TM mode harmonic oscillator and preparation method thereof

A technology of harmonic oscillators and rotating shafts, applied in the field of TM mode harmonic oscillators and its preparation, can solve the problems of lowering the resonance frequency and failing to increase the dielectric constant, and achieve the effect of reducing the volume, reducing the loss, and increasing the dielectric constant

Active Publication Date: 2012-10-10
KUANG CHI INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the TM mode filter, the direction of the electric field is basically vertical, perpendicular to the plane where the metal microstructure is located, so the influence on the dielectric constant is very small, and it is impossible to increase the dielectric constant, reduce the resonance frequency, and realize miniaturization. Purpose

Method used

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  • TM mode harmonic oscillator and preparation method thereof
  • TM mode harmonic oscillator and preparation method thereof
  • TM mode harmonic oscillator and preparation method thereof

Examples

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no. 1 example

[0033] First manufacture the blank belt, the specific process is as follows:

[0034] The raw porcelain tape is made by tape casting or can be purchased directly in the market, and the thickness is 100-500 μm. Such as figure 2 As shown, a green ceramic tape 10 is used as a printing substrate, and a metal microstructure 11 is printed on it by a screen printing process to obtain a blank tape 1 .

[0035] The composition of the metal microstructure 11 can be various metal pastes used in the existing low-temperature co-firing process, in this embodiment, it is silver, and each metal microstructure 11 includes a cross shape formed by two mutually perpendicular silver lines The structure and the inline structure connected to the four ends of the cross-shaped structure form a symmetrical structure as a whole.

[0036] The metal microstructures 11 are arranged in a rectangular array on the green ceramic tape 10, and the row pitch (the distance between the center points of two adjac...

no. 2 example

[0044] To manufacture the green tape, the steps are exactly the same as those in the first embodiment, and the green tape 1 printed with the metal microstructure is obtained.

[0045] The specific process of manufacturing the billet is as follows:

[0046] After making blank strip 1, such as image 3 As shown, the base strip 1 is wound into a cylindrical base 2 on a cylindrical rotating shaft 20 under a certain pressure. In this embodiment, the rotating shaft 20 is made of organic material, and the organic material here is polytetrafluoroethylene, polyethylene, polypropylene, polystyrene or polymethyl methacrylate, etc., which have certain mechanical strength at room temperature. It is a material that resists the pressure caused by the winding of the blank 1 to prevent deformation, and can be burned or decomposed completely after heating before reaching 800 degrees Celsius.

[0047] Then sintering, the specific process is as follows:

[0048]Cold isostatic pressing is carri...

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Abstract

The invention relates to a method for preparing a TM mode harmonic oscillator, and the method comprises the following steps of manufacturing strip billet: printing a plurality of metal micro-structures which are periodically distributed on a green tape to prepare the strip billet; manufacturing barrel billet: coiling the strip billet on a rotating shaft to a preset thickness to obtain the barrel billet; sintering: conducting the low-temperature cofiring for the barrel billet to obtain the TM mode harmonic oscillator. The invention also relates a TM mode harmonic oscillator prepared by the method. Since a magnetic field direction when the TM mode is formed by a curved surface on which the metal micro-structures stay and the TM mode harmonic oscillator in a filter is basically parallel, the magnetic field can pass by the curved surface on which the metal micro structures stay, so that the sensing current produced by an alternative magnetic field is small, and the loss caused by the metal micro structures is small; and meanwhile, the metal micro structures are basically parallel to the direction of an electric field, so that the dielectric constant of the harmonic oscillator is maximally improved, and the sizes of a harmonic oscillation chamber and the filter are reduced.

Description

technical field [0001] The invention relates to a radio frequency element, more specifically, to a TM mode resonator and a preparation method thereof. Background technique [0002] The commonly used dielectric resonator is usually a homogeneous ceramic block, and the filter made of it has the advantage of miniaturization compared with the metal cavity series filter. However, the technology of the ceramic resonator is approaching maturity, and it is very difficult to further miniaturize the existing ceramic dielectric filter. Applying metamaterial technology to ceramic dielectric resonators can achieve further miniaturization, because metamaterials can achieve a higher dielectric constant than ceramic dielectrics, thereby reducing the resonance frequency of the filter; in other words, achieving the same resonance Under the condition of high frequency, metamaterials with high dielectric constant can reduce the volume of the resonant cavity, thereby realizing further miniaturi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P7/00H01P7/10H01P11/00
Inventor 刘若鹏徐冠雄刘京京缪锡根
Owner KUANG CHI INST OF ADVANCED TECH
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