SG10202004720SA - Variable filter - Google Patents

Variable filter

Info

Publication number
SG10202004720SA
SG10202004720SA SG10202004720SA SG10202004720SA SG10202004720SA SG 10202004720S A SG10202004720S A SG 10202004720SA SG 10202004720S A SG10202004720S A SG 10202004720SA SG 10202004720S A SG10202004720S A SG 10202004720SA SG 10202004720S A SG10202004720S A SG 10202004720SA
Authority
SG
Singapore
Prior art keywords
variable filter
variable
filter
Prior art date
Application number
SG10202004720SA
Other languages
English (en)
Inventor
Jorgen Staal Nielsen
Richard Nichols
Original Assignee
Anlotek 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 Anlotek Ltd filed Critical Anlotek Ltd
Publication of SG10202004720SA publication Critical patent/SG10202004720SA/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1208—Frequency selective two-port networks using amplifiers with feedback comprising an electromechanical resonator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1291—Current or voltage controlled 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
    • H03H2210/01—Tuned parameter of filter characteristics
    • H03H2210/015—Quality factor or bandwidth
SG10202004720SA 2015-11-23 2016-11-23 Variable filter SG10202004720SA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201562258867P 2015-11-23 2015-11-23

Publications (1)

Publication Number Publication Date
SG10202004720SA true SG10202004720SA (en) 2020-06-29

Family

ID=57442741

Family Applications (2)

Application Number Title Priority Date Filing Date
SG10202004720SA SG10202004720SA (en) 2015-11-23 2016-11-23 Variable filter
SG11201804302XA SG11201804302XA (en) 2015-11-23 2016-11-23 Variable filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
SG11201804302XA SG11201804302XA (en) 2015-11-23 2016-11-23 Variable filter

Country Status (10)

