ATE162020T1 - Bandpass-filter mit mehreren parallel geschalteten stufen - Google Patents

Bandpass-filter mit mehreren parallel geschalteten stufen

Info

Publication number
ATE162020T1
ATE162020T1 AT90108335T AT90108335T ATE162020T1 AT E162020 T1 ATE162020 T1 AT E162020T1 AT 90108335 T AT90108335 T AT 90108335T AT 90108335 T AT90108335 T AT 90108335T AT E162020 T1 ATE162020 T1 AT E162020T1
Authority
AT
Austria
Prior art keywords
parallel
bandpass filter
several stages
stages connected
input
Prior art date
Application number
AT90108335T
Other languages
English (en)
Inventor
Kikuo Wakino
Toshio Nishikawa
Youhei Ishikawa
Koichi Takehara
Toru Tanizaki
Original Assignee
Murata Manufacturing Co
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 filed Critical Murata Manufacturing Co
Application granted granted Critical
Publication of ATE162020T1 publication Critical patent/ATE162020T1/de

Links

Classifications

    • 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
    • H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Filters And Equalizers (AREA)
AT90108335T 1989-05-02 1990-05-02 Bandpass-filter mit mehreren parallel geschalteten stufen ATE162020T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11392789 1989-05-02
JP2103961A JPH0812961B2 (ja) 1989-05-02 1990-04-19 並列多段型帯域通過フィルタ

Publications (1)

Publication Number Publication Date
ATE162020T1 true ATE162020T1 (de) 1998-01-15

Family

ID=26444521

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90108335T ATE162020T1 (de) 1989-05-02 1990-05-02 Bandpass-filter mit mehreren parallel geschalteten stufen

Country Status (8)

Country Link
US (1) US5097236A (de)
EP (1) EP0396123B1 (de)
JP (1) JPH0812961B2 (de)
AT (1) ATE162020T1 (de)
DE (1) DE69031881T2 (de)
DK (1) DK0396123T3 (de)
ES (1) ES2112245T3 (de)
FI (1) FI98671C (de)

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US5307036A (en) * 1989-06-09 1994-04-26 Lk-Products Oy Ceramic band-stop filter
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JPH04132703U (ja) * 1991-05-31 1992-12-09 株式会社村田製作所 並列多段型帯域通過フイルタ
EP1146638B1 (de) * 1995-05-16 2003-10-29 Matsushita Electric Industrial Co., Ltd. Funkübertragungsvorrichtung für Zeitmultiplex-Vielfachzugriffssystem
US6107898A (en) * 1998-04-30 2000-08-22 The United State Of America As Represented By The Secretary Of The Navy Microwave channelized bandpass filter having two channels
US6337610B1 (en) 1999-11-22 2002-01-08 Comsat Corporation Asymmetric response bandpass filter having resonators with minimum couplings
JP2001345601A (ja) * 2000-03-30 2001-12-14 Toshiba Corp フィルタ回路
DE10208666A1 (de) * 2002-02-28 2003-09-04 Marconi Comm Gmbh Bandpassfilter mit parallelen Signalwegen
JP3932962B2 (ja) * 2002-04-17 2007-06-20 株式会社村田製作所 バンドパスフィルタ及び通信機
JP3705257B2 (ja) 2002-08-30 2005-10-12 株式会社村田製作所 並列多段型帯域通過フィルタ
US20050270120A1 (en) * 2004-06-02 2005-12-08 Jiunn-Sheng Guo Dielectric resonator filter and multiplexer
WO2006022672A1 (en) * 2004-07-30 2006-03-02 Raytheon Company Apparatus and methods for split-feed coupled-ring resonator-pair elliptic-function filters
FI20055420A0 (fi) * 2005-07-25 2005-07-25 Lk Products Oy Säädettävä monikaista antenni
FI119009B (fi) * 2005-10-03 2008-06-13 Pulse Finland Oy Monikaistainen antennijärjestelmä
FI118782B (fi) 2005-10-14 2008-03-14 Pulse Finland Oy Säädettävä antenni
JP2007174438A (ja) 2005-12-23 2007-07-05 Toshiba Corp フィルタ回路及びフィルタを備えた無線通信システム
US8618990B2 (en) 2011-04-13 2013-12-31 Pulse Finland Oy Wideband antenna and methods
JP4303272B2 (ja) * 2006-09-15 2009-07-29 株式会社東芝 フィルタ回路
FI20075269A0 (fi) * 2007-04-19 2007-04-19 Pulse Finland Oy Menetelmä ja järjestely antennin sovittamiseksi
FI120427B (fi) 2007-08-30 2009-10-15 Pulse Finland Oy Säädettävä monikaista-antenni
FI20096134A0 (fi) 2009-11-03 2009-11-03 Pulse Finland Oy Säädettävä antenni
FI20096251A0 (sv) 2009-11-27 2009-11-27 Pulse Finland Oy MIMO-antenn
US8847833B2 (en) * 2009-12-29 2014-09-30 Pulse Finland Oy Loop resonator apparatus and methods for enhanced field control
FI20105158A7 (fi) 2010-02-18 2011-08-19 Pulse Finland Oy Kuorisäteilijällä varustettu antenni
EP2378606A1 (de) 2010-04-16 2011-10-19 Astrium Limited Mehrbandfilter
US9406998B2 (en) 2010-04-21 2016-08-02 Pulse Finland Oy Distributed multiband antenna and methods
FI20115072A0 (fi) 2011-01-25 2011-01-25 Pulse Finland Oy Moniresonanssiantenni, -antennimoduuli ja radiolaite
US9673507B2 (en) 2011-02-11 2017-06-06 Pulse Finland Oy Chassis-excited antenna apparatus and methods
US8648752B2 (en) 2011-02-11 2014-02-11 Pulse Finland Oy Chassis-excited antenna apparatus and methods
WO2012164273A1 (en) * 2011-06-01 2012-12-06 Filtronic Wireless Ltd A microwave filter
US8866689B2 (en) 2011-07-07 2014-10-21 Pulse Finland Oy Multi-band antenna and methods for long term evolution wireless system
US9450291B2 (en) 2011-07-25 2016-09-20 Pulse Finland Oy Multiband slot loop antenna apparatus and methods
US9123990B2 (en) 2011-10-07 2015-09-01 Pulse Finland Oy Multi-feed antenna apparatus and methods
US9531058B2 (en) 2011-12-20 2016-12-27 Pulse Finland Oy Loosely-coupled radio antenna apparatus and methods
US9484619B2 (en) 2011-12-21 2016-11-01 Pulse Finland Oy Switchable diversity antenna apparatus and methods
US8988296B2 (en) 2012-04-04 2015-03-24 Pulse Finland Oy Compact polarized antenna and methods
JP5618034B2 (ja) 2012-08-10 2014-11-05 株式会社村田製作所 分岐ケーブル
US9979078B2 (en) 2012-10-25 2018-05-22 Pulse Finland Oy Modular cell antenna apparatus and methods
US10069209B2 (en) 2012-11-06 2018-09-04 Pulse Finland Oy Capacitively coupled antenna apparatus and methods
US10079428B2 (en) 2013-03-11 2018-09-18 Pulse Finland Oy Coupled antenna structure and methods
US9647338B2 (en) 2013-03-11 2017-05-09 Pulse Finland Oy Coupled antenna structure and methods
US9634383B2 (en) 2013-06-26 2017-04-25 Pulse Finland Oy Galvanically separated non-interacting antenna sector apparatus and methods
JP5620549B1 (ja) * 2013-07-16 2014-11-05 八重洲無線株式会社 帯域通過フィルタ及びそれを用いた無線受信機
US9312927B2 (en) * 2013-11-11 2016-04-12 Qualcomm Incorporated Tunable guard ring for improved circuit isolation
US9680212B2 (en) 2013-11-20 2017-06-13 Pulse Finland Oy Capacitive grounding methods and apparatus for mobile devices
US9590308B2 (en) 2013-12-03 2017-03-07 Pulse Electronics, Inc. Reduced surface area antenna apparatus and mobile communications devices incorporating the same
US9350081B2 (en) 2014-01-14 2016-05-24 Pulse Finland Oy Switchable multi-radiator high band antenna apparatus
US9973228B2 (en) 2014-08-26 2018-05-15 Pulse Finland Oy Antenna apparatus with an integrated proximity sensor and methods
US9948002B2 (en) 2014-08-26 2018-04-17 Pulse Finland Oy Antenna apparatus with an integrated proximity sensor and methods
US9722308B2 (en) 2014-08-28 2017-08-01 Pulse Finland Oy Low passive intermodulation distributed antenna system for multiple-input multiple-output systems and methods of use
US9906260B2 (en) 2015-07-30 2018-02-27 Pulse Finland Oy Sensor-based closed loop antenna swapping apparatus and methods
CN109906551A (zh) * 2016-11-08 2019-06-18 三菱电机株式会社 多波段滤波器
US12397126B2 (en) 2018-11-26 2025-08-26 Fisher & Paykel Healthcare Limited Diffuser for a component of a respiratory therapy system

