KR101826799B1 - Ceramic Resonator Filter including Coupling Member - Google Patents

Ceramic Resonator Filter including Coupling Member Download PDF

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Publication number
KR101826799B1
KR101826799B1 KR1020160032148A KR20160032148A KR101826799B1 KR 101826799 B1 KR101826799 B1 KR 101826799B1 KR 1020160032148 A KR1020160032148 A KR 1020160032148A KR 20160032148 A KR20160032148 A KR 20160032148A KR 101826799 B1 KR101826799 B1 KR 101826799B1
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KR
South Korea
Prior art keywords
coupling member
ceramic resonator
hole
housing
cavity
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KR1020160032148A
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Korean (ko)
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KR20170108370A (en
Inventor
윤재광
천동완
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주식회사 에이스테크놀로지
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Priority to KR1020160032148A priority Critical patent/KR101826799B1/en
Publication of KR20170108370A publication Critical patent/KR20170108370A/en
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Publication of KR101826799B1 publication Critical patent/KR101826799B1/en

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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
    • 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
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
    • H01P1/2056—Comb filters or interdigital filters with metallised resonator holes in a dielectric block
    • 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
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
    • H01P1/2084—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with dielectric 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

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A coupling member is a coupling member and a ceramic resonator filter is disclosed. The disclosed ceramic resonator filter includes a housing having at least one cavity formed therein and including a ceramic resonator accommodated in the cavity; A coupling member coupled to a lower portion of the ceramic resonator; And a cover coupled to one side of the housing, wherein the coupling member is electrically connected to the coupling member. According to the disclosed ceramic resonator filter, there is an advantage that it can stably have broadband characteristics.

Description

[0001] The present invention relates to a ceramic resonator filter including a coupling member,

The present invention relates to a ceramic resonator filter, and more particularly, to a ceramic resonator filter including a coupling member.

As the communication service evolves, the data transmission rate increases. For this, it is necessary to increase the system bandwidth, improve the reception sensitivity, and minimize the interference by other communication system carriers. To meet this demand, there is a growing demand for filters that satisfy wide-bandwidth, small-size, low insertion loss, and high rejection.

Coaxial resonators fabricated using metal materials are mainly used for filter implementation because they have advantages in terms of loss, size, and cost compared to other resonators such as dielectric resonators. However, due to the low power and small size of the base station system such as the small cell, the size of the conventional coaxial resonator is limited, and thus the use of the small ceramic resonator for the implementation of the ultra-small filter is increasing.

Therefore, there is a need for a stable input / output coupling structure having broadband characteristics in a ceramic resonator filter.

1 is a schematic view showing an exploded perspective view of a conventional ceramic resonator filter.

Referring to FIG. 1, a ceramic resonator 10 and a coupling structure 30 are disposed inside a conventional ceramic resonator filter. The coupling structure 30 receives a signal through the input and output unit 20 and the input signal is transmitted to the ceramic resonator 10 through coupling between the coupling structure 30 and the ceramic resonator 10. The signal outputted from the ceramic resonator 10 is transmitted to the coupling structure 30 through coupling and outputted through the input / output unit 20.

In the prior art ceramic resonator filter having the structure as shown in FIG. 1, the coupling structure 30 must be disposed close to the ceramic resonator 10 in order to have a wide band characteristic, thereby being sensitive to mechanical tolerance and assembly tolerance The stability of the ceramic resonator filter is deteriorated.

In order to solve the problems of the prior art as described above, the present invention provides a ceramic resonator filter which can stably have broadband characteristics.

In order to accomplish the above object, according to a preferred embodiment of the present invention, there is provided a piezoelectric resonator comprising: a housing including at least one cavity and including a ceramic resonator accommodated in the cavity; A coupling member coupled to a lower portion of the ceramic resonator; And a cover coupled to one side of the housing, wherein the coupling member is electrically connected to the connector.

