating member 41 is a plastic bolt structure (the screw rod of the bolt corresponds to the insulating rod body, the nut of the bolt corresponds to the insulating rod cap), and the rod body has an internally threaded hole, and the corresponding metal rod body
  • the 42 has a protrusion with an external thread, and the insulating member 41 and the metal rod 42 are integrally connected by a screw.
  • the rod portion of the insulating member 41 is spirally connected to the insulating sleeve 60, the nut of the insulating member 41 is exposed outside the insulating sleeve 60, and the size of the nut is larger than the size of the inner hole of the insulating sleeve 60.
  • the entire insulating member 41 is prevented from being screwed into the insulating sleeve 60, and the screwing amount is excessively large, and the tuning screw 40 is entirely dropped into the chamber.
  • the structure is convenient for the operator when tuning. Rotating the tuning screw 40 with more tools, unlike the built-in nut, can only be rotated by a tool that is smaller than the width of the nut.
  • the structure in which the tuning screw 40 is fixed on the metal top cover 20 and insulated from the metal top cover 20 is formed, thereby realizing the tuning screw.
  • 40 and the metal cap 20 form a coupling capacitor grounding structure, and avoid the possibility of electrical connection between the metal cap 20 and the tuning screw 40 when the tuning screw 40 is adjusted, thereby effectively reducing the intermodulation of the resonator. Sensitive features.
  • FIG. 4 shows a mating structure between another tuning screw and a metal top cover 20 provided by an embodiment of the present invention.
  • the fit between the tuning screw and the metal cap 20 provided by this embodiment is similar to the manner of the cooperation between the tuning screw and the metal cap 20 provided in Embodiment 3.
  • the tuning screw 40 is a self-locking screw 43
  • the metal top cover 20 is provided with an insulating sleeve 70
  • the self-locking screw 43 is screwed to the insulating sleeve 70.
  • an end of the self-locking screw 43 away from the cavity may be provided with an insulating layer 44 to increase the insulation effect between the metal cap 20 and the tuning screw.
  • the tuning screw adopts a one-piece structure, that is, the tuning screw adopts With the self-locking screw 43, the insulating sleeve 70 is snapped onto the metal top cover 20, and the insulating sleeve 70 is provided with an internally threaded hole for the rod of the self-locking screw 43 to pass therethrough.
  • the self-locking screw 43 is inserted into the internally threaded hole, and the self-locking screw 43 is fixed on the insulating sleeve 70 by the cooperation of the external thread on the self-locking screw 43 and the internal thread, thereby realizing the tuning.
  • An insulated connection between the screw and the metal cap 20 is a one-piece structure, that is, the tuning screw adopts With the self-locking screw 43, the insulating sleeve 70 is snapped onto the metal top cover 20, and the insulating sleeve 70 is provided with an internally threaded hole for the rod of the self-locking screw 43 to pass therethrough.
  • the insulating layer 44 is disposed at one end of the self-locking screw 43 away from the cavity. That is, the exposed end of the self-locking screw 43 is provided with an insulating layer 44.
  • the insulating layer 44 may be a rubber pad or insulated on the exposed end of the self-locking screw 43 to form an insulating layer 44.
  • the tuning between the insulating sleeve 70 and the self-locking screw 43 is used to form a structure in which the tuning screw 40 is fixed on the metal top cover 20 and insulated from the metal top cover 20, thereby achieving tuning.
  • a structure in which the coupling capacitor is grounded is formed between the screw 40 and the metal cap 20, and the possibility of electrical connection between the metal cap 20 and the tuning screw 40 occurs when the tuning screw 40 is adjusted, thereby effectively reducing the mutual mutual resonance of the resonator. Adjust sensitive characteristics.
  • the embodiment 2 and the third embodiment that the cooperation between the tuning screw 40 and the metal top cover 20 provided by the embodiment can be implemented in different manners, but it should be understood that The manner of cooperation between the tuning screw 40 and the metal cap 20 provided by the embodiment is not limited to the three structures listed in the above specific embodiments, and any structure capable of realizing the cooperation between the tuning screw 40 and the metal cap 20 to form a coupling capacitor grounding Both can be applied in this embodiment.
  • the structure of the housing 10 and the resonant rod 30 provided by the present embodiment is provided. Different structures can be used. Illustratively, the housing 10 has a chamber in which the resonant rod 30 is disposed, or the housing 10 has a chamber in which the resonant rod 30 is disposed and integral with the housing 10. And regardless of any configuration, the resonant rod 30 has an inner bore for receiving the shaft of the tuning screw 40.
