CA2114029C - Construction de filtre dielectrique a bandes passantes multiples - Google Patents

Construction de filtre dielectrique a bandes passantes multiples

Info

Publication number
CA2114029C
CA2114029C CA002114029A CA2114029A CA2114029C CA 2114029 C CA2114029 C CA 2114029C CA 002114029 A CA002114029 A CA 002114029A CA 2114029 A CA2114029 A CA 2114029A CA 2114029 C CA2114029 C CA 2114029C
Authority
CA
Canada
Prior art keywords
filter
section
resonator
cross
configuration
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.)
Expired - Lifetime
Application number
CA002114029A
Other languages
English (en)
Other versions
CA2114029A1 (fr
Inventor
Darioush Agahi-Kesheh
Zdravko M. Zakman
Robert Kenoun
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of CA2114029A1 publication Critical patent/CA2114029A1/fr
Application granted granted Critical
Publication of CA2114029C publication Critical patent/CA2114029C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

L'invention est un filtre de duplexeur (280) d'encombrement minimum du genre filtre pour émetteur-récepteur radio. Ce filtre est constitué d'un premier bloc de filtrage (304, 308, 312, 316) comportant des résonateurs d'au moins une première configuration géométrique, et un second bloc de filtrage (320, 324, 328, 332, 336) comportant des résonateurs d'une seconde configuration géométrique. Ces deux blocs de filtrage ont des configurations géométriques différentes et de même, les admittances caractéristiques relatives des résonateurs des blocs de filtrage respectifs sont différentes. Étant donné que les résonateurs des deux blocs de filtrage ont des caractéristiques électriques différentes, on peut obtenir la réponse en fréquence désirée avec le filtre en utilisant des capacités de charge identiques.
CA002114029A 1992-05-26 1993-04-19 Construction de filtre dielectrique a bandes passantes multiples Expired - Lifetime CA2114029C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88808992A 1992-05-26 1992-05-26
US888,089 1992-05-26

Publications (2)

Publication Number Publication Date
CA2114029A1 CA2114029A1 (fr) 1993-12-09
CA2114029C true CA2114029C (fr) 1997-11-18

Family

ID=25392506

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002114029A Expired - Lifetime CA2114029C (fr) 1992-05-26 1993-04-19 Construction de filtre dielectrique a bandes passantes multiples

Country Status (9)

Country Link
JP (1) JP3205337B2 (fr)
KR (1) KR970000059B1 (fr)
CN (1) CN1029340C (fr)
CA (1) CA2114029C (fr)
FI (1) FI940399A0 (fr)
FR (1) FR2693037B1 (fr)
GB (1) GB2273393B (fr)
IT (1) IT1261678B (fr)
WO (1) WO1993024968A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4319241A1 (de) * 1993-06-09 1994-12-15 Siemens Matsushita Components Monolithisches Mikrowellen-Keramikfilter
US5502422A (en) * 1994-08-12 1996-03-26 Motorola, Inc. Filter with an adjustable shunt zero
US5748058A (en) * 1995-02-03 1998-05-05 Teledyne Industries, Inc. Cross coupled bandpass filter
JP3158963B2 (ja) * 1995-05-31 2001-04-23 株式会社村田製作所 アンテナ共用器
JPH10308604A (ja) * 1997-03-05 1998-11-17 Murata Mfg Co Ltd 誘電体フィルタ、誘電体デュプレクサおよびそれらの設計方法
US6087909A (en) * 1996-03-06 2000-07-11 Murata Manufacturing Co., Ltd. Dielectric filter having at least one stepped resonator hole with an elongated cross-section
ATE280441T1 (de) * 1998-03-18 2004-11-15 Epcos Ag Mikrowellen-keramikfilter mit verbesserter flankensteilheit
JPH11312902A (ja) * 1998-04-30 1999-11-09 Murata Mfg Co Ltd 誘電体フィルタ、送受共用器および通信機
TW472444B (en) * 1998-07-08 2002-01-11 Samsung Electro Mech A duplexer dielectric filter
US6169465B1 (en) 1998-07-08 2001-01-02 Samsung Electro-Mechanics Co., Ltd. Duplexer dielectric filter
KR100375583B1 (ko) * 2000-11-18 2003-03-15 센티스 주식회사 고차모드 고조파의 제거 및 스커트와 스푸리어스주파수특성을 향상시킨 유전체 필터 및 듀플렉서 유전체필터
JP3788384B2 (ja) * 2001-05-30 2006-06-21 株式会社村田製作所 誘電体フィルタ、誘電体デュプレクサ、および通信装置
JP2003318606A (ja) 2002-04-23 2003-11-07 Sanyo Electric Co Ltd 誘電体フィルタ
JP3883902B2 (ja) 2002-04-25 2007-02-21 三洋電機株式会社 誘電体フィルタ
US9202660B2 (en) 2013-03-13 2015-12-01 Teledyne Wireless, Llc Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes
CN103246538B (zh) * 2013-05-16 2016-12-28 中国电子科技集团公司第四十一研究所 使微波仪器电路板智能化的插件方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152003A (ja) * 1984-08-21 1986-03-14 Murata Mfg Co Ltd 誘電体フイルタ
US4742562A (en) * 1984-09-27 1988-05-03 Motorola, Inc. Single-block dual-passband ceramic filter useable with a transceiver
US4954796A (en) * 1986-07-25 1990-09-04 Motorola, Inc. Multiple resonator dielectric filter
JPH01213002A (ja) * 1988-02-22 1989-08-25 Fuji Elelctrochem Co Ltd 誘電体分波器
US4879533A (en) * 1988-04-01 1989-11-07 Motorola, Inc. Surface mount filter with integral transmission line connection
US5109536A (en) * 1989-10-27 1992-04-28 Motorola, Inc. Single-block filter for antenna duplexing and antenna-summed diversity
US5208566A (en) * 1992-01-21 1993-05-04 Motorola, Inc. Dielectric filter having adjacently-positioned resonators of dissimilar cross-sectional dimensions and notched side surface

Also Published As

Publication number Publication date
CN1082773A (zh) 1994-02-23
GB2273393A (en) 1994-06-15
FR2693037B1 (fr) 1995-08-04
ITRM930345A0 (it) 1993-05-24
CN1029340C (zh) 1995-07-12
JP3205337B2 (ja) 2001-09-04
CA2114029A1 (fr) 1993-12-09
FI940399L (fi) 1994-01-26
FI940399A7 (fi) 1994-01-26
KR970000059B1 (ko) 1997-01-04
IT1261678B (it) 1996-05-29
ITRM930345A1 (it) 1994-11-24
WO1993024968A1 (fr) 1993-12-09
GB9400899D0 (en) 1994-04-13
JPH06509693A (ja) 1994-10-27
FI940399A0 (fi) 1994-01-26
GB2273393B (en) 1996-09-04
FR2693037A1 (fr) 1993-12-31

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