And a portion of the coupling member coupled with the ceramic resonator has a disc shape.

And the coupling member is formed to extend in the direction of the connector.

In the ceramic resonator, a through hole is formed to pass from one side to the other side along one direction, and a hole is formed in a portion of the coupling member having a disk shape.

Wherein the housing includes a first protrusion protruding along the one direction on one side of the cavity, and the coupling member is disposed so that the first protrusion is inserted into the hole, and the ceramic resonator has the first through- And is disposed in the cavity so that the projection is inserted.

Wherein the inner diameter of the through hole is smaller than the inner diameter of the through hole at the other side and the coupling member and the ceramic resonator are fixed by a coupling part coupled to the projecting part, Is equal to or smaller than the inner diameter at one side of the hole and larger than the inner diameter at the other side of the through hole.

Wherein the housing includes a second protrusion protruding along the one direction on one side of the cavity, the second protrusion having an outer diameter larger than the hole, and the first protrusion protruding from an end of the second protrusion do.

The housing is formed with two or more cavities, and the cavity filter further includes a coupling member, wherein both ends of the coupling member are located close to two ceramic resonators, respectively, so that cross coupling between the two ceramic resonators .

Wherein the cover is formed with an insertion region for insertion of the pressing member and a thin film portion having a thickness lower than that of the body of the cover is formed in the insertion region, The thin film portion is inserted into the insertion region to press the thin film portion, and the ceramic resonator and the thin film portion are in contact with each other.

And a tuning bolt coupled to the cover, wherein the tuning bolt is inserted into the housing through the through hole.

And the insertion depth of the tuning bolt can be adjusted and fixed.

And the material of the housing and the cover is metal.

And the pressing member is made of a material having an elastic force.

The tuning bolt is made of a metal.

The ceramic resonator filter of the present invention is advantageous in that it can stably have broadband characteristics.

1 is a schematic view showing an exploded perspective view of a conventional ceramic resonator filter.
2 is a cross-sectional view of a ceramic resonator filter including a coupling member according to an embodiment of the present invention.
3 is an exploded perspective view of a pressing member applied to a ceramic resonator filter including a coupling member according to an embodiment of the present invention.
4 is a cross-sectional view of a pressing member applied to a ceramic resonator filter including a coupling member according to an embodiment of the present invention.
5 is a cross-sectional view of a region where a pressing member is applied in a ceramic resonator filter including a coupling member according to an embodiment of the present invention.
6 is a cross-sectional view of a ceramic resonator filter including a coupling member according to an embodiment of the present invention, in which a filter cover and a pressing member are combined.
7 is a perspective view of a coupling member in a ceramic resonator filter including a coupling member according to an embodiment of the present invention.
8 is a perspective view conceptually showing only a resonator portion in a ceramic resonator filter including a coupling member according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, 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. Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view of a ceramic resonator filter including a coupling member according to an embodiment of the present invention.

2, a ceramic resonator filter including a coupling member according to an embodiment of the present invention includes a housing 100, a pressing member 200, a cover 400, a cavity 110 of the housing 100, And a coupling member 500 inserted into the ceramic resonator 300. [

The housing 100 functions as a main body of the filter, and one or more cavities 110 may be formed in the housing 100. The cavity 110 is open to one side of the housing 100. The housing 100 may be formed of a conductive material, for example, a metal material.

Each cavity 110 is provided with a ceramic resonator 300. The ceramic resonator 300 is made of a ceramic material and has a through hole 350 passing through from one side to the other side along one direction. Due to the high dielectric constant of the ceramic material, the ceramic resonator 300 can be made even smaller than the coaxial resonator. At least one ceramic resonator 300 may be installed in the cavity 110, and two ceramic resonators 300 may be provided as shown in FIG.

Referring to FIG. 2, the cover 400 is configured to be coupled to an open side of the housing 100. As the cover 400 is coupled to the housing 100, the ceramic resonator 300 is accommodated in the cavity 110. The cover 400 may be formed of a conductive material such as the housing 100, and may be made of a metal or the like. And the inside of the filter is shielded by the electromagnetic wave by the cover 400 being coupled.

The cover 400 and the housing 100 may be coupled using various coupling schemes. In one example, the cover 400 may be coupled to the housing 100 using a plurality of bolts, or may be coupled to the housing 100 using soldering.

The housing 100 and the cover 400 of the filter are electrically grounded and secure the desired electrical characteristics and the ceramic resonator 300 needs to be firmly in close contact with the cover 400 And the pressing member 200 functions to provide a pressure for firm adhesion.

3 is an exploded perspective view of a pressing member applied to a ceramic resonator filter including a coupling member according to an embodiment of the present invention.

4 is a cross-sectional view of a pressing member applied to a ceramic resonator filter including a coupling member according to an embodiment of the present invention.

Referring to FIG. 3, the pressing member 200 according to an embodiment of the present invention may include an insertion portion 210, an elastic member 212, and a tuning bolt 214.

The insertion portion 210 is a portion inserted into the insertion area of the cover 400 to be described later. The insertion portion 210 may have a cylindrical structure, and a thread may be formed on the outer circumferential surface of the insertion portion 210 to be inserted into the insertion region of the cover 400. The insertion portion 210 is made of a metal material.

An insertion hole 220 is formed at the center of the insertion portion 210 and a tuning bolt 214 is coupled to the insertion hole 220. A thread is formed on the inner circumferential surface of the insertion hole 220 of the insertion portion 210 and a thread is formed on the outer circumferential surface of the tuning bolt 214 so that the tuning bolt is inserted into the insertion hole 212 by screwing. The tuning bolt 214 is inserted into the insertion hole 220 while rotating, and the insertion depth can be adjusted based on the degree of rotation.

An elastic member 212 is coupled to the lower portion of the insertion portion 210. For example, the elastic member 212 may be coupled to the lower portion of the insertion portion 210 by bonding, and various bonding methods other than bonding may be used.

Referring to FIG. 4, the elastic member 212 may have a ring shape having a hole at the center thereof. The elastic member 212 is a component for pressing the filter cover, for example, a rubber of a silicone material can be used as the elastic member 212. [

5 is a cross-sectional view of a region where a pressing member is applied in a ceramic resonator filter including a coupling member according to an embodiment of the present invention.

Referring to FIG. 5, a cover 400 according to an embodiment of the present invention may include a thin film portion 410, an inserting region 450, and a hole 420.

The cover 400 has a predetermined thickness and a rectangular shape. A thin film portion 410 having a thickness smaller than that of the cover 400 is formed on a predetermined portion of the cover 400. Since the thin film portion 410 having a thickness smaller than that of the cover 400 is formed, the cover 400 has the insertion region 450 in which the pressing member 200 can be inserted.

The thin film portion 410 has a ring shape and a hole 420 is formed at the center of the thin film portion 410. The thickness of the thin film portion 410 is set to such a degree that the thickness of the thin film portion 410 can be deformed by the pressing force of the pressing member 200. The thin film portion 410 preferably has a circular ring shape, and the hole 420 is also preferably circular.

A thread is formed on the inner circumferential surface of the insertion region 450 formed by the difference in thickness between the cover 400 and the thin film portion 410.

The position of the insertion region 450 formed in the cover 400 corresponds to the position of each ceramic resonator 300. The inserting region 450 is formed on the ceramic resonator 300. When the three ceramic resonators 300 are installed, three inserting regions 450 are formed in the cover.

The pressing member 200 is inserted into each of the insertion areas 450 and the number of the pressing members 200 corresponds to the number of the insertion areas 450. [ The pressing member 200 is inserted into the inserting area 450 to press the cover 400 so that the cover 110 and the ceramic resonator can be stably contacted.