  • FIG. 5 is an effect diagram of the tuning screw 40 of the resonator in the prior art as a function of the depth of the cavity entering the cavity
  • FIG. 6 is a tuning screw of the resonator according to the embodiment of the present invention. 40 effect diagram as the depth of the cavity enters the cavity.
  • the horizontal and vertical coordinates of FIGS. 5 and 6 have the same meaning, the abscissa indicates the frequency characteristic, and the ordinate indicates the delay value of the single cavity, (to visually indicate that the depth of the tuning screw 40 enters the cavity increases) Corresponding frequency change).
  • the parabola is represented from right to left by the change of the port delay corresponding to the depth of the tuning screw 40 entering the cavity from 0 mm to 5 mm, and the horizontal coordinate indicates the frequency corresponding to the depth of the tuning screw 40 entering the cavity from 0 mm to 5 mm.
  • Embodiments of the present invention also provide a filter including the foregoing resonator.
  • Embodiments of the present invention also provide a communication device including the foregoing resonator or filter.

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Abstract

一种谐振器，该谐振器包括具有腔体（2）的壳体（10），设置在壳体（10）并用于封堵腔体（2）的金属顶盖（20）；其中，腔体（2）内设置有谐振杆（30），金属顶盖（20）上穿设有与谐振杆（30）相配合形成耦合电容的调谐螺杆（40），且调谐螺杆（40）与金属顶盖（20）之间绝缘接触。在上述技术方案中，通过采用金属顶盖（20）与调谐螺杆（40）之间绝缘连接，使得金属顶盖（20）与调谐螺杆（40）之间形成不接触的电容，调谐螺杆（40）及金属顶盖（20）分别作为电容的两个极板，且两者之间通过绝缘的介质隔离开来，并通过电容耦合原理提供射频信号的电容型非金属接触式射频接地，从而避免在调谐螺杆（40）调整时出现金属顶盖（20）与调谐螺杆（40）之间金属连接的可能性，进而有效地降低了谐振器的互调敏感的特性。

Description

一种谐振器及滤波器 技术领域
本发明涉及到电气行业的技术领域，尤其涉及到一种谐振器及滤波器。
背景技术
滤波器的频率调谐是通过调谐螺杆对谐振杆之间的距离变化来改变频率的。调谐螺杆的接地形式都是通过和盖板直接接触式锁紧来实现的。这种调谐方式由于锁紧的螺纹连接的金属接触部分直接暴露在强电场中，形成互调敏感源，影响互调直通率。
随着滤波器小型化大功率趋势加剧，如何改进调谐方式，提升产品互调直通率便成为了滤波器领域首要解决的技术难题。