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US2716733A (en) * 1950-05-10 1955-08-30 Exxon Research Engineering Co Variable bandwidth band-pass filter
US2709206A (en) * 1951-01-31 1955-05-24 Exxon Research Engineering Co Constant time delay band-pass filter
US3345589A (en) * 1962-12-14 1967-10-03 Bell Telephone Labor Inc Transmission line type microwave filter
FR1354860A (fr) * 1962-12-19 1964-03-13 Thomson Houston Comp Francaise Filtre de bande à déphasage linéaire
JPS6025129Y2 (ja) * 1980-08-27 1985-07-29 デイエツクスアンテナ株式会社 多チヤンネル混合分波器
US4395688A (en) * 1981-08-11 1983-07-26 Harris Corporation Linear phase filter with self-equalized group delay
JPS58141601U (ja) * 1982-03-19 1983-09-24 八木アンテナ株式会社 帯域通過炉波器
US4728913A (en) * 1985-01-18 1988-03-01 Murata Manufacturing Co., Ltd. Dielectric resonator
JPS61170166A (ja) * 1985-01-24 1986-07-31 Yagi Antenna Co Ltd ろ波回路
US4571560A (en) * 1985-05-21 1986-02-18 Zenith Electronics Corporation Switched bandpass filter
US4682131A (en) * 1985-06-07 1987-07-21 Motorola Inc. High-Q RF filter with printed circuit board mounting temperature compensated and impedance matched helical resonators

Also Published As

Publication number Publication date
FI98671B (fi) 1997-04-15
EP0396123A3 (de) 1990-12-12
ES2112245T3 (es) 1998-04-01
JPH0812961B2 (ja) 1996-02-07
US5097236A (en) 1992-03-17
DE69031881T2 (de) 1998-08-13
FI902185A0 (fi) 1990-05-02
EP0396123B1 (de) 1998-01-07
FI98671C (fi) 1997-07-25
EP0396123A2 (de) 1990-11-07
DE69031881D1 (de) 1998-02-12
JPH0372701A (ja) 1991-03-27
DK0396123T3 (da) 1998-09-07

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Legal Events

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UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee