KR20090009633U - Effective Coupling of Dielectric Ceramic Filter - Google Patents

Effective Coupling of Dielectric Ceramic Filter Download PDF

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Publication number
KR20090009633U
KR20090009633U KR2020080003686U KR20080003686U KR20090009633U KR 20090009633 U KR20090009633 U KR 20090009633U KR 2020080003686 U KR2020080003686 U KR 2020080003686U KR 20080003686 U KR20080003686 U KR 20080003686U KR 20090009633 U KR20090009633 U KR 20090009633U
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dielectric ceramic
ceramic filter
coupling
block
filter
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KR2020080003686U
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Korean (ko)
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조성문
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조성문
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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
    • 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

Abstract

본 고안은 유전체 세라믹 필터의 효과적인 결합에 관한 것으로서, 특히 유전체 세라믹 필터를 구성하는 입출력단 블럭(20)과 내부 블럭(21)사이의 커플링을 효과적으로 조정가능하도록 ㄴ 자형(201) 개구면 형태로 구성하고, 특히 ㄴ 자형(201) 개구면 형태는 공진주파수 이동 및 대역폭 조정이 편리하여 상업적 이용이 가능하다.The present invention relates to the effective coupling of the dielectric ceramic filter, in particular in the form of the opening shape of the b-shaped 201 to effectively adjust the coupling between the internal block 21 and the input / output end block 20 constituting the dielectric ceramic filter. In particular, the B-shaped opening surface shape can be used commercially because the resonance frequency shift and bandwidth adjustment is convenient.

공진기, 필터, 결합계수, TE 모드 Resonator, filter, coupling coefficient, TE mode

Description

유전체 세라믹 필터의 효과적인 결합 {Effective Coupling of Dielectric Ceramic Filter}Effective Coupling of Dielectric Ceramic Filter

고주파 기기의 수요가 증가하면서 고주파 기기의 핵심 소자라고 할수 있는 소형이고 성능이 우수한 필터를 요구하고 있고 거기에 발맞추어 개발된 TE모드를 이용한 고주파 필터가 개발되었다.As the demand for high frequency equipment increases, there is a demand for a small, high performance filter, which is a key element of high frequency equipment, and a high frequency filter using a TE mode developed in accordance with this has been developed.

이동통신기기 발전과 더불어 휴대인터넷, 와이브로, 와이맥스 등 고주파 기기 사용이 증가하는 추세에 있고 거기에 발맞추어 고주파 필터의 수요가 증가하리라고 본다.With the development of mobile communication devices, the use of high-frequency devices such as mobile Internet, WiBro, and WiMAX is on the rise, and accordingly, demand for high-frequency filters will increase.

기존 도파관 필터의 크기를 줄이기 위해서 도파관에 공기가 아닌 유전체로 채워진 형태인 유전체 모노블럭 필터를 개발하였으나 유전체 모노블럭 필터는 TEM 모드를 이용하므로 공진주파수를 맞추기 위해서 축방향으로 길이를 줄이는데 길이를 줄이는데에도 한계가 있어 고주파에서는 이용이 불가능한 문제점이 있었다.In order to reduce the size of the existing waveguide filter, a dielectric monoblock filter, in which the waveguide is filled with a dielectric rather than air, was developed. There was a problem that can not be used at high frequencies.

이러한 문제점을 극복하기 위해 도 1과 같이 TE모드를 이용한 유전체 세라믹 필터를 개발하였으나 공진주파수 이동 및 대역폭 가감등 튜닝의 어려움이 있어 상업적으로 이용이 불가능하여 본 고안을 발명하게 되었다.In order to overcome this problem, a dielectric ceramic filter using TE mode has been developed as shown in FIG. 1, but the present invention has been invented because it is difficult to use commercially due to difficulty in tuning resonance frequency shift and bandwidth.