现有技术如下图1所示，是一个滤波器单个腔体结构，腔体2上有一个安装凸台，该凸台上设计一个螺纹孔，谐振杆3安装在该凸台上，通过螺钉6把谐振杆3和腔体2固定。调谐螺杆5通过螺母1和垫片7固定在盖板4上。调谐螺杆5可以通过在螺纹孔内的旋转来实现上下移动，起到调节频率的作用；这种用螺纹锁紧的调螺形式，由于锁紧的螺牙直接暴露在强电场中，调谐螺杆5和盖板4接触面的电流密度较大，同时这种金属接触式的螺纹连接的长期可靠性较弱，导致互调敏感，直通率低，此处是滤波器互调失效的主要敏感点之一。
发明内容
本发明提供了一种谐振器，用以降低因金属调谐螺杆螺纹与金属盖板螺纹接触不良导致的互调问题。
第一方面，提供了一种谐振器，该谐振器包括具有腔体的壳体，设置在所述壳体并用于封堵所述腔体的金属顶盖；其中，所述腔体内设置有谐振杆， 所述金属顶盖上穿设有与所述谐振杆相配合形成耦合电容的调谐螺杆，且所述调谐螺杆与所述金属顶盖之间绝缘接触。
结合上述第一方面、在第一种可能的实现方式中，所述金属顶盖上设置有绝缘安装底座，所述调谐螺杆穿设在所述绝缘安装底座。
结合上述第一方面的第一种可能的实现方式，在第二种可能的实现方式中，所述绝缘安装底座设置有内螺纹，所述调谐螺杆与所述绝缘安装底座螺旋连接。
结合上述第一方面、在第三种可能的实现方式中，所述调谐螺杆包括金属杆体，以及设置在所述金属杆体一端的绝缘件，所述金属顶盖上设置有与所述绝缘件相配合的绝缘套筒，所述金属杆体穿设过所述绝缘套筒内伸入所述腔体内。
结合上述第一方面的第三种可能的实现方式，在第四种可能的实现方式中，所述绝缘件包括与所述金属杆体连接的绝缘杆体，以及与所述绝缘杆体连接的绝缘杆帽，其中，所述绝缘杆帽露出于所述绝缘套筒。
结合上述第一方面的第四种可能的实现方式，在第五种可能的实现方式中，所述绝缘杆体与所述绝缘套筒螺旋连接。
结合上述第一方面、在第六种可能的实现方式中，所述调谐螺杆为自锁螺钉，所述金属顶盖上设置有绝缘套筒，所述自锁螺钉与所述绝缘套筒连接，且所述自锁螺钉远离所述腔体的一端设置有绝缘层。
结合上述第一方面的第六种可能的实现方式，在第七种可能的实现方式中，所述自锁螺钉与所述绝缘套筒螺旋连接。
结合上述第一方面、第一方面的第一种可能的实现方式、第一方面的第二种可能的实现方式、第一方面的第三种可能的实现方式、第一方面的第四种可能的实现方式、第一方面的第五种可能的实现方式、第一方面的第六种可能的实现方式、或第七种可能的实现方式，在第八种可能的实现方式中，所述谐振杆与所述壳体为一体结构。
根据第一方面提供的一种谐振器，在上述技术方案中，通过采用金属顶 盖与调谐螺杆之间绝缘连接，使得金属顶盖与调谐螺杆之间形成不接触的电容，调谐螺杆及金属顶盖分别作为电容的两个极板，且两者之间通过绝缘的介质隔离开来，并通过电容耦合原理提供射频信号的电容型非金属接触式射频接地，从而避免在调谐螺杆调整时出现金属顶盖与调谐螺杆之间金属连接的可能性，进而有效地降低了谐振器的互调敏感的特性。
附图说明
图1为现有技术中的谐振器的剖视图；
图2为本发明实施例提供的谐振器的剖视图；
图3为本发明另一实施例提供的谐振器的剖视图；
图4为本发明另一实施例提供谐振器的剖视图；
图5为现有技术中的谐振器的调谐螺杆随着进入腔体的深度频率变化的效果图；
图6为本发明实施例提供的谐振器的调谐螺杆随着进入腔体的深度频率变化的效果图。
附图标记：
1-螺母 2-腔室 3-谐振杆
4-盖板 5-调谐螺杆 6-螺钉
7-垫片 10-壳体 20-金属顶盖
21-套筒 30-谐振杆 40-调谐螺杆 41-绝缘件
42-金属杆体 43-自锁螺钉 44-绝缘层
50-绝缘安装底座 60-绝缘套筒 70-绝缘套筒
具体实施方式
以下结合附图对本发明的具体实施例进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
在现有技术中，谐振器的频率调谐是通过调谐螺杆对谐振杆之间的距离 变化来改变频率的。调谐螺杆的接地形式都是通过和盖板直接接触式锁紧来实现的。由于调谐螺杆通常是铜材质电镀银，盖板通常是铝材质电镀银。在锁紧的瞬间，会产生银层的局部断裂，导致铝-银-铜的接触。不同材质的金属接触是互调恶化的敏感点之一，且调谐螺杆和盖板的金属接触面是电流密度非常强的地方，这种互调敏感点的重要性就更加突出。本发明的方案就是解决此处的互调敏感特性，通过不接触的电容耦合原理提供射频信号地的电容型非金属接触式射频接地，以达到降低互调敏感的特性。
为了实现上述目的，本发明实施例提供了一种谐振器，该谐振器包括具有腔体的壳体，设置在壳体并用于封堵腔体的金属顶盖；其中，腔体内设置有谐振杆，金属顶盖上穿设有与谐振杆相配合形成耦合电容的调谐螺杆，且调谐螺杆与金属顶盖之间绝缘接触。