6 is a cross-sectional view of a ceramic resonator filter including a coupling member according to an embodiment of the present invention, in which a filter cover and a pressing member are combined.

6, the insertion portion 210 of the pressing member 200 is inserted into the insertion region 450 formed due to the difference in thickness between the filter cover 400 and the thin film portion 410. The pressing member 200 can be inserted into the insertion area 450 in the form of a screw connection. The insertion portion 210 is inserted into the insertion region while being rotated by using the thread formed on the inner circumferential surface of the insertion region 450 and the thread formed on the outer circumferential surface of the insertion portion 210. [ The rotation of the insertion portion 210 is performed until the insertion portion 210 is fully seated in the insertion region 450.

The tuning bolt 214 is inserted into the hole 420 formed in the insert region 450. The tuning bolt 214 is inserted into the housing 100 through the hole 420 and the tuning bolt 214 is used to tune the characteristics of the filter. The tuning bolt 214 is used to tune the resonant frequency or bandwidth of the filter and tunes the resonant frequency or bandwidth characteristics of the filter while adjusting the insertion depth of the tuning bolt 214.

When the desired filter characteristic is secured through tuning, the position of the tuning bolt 214 is fixed using the nut 216. [

When the insertion portion 210 is inserted into the insertion region 450, the elastic member 212 coupled to the lower portion of the insertion portion 210 presses the thin portion 410 of the insertion portion 450. Since the thin film portion 410 has a thickness enough to deform the shape according to the pressure, the thin film portion is directed downward according to the pressing of the elastic member 212.

The elastic member 212, such as silicone rubber, provides an elastic force, so that it is possible to continuously press the thin film portion 410.

Referring to FIG. 2, a coupling member 500 may be inserted into a cavity 110 of a ceramic resonator filter including a coupling member according to an embodiment of the present invention. The coupling member 500 is made of metal and is configured to transmit input and output signals inside and outside the filter. Therefore, in the case of a filter composed of a plurality of cavities 110, the coupling member 500 can be constituted in a cavity in which input and output of signals from the outside occur. The coupling member 500 is mounted on the lower portion of the ceramic resonator 300 and transmits the transmitted signal to the ceramic resonator 300 using coupling.

7 is a perspective view of a coupling member in a ceramic resonator filter including a coupling member according to an embodiment of the present invention.

7, the coupling member 500 may include a metal plate 510, a first extending portion 530, a second extending portion 540, a third extending portion 550, a contact portion 560, And a hole 520 may be formed in the metal plate 510.

2 and 7, the coupling member 500 may be inserted into the cavity 110 by coupling a metal plate 510, which is formed in a circular plate shape, to the lower portion of the ceramic resonator 300. The coupling member 500 contacts the ceramic resonator 300 in the metal plate 510 and the transmitted signal is transmitted to the ceramic resonator 300 using coupling in the metal plate 510. The shape and size of the metal plate 510 may be formed in a circular plate shape corresponding to the shape of the ceramic resonator 300, but may be adjusted according to the desired input / output coupling amount.

A hole 520 may be formed in a predetermined region of the metal plate 510. The shape and size of the hole 520 may be formed to correspond to the lower surface of the ceramic resonator 300 to be coupled. The metal plate 510 can be more firmly coupled to the ceramic resonator 300 and the housing 100 because the first protrusion 150 of the housing 100 described later is inserted into the hole 520.

The coupling member 500 may be formed with a first extending portion 530 extending from the metal plate 510. The first extending portion 530 is formed to extend at a sufficient distance from the second extending portion 540 so that the second extending portion 540 will not contact the ceramic resonator 530. The first extending portion 530 includes the coupling member according to one embodiment of the present invention The ceramic resonator filter can be made to be stable with respect to the assembly tolerance by forming the first extended portion sufficiently long.

Further, a second extension part 540 may be formed at one end of the first extension part 530. The second extension 540 is formed to extend in a direction perpendicular to the first extension 530 so that when the coupling member 500 is disposed within the cavity 100, Output terminals 180 formed on the first insulating layer 180. [0033] As shown in FIG. The second extended portion 540 may not directly contact the ceramic resonator 300 and the housing 100 due to the first extended portion 530 and the third extended portion 550 described later.

The third extension 550 may extend from one end of the second extension 540 to the input / output terminal 180 formed in the housing 100. The coupling member 500 may be disposed adjacent to the input / output terminal 180 when the coupling member 500 is disposed inside the cavity 110 by forming the first extension portion 530, the second extension portion 540 and the third extension portion 550 .

The contact portion 560 may be formed at one end of the third extension portion 550. The contact portion 560 is formed adjacent to the input / output terminal 180 and makes contact with the connector 190 for transmitting a signal to enable input and output of signals through the coupling member 500. The contact portion 560 may have various shapes depending on a signal input / output method and a transmission method. Referring to FIGS. 2 and 7, the contact portion 560 may be manufactured in a suitable size and shape in consideration of the input / output terminal 180 and the connector 190.

The coupling member 500 is made of a metal material and is easy to transmit signals, and is used for signal input and output. When the coupling member 500 is used as an input unit, a signal is received at the contact unit 560, and the input signal is transmitted to the ceramic resonator 300 through coupling at the disk unit 510. Meanwhile, when the coupling member 500 is used for the output portion, the transmitted signal is transmitted to the disk portion 510 through the coupling in the ceramic resonator 300, and the transmitted signal is output through the contact portion 560 .

Referring to FIG. 2, a first protrusion 150 protruding along one direction from one surface of the cavity 110 may be formed in the housing 100. The hole 520 of the coupling member 500 and the through hole 350 of the ceramic resonator 300 are formed in the cavity 110 of the housing 100 when the coupling member 500 and the ceramic resonator 300 are mounted in the cavity 110 of the housing 100. [ The protrusion 150 can be inserted into the ceramic resonator 300, whereby the ceramic resonator 300 can be fixed in place.

In order to more firmly fix the coupling member 500 and the ceramic resonator 300, the protrusion 150 may be coupled with the coupling part 160. For example, the through-hole 350 of the ceramic resonator 300 may be formed to have a smaller inner diameter at the other side than at one side, and the protrusion 150 may be inserted into the through-hole 350 at the other side formed by a small inner diameter. have.

Here, the fastening part 160 configured to be coupled to the upper side of the protrusion 150 may be inserted into one side opposite to the through hole 350. The coupling part 160 may be coupled to the protrusion 150 so that the ceramic resonator 300 may be inserted into the cavity 110 and the coupling part 160 may be inserted into the through hole 350. [ It is possible to prevent departure from the predetermined position.

2 shows an example in which a thread is formed on one side of the protrusion 150 and a corresponding female thread is formed on the coupling part 160. Various methods can be used for coupling the coupling part 160 to the protrusion 150 There will be. In addition, although it is shown that the through-hole 350 has a different inner diameter at one side and the other side, the engagement jaw is formed, but the present invention is not limited thereto.

The fastening portion 160 can be made of various materials, including not only metals but also plastic materials.

If the coupling member 500 and the ceramic resonator 300 are fixed by other means such as a stripper bolt, the projecting portion 150 and the fastening portion 160 may be omitted. The coupling member 500 and the ceramic resonator 300 may be fixed in a fixed manner in the cavity 110 by using a pressing member and may be fixed to the inner surface of the cavity 110 and the outer surface of the ceramic resonator 300 The protrusions and the slots corresponding to each other may be formed and they may be engaged with each other to firmly fix the ceramic resonator 300 to a predetermined position. The coupling member 500 and the ceramic resonator 300 may be fixed by omitting the projecting portion 150 and the coupling portion 160 in various ways. If the projecting portion 150 and the coupling portion 160 are omitted in this way, the through hole 350 of the ceramic resonator 300 may have the same inner diameter at one side and the other side.

Referring to FIG. 2, a second protrusion 170 protruding from one side of the cavity 110 along one direction may be formed in the housing 100. The coupling member 500 and the ceramic resonator 300 may be disposed on the upper surface of the second protrusion 170 and the first protrusion 150 may be formed on the upper surface of the second protrusion 170. The length of the second extending portion 540 of the coupling member 500 is shorter than the length of the second protruding portion 170 when the second protruding portion 170 is not formed . The coupling member 500 can operate more stably due to the formation of the second projection 170 and the coupling amount of the input / output signal can be adjusted by adjusting the height of the second projection 170. Therefore, the ceramic resonator filter including the coupling member according to an embodiment of the present invention can realize characteristics ranging from a wide band to a narrow band by adjusting the height of the second projection 170.

8 is a perspective view conceptually showing only a resonator portion in a ceramic resonator filter including a coupling member according to an embodiment of the present invention.

That is, the housing 100 and the cover 400 are omitted, the cavity 110 formed in the housing 100 is shown, and the components in the cavity 110 are also shown.

A ceramic resonator filter including a coupling member according to an embodiment of the present invention may include a plurality of cavities 110a, 110b, and 110c in a housing 100 and may include a plurality of cavities 110a, 110b, and 110c, And may include ceramic resonators 300a, 300b, and 300c and coupling members 500a and 500c.

In the ceramic resonator filter including the coupling member according to the embodiment of the present invention shown in FIG. 7, a window is formed between the first cavity 110a and the second cavity 110b, and a window is formed between the second cavity 110b and the second cavity 110b. A window is formed between the third cavity 110c and the third cavity 110c. On the other hand, in order to realize a desired cross-coupling between the first cavity 110a isolated from each other and the first ceramic resonator 300a and the third ceramic resonator 300c in the third cavity 110c, Member 130 is provided.

The coupling member 130 may be coupled to the housing 100 so that both ends thereof are located close to the first ceramic resonator 300a and the third ceramic resonator 300c. The coupling member 130 made of a metal may cause cross coupling between the first ceramic resonator 300a and the third ceramic resonator 300c.

A space for disposing the coupling member 130 may be separately provided in the housing 100, and the coupling member 130 may be accommodated in the space.

Coupling member 130 may be used with a predetermined adjustment bolt 135. The user can manipulate the adjustment bolt 135 to adjust the relative position of the coupling member 130 with respect to the two resonators 300a and 300c. The adjustment bolt 135 may be configured to move the coupling member 130 in a specific direction when an operation is applied, or may be configured to only lock or release the coupling member 130 from the locked state. The adjustment bolt 135 may be shielded by the cover 200 so as not to protrude above the upper surface of the housing 100.

When a signal is input through the input line 190a, the signal is transmitted to the coupling member 500a. The transmitted signal causes resonance in the first resonator 300a through coupling and coupling by coupling with the second resonator 300b through the window between the first cavity 110a and the second cavity 110b Resonance occurs also in the second resonator 300b. Similarly, resonance occurs in the third resonator 300b by the coupling between the second resonator 300b and the third resonator 300c, which is performed through the window between the second cavity 110b and the third cavity 110c. do. Here, the coupling member 130 causes cross coupling between the first resonator 300a and the third resonator 300c, and finally, the signal filtered through the resonance of the third resonator 300c is coupled To the coupling member 500c, and the transmitted signal is output to the output line 190c.

