EP0980109A3 - Duplexer and communication apparatus - Google Patents

Duplexer and communication apparatus Download PDF

Info

Publication number
EP0980109A3
EP0980109A3 EP99115533A EP99115533A EP0980109A3 EP 0980109 A3 EP0980109 A3 EP 0980109A3 EP 99115533 A EP99115533 A EP 99115533A EP 99115533 A EP99115533 A EP 99115533A EP 0980109 A3 EP0980109 A3 EP 0980109A3
Authority
EP
European Patent Office
Prior art keywords
type filter
frequency variable
variable type
electrically connected
duplexer
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.)
Withdrawn
Application number
EP99115533A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0980109A2 (en
Inventor
Masayuki c/o Atokawa (A170) Intellect.Prop.Dep.
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
Publication of EP0980109A2 publication Critical patent/EP0980109A2/en
Publication of EP0980109A3 publication Critical patent/EP0980109A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
    • 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
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H01P1/2133—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using coaxial filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/10—Auxiliary devices for switching or interrupting
    • H01P1/15—Auxiliary devices for switching or interrupting by semiconductor devices
    • 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
    • H01P1/202—Coaxial filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transceivers (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Filters And Equalizers (AREA)
EP99115533A 1998-08-11 1999-08-05 Duplexer and communication apparatus Withdrawn EP0980109A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22704698 1998-08-11
JP10227046A JP2000059106A (ja) 1998-08-11 1998-08-11 アンテナ共用器及び通信機装置

Publications (2)

Publication Number Publication Date
EP0980109A2 EP0980109A2 (en) 2000-02-16
EP0980109A3 true EP0980109A3 (en) 2001-08-08

Family

ID=16854689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115533A Withdrawn EP0980109A3 (en) 1998-08-11 1999-08-05 Duplexer and communication apparatus

Country Status (3)

Country Link
EP (1) EP0980109A3 (ko)
JP (1) JP2000059106A (ko)
KR (1) KR100327534B1 (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4442052B2 (ja) 2001-05-11 2010-03-31 パナソニック株式会社 適応型高周波フィルタおよび適応型高周波アンテナ共用器およびそれらを用いた無線装置
US6950410B1 (en) 2000-07-14 2005-09-27 Telefonaktiebolaget Lm Ericsson (Publ) Frequency multiplexer
US6683513B2 (en) * 2000-10-26 2004-01-27 Paratek Microwave, Inc. Electronically tunable RF diplexers tuned by tunable capacitors
JP2003060408A (ja) * 2001-06-05 2003-02-28 Murata Mfg Co Ltd フィルタ部品および通信機装置
US6882836B2 (en) 2002-07-16 2005-04-19 Ericsson, Inc. GAIT antenna interface with special isolation mode
KR100613909B1 (ko) 2004-12-07 2006-08-22 한국전자통신연구원 폐루프 구조를 가지는 주파수 가변 필터
JP4647486B2 (ja) * 2005-12-27 2011-03-09 京セラ株式会社 送受信回路
JPWO2014157330A1 (ja) * 2013-03-26 2017-02-16 日本電気株式会社 無線通信システム
JP6319792B2 (ja) * 2014-03-25 2018-05-09 株式会社日立国際電気 周波数可変フィルタ
JP2018113547A (ja) 2017-01-10 2018-07-19 株式会社村田製作所 ローパスフィルタ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS639303A (ja) * 1986-06-30 1988-01-16 Murata Mfg Co Ltd マイクロ波フイルタ及びこれを用いた送受信機
EP0287671A1 (en) * 1986-10-06 1988-10-26 Matsushita Electric Industrial Co., Ltd. Antenna sharing device
US5065120A (en) * 1990-09-21 1991-11-12 Motorola, Inc. Frequency agile, dielectrically loaded resonator filter
EP0654912A1 (en) * 1993-11-24 1995-05-24 Murata Manufacturing Co., Ltd. Dielectric filter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2586333B2 (ja) * 1994-05-13 1997-02-26 日本電気株式会社 無線通信装置
KR970000666B1 (ko) * 1994-10-17 1997-01-16 현대전자산업 주식회사 듀얼-대역폭 셀룰라 전화 스위칭 장치 및 그 방법
JP2901181B2 (ja) * 1996-07-24 1999-06-07 五洋電子工業株式会社 アンテナ共用器
JP2803723B2 (ja) * 1996-09-02 1998-09-24 日本電気株式会社 周波数変換型フィルタ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS639303A (ja) * 1986-06-30 1988-01-16 Murata Mfg Co Ltd マイクロ波フイルタ及びこれを用いた送受信機
EP0287671A1 (en) * 1986-10-06 1988-10-26 Matsushita Electric Industrial Co., Ltd. Antenna sharing device
US5065120A (en) * 1990-09-21 1991-11-12 Motorola, Inc. Frequency agile, dielectrically loaded resonator filter
EP0654912A1 (en) * 1993-11-24 1995-05-24 Murata Manufacturing Co., Ltd. Dielectric filter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 211 (E - 622) 16 June 1988 (1988-06-16) *

Also Published As

Publication number Publication date
KR100327534B1 (ko) 2002-03-14
KR20000017227A (ko) 2000-03-25
JP2000059106A (ja) 2000-02-25
EP0980109A2 (en) 2000-02-16

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