在上述技术方案中，通过采用金属顶盖与调谐螺杆之间绝缘连接，使得金属顶盖与调谐螺杆之间形成不接触的电容，调谐螺杆及金属顶盖分别作为电容的两个极板，且两者之间通过绝缘的介质隔离开来，并通过电容耦合原理提供射频信号的电容型非金属接触式射频接地，从而避免在调谐螺杆调整时出现金属顶盖与调谐螺杆之间金属连接的可能性，进而有效地降低了谐振器的互调敏感的特性。
在上述技术方案中采用的调谐螺杆设置在金属顶盖上且与金属顶盖绝缘连接的结构可以通过不同的方式实现，下面结合具体的附图对本实施例提供的调谐螺杆及金属顶盖之间的连接方式进行详细的说明。
实施例1
如图2所示，图2示出了本实施例提供的调谐螺杆40与金属顶盖20之间连接的一种方式。
在本实施例中，金属顶盖20与调谐螺杆40之间在连接时，如图2所示，金属顶盖20上设置了一个绝缘安装底座50，该绝缘安装底座50上设置有用于容纳调谐螺杆40穿过的通孔，该通孔设置有内螺纹，调谐螺杆40在安装时，螺旋入该螺纹孔内，从而实现调谐螺杆40与绝缘安装底座50之间的连 接。
其中，在具体安装时，绝缘安装底座50可以采用塑料件、橡胶件等常见的绝缘件，在其与金属顶盖20的配合上，金属顶盖20上设置有一个凹槽，绝缘安装底座50卡装在该凹槽内，其中，该凹槽的形状较佳选为多边形，而绝缘安装底座50也对应的做成与凹槽相配合的多边形，从而方便两者之间的定位卡装。此外，金属顶盖20上还可以设置与调谐螺杆40相配合的套筒21，在调谐螺杆40旋入到绝缘安装底座50内时，调谐螺杆40穿过该套筒21后露出，且调谐螺杆40与套筒21的内壁之间存在间隙。在形成耦合电容时，金属顶盖20的套筒21及调谐螺杆40分别作为电容的两个极板。
通过上述描述可以看出，本实施例中通过采用绝缘安装座形成调谐螺杆40固定在金属顶盖20上并与金属顶盖20绝缘的结构，从而实现调谐螺杆40与金属顶盖20之间形成耦合电容接地的结构，并避免在调谐螺杆40调整时出现金属顶盖20与调谐螺杆40之间电连接的可能性，进而有效地降低了谐振器的互调敏感的特性。
实施例2，
如图3所示，图3示出了本发明实施例提供的另一种调谐螺杆40与金属顶盖20之间配合的结构。
在本实施例中，调谐螺杆40为一个组合件，其由两部分组成，示例的，调谐螺杆40包括金属杆体42，以及设置在金属杆体42一端的绝缘件41，金属顶盖20上设置有与所述绝缘件41相配合的绝缘套筒60，金属杆体42穿设过绝缘套筒60内伸入腔体内。
在具体设置时，以图3所示的方向为器件的放置方向，金属顶盖20上设置有一个位于谐振杆30的中空腔体正上方的通孔，该通孔内卡装有用于装配调谐螺杆40的绝缘套筒60，调谐螺杆40在转入到该绝缘套筒60的内孔时，金属杆体42部分穿过绝缘套筒60后伸入到腔体内，而调谐螺杆40的绝缘件41与绝缘套筒60之间螺旋连接，示例的，绝缘套筒60的内孔侧壁具有内螺纹，绝缘件41的侧壁上设置有与该内螺纹相配合的外螺纹。示例的，绝缘件 41包括与金属杆体42连接的绝缘杆体，以及与绝缘杆体连接的绝缘杆帽，其中，绝缘杆帽露出于绝缘套筒60，且绝缘杆体与绝缘套筒60螺旋连接，采用此种结构避免了在调整时整个绝缘件41旋入量过大，出现的绝缘件掉入到腔室内的情况。可选的，绝缘杆体与金属杆体也可以为螺旋连接。
较佳的，该绝缘件41为一个塑料螺栓结构(螺栓的螺旋杆对应上述绝缘杆体，螺栓的螺帽对应上述绝缘杆帽)，且该螺栓的杆体上具有一个内螺纹孔，对应的金属杆体42上具有一个带有外螺纹的凸起，绝缘件41与金属杆体42之间通过螺旋固定连接成一体。在具体设置时，绝缘件41的杆体部分与绝缘套筒60螺旋连接，绝缘件41的螺帽露出于绝缘套筒60的外部，且螺帽的尺寸大于绝缘套筒60的内孔的尺寸，从而避免绝缘件41整个旋入到绝缘套筒60内，避免出现旋入量过大，调谐螺杆40整个掉入到腔室内的情况，同时，采用此种结构，还方便了调谐时，操作者采用较多的工具旋转调谐螺杆40，不像螺帽内置时，只能通过小于螺帽宽度的工具进行旋转。
通过上述描述可以看出，本实施例中通过采用绝缘套筒60与绝缘件41之间的配合形成调谐螺杆40固定在金属顶盖20上并与金属顶盖20绝缘的结构，从而实现调谐螺杆40与金属顶盖20之间形成耦合电容接地的结构，并避免在调谐螺杆40调整时出现金属顶盖20与调谐螺杆40之间电连接的可能性，进而有效地降低了谐振器的互调敏感的特性。
实施例3
如图4所示，图4示出了本发明实施例提供的另外一种调谐螺杆与金属顶盖20之间的配合结构。
