EP0556573A2 - Dielektrischer Resonator und Verfahren zum Justieren seiner Charakteristik - Google Patents

Dielektrischer Resonator und Verfahren zum Justieren seiner Charakteristik Download PDF

Info

Publication number: EP0556573A2
Authority: EP; European Patent Office
Prior art keywords: dielectric; internal conductor; conductor; face; dielectric resonator
Prior art date: 1992-01-22
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP93100741A

Other languages

English (en)

French (fr)

Other versions

EP0556573A3 (en

EP0556573B1 (de

Inventor

Haruo c/o Murata Manufac. Co. Ltd. Matsumoto

Yasuo C/O Murata Manufac. Co. Ltd. Yamada

Yukihiro c/o Murata Manufac. Co. Ltd. Kitaichi

Tadahiro C/O Murata Manufac. Co. Ltd. Yorita

Hideyuki c/o Murata Manufac. Co. Ltd. Kato

Tatsuya c/o Murata Manufac. Co. Ltd. Tsujiguchi

Hisashi c/o Murata Manufac. Co. Ltd. Mori

Hitoshi c/o Murata Manufac. Co. Ltd. Tada

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Murata Manufacturing Co Ltd

Original Assignee

Murata Manufacturing Co Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1992-01-22

Filing date

1993-01-19

Publication date

1993-08-25

1992-01-22 Priority claimed from JP00920792A external-priority patent/JP3203728B2/ja

1992-10-28 Priority claimed from JP31272092A external-priority patent/JP3293200B2/ja

1993-01-19 Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd

1993-01-19 Priority to EP97104903A priority Critical patent/EP0788178B1/de

1993-01-19 Priority to EP98104197A priority patent/EP0854531B1/de

1993-08-25 Publication of EP0556573A2 publication Critical patent/EP0556573A2/de

1993-10-20 Publication of EP0556573A3 publication Critical patent/EP0556573A3/en

1998-09-23 Application granted granted Critical

1998-09-23 Publication of EP0556573B1 publication Critical patent/EP0556573B1/de

2013-01-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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Classifications

- 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

Definitions

the coupling degree between the resonators are adjusted by the partial deletion of the conductor and the dielectric in the area S12, S23, ... S n-1 n among the open portions of the internal conductor formed holes on the short-circuit face as described in Fig. 13 in this case.
the resonance frequency of the respective resonators can be adjusted by the partial deletion of the conductor and the dielectric in the regions of S1, S2, S3 ... Sn.
Fig. 25 is one basic plate for constituting a dielectric resonator.
reference character 1b is a dielectric basic plate.
Semicircular (sectional) two-line grooves are formed on one main face of the dielectric basic plate 1b with internal conductors 2b, 3b being formed on the inside face thereof.
the single side of the throttle portion is formed in one portion of the groove.
An external conductor 4b is formed on the other main face opposite to the internal conductor of the dielectric basic plate 1b and four side faces.
a dielectric resonator is composed with the basic plate shaped the same as the basic plate being connected opposite to each other.
Fig. 28 shows an embodiment 10.
Groove shaped concave portions 28 are formed in approximately parallel with the end face 22a side of the dielectric 22 on both the sides of the hole 23 with inside conductor 24 of the dielectric 22 being formed on the inside face.
An outside conductor 25 is formed across the outside face whole of the dielectric 22 including the concave portion 28. Accordingly, the interval between the outside conductor 25, which becomes an earth electrode of the bottom portion of the groove shaped concave portion 28, and the inside conductor 24 becomes shorter as shown in Fig. 28 (b), so that floating capacity Cs can be easily obtained.
the band width of the filter can be made larger by provision of, for example, the larger floating capacity Cs.
the resonator length becomes shorter and the size can be made smaller by provision of, for example, the larger floating capacity Cs.
the floating capacity Cs can be easily obtained, and also, the adjustment of the floating capacity Cs can be easily effected even in the filter of the construction of interdigital coupling.
Fig. 30 shows an embodiment 12.
the groove shaped concave portion 28 is formed on one side face of the dielectric 22.
the outside conductor 25 of the bottom portion of the concave portion 28 is approached towards the inside conductor 24 within the hole 23 of the dielectric 22 so as to easily obtain the floating capacity Cs.
the characteristic adjusting method of the dielectric resonator of the present invention there are steps of providing an open portion in one portion of the internal conductor only by the movement of a grinding tool in the axial direction of the internal conductor formed hole with the deletion locations of the internal conductor and the dielectric being restricted, and also, easily adjusting the tip end capacity by the moving amount. Further, a dielectric resonator having given resonance frequency and coupling amount can be easily obtained without the higher size accuracy to be demanded in the grinding working operation, because the tip end capacity is gradually lowered in spite of much grinding amount of the whole.

