KR100328243B1 - Dielectric resonator filter - Google Patents

Dielectric resonator filter Download PDF

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Publication number
KR100328243B1
KR100328243B1 KR1019970065517A KR19970065517A KR100328243B1 KR 100328243 B1 KR100328243 B1 KR 100328243B1 KR 1019970065517 A KR1019970065517 A KR 1019970065517A KR 19970065517 A KR19970065517 A KR 19970065517A KR 100328243 B1 KR100328243 B1 KR 100328243B1
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South Korea
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dielectric resonator
tem
case
resonator
dielectric
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KR1019970065517A
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Korean (ko)
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KR19990047206A (en
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박타준
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이형도
삼성전기주식회사
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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
    • 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
    • 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
    • H01P1/2053—Comb or interdigital filters; Cascaded coaxial cavities the coaxial cavity resonators being disposed parall to each other
    • 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
    • H01P1/2082—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with multimode 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

PURPOSE: A dielectric resonator filter is provided to improve a spurious feature and an insertion loss feature by embodying a dielectric resonator filter by a dielectric resonator having a lower insertion loss feature and a TEM resonator having a good spurious feature. CONSTITUTION: A dielectric resonator filter includes a case(21). Three spaces are formed by a barrier rib(25). A barrier rib hole(25a) is formed at the barrier rib(25). Connectors(22a,22b) are formed at both ends of the case(21). Inlet and outlet ports(23a,23b) are formed at the case(21). Wires(24a,24b) are installed between the connectors(22a,22b) and an internal resonator. Dielectric resonators(26,27) are installed at two spaces among three spaces formed by the barrier rib and operates as TE01δ mode. A TEM resonator is installed at one among three spaces formed by the barrier rib and operates as TEM mode.

Description

유전체 공진기필터Dielectric Resonator Filter

본 발명은 유전체 공진기필터에 관한 것으로, 특히 저삽입손실특성을 갖는 유전체공진기와 스퓨리어스특성이 우수한 TEM공진기로 유전체공진기필터를 구현시킴으로써, 스퓨리어스특성과 삽입손실특성을 개선시키도록 한 유전체 공진기필터에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dielectric resonator filter, and more particularly, to a dielectric resonator filter for improving spurious characteristics and insertion loss characteristics by implementing a dielectric resonator filter with a TEM resonator having a low insertion loss characteristic and a spurious characteristic. will be.

도 1은 종래 유전체 공진기필터에 대한 평면도이고, 도 2는 종래 유전체 공진기필터에 대한 정면도이다.1 is a plan view of a conventional dielectric resonator filter, and FIG. 2 is a front view of a conventional dielectric resonator filter.

도 1 및 도 2를 참조하면, 종래의 유전체공진기필터는 케이스(11)내부에 격벽이 형성되고, 상기 격벽에는 격벽구멍이 형성되어 있으며, 상기 격벽으로 구분된 케이스내부에는 TE10δ모드로 동작하는 3개의 유전체공진기(16,17,18)가 각각 구성되어 있다.1 and 2, in the conventional dielectric resonator filter, a partition wall is formed in a case 11, a partition hole is formed in the partition wall, and a case in which the partition divided by the partition wall is operated in a TE 10δ mode. Three dielectric resonators 16, 17 and 18 are respectively constructed.

그러나, 이와같이 구성된 종래의 유전체필터는 2차 고조파성분에 의해 스퓨리어스가 발생되는 문제점이 있었던 것이다.However, the conventional dielectric filter configured as described above has a problem in that spurious is generated by the second harmonic component.

본 발명은 상기한 문제점을 해결하기 위해 안출한 것으로, 따라서, 본 발명의 목적은 저삽입손실특성을 갖는 유전체공진기와 스퓨리어스특성이 우수한 TEM공진기로 유전체 공진기필터를 구현시킴으로써, 스퓨리어스특성과 삽입손실특성을 개선시키도록 한 유전체 공진기필터를 제공하는데 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems. Accordingly, an object of the present invention is to implement a dielectric resonator filter using a dielectric resonator having a low insertion loss characteristic and a TEM resonator having excellent spurious characteristics, thereby achieving spurious characteristics and insertion loss characteristics. To provide a dielectric resonator filter to improve the.