本实施例提供的调谐螺杆与金属顶盖20之间的配合与实施例3提供的调谐螺杆与金属顶盖20之间的配合的方式相近似。唯一的区别在于，在本实施例中，调谐螺杆40为自锁螺钉43，金属顶盖20上设置有绝缘套筒70，自锁螺钉43与绝缘套筒70螺旋连接。可选的，自锁螺钉43远离腔体的一端可以设置有绝缘层44，从而增大金属顶盖20与调谐螺杆之间的绝缘效果。
可选的，在本实施例中，调谐螺杆采用一个一体件结构，即调谐螺杆采 用自锁螺钉43，绝缘套筒70卡装在金属顶盖20上，且绝缘套筒70设置有用于自锁螺钉43杆穿过的内螺纹孔。在固定时，将自锁螺钉43穿入到该内螺纹孔内，并通过自锁螺钉43上的外螺纹与内螺纹的配合实现将自锁螺钉43固定在绝缘套筒70上，从而实现调谐螺杆与金属顶盖20之间的绝缘连接。
在本实施例中，较佳的，自锁螺钉43远离腔体的一端设置有绝缘层44。即自锁螺钉43外露的一端设置了一层绝缘层44，该绝缘层44可以为一个胶垫或者在自锁螺钉43外露的一端上进行绝缘处理，从而形成一个绝缘层44。
通过上述描述可以看出，本实施例中通过采用绝缘套筒70与自锁螺钉43之间的配合形成调谐螺杆40固定在金属顶盖20上并与金属顶盖20绝缘的结构，从而实现调谐螺杆40与金属顶盖20之间形成耦合电容接地的结构，并避免在调谐螺杆40调整时出现金属顶盖20与调谐螺杆40之间电连接的可能性，进而有效地降低了谐振器的互调敏感的特性。
通过上述具体的实施例1、实施例2及实施例3可以看出，本实施例提供的调谐螺杆40与金属顶盖20之间的配合可以采用不同的方式实现，但应当理解的是，本实施例提供的调谐螺杆40及金属顶盖20之间的配合方式不仅限于上述具体实施例列举的三种结构，任何能够实现调谐螺杆40与金属顶盖20之间的配合形成耦合电容接地的结构均可应用在本实施例中。
此外，针对本实施例提供的壳体10及谐振杆30的结构。可以采用不同的结构。示例的，壳体10具有腔室，谐振杆30设置在该腔体内，或者，壳体10具有腔室，谐振杆30设置在该腔室内并与壳体10为一体结构。且无论采用任何的结构，谐振杆30均具有用于容纳调谐螺杆40的杆体的内孔。
为了直观的体现本实施例提供的谐振器与现有技术中的谐振器之间的区别。参考图5及图6，其中，图5为现有技术中的谐振器的调谐螺杆40随着进入腔体的深度频率变化的效果图；图6为本发明实施例提供的谐振器的调谐螺杆40随着进入腔体的深度频率变化的效果图。其中，图5及图6的横纵坐标表示的含义相同，横坐标表示频率特性，纵坐标表示单腔的时延值，(用以直观表示随着调谐螺杆40进入腔体的深度的增加而对应的频率变化)。图 形为抛物线。抛物线由右至左表示的是调谐螺杆40进入腔体的深度由0mm到5mm对应的端口时延的变化，体现在横坐标上就是表示调谐螺杆40进入腔体的深度由0mm到5mm对应的频率的变化。可以看出，调谐频率三者一致。
本发明实施例还提供一种滤波器，包含前述谐振器。
本发明实施例还提供一种通信设备，包括前述谐振器或滤波器。
具体描述均可参考前述实施例的描述，在此不予赘述。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (10)

  1. 一种谐振器，其特征在于，包括具有腔体的壳体，设置在所述壳体并用于封堵所述腔体的金属顶盖；其中，所述腔体内设置有谐振杆，所述金属顶盖上穿设有与所述谐振杆相配合形成耦合电容的调谐螺杆，且所述调谐螺杆与所述金属顶盖之间绝缘接触。
  2. 如权利要求1所述的谐振器，其特征在于，所述金属顶盖上设置有绝缘安装底座，所述调谐螺杆穿设在所述绝缘安装底座。
  3. 如权利要求2所述的谐振器，其特征在于，所述绝缘安装底座设置有内螺纹，所述调谐螺杆与所述绝缘安装底座螺旋连接。
  4. 如权利要求1所述的谐振器，其特征在于，所述调谐螺杆包括金属杆体，以及设置在所述金属杆体一端的绝缘件，所述金属顶盖上设置有与所述绝缘件相配合的绝缘套筒，所述金属杆体穿设过所述绝缘套筒内伸入所述腔体内。
  5. 如权利要求4所述的谐振器，其特征在于，所述绝缘件包括与所述金属杆体连接的绝缘杆体，以及与所述绝缘杆体连接的绝缘杆帽，其中，所述绝缘杆帽露出于所述绝缘套筒。
  6. 如权利要求5所述的谐振器，其特征在于，所述绝缘杆体与所述绝缘套筒螺旋连接。
  7. 如权利要求1所述的谐振器，其特征在于，所述调谐螺杆为自锁螺钉，所述金属顶盖上设置有绝缘套筒，所述自锁螺钉与所述绝缘套筒连接，且所述自锁螺钉远离所述腔体的一端设置有绝缘层。
