EP3568913A4 - Abstimmbare filtersysteme, vorrichtungen und verfahren - Google Patents

Abstimmbare filtersysteme, vorrichtungen und verfahren Download PDF

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Publication number
EP3568913A4
EP3568913A4 EP18738587.7A EP18738587A EP3568913A4 EP 3568913 A4 EP3568913 A4 EP 3568913A4 EP 18738587 A EP18738587 A EP 18738587A EP 3568913 A4 EP3568913 A4 EP 3568913A4
Authority
EP
European Patent Office
Prior art keywords
methods
devices
tunable filter
filter systems
systems
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Withdrawn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
EP18738587.7A
Other languages
English (en)
French (fr)
Other versions
EP3568913A1 (de
Inventor
Jørgen BØJER
Peter Dam MADSEN
Arthur S. Morris
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.)
Wispry Inc
Original Assignee
Wispry 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
Priority claimed from US15/402,982 external-priority patent/US10320357B2/en
Application filed by Wispry Inc filed Critical Wispry Inc
Publication of EP3568913A1 publication Critical patent/EP3568913A1/de
Publication of EP3568913A4 publication Critical patent/EP3568913A4/de
Withdrawn legal-status Critical Current

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
    • 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
    • H03H7/0153—Electrical filters; Controlling thereof
    • 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
    • H03H7/175—Series LC in series 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
    • H03H7/1758—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
    • H03H7/1766—Parallel LC in series 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
    • H03H7/1775—Parallel 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
    • H03H7/46—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H7/466—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source particularly adapted as input circuit for receivers
    • 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
    • H03H2007/013—Notch or bandstop filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/01—Tuned parameter of filter characteristics
    • H03H2210/012—Centre frequency; Cut-off frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/02—Variable filter component
    • H03H2210/025—Capacitor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2250/00—Indexing scheme relating to dual- or multi-band filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Filters And Equalizers (AREA)
EP18738587.7A 2017-01-10 2018-01-05 Abstimmbare filtersysteme, vorrichtungen und verfahren Withdrawn EP3568913A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/402,982 US10320357B2 (en) 2013-03-15 2017-01-10 Electromagnetic tunable filter systems, devices, and methods in a wireless communication network for supporting multiple frequency bands
PCT/US2018/012546 WO2018132314A1 (en) 2017-01-10 2018-01-05 Tunable filter systems, devices, and methods

Publications (2)

Publication Number Publication Date
EP3568913A1 EP3568913A1 (de) 2019-11-20
EP3568913A4 true EP3568913A4 (de) 2020-09-02

Family

ID=62840242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18738587.7A Withdrawn EP3568913A4 (de) 2017-01-10 2018-01-05 Abstimmbare filtersysteme, vorrichtungen und verfahren

Country Status (3)

Country Link
EP (1) EP3568913A4 (de)
CN (1) CN110495096A (de)
WO (1) WO2018132314A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10320357B2 (en) 2013-03-15 2019-06-11 Wispry, Inc. Electromagnetic tunable filter systems, devices, and methods in a wireless communication network for supporting multiple frequency bands
CN113796018B (zh) * 2019-05-08 2023-02-21 瑞典爱立信有限公司 多频带均衡器
CN112491367B (zh) * 2020-12-10 2024-06-07 富满微电子集团股份有限公司 低噪声放大电路、其控制方法与电子设备
CN112564645B (zh) * 2021-02-18 2021-05-28 广州慧智微电子有限公司 一种多频低噪声放大器
CN113037240B (zh) * 2021-03-08 2022-06-24 电子科技大学 一种具有连续频率可调特性的宽可调范围带阻滤波器装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150131492A1 (en) * 2013-07-29 2015-05-14 Wispry, Inc. Adaptive filter response systems and methods

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI239116B (en) * 2004-09-01 2005-09-01 Ind Tech Res Inst Dual-band bandpass filter
US7262677B2 (en) * 2004-10-25 2007-08-28 Micro-Mobio, Inc. Frequency filtering circuit for wireless communication devices
EP2530838B1 (de) * 2010-01-28 2018-11-07 Murata Manufacturing Co., Ltd. Abstimmbarer filter
FR2970129B1 (fr) * 2010-12-30 2013-01-18 Thales Sa Filtre variable par condensateur commute au moyen de composants mems
US9559659B2 (en) * 2013-03-15 2017-01-31 Wispry, Inc. Tunable filter systems, devices, and methods
US9786973B2 (en) * 2014-03-18 2017-10-10 Tdk Corporation Tunable filter using variable impedance transmission lines
JP6215072B2 (ja) * 2014-01-31 2017-10-18 株式会社東芝 チューナブルフィルタ、位相可変装置及びアンテナ装置
WO2016196981A1 (en) * 2015-06-05 2016-12-08 Wispry, Inc. Adaptive multi-carrier filter response systems and methods

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150131492A1 (en) * 2013-07-29 2015-05-14 Wispry, Inc. Adaptive filter response systems and methods

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018132314A1 *

Also Published As

Publication number Publication date
EP3568913A1 (de) 2019-11-20
CN110495096A (zh) 2019-11-22
WO2018132314A1 (en) 2018-07-19

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