본 고안은 상기 문제점을 극복하기 위해 개구면을 ㄴ 형태(201)로 구비함으로서 튜닝이 보다 쉽고 상업적으로 이용이 가능하리라고 본다.The present invention is believed to be easier and commercially available to tune by providing an opening surface in the form b 201 to overcome the above problems.

본 고안은 유전체 세라믹 필터의 효과적인 결합에 관한 것이다. 유전체 세라믹 필터를 구성하는 입출력단 블럭(20)과 내부 블럭(21)사이의 결합량을 효과적으로 조정이 가능하도록 ㄴ 자형 결합면(201) 형태로 구성하였다.The present invention relates to an effective coupling of a dielectric ceramic filter. In order to effectively adjust the amount of coupling between the input / output end block 20 and the internal block 21 constituting the dielectric ceramic filter, the shape of the C-shaped coupling surface 201 is configured.

더욱 상세하게는, 상기 입출력단 블럭(20)과 내부 블럭(21)은 유전체로 채워진 직육면체 형태로서 입출력단과 ㄴ 형태(201) 결합면을 제외한 나머지는 도전성을 갖는 전극막(200) 형태로 이루어져 있다.In more detail, the input / output end block 20 and the inner block 21 are rectangular parallelepiped shapes filled with a dielectric, and the rest of the input / output end block 20 and the inner block 21 are formed in the form of an electrode film 200 having conductivity. .

상기 입출력단 블럭(20)과 내부 블럭(21)은 각각 하나의 TE 모드 공진기이고 사용자가 원하는 필터를 구성하기 위해 상기 내부 블럭(21) 1개이상을 접합시켜야 한다.The input / output end block 20 and the inner block 21 are each a TE mode resonator, and at least one inner block 21 must be bonded to form a filter desired by a user.

상기 내부 블럭(21)을 여러개 조합하면 사용자가 원하는 필터 성능을 구비할 수 있고 원하는 성능을 얻기 위해서 상기 전극막(200)을 제거할 수 있는 팁등으로 적절히 조정하면서 제거하면 된다.Combining a plurality of the inner blocks 21 may have a filter performance desired by a user and may be removed while appropriately adjusting with a tip for removing the electrode film 200 in order to obtain a desired performance.

TE모드를 이용한 유전체 세라믹 필터를 개발하였으나 공진주파수 이동 및 대역폭 가감등 튜닝의 어려움이 있어 상업적으로 이용이 불가능하여 본 고안에서는 결합량을 효과적으로 조정이 가능하도록 ㄴ 형태(201)의 결합면을 구비하였다.A dielectric ceramic filter using TE mode has been developed, but it is not commercially available because of difficulty in tuning resonance frequency shift and bandwidth, etc. In this design, the coupling face of type b (201) was provided to effectively adjust the amount of coupling. .

입출력단 블럭(20)과 내부 블럭(21) 사이의 결합면을 ㄴ 형태(201)로 구비하므로서 튜닝이 보다 쉽고 상업적으로 이용이 가능하리라고 본다.Since the coupling face between the input / output end block 20 and the inner block 21 is provided in the form b 201, tuning is easier and commercially available.

본 고안은 유전체 세라믹 필터의 효과적인 결합에 관한 것이다. The present invention relates to an effective coupling of a dielectric ceramic filter.

유전체 세라믹 필터를 구성하는 입출력단 블럭(20)과 내부 블럭(21)사이의 결합계수를 조정가능하도록 ㄴ 자형(201) 결합 형태로 구성하였다.The coupling coefficient between the input / output end block 20 and the internal block 21 constituting the dielectric ceramic filter can be adjusted to have a C shape 201.

더욱 상세하게는, 상기 입출력단 블럭(20)과 내부 블럭(21)은 유전체로 채워진 직육면체 형태로서 입출력단 블럭은 여러가지 형태로 입출력단을 구비할 수 있고 입출력단과 ㄴ 형태(201) 개구면을 제외한 나머지는 도전성을 갖는 전극막(200) 형태로 이루어져 있다.More specifically, the input / output end block 20 and the inner block 21 are rectangular parallelepiped forms filled with a dielectric, and the input / output end block may include the input / output end in various forms, except for the input / output end and the b-shaped opening 201. The remainder is in the form of an electrode film 200 having conductivity.

상기 입출력단 블럭(20)과 내부 블럭(21)은 하나의 TE 모드 공진기를 의미하고 사용자가 원하는 필터를 구성하기 위해 상기 내부 블럭(21)을 1개이상을 접합시켜야 한다. 상기 내부 블럭(21)을 여러개 조합하면 사용자가 원하는 필터 성능을 구비할 수 있고 원하는 성능을 얻기 위해서 상기 전극막(200)을 제거할 수 있는 팁등으로 적절히 조정하면서 제거하면 된다.The input / output end block 20 and the inner block 21 mean one TE mode resonator, and at least one of the inner blocks 21 must be bonded to form a filter desired by a user. Combining a plurality of the inner blocks 21 may have a filter performance desired by a user and may be removed while appropriately adjusting with a tip for removing the electrode film 200 in order to obtain a desired performance.

도 1은 종래의 유전체 세라믹 필터를 도시하였다. 종전과 같은 형태는 입출력단과 일자형(101) 개구면을 제외한 나머지는 도전성을 갖는 전극막(100) 형태로 이루어져 있고, 입출력단 블럭(10)과 내부 블럭(11)사이의 결합형태가 윗면과 아랫면에 닿는 일자형(101) 개구면으로 형성되므로 결합량을 효과적으로 조정이 불가능한 구조였다.1 shows a conventional dielectric ceramic filter. The former type is formed of an electrode film 100 having conductivity except for the input and output ends and the opening 101, and the coupling between the input and output end blocks 10 and the inner block 11 is upper and lower surfaces. Since it is formed with a straight 101 opening surface that touches the structure was unable to effectively adjust the amount of coupling.

이와 같은 문제점을 극복하기 위해 새로운 결합형태의 ㄴ 자형(201) 개구면 형태를 갖으면 결합량을 효과적으로 조정이 가능해 대역을 줄이거나 넓힐 수가 있게 되는 것이다.In order to overcome the above problems, the shape of the N-shaped opening 201 of the new coupling type can effectively adjust the coupling amount, thereby reducing or widening the band.

도 1은 종래의 유전체 세라믹 필터의 분해 사시도1 is an exploded perspective view of a conventional dielectric ceramic filter

도 2는 본 고안의 실시예를 나타낸 분해 사시도2 is an exploded perspective view showing an embodiment of the present invention

10, 20 : 입출력단 블럭10, 20: I / O block

11, 21 : 내부 블럭11, 21: internal block

100, 200 : 전극막100, 200: electrode film

101 : 일자형 개구면101: straight opening

201 : ㄴ 자형 개구면201: b shaped opening

Claims (1)

블럭의 결합면에 있어서,In the mating surface of the block, 블럭의 결합면에 ㄴ 형태(201)의 개구면을 갖고, 상기 개구면을 제외한 블럭면은 전도성을 지닌 전극막으로 구성된 것을 특징으로 하는 ㄴ 형태(201) 개구면 구조.B-shape opening surface structure, characterized in that it has an opening face of b-shape (201) on the joining surface of the block, and the block face except for the opening face is composed of a conductive electrode film.
KR2020080003686U 2008-03-21 2008-03-21 Effective Coupling of Dielectric Ceramic Filter KR20090009633U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10522890B2 (en) 2015-09-17 2019-12-31 Samsung Electronics Co., Ltd Waveguide filter including coupling window for generating negative coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10522890B2 (en) 2015-09-17 2019-12-31 Samsung Electronics Co., Ltd Waveguide filter including coupling window for generating negative coupling

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