  8. 如权利要求7所述的谐振器，其特征在于，所述自锁螺钉与所述绝缘套筒螺旋连接。
  9. 如权利要求1至8中任一项所述的谐振器，其特征在于，所述谐振杆与所述壳体为一体结构。
  10. 一种滤波器，其特征在于，包括如权利要求1至9中任一项所述的谐振器。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109989990A (zh) * 2019-05-16 2019-07-09 深圳市国人射频通信有限公司 一种自锁组件及应用该种自锁组件的调谐装置
CN112670683A (zh) * 2019-10-15 2021-04-16 深圳市大富科技股份有限公司 腔体滤波器及其盖板以及通信设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109818121B (zh) * 2018-12-14 2023-09-29 京信通信技术(广州)有限公司 腔体滤波器件及其腔体盖板组件

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6362708B1 (en) * 1998-05-21 2002-03-26 Lucix Corporation Dielectric resonator tuning device
CN101385189A (zh) * 2006-02-24 2009-03-11 艾利森电话股份有限公司 空腔滤波器、隔离装置和移动通信网络中的节点
CN101964436A (zh) * 2009-07-23 2011-02-02 深圳市大富科技股份有限公司 腔体滤波器
CN102255124A (zh) * 2011-04-22 2011-11-23 深圳市大富科技股份有限公司 腔体滤波器、通信设备、通信设备盖板组件及调谐结构
CN103700912A (zh) * 2013-12-31 2014-04-02 深圳市大富科技股份有限公司 腔体滤波器及其盖板
US20140132372A1 (en) * 2012-11-13 2014-05-15 Communication Components Inc. Intermodulation distortion reduction system using insulated tuning elements

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6362708B1 (en) * 1998-05-21 2002-03-26 Lucix Corporation Dielectric resonator tuning device
CN101385189A (zh) * 2006-02-24 2009-03-11 艾利森电话股份有限公司 空腔滤波器、隔离装置和移动通信网络中的节点
CN101964436A (zh) * 2009-07-23 2011-02-02 深圳市大富科技股份有限公司 腔体滤波器
CN102255124A (zh) * 2011-04-22 2011-11-23 深圳市大富科技股份有限公司 腔体滤波器、通信设备、通信设备盖板组件及调谐结构
US20140132372A1 (en) * 2012-11-13 2014-05-15 Communication Components Inc. Intermodulation distortion reduction system using insulated tuning elements
CN103700912A (zh) * 2013-12-31 2014-04-02 深圳市大富科技股份有限公司 腔体滤波器及其盖板

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109989990A (zh) * 2019-05-16 2019-07-09 深圳市国人射频通信有限公司 一种自锁组件及应用该种自锁组件的调谐装置
CN112670683A (zh) * 2019-10-15 2021-04-16 深圳市大富科技股份有限公司 腔体滤波器及其盖板以及通信设备

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