Landscapes

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

EP93100741A 1992-01-22 1993-01-19 Dielektrischer Resonator und Verfahren zum Justieren seiner Charakteristik Expired - Lifetime EP0556573B1 (de)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
EP97104903A EP0788178B1 (de)	1992-01-22	1993-01-19	Dielektrischer Resonator
EP98104197A EP0854531B1 (de)	1992-01-22	1993-01-19	Dielektrischer Resonator und Verfahren zum Justieren eines dielektrischen Resonators

Applications Claiming Priority (6)

Application Number	Priority Date	Filing Date	Title
JP00920792A JP3203728B2 (ja)	1991-11-08	1992-01-22	誘電体共振器およびその特性調整方法
JP9207/92		1992-01-22
JP29056/92U		1992-04-03
JP2905692		1992-04-03
JP31272092A JP3293200B2 (ja)	1992-04-03	1992-10-28	誘電体共振器
JP312720/92		1992-10-28

Related Child Applications (2)

Application Number	Title	Priority Date	Filing Date
EP98104197A Division EP0854531B1 (de)	1992-01-22	1993-01-19	Dielektrischer Resonator und Verfahren zum Justieren eines dielektrischen Resonators
EP97104903A Division EP0788178B1 (de)	1992-01-22	1993-01-19	Dielektrischer Resonator

Publications (3)

Publication Number	Publication Date
EP0556573A2 true EP0556573A2 (de)	1993-08-25
EP0556573A3 EP0556573A3 (en)	1993-10-20
EP0556573B1 EP0556573B1 (de)	1998-09-23

Family

ID=27278386

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP93100741A Expired - Lifetime EP0556573B1 (de)	1992-01-22	1993-01-19	Dielektrischer Resonator und Verfahren zum Justieren seiner Charakteristik

Country Status (3)

Country	Link
EP (1)	EP0556573B1 (de)
DE (3)	DE69328980T2 (de)
FI (1)	FI115337B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5517162A (en) *	1992-10-14	1996-05-14	Murata Manufacturing Co., Ltd.	Dielectric resonator including a plurality of solder bumps and method of mounting dielectric resonator
EP0790659A1 (de) *	1996-02-16	1997-08-20	Murata Manufacturing Co., Ltd.	Dielektrisches Filter
EP0798803A3 (de) *	1996-03-29	1998-07-15	Ngk Spark Plug Co., Ltd.	Dielektrisches Filter
EP0827232A3 (de) *	1996-08-30	1999-03-10	Ngk Spark Plug Co., Ltd.	Dielektrisches Filter
FR2785472A1 (fr) *	1998-11-03	2000-05-05	Samsung Electro Mech	Filtre dielectrique, en particulier pour systeme de communication mobile
CN1097861C (zh) *	1995-12-12	2003-01-01	株式会社村田制作所	介质滤波器
CN110676542A (zh) *	2019-09-05	2020-01-10	京信通信技术(广州)有限公司	端口耦合结构、滤波器及射频组件

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4431977A (en) *	1982-02-16	1984-02-14	Motorola, Inc.	Ceramic bandpass filter
US4523162A (en) *	1983-08-15	1985-06-11	At&T Bell Laboratories	Microwave circuit device and method for fabrication
JPS6152003A (ja) *	1984-08-21	1986-03-14	Murata Mfg Co Ltd	誘電体フイルタ
US5122768A (en) *	1990-01-08	1992-06-16	Nkg Spark Plug Co., Ltd.	Compact stripline filter with fixed capacity between coupled resonator fingers

1993
- 1993-01-19 EP EP93100741A patent/EP0556573B1/de not_active Expired - Lifetime
- 1993-01-19 DE DE69328980T patent/DE69328980T2/de not_active Expired - Lifetime
- 1993-01-19 DE DE69327118T patent/DE69327118T2/de not_active Expired - Lifetime
- 1993-01-19 DE DE69321152T patent/DE69321152T2/de not_active Expired - Lifetime
- 1993-01-22 FI FI930252A patent/FI115337B/fi not_active IP Right Cessation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5517162A (en) *	1992-10-14	1996-05-14	Murata Manufacturing Co., Ltd.	Dielectric resonator including a plurality of solder bumps and method of mounting dielectric resonator
CN1097861C (zh) *	1995-12-12	2003-01-01	株式会社村田制作所	介质滤波器
EP0790659A1 (de) *	1996-02-16	1997-08-20	Murata Manufacturing Co., Ltd.	Dielektrisches Filter
US5841331A (en) *	1996-02-16	1998-11-24	Murata Manufacturing Co., Ltd.	Dielectric filter
EP0798803A3 (de) *	1996-03-29	1998-07-15	Ngk Spark Plug Co., Ltd.	Dielektrisches Filter
EP0827232A3 (de) *	1996-08-30	1999-03-10	Ngk Spark Plug Co., Ltd.	Dielektrisches Filter
FR2785472A1 (fr) *	1998-11-03	2000-05-05	Samsung Electro Mech	Filtre dielectrique, en particulier pour systeme de communication mobile
CN110676542A (zh) *	2019-09-05	2020-01-10	京信通信技术(广州)有限公司	端口耦合结构、滤波器及射频组件
CN110676542B (zh) *	2019-09-05	2021-06-25	京信通信技术(广州)有限公司	端口耦合结构、滤波器及射频组件

Also Published As

Publication number	Publication date
DE69327118D1 (de)	1999-12-30
DE69321152T2 (de)	1999-05-06
EP0556573A3 (en)	1993-10-20
EP0556573B1 (de)	1998-09-23
DE69321152D1 (de)	1998-10-29
FI930252A0 (fi)	1993-01-22
FI930252L (fi)	1993-07-23
DE69328980T2 (de)	2001-02-15
DE69328980D1 (de)	2000-08-10
FI115337B (fi)	2005-04-15
DE69327118T2 (de)	2000-06-15

Legal Events

Date	Code	Title	Description
1993-07-09	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1993-08-25	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE GB SE
1993-09-01	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
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1996-01-17	17Q	First examination report despatched	Effective date: 19951201
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1998-01-22	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
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