KR101932947B1 - Triple mode Dielectric Resonator Filter using Compensation Block and Manufacturing Method Thereof - Google Patents

Abstract

The present invention relates to a triple mode dielectric resonator filter using a compensation block, wherein a triple mode dielectric resonator filter using a compensation block according to the present invention is a triple mode dielectric resonator filter including a cavity inside, A housing; A cover coupled to one side of the housing to close the cavity; A dielectric resonator having a screw mounting hole at the center thereof and being formed in a cavity of the housing and perpendicular to the longitudinal direction of the housing; A dielectric support coupled to the dielectric resonator through a thermoset bonding process and mounted in a cavity of the housing by a fixing screw passing through the screw mounting hole to support the dielectric resonator at a constant height; And a plurality of compensation blocks protruding at regular intervals on the dielectric resonator side to allow the dielectric resonator to operate in a triple mode.
Accordingly, it is an object of the present invention to provide a triple mode resonator using a compensation block capable of realizing a triple mode resonator while realizing a screw mounting hole at the center of a dielectric resonator by forming a compensation block in a dielectric resonator built in a housing constituting a filter, There is an effect of providing a resonator filter.

Description

[0001] The present invention relates to a triple mode dielectric resonator filter using a compensation block,

The present invention relates to a triple mode dielectric resonator filter using a compensation block. More particularly, the present invention relates to a dielectric resonator with a compensation block formed inside a housing constituting a filter to implement a screw mounting hole in the center of the dielectric resonator And a triple mode dielectric resonator filter using a compensation block capable of implementing a triple mode resonator at the same time.

In recent years, as communication services evolve, there is a demand for an increase in data transmission speed. In order to meet this demand, it is necessary to increase the system bandwidth, improve the reception sensitivity, and minimize the interference caused by other communication system carriers. For this purpose, a low insertion loss high rejection filter Need to provide.

In this situation, the dielectric resonator filter is able to realize low loss and high suppression characteristics, and the demand is increasing day by day.

However, such a dielectric resonator filter can realize a high performance, but it has a disadvantage that it is large in overall size and heavy in weight.

In addition, in the BTS base station system, all RF units are directly connected to the BTS antenna in order to prevent loss of transmission power and decrease in reception sensitivity due to the feed cable, and miniaturization and weight reduction of such RF units are an essential requirement And the size and weight of dielectric resonator filters, which have a great influence on the size, are becoming an important issue.

As a solution for achieving miniaturization and weight reduction of such a dielectric resonator filter, there is an increasing interest in a multimode dielectric resonator filter which forms a plurality of resonance modes with a single dielectric resonator. In the conventional multimode resonator filter A triple mode dielectric resonator filter of TE01δx, TE01δy, and TE01δz, which can be maximally implemented in terms of mass production in order to prevent interference between resonance modes due to the characteristics of a multi-mode resonator filter having a plurality of resonance modes in a single cavity have.

Generally, a dielectric resonator mounted inside the triple mode dielectric resonator filter can be manufactured in the form of a sphere, a cube, and a cylinder.

In addition, since most of the dielectric resonators including TE01δ single mode should be floating in the cavity of the coaxial cable, they can be mounted on a dielectric supporter made of alumina having a relatively low dielectric constant. have.

Here, the alumina dielectric support and the dielectric resonator are first bonded by bonding (epoxy), and then mounted on a housing constituting the resonator filter by a fixing screw, as shown in the following figures.

In the dielectric resonator according to the prior art, the mounting holes for mounting the fixing screws are formed at the center of the dielectric support and the dielectric resonator. In the case of the dielectric resonator operating in the triple mode, unlike the single mode, It is difficult to implement the dielectric resonator filter by separating the resonant frequencies of the TE01 delta x mode, the TE01 delta y mode, and the TE01 delta z mode.

In order to solve such a problem, a dielectric resonator filter according to the related art has a structure in which a dielectric resonator, which operates in a triple mode without a fixing screw mounting hole, is mounted on the dielectric support after the dielectric support of alumina is first mounted on the housing, The dielectric support and the dielectric resonator are combined with each other through the heat curing process. However, when the heat curing process is performed, the plating site of the housing constituting the resonator filter is discolored or the coated surface is destroyed. It is impossible to apply a low-temperature curing bond having low rigidity. As a result, there is a problem that it is weak against external vibration or impact.

