Novel adjustable resonator

An adjustable and resonator technology, applied in the direction of resonators, waveguide devices, electrical components, etc., can solve the problems of high manufacturing cost, poor mechanical stability, poor tunability, etc., and achieve low manufacturing cost, tunability and mechanical Good stability and simple structure

Inactive Publication Date: 2015-03-11
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide a new type of adjustable resonator to solve...
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Abstract

The invention discloses a novel adjustable resonator which comprises a housing, a fixed internal conductor and a movable resonant frequency adjusting part, wherein the housing comprises a housing wall, a housing bottom and a housing cover; a resonant cavity is formed in the housing; the internal conductor is electrically connected to the housing bottom; the resonant frequency adjusting part comprises a conductive adjusting element, an upper conductive plate and a medium supporting element; the conductive adjusting element is connected with the upper conductive plate, and a main body of the conductive adjusting element is a longitudinal conductive valve rod; the conductive adjusting element can move down, so that the conductive valve rod can be connected with the internal conductor in a matched way. The novel adjustable resonator has the advantages that the resonant frequency adjusting range is wide, the tenability and the mechanical stability are good, the set resonant frequency can remain unchanged, the structure is simple, and the manufacturing cost is relatively low.

Application Domain

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  • Novel adjustable resonator
  • Novel adjustable resonator

Examples

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Example Embodiment

[0015] Attached Figure , To further explain the invention in detail.
[0016] See Figure 1, Figure 2. The adjustable resonator 100 of this embodiment includes a housing and a fixed internal conductor 101. The housing is composed of a housing wall 102, a housing bottom 107, and a housing cover 112; wherein the housing is at least partially made of conductive material And the inside is a resonant cavity 110, and the inner conductor 101 is electrically connected to the bottom 107 of the case.
[0017] The adjustable resonator 100 further includes a movable resonant frequency adjusting member 120, the resonant frequency adjusting member 120 includes a cylindrical conductive adjusting element, a conductive upper plate 105 and a dielectric support element 111, wherein the conductive adjusting element body is longitudinal The conductive valve stem 103 is provided with a conductive cap 104 at the upper end; the conductive valve stem 103 extends along the central axis of the housing and is perpendicular to the conductive cap 104, and the conductive upper plate 105 is arranged in the housing. The following table Surface with conductive cap 104 Above table There is a certain gap between the surfaces; the dielectric support element 111 connects the conductive adjustment element and the conductive upper plate 105 and passes through the cover 112. The adjusting member 120 realizes longitudinal movement by means of the part of the medium supporting element 111 outside the housing; the conductive upper plate 105 extends on a horizontal surface, and its outer surface is adjacent to the shell wall 102, The following table The surface defines the effective height of the resonant cavity 110. Preferably, the cross-sectional area of ​​the conductive upper plate 105 is larger than the cross-sectional area of ​​the conductive cap 104.
[0018] The inner conductor 101 is provided with a cylindrical groove 115 with an upward opening; the groove 115 is coaxial with the conductive valve stem 103, and has a diameter larger than that of the conductive valve stem 103, so that when the adjusting member 120 moves downward , The conductive valve stem 103 can be at least partially inserted into the groove 115. The inner surface of the groove 115 or the outer surface of the conductive valve stem 103 or both are coated with a dielectric coating 130 to ensure that there is no electrical conduction between the groove 115 and the conductive valve stem 103.
[0019] When the resonance frequency adjusting member 120 is at the uppermost position, the distance between the conductive valve stem 103 and the inner conductor 101 reaches the maximum, and the resonance frequency is the largest; when the resonance frequency adjusting member 120 moves down until the conductive valve stem 103 When the part is mated and connected with the inner conductor 101, the distance between the conductive valve stem 103 and the inner conductor 101 is reduced, the resonance frequency is reduced, and the capacitance between the conductive valve stem 103 and the inner conductor 101 is increased. In particular, from the stage where the part of the conductive valve stem 103 is matched and connected with the inner conductor 101 to when the conductive valve stem 103 is completely matched and connected with the inner conductor 101, the resonance frequency slowly increases back.
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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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