As described above, the ceramic resonator filter including the coupling member according to the embodiment of the present invention can secure the stability against mechanical tolerance and assembly tolerance by using the input / output coupling structure formed of the coupling member, Band characteristics can be implemented in various ways.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- Those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

100: Housing
110: cavity
130: coupling member
135: Adjustment bolt
150: protrusion
160:
200: pressing member
210:
212: elastic member
214: Tuning bolt
216: Nut
220: insertion hole
300: Ceramic resonator
350: Through hole
400: cover
410: thin film part
420: hole
450: Insertion area
500: coupling member
510: metal plate
520: hole
530:
540: second extension part
550: third extension part
560:

Claims (14)

A housing having at least one cavity formed therein and including a ceramic resonator accommodated in the cavity;
A coupling member coupled to a lower portion of the ceramic resonator; And
And a cover coupled to one side of the housing,
Wherein the coupling member is electrically connected to the connector, and a portion of the coupling member coupled with the ceramic resonator has a disk shape.
delete The method according to claim 1,
And the coupling member extends in the direction of the connector. The method of claim 3,
The ceramic resonator has a through-hole penetrating from one side to the other along one direction,
And a hole is formed in a portion of the coupling member having a disk shape. 5. The method of claim 4,
Wherein the housing includes a first protrusion protruding along the one direction on one surface of the cavity,
Wherein the coupling member is arranged to insert the first projection into the hole,
Wherein the ceramic resonator is disposed in the cavity so that the first protrusion is inserted into the through hole. 6. The method of claim 5,
The inner diameter of the through hole is smaller than the inner diameter at one side and the inner diameter at the other side,
The coupling member and the ceramic resonator are fixed by a fastening portion coupled to the projection,
Wherein an outer diameter of the coupling portion is equal to or smaller than an inner diameter at one side of the through hole and larger than an inner diameter at the other side of the through hole. The method according to claim 6,
Wherein the housing includes a second protrusion protruding along the one direction on one surface of the cavity,
The outer diameter of the second projection is larger than the hole,
And the first protrusion protrudes from an end of the second protrusion. The method according to claim 1,
The housing has two or more cavities formed therein,
The cavity further includes a coupling member,
Wherein both ends of the coupling member are positioned close to two ceramic resonators to generate cross coupling between the two ceramic resonators. The method according to claim 1,
And a pressing member coupled to the cover,
Wherein an insertion region for inserting the pressing member is formed in the cover,
A thin film portion having a thickness lower than that of the main body of the cover is formed in the insertion region,
The pressing member is inserted into the insertion region to press the thin film portion,
Wherein the ceramic resonator and the thin film portion are in contact with each other. 10. The method of claim 9,
And a tuning bolt coupled to the cover,
Wherein the tuning bolt is inserted into the housing. 11. The method of claim 10,
Wherein a depth of insertion of the tuning bolt is adjustable and fixed. The method according to claim 1,
And the material of the housing and the cover is a metal. 10. The method of claim 9,
Wherein the pressing member is made of a material having elasticity. 11. The method of claim 10,
Wherein the tuning bolt is made of a metal.
KR1020160032148A 2016-03-17 2016-03-17 Ceramic Resonator Filter including Coupling Member KR101826799B1 (en)

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KR102193435B1 (en) * 2018-11-26 2020-12-21 주식회사 에이스테크놀로지 Ceramic Waveguide Filter and Manufacturing Method Thereof
KR102244811B1 (en) * 2018-12-17 2021-04-27 주식회사 이엠따블유 Resonator of rf filter
KR102344664B1 (en) * 2019-12-11 2021-12-30 주식회사 에이스테크놀로지 Ceramic Waveguide Filter and Manufacturing Method Thereof

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KR200241902Y1 (en) 2001-04-12 2001-10-11 센다스사이언스 주식회사 A antenna coupling probe for the duplexer consists of Tx and Rx bandpass filters
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US20020041221A1 (en) * 2000-07-17 2002-04-11 Jawad Abdulnour Tunable bandpass filter
KR200241902Y1 (en) 2001-04-12 2001-10-11 센다스사이언스 주식회사 A antenna coupling probe for the duplexer consists of Tx and Rx bandpass filters

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