Country Link
US (2) US10050604B2 (fr)
EP (2) EP3381126B1 (fr)
JP (1) JP6770083B2 (fr)
KR (1) KR20180087341A (fr)
CN (1) CN109314505B (fr)
IL (1) IL259540B2 (fr)
MY (1) MY192162A (fr)
RU (2) RU2018122759A (fr)
SG (2) SG10202004720SA (fr)
WO (1) WO2017089803A1 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10050604B2 (en) 2015-11-23 2018-08-14 Aniotek Limited Variable filter
US9900197B1 (en) * 2016-10-03 2018-02-20 Keyssa Systems, Inc. BPSK demodulation
WO2018215973A1 (fr) 2017-05-24 2018-11-29 Jorgen Nielsen Appareil et procédé de commande d'un résonateur
US10498212B2 (en) * 2017-05-26 2019-12-03 Dialog Semiconductor (Uk) Limited Gate driver
US10355674B2 (en) * 2017-07-24 2019-07-16 Arm Limited Clock gating circuit
US10783223B2 (en) * 2017-10-12 2020-09-22 Pacesetter, Inc. Hybrid signal processing circuit for implantable medical devices and methods
US10164618B1 (en) * 2017-12-28 2018-12-25 Micron Technology, Inc. Jitter cancellation with automatic performance adjustment
GB201801241D0 (en) * 2018-01-25 2018-03-14 Eosemi Ltd Temperature compensated oscillator
CN109905095B (zh) * 2019-03-28 2021-06-04 电子科技大学 低频段的窄带可调滤波器
CN110401431B (zh) * 2019-07-18 2020-11-10 江苏康众数字医疗科技股份有限公司 一种频率跟随数字离散滤波器、实现方法及其应用
US11277110B2 (en) * 2019-09-03 2022-03-15 Anlotek Limited Fast frequency switching in a resonant high-Q analog filter
JP2023504732A (ja) * 2019-12-05 2023-02-06 アンロテック リミテッド 周波数合成における安定した調整可能なアクティブフィードバックアナログフィルタの使用
EP3890189A1 (fr) * 2020-03-30 2021-10-06 Anlotek Limited Filtres analogiques de rétroaction active avec résonateurs couplés
CN111585929B (zh) * 2020-05-13 2020-12-15 安徽省安泰科技股份有限公司 基于云计算的5g移动网络监控系统
EP3926828A1 (fr) 2020-06-15 2021-12-22 Anlotek Limited Filtre passe-bande réglable à haute stabilité et réglage orthogonal
US11381230B2 (en) * 2020-09-04 2022-07-05 Northeastern University Microelectromechanical tunable delay line circuit
WO2022051875A1 (fr) * 2020-09-14 2022-03-17 Jorgen Staal Nielsen Oscillateur doté d'un résonateur multipolaire
RU2749605C1 (ru) * 2020-12-08 2021-06-16 федеральное государственное бюджетное образовательное учреждение высшего образования «Донской государственный технический университет» (ДГТУ) Широкополосный полосовой фильтр четвертого порядка
RU2748610C1 (ru) * 2020-12-08 2021-05-28 федеральное государственное бюджетное образовательное учреждение высшего образования «Донской государственный технический университет» (ДГТУ) Широкополосный полосовой фильтр четвертого порядка с одним входом и парафазным выходом
RU2752254C1 (ru) * 2021-02-09 2021-07-23 федеральное государственное бюджетное образовательное учреждение высшего образования «Донской государственный технический университет» (ДГТУ) Полосовой фильтр четвертого порядка
RU2760871C1 (ru) * 2021-02-09 2021-12-01 федеральное государственное бюджетное образовательное учреждение высшего образования «Донской государственный технический университет» (ДГТУ) Полосовой фильтр четвертого порядка
TWI740783B (zh) * 2021-02-24 2021-09-21 中原大學 具類比濾波器之前饋式主動噪音控制系統的設計方法
TWI778525B (zh) * 2021-02-24 2022-09-21 中原大學 前饋式主動噪音控制系統的設計方法
US11955942B2 (en) 2021-02-27 2024-04-09 Anlotek Limited Active multi-pole filter
EP4084333A1 (fr) 2021-04-30 2022-11-02 Anlotek Limited Réduction du bruit de phase dans un résonateur rf analogique variable à condensateurs à valeur fixe et commutables
EP4089920A1 (fr) 2021-05-12 2022-11-16 Anlotek Limited Commutation de fréquence rapide dans un filtre rf variable
US11817630B2 (en) 2021-09-17 2023-11-14 City University Of Hong Kong Substrate integrated waveguide-fed Fabry-Perot cavity filtering wideband millimeter wave antenna
WO2023056533A1 (fr) * 2021-10-10 2023-04-13 Shaun Joseph Cunningham Dispositif et procédé de déploiement et de commande de prises actives
CN113890561B (zh) * 2021-11-17 2023-07-21 歌尔科技有限公司 一种电子设备及其射频电路
CN114265314B (zh) * 2021-12-23 2022-06-24 哈尔滨工业大学 一种基于fir滤波的鲁棒逆模型学习增益设计方法
CN117176100B (zh) * 2023-11-03 2024-02-23 苏州博海创业微系统有限公司 一种改善带内平坦度的带通滤波电路及滤波器