FIG. 1 is a diagram showing a schematic configuration of a single mode dielectric resonator filter having only TE01 delta according to the prior art, and FIG. 2 is a diagram showing a schematic configuration of a triple mode dielectric resonator filter of TE01 deltax, TE01 delta y and TE01 delta z according to the prior art .

1, the single mode dielectric resonator filter of FIG. 1 comprises a dielectric support 4 made of alumina and a screw hole (not shown) for mounting the fixing screw 2 in the center of a dielectric resonator 3 operating in a single mode 3-1) are formed.

In the single mode dielectric resonator filter, as described above, the epoxy bond is first applied to the coupling surface of the dielectric resonator and the dielectric support, and then the heat treatment for curing the epoxy bond is performed at a predetermined temperature. The dielectric resonator with the dielectric support is stably mounted by fixing screws to the housing constituting the resonator filter through the fixing screw mounting hole.

As described above, since the triple mode dielectric resonator filter of FIG. 2 has no hole for fixing the fixing screw in the center of the dielectric resonator 3, first, the alumina dielectric support 4 is fixed to the housing by the fixing screw 2 The bond may be applied to the coupling surface of the dielectric resonator and the dielectric support, and the heat treatment process for thermal curing may be performed.

The triple mode dielectric resonator filter according to the prior art has to use a bond that is cured at a low temperature in order to prevent discoloration of a silver or copper plated housing and surface defects of a painted housing in such a heat treatment process, Since the dielectric resonator has a lower rigidity than the hardened bond, there is a possibility that the dielectric resonator having a high weight is separated during an external vibration or an impact, which makes it difficult to realize a stable coupling structure.

Accordingly, there is a need for a realistic and applicable technology for a triple mode dielectric resonator filter capable of realizing a triple mode resonator while implementing a mounting hole for a screw at a center in a dielectric resonator built in a housing constituting the filter.

Korean Unexamined Patent Application Publication No. 10-1999-0047206 (Jul. 1999)

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide a dielectric resonator having a filter resonator with a compensation block, And a triple mode dielectric resonator filter using a compensation block capable of implementing a resonator.

A triple mode dielectric resonator filter using a compensation block according to an embodiment of the present invention is a triple mode dielectric resonator filter comprising: a housing having a cavity inside and one side opened; A cover coupled to one side of the housing to close the cavity; A dielectric resonator having a screw mounting hole at the center thereof and being formed in a cavity of the housing and perpendicular to the longitudinal direction of the housing; A dielectric support coupled to the dielectric resonator through a thermoset bonding process and mounted in a cavity of the housing by a fixing screw passing through the screw mounting hole to support the dielectric resonator at a constant height; And a plurality of compensation blocks protruding from the dielectric resonator at regular intervals to allow the dielectric resonator to operate in a triple mode.

The plurality of compensation blocks for operating the dielectric resonator in the triplet mode may be formed such that the dielectric resonators are paired with each other such that the horizontal cross section has a symmetrical shape.

The plurality of compensation blocks may be gently connected to a curved surface having a circular arc between the adjacent compensation blocks on the side of the dielectric resonator.

The triple mode dielectric resonator filter using the compensation block according to the embodiment of the present invention adjusts the length of a plurality of confronting blocks facing each other on the basis of the height of the dielectric resonator and the horizontal cross section of the dielectric resonator, The resonance frequency can be set.

The triple mode dielectric resonator filter using the compensation block according to the embodiment of the present invention is characterized in that when the height of the dielectric resonator is relatively larger than a length between a plurality of compensation blocks facing each other based on a horizontal cross section of the dielectric resonator, Wherein the resonant frequency of the TE01 delta x and TE01 delta y modes is higher than the resonant frequency of the TE01 delta z mode at the operating resonant frequency.

The triple mode dielectric resonator filter using the compensation block according to the embodiment of the present invention is characterized in that when the height of the dielectric resonator is relatively smaller than a length between a plurality of compensation blocks facing each other with respect to a horizontal cross section of the dielectric resonator, The resonant frequency of the TE01 delta x and TE01 delta y modes at the operating resonant frequency may be located at a frequency lower than the resonant frequency of the TE01 delta z mode.

The triple mode dielectric resonator filter using the compensation block according to the embodiment of the present invention operates in a triple mode when the height of the dielectric resonator is equal to the length between a plurality of compensation blocks facing each other on the basis of the horizontal cross section of the dielectric resonator The resonance frequency of the TE01 delta y mode and the resonance frequency of the TE01 delta z mode can be located at similar frequencies.

In the triple mode dielectric resonator filter using the compensation block according to the embodiment of the present invention, the dielectric support coupled with the dielectric resonator through the thermosetting bonding process may be bonded with an epoxy bonding material.

A method of fabricating a triple mode dielectric resonator filter using a compensation block according to another embodiment of the present invention is a method of fabricating a triple mode dielectric resonator filter comprising the steps of forming a dielectric resonator of dielectric material operating in a triple mode of TE01 delta x, TE01 delta y, A first step of providing a screw fixing hole at the center and a compensation block protruding at a predetermined interval on the side surface of the dielectric resonator; A second step of bonding and bonding an alumina dielectric support supporting the dielectric resonator through an epoxy bonding process and performing a heat curing process through a heat treatment process; And a third step of securing the dielectric support coupled with the dielectric resonator in the thermosetting process to the housing using a screw inserted through the screw fixing hole in the housing constituting the triple mode dielectric resonator filter, .

A method of fabricating a triple mode dielectric resonator filter using a compensation block according to an exemplary embodiment of the present invention includes adjusting a length of a plurality of confronting blocks facing each other based on a height of the dielectric resonator and a horizontal cross- .

As described above, according to the present invention, a compensation block is formed in a dielectric resonator built in a housing constituting a filter to implement a screw mounting hole in the center of the dielectric resonator, and a compensation block capable of implementing a triple mode resonator Mode triple mode dielectric resonator filter.

Further, the present invention has an effect of setting a resonance frequency operating in a triple mode by adjusting the length between a plurality of compensating blocks facing each other on the basis of the height of the dielectric resonator and the horizontal cross section of the dielectric resonator.

1 is a diagram showing a schematic configuration of a single mode dielectric resonator filter having only a TE01 delta mode according to the prior art.
2 is a diagram showing a schematic configuration of a triple mode dielectric resonator filter of TE01 delta x, TE01 delta y, and TE01 delta z modes according to the prior art.
3 is a cross-sectional view showing a schematic configuration of a triple mode dielectric resonator filter of TE01 delta x, TE01 delta y, and TE01 delta z modes according to an embodiment of the present invention.
FIG. 4 is a view schematically showing a dielectric resonator and a dielectric support constituting the triple mode dielectric resonator filter shown in FIG. 3. FIG.
FIG. 5 is a view for explaining the correlation between the diameter of the compensation block of the dielectric resonator shown in FIGS. 3 to 4 and the height of the compensation block.
6 is a flowchart schematically showing a method of manufacturing a triple mode dielectric resonator filter according to an embodiment of the present invention.
FIGS. 7 to 8 are diagrams for explaining a comparison between the triple mode dielectric resonator filter of TE01? X, TE01? Y, and TE01? Z modes according to the prior art and the embodiment of the present invention.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas.

Meanwhile, the meaning of the terms described in the present invention should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

The present invention relates to a dielectric resonator filter operating at a triple mode resonance frequency of TE01 delta x, TE01 delta y, and TE01 delta z modes.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a cross-sectional view showing a schematic configuration of a triple mode dielectric resonator filter of TE01 delta x, TE01 delta y, and TE01 delta z modes according to an embodiment of the present invention, Fig. 4 is a cross-sectional view of a dielectric resonator constituting the triple mode dielectric resonator filter shown in Fig. Figure 2 is a schematic representation of a dielectric support.

As shown in the figure, the triple mode dielectric resonator filter of the TE01 deltax, TE01 delta y, and TE01 delta z modes according to the embodiment of the present invention includes a housing 10, a cover 20, a dielectric resonator 100, a dielectric support 200, And a compensation block (300).

More specifically, the housing 10 may be formed so that one side of the housing 10 is opened while the cavity 1 is inside. The cover 20 is coupled to one side of the housing 10, (1).

The dielectric resonator 100 may have a mounting hole 101 for a screw in the center thereof and may be formed in the cavity 1 of the housing 10 and perpendicular to the longitudinal direction of the housing 10.

The dielectric support 200 is coupled to the dielectric resonator 100 through a thermosetting bonding process and passes through the screw mounting hole 101 in the cavity 1 of the housing 10 So that the dielectric resonator 100 can be supported at a predetermined height by being fixed by a fixing screw 2.

Here, the dielectric support 200 coupled with the dielectric resonator 100 through a thermosetting bonding process can be bonded with an epoxy-based bonding material to maintain a stable bonding state.

The plurality of compensation blocks 300 may protrude from the dielectric resonator 100 at regular intervals to allow the dielectric resonator 100 to operate in a triple mode.

In the embodiment of the present invention, the plurality of compensation blocks 300 will be described in more detail as follows.

According to the embodiment of the present invention, the plurality of compensation blocks 300 for operating the dielectric resonator 100 in the triple mode are formed such that the horizontal cross section of the dielectric resonator 100 has a symmetrical shape As shown in Fig.

Here, the plurality of compensation blocks 300 may be gently connected between the adjacent compensation blocks 300 on the side of the dielectric resonator 100, with a curved surface having a circular arc.

That is, as shown in FIGS. 3 to 4, in the embodiment of the present invention, the plurality of compensation blocks 300 may be formed such that the first to fourth compensation blocks are adjacent to each other at regular intervals, The second compensation block 320 and the third compensation block 330, the third compensation block 330 and the fourth compensation block 340, the first compensation block 310 and the second compensation block 320, And the fourth compensating block 340 and the first compensating block 310 are formed adjacent to each other, the curved surface may be connected to a curved surface having an arc.

It is also noted that the first compensation block 310 and the third compensation block 330 and the second compensation block 320 and the fourth compensation block 340 are located opposite to each other and symmetrically formed in the same shape have.

Here, the cross-sectional shape of the dielectric resonator 100 constituting the dielectric resonator filter operating in the triple mode according to the embodiment of the present invention is generally formed in a shape similar to a cross shape having a screw mounting hole 101 at its center .

Meanwhile, in the embodiment of the present invention, in order for the dielectric resonator 100 to operate in the triple mode, the height between the dielectric resonators and the length between the plurality of compensation blocks facing each other based on the horizontal cross section of the dielectric resonator can be adjusted .

The technical characteristics and the expected effects according to the embodiment of the present invention will be described in detail with reference to FIGS. 5 to 7. FIG.

FIG. 5 is a view for explaining the correlation between the diameter of the compensation block of the dielectric resonator shown in FIGS. 3 to 4 and the height of the compensation block.

5, a triple mode dielectric resonator filter using a compensation block according to an embodiment of the present invention includes a dielectric resonator 100 having a height (DR_height) of the dielectric resonator 100 described in FIGS. 3 to 4, It is possible to set the resonance frequency to operate in the triple mode by adjusting the length (Compensation block_diameter) between a plurality of compensation blocks facing each other on the basis of the horizontal cross section of the housing 10.

In this case, the DR_diameter (diameter) shown in the figure is a length indicating the horizontal cross-sectional diameter of the dielectric resonator according to the related art in a state where no compensation block is formed, and the total size of the dielectric resonator according to the embodiment of the present invention is reduced Can be adjusted as needed.

The triple mode dielectric resonator filter using the compensation block according to the embodiment of the present invention will be described in detail with reference to FIG. 5 (c).

In the embodiment of the present invention, when the height of the dielectric resonator is relatively larger than the length between the plurality of compensating blocks facing with respect to the horizontal cross section of the dielectric resonator, resonance in TE01 delta x, TE01 delta y mode at the resonant frequency operating in the triplet mode It can be seen that the frequency is located at a higher frequency than the resonance frequency of the TE01 delta z mode.

In other words, when the height of the dielectric resonator is relatively smaller than the length between the plurality of compensation blocks facing the horizontal cross section of the dielectric resonator, the resonance frequency of the TE01 delta x, TE01 delta y mode at the resonance frequency operating in the triple mode is TE01 delta z It is found that the resonance frequency is located at a lower frequency than the resonance frequency of the mode.

As a result, according to the embodiment of the present invention, when the height of the dielectric resonator is equal to the length between a plurality of compensating blocks facing each other on the basis of the horizontal cross section of the dielectric resonator, TE01 delta x, TE01 delta y The resonant frequency and the resonant frequency of the TE01 delta z mode can be located at similar frequencies.

By using the relationship between the height of the dielectric resonator and the compensation block, the triple mode dielectric resonator filter according to the embodiment of the present invention can set the resonance frequency operating in the optimized state.

6 is a flowchart schematically showing a method of manufacturing a triple mode dielectric resonator filter according to an embodiment of the present invention.

6, a method of fabricating a triple mode dielectric resonator filter according to an embodiment of the present invention includes a first step S100 of forming the dielectric resonator 100 by protruding the compensation block 300 described above, A second step S200 of coupling the dielectric resonator 100 and the dielectric support 200 and a third step S300 of securing the dielectric support 200 to the housing using the screw 2, have.

Such a dielectric resonator filter manufacturing method can overcome the problems of the conventional triple mode dielectric resonator filter.

More specifically, the first step S100 includes a screw fixing hole 101 at the center of a dielectric resonator 100 of a dielectric material operating in a triple mode of TE01? X, TE01? Y and TE01? Z, The compensation block 300 may be formed to protrude from the resonator 100 at regular intervals.

In the second step S200, the alumina dielectric support 200 supporting the dielectric resonator 100 is bonded and bonded through an epoxy bonding process, and a thermosetting process may be performed through a heat treatment process. As a result, the heat treatment can be performed at a higher temperature than in the prior art, so that the effect of the curing process can be enhanced.

In the third step S300, the dielectric support 200 coupled with the dielectric resonator 100 through the thermal curing process is mounted on the inside of the housing 10 constituting the triple mode dielectric resonator filter, And can be fixed to the housing 10 by using a screw 2 inserted through the hole 101.

Therefore, as described above, the method of fabricating the triple mode dielectric resonator filter according to the embodiment of the present invention optimizes the height of the dielectric resonator and the length between the plurality of opposing blocks facing each other on the basis of the horizontal section of the dielectric resonator To set the resonance frequency to operate in the triple mode.

FIGS. 7 to 8 are diagrams for comparing and comparing triple mode dielectric resonator filters of TE01? X, TE01? Y and TE01? Z according to the prior art and the embodiment of the present invention.

Referring to FIG. 7, a triple mode dielectric resonator filter according to the related art will now be described.

FIG. 7A shows a shape in which a hole for mounting a screw is implemented in the center of a triple-mode dielectric resonator filter of TE01 delta x, TE01 delta y, and TE01 delta z of a cylinder shape according to the conventional art without a compensation block.

Also, as shown in Figs. 7B and 7C, it can be seen that the E-field of the two modes TE01 deltax and TE01 delta y rotates through the central screw hole.

That is, as the E-field passes through a screw hole filled with air (air) having a dielectric constant of 1 rather than a ceramic dielectric material, the resonance frequency can move upward.

7 (d), the E-field of the TE01 delta z mode is hardly distributed around the screw hole, so that in this case, the resonance frequency is less influenced by the screw hole, and the existing resonance frequency can be maintained as it is.

As a result, FIG. 7E shows the results of analysis according to the prior art, and it can be seen that the resonance frequency of Mode 2 and Mode 3, which is TE01δx and TE01δy, is shifted by about 140 MHz from the TE01δz mode which is Mode1.

Next, a triple mode dielectric resonator filter according to an embodiment of the present invention will be described in detail with reference to FIG.

FIG. 8 shows the distribution of the E-field for each resonance mode rotating around each axis (x, y, z).

8 (a) shows the structure of a triple mode dielectric resonator filter having a compensation block according to the present invention.

In FIG. 8 (b), it can be seen that Mode 1 is TE01δx and the E-field rotates about the x axis through the side view of FIG. 8 (b). Mode 2 is the TE01.delta.y mode, It can be seen that the E-field rotates about the y-axis. Finally, Mode 3 is a TE01? Z mode, and it can be seen that the E-field rotates about the z-axis through the top view of Fig. 8 (d).

As a result, FIG. 8 (e) shows that by using the compensation block 300 according to the present invention as a simulation result for the triple mode dielectric resonator filter according to the embodiment of the present invention, all of the TE01 delta x, TE01 delta y, It can be seen that it has a resonance frequency.

As described above, according to the present invention, a compensation block is formed in a dielectric resonator built in a housing constituting a filter to realize a screw mounting hole in the center of the dielectric resonator, and a triple mode resonator, Mode dielectric resonator filter.

Further, the present invention has an effect of setting a resonance frequency operating in a triple mode by adjusting the length between a plurality of compensating blocks facing each other on the basis of the height of the dielectric resonator and the horizontal cross section of the dielectric resonator.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It is within the scope of the present invention that component changes to such an extent that they can be coped evenly within a range that does not deviate from the scope of the present invention.

1: cavity
2: Fixing screw
10: Housing
20: cover
100: dielectric resonator
101: Screw mounting hole
200: dielectric support
300: compensation block

Claims (9)

In a triple mode dielectric resonator filter,
A housing having one side opened with a cavity therein;
A cover coupled to one side of the housing to close the cavity;
A dielectric resonator having a screw mounting hole at the center thereof and being formed in a cavity of the housing and perpendicular to the longitudinal direction of the housing;
A dielectric support coupled to the dielectric resonator through a thermoset bonding process and mounted in a cavity of the housing by a fixing screw passing through the screw mounting hole to support the dielectric resonator at a constant height; And
And a plurality of compensation blocks protruding from the dielectric resonator at regular intervals to allow the dielectric resonator to operate in a triple mode.
12. The method of claim 1, wherein the plurality of compensation blocks for operating the dielectric resonator in a tri-
Wherein the dielectric resonator is formed such that the horizontal cross-sections of the dielectric resonators have a symmetrical shape.
The method of claim 2, wherein the plurality of compensation blocks comprise:
Wherein the dielectric resonator has a curved surface having a circular arc cross section between neighboring compensating blocks on the side of the dielectric resonator.
The method of claim 3,
Wherein a resonance frequency operating in a triple mode is set by adjusting a height of the dielectric resonator and a length between a plurality of facing compensation blocks on the basis of a horizontal cross section of the dielectric resonator, filter.
The method according to claim 4,
The resonance frequency of the TE01 delta x and TE01 delta y modes at the resonance frequency operating in the triple mode is larger than the resonance frequency of the TE01 delta z mode at the resonance frequency operating in the triple mode when the height of the dielectric resonator is relatively larger than the length between the plurality of compensating blocks, Wherein the resonant filter is located at a higher frequency than the frequency of the resonant filter.
The method according to claim 4,
The resonance frequency of the TE01 delta x and TE01 delta y modes at the resonance frequency operating in the triple mode is smaller than the resonance frequency of the TE01 delta z mode at the resonance frequency operating in the triple mode when the height of the dielectric resonator is relatively smaller than the length between the plurality of compensating blocks, Wherein the resonant filter is located at a lower frequency than the frequency of the resonant filter.
The method according to claim 4,
The resonance frequency of the TE01 delta x and TE01 delta y modes at the resonance frequency operating in the triple mode is larger than the resonance frequency of the TE01 delta z mode in the case where the height of the dielectric resonator is equal to the length between the plurality of compensating blocks facing each other with respect to the horizontal cross section of the dielectric resonator Is located at a similar frequency. ≪ RTI ID = 0.0 > A < / RTI >
The method of claim 3,
Wherein the dielectric support coupled to the dielectric resonator through a thermoset bonding process is bonded with an epoxy bonding material.
A method of manufacturing a triple mode dielectric resonator filter,
A first step of providing a screw fixing hole at the center of a dielectric resonator of a dielectric material operating in a triple mode of TE01 delta x, TE01 delta y and TE01 delta z, and forming a compensating block at a predetermined interval on the side surface of the dielectric resonator;
A second step of bonding and bonding an alumina dielectric support supporting the dielectric resonator through an epoxy bonding process and performing a heat curing process through a heat treatment process; And
A third step of fixing the dielectric support coupled with the dielectric resonator through a thermosetting process to the housing using a screw inserted through the screw fixing hole in the housing constituting the triple mode dielectric resonator filter; Wherein the resonator filter is formed of a dielectric material.

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