DE602005023895D1 - Bandzurückweisungsfilter - Google Patents

Bandzurückweisungsfilter

Info

Publication number
DE602005023895D1
DE602005023895D1 DE602005023895T DE602005023895T DE602005023895D1 DE 602005023895 D1 DE602005023895 D1 DE 602005023895D1 DE 602005023895 T DE602005023895 T DE 602005023895T DE 602005023895 T DE602005023895 T DE 602005023895T DE 602005023895 D1 DE602005023895 D1 DE 602005023895D1
Authority
DE
Germany
Prior art keywords
rejection filter
band rejection
band
filter
rejection
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.)
Active
Application number
DE602005023895T
Other languages
English (en)
Inventor
Steve Beaudin
Chun-Yun Jian
Somsack Sychaleun
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.)
Nortel Networks Ltd
Original Assignee
Nortel Networks 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 Nortel Networks Ltd filed Critical Nortel Networks Ltd
Publication of DE602005023895D1 publication Critical patent/DE602005023895D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6406—Filters characterised by a particular frequency characteristic
    • H03H9/6409—SAW notch filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/191—Tuned amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H03F3/602—Combinations of several amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
    • H03H9/542—Filters comprising resonators of piezo-electric or electrostrictive material including passive elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
    • H03H9/547—Notch filters, e.g. notch BAW or thin film resonator filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/703—Networks using bulk acoustic wave devices
    • H03H9/706—Duplexers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/74—Multiple-port networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE602005023895T 2004-10-29 2005-09-30 Bandzurückweisungsfilter Active DE602005023895D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62304904P 2004-10-29 2004-10-29
PCT/CA2005/001492 WO2006045176A1 (en) 2004-10-29 2005-09-30 Band reject filters

Publications (1)

Publication Number Publication Date
DE602005023895D1 true DE602005023895D1 (de) 2010-11-11

Family

ID=36226813

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005023895T Active DE602005023895D1 (de) 2004-10-29 2005-09-30 Bandzurückweisungsfilter

Country Status (5)

Country Link
US (4) US7777597B2 (de)
EP (1) EP1807933B1 (de)
CN (2) CN101084623B (de)
DE (1) DE602005023895D1 (de)
WO (1) WO2006045176A1 (de)

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CN108832907A (zh) * 2018-05-25 2018-11-16 广州中海达卫星导航技术股份有限公司 数传电台宽带阻抗匹配网络及其设计方法
CN109818595A (zh) * 2018-12-13 2019-05-28 天津大学 一种带阻滤波器及通信设备
US11211676B2 (en) 2019-10-09 2021-12-28 Com Dev Ltd. Multi-resonator filters
CN111106811B (zh) * 2019-12-23 2023-09-19 同方电子科技有限公司 一种双端恒阻滤波组件
US11177837B1 (en) 2020-06-12 2021-11-16 Apple Inc. Duplexer with impedance inverters
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Also Published As

Publication number Publication date
US20110248795A1 (en) 2011-10-13
EP1807933A4 (de) 2009-06-10
US20120235877A1 (en) 2012-09-20
EP1807933A1 (de) 2007-07-18
US20080129411A1 (en) 2008-06-05
US8004371B2 (en) 2011-08-23
CN101084623A (zh) 2007-12-05
US7777597B2 (en) 2010-08-17
EP1807933B1 (de) 2010-09-29
US20100308911A1 (en) 2010-12-09
US8207799B2 (en) 2012-06-26
CN101084623B (zh) 2012-02-01
WO2006045176A1 (en) 2006-05-04
CN102497172A (zh) 2012-06-13

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