도 1은 종래 유전체 공진기필터에 대한 평면도이다.1 is a plan view of a conventional dielectric resonator filter.

도 2는 종래 유전체 공진기필터에 대한 정면도이다.2 is a front view of a conventional dielectric resonator filter.

도 3은 본 발명에 다른 유전체 공진기필터에 대한 평면도이다.3 is a plan view of a dielectric resonator filter according to the present invention.

도 4는 본 발명에 따른 유전체 공진기필터에 대한 정면도이다.4 is a front view of a dielectric resonator filter according to the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

20 : 유전체 공진기필터 21 : 케이스20: dielectric resonator filter 21: case

22a,22b : 커넥터 23a,23b : 입출력구22a, 22b: connector 23a, 23b: input / output port

24a,24b : 결합용도선 25 : 격벽24a, 24b: joining wire 25: bulkhead

25a : 격벽구멍 26,27 : 유전체공진기25a: bulkhead hole 26,27: dielectric resonator

26a,27a : 지지대 28 : TEM공진기26a, 27a: Support 28: TEM resonator

상기한 본 발명의 목적을 달성하기 위한 기술적인 수단으로써, 본 발명의 유전체 공진기필터는 소정형태의 케이스를 포함하며, 상기 케이스내부에 격벽에 의해서 3개의 공간이 형성되고, 상기 격벽 각각에 격벽구멍을 형성하고, 상기 케이스의 길이방향으로 양측 단면부에 커넥터를 형성하며, 상기 커넥터가 형성되는 케이스에는 입출력구를 형성하고, 또한 상기 커넥터와 내부의 공진기간에 자기결합을 위한 도선을 상기 커넥터와 내부 소정 단면간에 형성한 유전체 공진기에 있어서, 상기 격벽에 의해 이루어진 3개의 공간중 2개의 공간에 내장시켜 TE01δ모드로 동작하도록 한 유전체공진기; 상기 격벽에 의해 이루어진 3개의 공간중 1개의 공간에 내장시켜 TEM모드로 동작하도록 한 TEM공진기; 를 구비함을 특징으로 한다.As a technical means for achieving the above object of the present invention, the dielectric resonator filter of the present invention includes a case of a predetermined type, and three spaces are formed inside the case by partition walls, and partition walls are formed in each of the partition walls. A connector is formed at both end surfaces in the longitudinal direction of the case, and an input / output port is formed in the case in which the connector is formed, and a conductor for magnetic coupling in the resonance period between the connector and the connector is formed. A dielectric resonator formed between predetermined cross sections, comprising: a dielectric resonator built in two spaces of three spaces formed by the barrier rib to operate in a TE 01δ mode; A TEM resonator built in one of the three spaces formed by the partition walls to operate in a TEM mode; Characterized in having a.

이하, 본 발명에 따른 유전체 공진기필터에 대해서 첨부한 도면을 참조하여 상세하게 설명한다.Hereinafter, the dielectric resonator filter according to the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 다른 유전체 공진기필터에 대한 평면도이고, 도 4는 본 발명에 따른 유전체 공진기필터에 대한 정면도이다.3 is a plan view of a dielectric resonator filter according to the present invention, and FIG. 4 is a front view of a dielectric resonator filter according to the present invention.

도 3 및 도 4를 참조하면, 본 발명에 따른 유전체 공진기필터는 소정형태의 케이스(21)를 포함하며, 상기 케이스(21)내부에 격벽(25)에 의해서 3개의 공간이 형성되고, 상기 격벽(25) 각각에 격벽구멍(25a)을 형성하고, 상기 케이스(21)의 길이방향으로 양측 단면부에 커넥터(22a,22b)를 형성하며, 상기 커넥터(22a,22b)가 형성되는 케이스(21)에는 입출력구(23a,23b)를 형성하고, 또한 상기 커넥터(22a,22b)와 내부의 공진기간에 자기결합을 위한 도선(24a,24b)을 상기 커넥터(22a,22b)와 내부 소정 단면간에 형성시킨다.3 and 4, the dielectric resonator filter according to the present invention includes a case 21 having a predetermined shape, and three spaces are formed inside the case 21 by the partition wall 25. A partition 21 is formed in each of the partition holes 25a, and connectors 22a and 22b are formed at both end surfaces in the longitudinal direction of the case 21, and the connectors 22a and 22b are formed. Is formed in the input / output ports 23a and 23b, and the conductors 24a and 24b for magnetic coupling in the resonance period of the connector 22a and 22b are interposed between the connector 22a and 22b and the predetermined cross section inside. To form.

그리고, 상기 격벽(25)에 의해 이루어진 3개의 공간중 2개의 공간에 내장시켜 TE01δ모드로 동작하도록 한 유전체공진기(26,27)와, 상기 격벽(25)에 의해 이루어진 3개의 공간중 1개의 공간에 내장시켜 TEM모드로 동작하도록 한 TEM공진기(28)를 구성시킨다.Dielectric resonators 26 and 27 built into two of the three spaces formed by the partition wall 25 to operate in the TE 01δ mode, and one of the three spaces formed by the partition wall 25 A TEM resonator 28 configured to operate in a TEM mode by embedding in a space is configured.

또한, 상기 TEM공진기(28)는 상기 격벽(25)에 의해 이루어진 3개의 공간중 중앙공간에 위치시켜 구성하고, 상기 유전체공진기(26,27)는 소정높이의 지지대(26a,27a)에 의해 지지되도록 구성하며, 상기 TEM공진기(28)는 금속등의 도전체로 이루어진 일정높이의 원기둥형상으로 구성한다.In addition, the TEM resonator 28 is configured to be located in the central space of the three spaces formed by the partition wall 25, the dielectric resonators 26, 27 are supported by the support (26a, 27a) of a predetermined height The TEM resonator 28 is configured in a cylindrical shape having a predetermined height made of a conductor such as metal.

이와같이 구성된 본 발명의 유전체 공진기필터에 따른 동작을 첨부도면에 의거하여 하기에 상세히 설명한다.Operation according to the dielectric resonator filter of the present invention configured as described above will be described in detail below based on the accompanying drawings.

도 3 및 도 4를 참조하여 본 발명에 따른 유전체 공진기필터에 대해서 설명하면, 본 발명에 의한 유전체 공진기필터(20)는 케이스(21)내부에 내장되는 공진기를, 종래에 유전체공진기만을 이용하는 것과는 달리, 저삽입손실특성을 갖는 유전체공진기와 스퓨리어스특성이 우수한 TEM공진기를 동시에 이용함으로서, 유전체공진기의 고조파성분을 상기 TEM공진기가 억제시키게 하여 고조파성분에 기인하는 스퓨리어스특성을 개선함과 동시에, 삽입손실을 개선할 수 있는 것으로, 이를 하기에 보다 구체적으로 설명한다.Referring to the dielectric resonator filter according to the present invention with reference to Figures 3 and 4, the dielectric resonator filter 20 according to the present invention, unlike the conventional resonator built in the case 21, using only the dielectric resonator By simultaneously using a dielectric resonator having a low insertion loss characteristic and a TEM resonator having excellent spurious characteristics, the TEM resonator suppresses the harmonic components of the dielectric resonator, thereby improving the spurious characteristics caused by the harmonic components and at the same time, reducing the insertion loss. As can be improved, this will be described in more detail below.

도 2와 도 3에 도시된 유전체 공진기필터(20)의 동작은 하나의 커넥터(22a)로 신호가 입력되면, 이 신호는 도선(24a)으로 통해서 유전체공진기(26)로 결합되고, 상기 유전체공진기(26)로부터의 신호는 격벽(25)의 격벽구멍(25)을 통해서 인접 TEM공진기(28)로 결합되며, 상기 TEM공진기(28)로부터의 신호는 격벽(25)의 격벽구멍(25)을 통해서 인접 유전체공진기(27)로 결합되어, 상기 유전체공진기(27)로부터의 신호는 도선(24b) 및 커넥터(22b)를 통해 출력된다.In the operation of the dielectric resonator filter 20 shown in FIGS. 2 and 3, when a signal is input to one connector 22a, the signal is coupled to the dielectric resonator 26 through the conductive line 24a, and the dielectric resonator The signal from 26 is coupled to adjacent TEM resonator 28 through partition hole 25 of partition 25, and the signal from TEM resonator 28 passes through partition hole 25 of partition 25. Coupled to the adjacent dielectric resonator 27 through, the signal from the dielectric resonator 27 is output through the conductive wire 24b and the connector 22b.