Family Cites Families (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990013175A1 (fr) 1989-04-21 1990-11-01 N.V. Philips' Gloeilampenfabrieken Amplificateur a circuits accordes
US5311198A (en) 1990-08-23 1994-05-10 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Active antenna
US5291159A (en) 1992-07-20 1994-03-01 Westinghouse Electric Corp. Acoustic resonator filter with electrically variable center frequency and bandwidth
US5491604A (en) 1992-12-11 1996-02-13 The Regents Of The University Of California Q-controlled microresonators and tunable electronic filters using such resonators
US5550520A (en) * 1995-04-11 1996-08-27 Trw Inc. Monolithic HBT active tuneable band-pass filter
US5854593A (en) 1996-07-26 1998-12-29 Prince Corporation Fast scan trainable transmitter
US5917387A (en) 1996-09-27 1999-06-29 Lucent Technologies Inc. Filter having tunable center frequency and/or tunable bandwidth
US6253092B1 (en) * 1997-11-25 2001-06-26 Uniden Financial, Inc. Closed loop transmitter with DAC sensitivity adjusted to detector nonlinearity
CA2224261A1 (fr) 1997-12-09 1999-06-09 Philsar Electronics Inc. Amplificateur a faible bruit de phase, a facteur q eleve et a gain eleve dans un circuit integre
US6347237B1 (en) 1999-03-16 2002-02-12 Superconductor Technologies, Inc. High temperature superconductor tunable filter
US6356143B2 (en) 1999-11-01 2002-03-12 Intreon Corporation Method and apparatus for filtering radio frequency signals
WO2001089081A2 (fr) 2000-05-16 2001-11-22 Chandler Stephen Anthony Gerar Circuits d'amplificateur a reaction de frequence radio
US6452465B1 (en) 2000-06-27 2002-09-17 M-Squared Filters, Llc High quality-factor tunable resonator
US7174147B2 (en) 2001-04-11 2007-02-06 Kyocera Wireless Corp. Bandpass filter with tunable resonator
EP1251635A1 (fr) 2001-04-20 2002-10-23 Semiconductor Ideas to The Market (ItoM) BV Amplificateur à résonance accordable
JP3880329B2 (ja) 2001-04-20 2007-02-14 株式会社日立国際電気 ループゲイン制御方法及び電力増幅回路
US6771147B2 (en) 2001-12-17 2004-08-03 Remec, Inc. 1-100 GHz microstrip filter
US6954774B1 (en) 2001-12-20 2005-10-11 Rockwell Collins Bandpass filter with ability to tune a pass frequency, passband gain and filter Q
DE10325396A1 (de) 2003-05-28 2004-12-23 Atmel Germany Gmbh Schaltungsanordnung und Verfahren zur Phasenmodulation für rückstreubasierte Transponder
GB2403086B (en) 2003-06-17 2005-07-20 Motorola Inc Cartesian loop transmitter and method of adjusting an output level of such transmitter
FR2864727B1 (fr) 2003-12-29 2007-05-11 St Microelectronics Sa Circuit electronique comportant un resonateur destine a etre integre dans un produit semi-conducteur
DE102004028068A1 (de) * 2004-06-09 2005-12-29 Epcos Ag Oszillator
US7522016B2 (en) 2004-09-15 2009-04-21 Qualcomm, Incorporated Tunable surface acoustic wave resonators
US7433668B2 (en) 2004-12-23 2008-10-07 Lucent Technologies Inc. Controlling Q-factor of filters
EP1675263B1 (fr) * 2004-12-23 2009-10-07 Lucent Technologies Inc. Réglage du facteur qualité (Q) d'un filtre
EP1839375B1 (fr) 2005-01-20 2014-06-04 Massachusetts Institute of Technology Procedés et appareil de verrouillage de mode
JP4922677B2 (ja) 2005-07-01 2012-04-25 パナソニック株式会社 無線通信装置
US7400203B2 (en) 2006-08-03 2008-07-15 Broadcom Corporation Circuit with Q-enhancement cell having feedback loop
KR100921383B1 (ko) 2006-09-08 2009-10-14 가부시키가이샤 엔.티.티.도코모 가변 공진기, 대역폭 가변 필터, 전기회로 장치
TWI326156B (en) * 2007-01-04 2010-06-11 Mstar Semiconductor Inc Method for tuning tunable filter
JP4724135B2 (ja) 2007-02-22 2011-07-13 株式会社エヌ・ティ・ティ・ドコモ 可変共振器、可変フィルタ、電気回路装置
RU2340079C1 (ru) * 2007-02-26 2008-11-27 Федеральное государственное унитарное предприятие Омский научно-исследовательский институт приборостроения Активный полосовой пьезоэлектрический фильтр
JP2008301182A (ja) * 2007-05-31 2008-12-11 Fujitsu Microelectronics Ltd フィルタ回路および半導体装置
CN101689692B (zh) 2007-06-27 2013-11-06 超导技术公司 低损耗可调射频滤波器
EP2160850B1 (fr) 2007-06-29 2010-12-22 Thomson Licensing Répéteur pour signaux radiofréquence et pour signaux de télévision numérique en particulier
