EP0556573A2 - Résonateur diélectrique et procédé de réglage de sa caractéristique - Google Patents

Résonateur diélectrique et procédé de réglage de sa caractéristique Download PDF

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Publication number
EP0556573A2
EP0556573A2 EP93100741A EP93100741A EP0556573A2 EP 0556573 A2 EP0556573 A2 EP 0556573A2 EP 93100741 A EP93100741 A EP 93100741A EP 93100741 A EP93100741 A EP 93100741A EP 0556573 A2 EP0556573 A2 EP 0556573A2
Authority
EP
European Patent Office
Prior art keywords
dielectric
internal conductor
conductor
face
dielectric resonator
Prior art date
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
German (de)
English (en)
Other versions
EP0556573B1 (fr
EP0556573A3 (en
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.)
Filing date
Publication date
Priority claimed from JP00920792A external-priority patent/JP3203728B2/ja
Priority claimed from JP31272092A external-priority patent/JP3293200B2/ja
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to EP97104903A priority Critical patent/EP0788178B1/fr
Priority to EP98104197A priority patent/EP0854531B1/fr
Publication of EP0556573A2 publication Critical patent/EP0556573A2/fr
Publication of EP0556573A3 publication Critical patent/EP0556573A3/en
Application granted granted Critical
Publication of EP0556573B1 publication Critical patent/EP0556573B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
EP19930100741 1992-01-22 1993-01-19 Résonateur diélectrique et procédé de réglage de sa caractéristique Expired - Lifetime EP0556573B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97104903A EP0788178B1 (fr) 1992-01-22 1993-01-19 Résonateur diélectrique
EP98104197A EP0854531B1 (fr) 1992-01-22 1993-01-19 Résonateur diélectrique et méthode d'ajustement d'un résonateur diélectrique

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
EP97104903A Division EP0788178B1 (fr) 1992-01-22 1993-01-19 Résonateur diélectrique
EP98104197A Division EP0854531B1 (fr) 1992-01-22 1993-01-19 Résonateur diélectrique et méthode d'ajustement d'un résonateur diélectrique

Publications (3)

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

Family

ID=27278386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930100741 Expired - Lifetime EP0556573B1 (fr) 1992-01-22 1993-01-19 Résonateur diélectrique et procédé de réglage de sa caractéristique

Country Status (3)

Country Link
EP (1) EP0556573B1 (fr)
DE (3) DE69321152T2 (fr)
FI (1) FI115337B (fr)

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 (fr) * 1996-02-16 1997-08-20 Murata Manufacturing Co., Ltd. Filtre diélectrique
EP0798803A2 (fr) * 1996-03-29 1997-10-01 Ngk Spark Plug Co., Ltd. Filtre diélectrique
EP0827232A2 (fr) * 1996-08-30 1998-03-04 Ngk Spark Plug Co., Ltd. Filtre diélectrique
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713801A (en) * 1980-06-28 1982-01-23 Nippon Dengiyou Kosaku Kk Interdigital band-pass filter
WO1983002853A1 (fr) * 1982-02-16 1983-08-18 Motorola Inc Filtre ceramique passe-bande
JPS59128801A (ja) * 1983-01-14 1984-07-25 Oki Electric Ind Co Ltd 誘電体フイルタの調整方法
WO1985000929A1 (fr) * 1983-08-15 1985-02-28 American Telephone & Telegraph Company Dispositif de circuit de micro-ondes et son procede de fabrication
GB2163606A (en) * 1984-08-21 1986-02-26 Murata Manufacturing Co Dielectric filter
JPS6285502A (ja) * 1985-10-11 1987-04-20 Fujitsu Ltd 誘電体フイルタ
JPH01212001A (ja) * 1988-02-18 1989-08-25 Matsushita Electric Ind Co Ltd 誘電体フィルタ
GB2240432A (en) * 1990-01-08 1991-07-31 Ngk Spark Plug Co Stripline filter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713801A (en) * 1980-06-28 1982-01-23 Nippon Dengiyou Kosaku Kk Interdigital band-pass filter
WO1983002853A1 (fr) * 1982-02-16 1983-08-18 Motorola Inc Filtre ceramique passe-bande
JPS59128801A (ja) * 1983-01-14 1984-07-25 Oki Electric Ind Co Ltd 誘電体フイルタの調整方法
WO1985000929A1 (fr) * 1983-08-15 1985-02-28 American Telephone & Telegraph Company Dispositif de circuit de micro-ondes et son procede de fabrication
GB2163606A (en) * 1984-08-21 1986-02-26 Murata Manufacturing Co Dielectric filter
JPS6285502A (ja) * 1985-10-11 1987-04-20 Fujitsu Ltd 誘電体フイルタ
JPH01212001A (ja) * 1988-02-18 1989-08-25 Matsushita Electric Ind Co Ltd 誘電体フィルタ
GB2240432A (en) * 1990-01-08 1991-07-31 Ngk Spark Plug Co Stripline filter

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 286 (E-541)(2733) 16 September 1987 & JP-A-62 085 502 ( FUJITSU LTD ) 20 April 1987 *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 522 (E-849)(3870) 21 November 1989 & JP-A-01 212 001 ( MATSUSHITA ELECTRIC IND. CO. LTD. ) 25 August 1989 *
PATENT ABSTRACTS OF JAPAN vol. 6, no. 72 (E-105)(950) 7 May 1982 & JP-A-57 013 801 ( NIPPON DENGIYOU KOUSAKU K.K. ) *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 256 (E-280)(1693) 22 November 1984 & JP-A-59 128 801 ( OKI DENKI KOGYO K.K. ) 25 July 1984 *

Cited By (11)

* 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 (fr) * 1996-02-16 1997-08-20 Murata Manufacturing Co., Ltd. Filtre diélectrique
US5841331A (en) * 1996-02-16 1998-11-24 Murata Manufacturing Co., Ltd. Dielectric filter
EP0798803A2 (fr) * 1996-03-29 1997-10-01 Ngk Spark Plug Co., Ltd. Filtre diélectrique
EP0798803A3 (fr) * 1996-03-29 1998-07-15 Ngk Spark Plug Co., Ltd. Filtre diélectrique
EP0827232A2 (fr) * 1996-08-30 1998-03-04 Ngk Spark Plug Co., Ltd. Filtre diélectrique
EP0827232A3 (fr) * 1996-08-30 1999-03-10 Ngk Spark Plug Co., Ltd. Filtre diélectrique
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
DE69328980D1 (de) 2000-08-10
DE69327118D1 (de) 1999-12-30
FI930252A0 (fi) 1993-01-22
FI115337B (fi) 2005-04-15
EP0556573B1 (fr) 1998-09-23
DE69328980T2 (de) 2001-02-15
FI930252A (fi) 1993-07-23
DE69327118T2 (de) 2000-06-15
DE69321152D1 (de) 1998-10-29
EP0556573A3 (en) 1993-10-20
DE69321152T2 (de) 1999-05-06

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