상기 유전체 공진기필터(20)에서 상기 설명한 바와같이 신호결합으로 이루어져 입력신호가 출력되는데, 이때, 상기 유전체 공진기필터(20)의 유전체공진기(26)에서는 입력되는 신호에 대해서 TE01δ모드 이외에 불필요한 TM10,TM10δ,TM011tδ,EH11δ,HE11δ모드로 동작한다.As described above, the dielectric resonator filter 20 is composed of signal combinations, and an input signal is output. In this case, in the dielectric resonator 26 of the dielectric resonator filter 20, an unnecessary TM 10 signal other than the TE 01δ mode is unnecessary for the input signal. And TM 10δ , TM 011tδ , EH 11δ , HE 11δ modes.

상기 TE01δ모드는 원하는 모드이지만, 상기 TM10,TM10δ,TM011tδ,EH11δ,HE11δ모드는 원하지 않은 모드로서, 이 원하지 않은 공진모드에 의해서 스퓨리어스가 발생된다.The TE 01δ mode is a desired mode, but the TM 10 , TM 10δ , TM 011tδ , EH 11δ , and HE 11δ modes are undesired modes, and spurious is generated by this undesired resonance mode.

상기 유전체공진기(26)에 의한 TE01δ모드와 TM10,TM10δ,TM011tδ,EH11δ,HE11δ모드를 포함하는 신호는 격벽구멍(25a)을 통해서 인접한 TEM공진기(28)로 결합되는데, 상기 TEM공진기(28)는 TEM모드로 동작하는 공진기로 상기 불필요한 TM10,TM10δ,TM011tδ,EH11δ,HE11δ모드는 차단되고, TE01δ모드만 격벽구멍(25a)을 통해 인접 유전체공진기(27)로 전달한다. 그리고, 상기 TE01δ모드의 신호를 전달받은 유전체공진기(27)는 이 신호를 출력 커넥터(22b)로 출력하게 된다.The signal including the TE 01δ mode and the TM 10 , TM 10δ , TM 011tδ , EH 11δ , and HE 11δ modes by the dielectric resonator 26 are coupled to the adjacent TEM resonator 28 through the partition hole 25a. The TEM resonator 28 is a resonator operating in a TEM mode, and the unnecessary TM 10 , TM 10δ , TM 011tδ , EH 11δ , and HE 11δ modes are blocked, and only the TE 01δ mode is adjacent to the dielectric dielectric resonator 27 through the partition hole 25a. To pass). The dielectric resonator 27 receiving the TE 01δ mode signal outputs the signal to the output connector 22b.

상술한 바와같은 본 발명에 따르면, 저잡입손실특성을 갖는 유전체공진기와 스퓨리어스특성이 우수한 TEM공진기를 이용하여 유전체공진기필터를 구현시킴으로써, 스퓨리어스특성과 삽입손실특성을 개선할 수 있는 효과가 있다.According to the present invention as described above, by implementing a dielectric resonator filter using a dielectric resonator having a low noise loss characteristics and a TEM resonator having excellent spurious characteristics, there is an effect that can improve the spurious characteristics and insertion loss characteristics.

이상의 설명은 본 발명의 일실시예에 대한 설명에 불과하며, 본 발명은 그 구성의 범위내에서 다양한 변경 및 개조가 가능한다.The above description is only a description of one embodiment of the present invention, the present invention is capable of various changes and modifications within the scope of the configuration.

