DE69928586D1 - Filter - Google Patents

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Publication number
DE69928586D1
DE69928586D1 DE69928586T DE69928586T DE69928586D1 DE 69928586 D1 DE69928586 D1 DE 69928586D1 DE 69928586 T DE69928586 T DE 69928586T DE 69928586 T DE69928586 T DE 69928586T DE 69928586 D1 DE69928586 D1 DE 69928586D1
Authority
DE
Germany
Prior art keywords
filter
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
DE69928586T
Other languages
English (en)
Inventor
Koji Furutani
Norio Nakajima
Ken Tonegawa
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
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Application granted granted Critical
Publication of DE69928586D1 publication Critical patent/DE69928586D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0123—Frequency selective two-port networks comprising distributed impedance elements together with lumped impedance elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1758—Series LC in shunt or branch path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1791—Combined LC in shunt or branch path
DE69928586T 1998-01-13 1999-01-11 Filter Expired - Lifetime DE69928586D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10004880A JPH11205066A (ja) 1998-01-13 1998-01-13 フィルタ

Publications (1)

Publication Number Publication Date
DE69928586D1 true DE69928586D1 (de) 2006-01-05

Family

ID=11596000

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69928586T Expired - Lifetime DE69928586D1 (de) 1998-01-13 1999-01-11 Filter

Country Status (4)

Country Link
US (1) US6177850B1 (de)
EP (1) EP0929151B1 (de)
JP (1) JPH11205066A (de)
DE (1) DE69928586D1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1035648A3 (de) * 1999-03-10 2000-12-27 Matsushita Electric Industrial Co., Ltd. Bereichsumschaltbares Filter mit einem Oberflächenwellenresonator und Antennenduplexer mit solch einem Filter
JP2001060802A (ja) * 1999-08-19 2001-03-06 Sony Corp 回路素子基板と半導体装置及びその製造方法
JP2002204135A (ja) 2000-12-28 2002-07-19 Matsushita Electric Ind Co Ltd 高周波低域通過フィルタ
WO2012079777A1 (fr) * 2010-12-16 2012-06-21 Thomson Licensing Filtre stop bande actif
CN103023450B (zh) * 2011-02-16 2015-09-23 株式会社村田制作所 电子元器件
US9567569B2 (en) 2012-07-23 2017-02-14 Gamida Cell Ltd. Methods of culturing and expanding mesenchymal stem cells
US9175266B2 (en) 2012-07-23 2015-11-03 Gamida Cell Ltd. Enhancement of natural killer (NK) cell proliferation and activity
KR101980033B1 (ko) * 2015-03-30 2019-05-17 가부시키가이샤 무라타 세이사쿠쇼 고주파 필터, 프론트 엔드 회로, 및 통신 기기

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718117A (en) * 1985-10-30 1988-01-05 Capetronic (Bsr) Ltd. TVRO receiver system with low-cost video-noise reduction filter
US5065121A (en) * 1988-03-29 1991-11-12 Rf Products, Inc. Switchable resonator device
US4970479A (en) * 1989-11-27 1990-11-13 Rockwell International Corporation Multicoupler including frequency shift filters
US5065120A (en) * 1990-09-21 1991-11-12 Motorola, Inc. Frequency agile, dielectrically loaded resonator filter
FR2678450B1 (fr) * 1991-06-27 1993-09-03 Dassault Electronique Dispositif de filtrage coupe-bande hyperfrequence.
JP2794249B2 (ja) * 1992-06-15 1998-09-03 国際電気株式会社 高速同調フィルタ
FI97086C (fi) * 1994-02-09 1996-10-10 Lk Products Oy Järjestely lähetyksen ja vastaanoton erottamiseksi
JPH0851381A (ja) * 1994-08-04 1996-02-20 Uniden Corp 集積化が可能な高周波用ポート選択回路
JP3031178B2 (ja) * 1994-09-28 2000-04-10 株式会社村田製作所 複合高周波部品
KR0164410B1 (ko) * 1995-07-21 1999-03-20 김광호 스위칭 기능을 갖는 스트립라인 필터
JPH09200077A (ja) * 1996-01-16 1997-07-31 Murata Mfg Co Ltd 複合高周波部品
JPH10247833A (ja) * 1997-03-06 1998-09-14 Tokin Corp チューナブルフィルタ

Also Published As

Publication number Publication date
US6177850B1 (en) 2001-01-23
EP0929151B1 (de) 2005-11-30
JPH11205066A (ja) 1999-07-30
EP0929151A3 (de) 2001-05-23
EP0929151A2 (de) 1999-07-14

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Legal Events

Date Code Title Description
8332 No legal effect for de