Claims (4)

소정형태의 케이스(21)를 포함하며, 상기 케이스(21)내부에 격벽(25)에 의해서 3개의 공간이 형성되고, 상기 격벽(25) 각각에 격벽구멍(25a)을 형성하고, 상기 케이스(21)의 길이방향으로 양측 단면부에 커넥터(22a,22b)를 형성하며, 상기 커넥터(22a,22b)가 형성되는 케이스(21)에는 입출력구(23a,23b)를 형성하고, 또한 상기 커넥터(22a,22b)와 내부의 공진기간에 자기결합을 위한 도선(24a,24b)을 상기 커넥터(22a,22b)와 내부 소정 단면간에 형성한 유전체 공진기에 있어서,It includes a case 21 of a predetermined form, three spaces are formed in the inside of the case 21 by the partition wall 25, a partition hole 25a is formed in each of the partition walls 25, and the case ( The connectors 22a and 22b are formed at both end surfaces in the longitudinal direction of the 21, and the input and output ports 23a and 23b are formed in the case 21 in which the connectors 22a and 22b are formed. In the dielectric resonator in which the conductive wires 24a and 24b for magnetic coupling are formed between the connectors 22a and 22b and a predetermined cross section in the internal resonance period, 상기 격벽(25)에 의해 이루어진 3개의 공간중 2개의 공간에 내장시켜 TE01δ모드로 동작하도록 한 유전체공진기(26,27);Dielectric resonators 26 and 27 embedded in two of the three spaces formed by the partition walls 25 to operate in the TE 01δ mode; 상기 격벽(25)에 의해 이루어진 3개의 공간중 1개의 공간에 내장시켜 TEM모드로 동작하도록 한 TEM공진기(28);A TEM resonator 28 installed in one of three spaces formed by the partition 25 to operate in a TEM mode; 를 구비함을 특징으로 하는 유전체공진기필터.Dielectric resonator filter characterized in that it comprises a. 제1항에 있어서, 상기 TEM공진기(28)는 상기 격벽(25)에 의해 이루어진 3개의 공간중 중앙공간에 위치시켜 구성함을 특징으로 하는 유전체 공진기필터.The dielectric resonator filter according to claim 1, wherein the TEM resonator is located in a central space among three spaces formed by the partition walls. 제1항에 있어서, 상기 유전체공진기(26,27)는 소정높이의 지지대(26a,27a)에 의해 지지되도록 구성함을 특징으로 하는 유전체 공진기필터.The dielectric resonator filter according to claim 1, wherein the dielectric resonator (26, 27) is configured to be supported by a support (26a, 27a) having a predetermined height. 제1항에 있어서, 상기 TEM공진기(28)는 도전체로 이루어진 일정높이의 원기둥형상으로 이루어짐을 특징으로 하는 유전체 공진기필터.The dielectric resonator filter according to claim 1, wherein the TEM resonator (28) has a cylindrical shape having a predetermined height made of a conductor.
KR1019970065517A 1997-12-03 1997-12-03 Dielectric resonator filter KR100328243B1 (en)

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KR100375583B1 (en) * 2000-11-18 2003-03-15 센티스 주식회사 A dielectric filter and duplexer dielectric filter for removing higher-order mode harmonic frequency and for improving skirt and spurious response
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553268A (en) * 1978-06-22 1980-01-11 Murata Mfg Co Ltd 1/4 wavelength coaxial tem resonator device
JPH05235607A (en) * 1992-02-24 1993-09-10 Nippon Dengiyou Kosaku Kk Band pass filter
JPH06152203A (en) * 1992-11-10 1994-05-31 Nippon Dengiyou Kosaku Kk Comb-line type band pass filter
KR19980063241A (en) * 1996-01-08 1998-10-07 무라따 마치히로 Dielectric filter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553268A (en) * 1978-06-22 1980-01-11 Murata Mfg Co Ltd 1/4 wavelength coaxial tem resonator device
JPH05235607A (en) * 1992-02-24 1993-09-10 Nippon Dengiyou Kosaku Kk Band pass filter
JPH06152203A (en) * 1992-11-10 1994-05-31 Nippon Dengiyou Kosaku Kk Comb-line type band pass filter
KR19980063241A (en) * 1996-01-08 1998-10-07 무라따 마치히로 Dielectric filter

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