GB2453099A (en) * 2007-07-19 2009-04-01 Univ Sussex Sensor system with tunable narrow band filter.
FR2920927B1 (fr) 2007-09-11 2011-05-06 Commissariat Energie Atomique Procede d'adaptation automatique d'impedance de circuit radiofrequence et chaine d'emission ou reception a adaptation automatique
US7917117B2 (en) 2008-01-28 2011-03-29 University Of Washington Auto-tuning amplifier
US7884680B2 (en) 2008-06-30 2011-02-08 Infineon Technologies Ag Dynamically adjustable Q-factors
WO2010040119A1 (fr) 2008-10-03 2010-04-08 Purdue Research Foundation Filtre à cavité réglable à mode évanescent
US7994870B2 (en) 2008-10-20 2011-08-09 Qualcomm, Incorporated Tunable filter with gain control circuit
FR2939581B1 (fr) * 2008-12-09 2010-11-26 Commissariat Energie Atomique Reseau de resonateurs couples, filtre passe-bande et oscillateur.
US8166084B2 (en) * 2009-03-27 2012-04-24 Intersil Americas Inc. Calibration of adjustable filters
US8362853B2 (en) 2009-06-19 2013-01-29 Qualcomm Incorporated Tunable MEMS resonators
US8538367B2 (en) * 2009-06-29 2013-09-17 Qualcomm Incorporated Buffer circuit with integrated loss canceling
US9166564B2 (en) 2010-02-04 2015-10-20 Hittite Microwave Corporation Wideband analog bandpass filter
JP2013520135A (ja) 2010-02-16 2013-05-30 スカイ ホールディングス カンパニー，エルエルシー スペクトルフィルタリングシステム
US8724731B2 (en) 2010-02-26 2014-05-13 Intersil Americas Inc. Methods and systems for noise and interference cancellation
GB2478585A (en) * 2010-03-11 2011-09-14 Stephen Anthony Gerard Chandler An RF amplifier linearised by RF feedback, and having a loop filter resonator of enhanced Q
US8427243B2 (en) * 2011-02-17 2013-04-23 Mediatek Inc. Signal generating circuit and signal generating method
CN102098018A (zh) 2011-03-10 2011-06-15 江苏苏美达机电有限公司 一种可调带通滤波器系统
US8767871B2 (en) 2011-06-08 2014-07-01 Broadcom Corporation Antenna tuning using the ratio of complex forward and reflected signals
US9407239B2 (en) 2011-07-06 2016-08-02 Hrl Laboratories, Llc Wide bandwidth automatic tuning circuit
GB2494652A (en) 2011-09-14 2013-03-20 Stephen Anthony Gerard Chandler A transmitter amplifier with linearising RF feedback and automatic control of resonator Q, resonator frequency, loop phase, and loop gain
US9236846B2 (en) 2011-12-06 2016-01-12 Futurewei Technologies, Inc. Tunable bandpass filter device and method
CN103248336B (zh) * 2012-02-09 2016-04-06 联发科技股份有限公司 滤波器
US8941441B2 (en) 2013-03-15 2015-01-27 Innophase Inc. LNA with linearized gain over extended dynamic range
US8766712B2 (en) 2012-05-04 2014-07-01 Analog Devices, Inc. Quality factor tuning for LC circuits
US9774311B2 (en) * 2013-03-15 2017-09-26 Qorvo Us, Inc. Filtering characteristic adjustments of weakly coupled tunable RF filters
CN203574616U (zh) * 2013-11-22 2014-04-30 宁波杉工结构监测与控制工程中心有限公司 一种截止频率和增益可调的多通道低通滤波器
WO2015176041A1 (fr) 2014-05-15 2015-11-19 The Regents Of The University Of California Système résonateur actif avec facteur de qualité, fréquence et impédance accordables
US9813033B2 (en) 2014-09-05 2017-11-07 Innophase Inc. System and method for inductor isolation
US9735752B2 (en) 2014-12-03 2017-08-15 Tdk Corporation Apparatus and methods for tunable filters
CN104538714B (zh) 2014-12-25 2017-04-26 深圳顺络电子股份有限公司 一种中心频率可调的带通滤波器
US10050604B2 (en) 2015-11-23 2018-08-14 Aniotek Limited Variable filter

Also Published As

Publication number Publication date
US10879875B2 (en) 2020-12-29
CN109314505B (zh) 2022-08-05
CN109314505A (zh) 2019-02-05
EP4243284A3 (fr) 2023-10-11
RU2020121155A3 (fr) 2020-10-14
RU2018122759A3 (fr) 2020-04-28
MY192162A (en) 2022-08-03
US20180323770A1 (en) 2018-11-08
RU2018122759A (ru) 2019-12-26
EP3381126A1 (fr) 2018-10-03
RU2738030C2 (ru) 2020-12-07
JP2018536368A (ja) 2018-12-06
SG11201804302XA (en) 2018-06-28
WO2017089803A1 (fr) 2017-06-01
US10050604B2 (en) 2018-08-14
JP6770083B2 (ja) 2020-10-14
IL259540B1 (en) 2023-10-01
IL259540A (en) 2018-07-31
IL259540B2 (en) 2024-02-01
EP4243284A2 (fr) 2023-09-13
KR20180087341A (ko) 2018-08-01
RU2020121155A (ru) 2020-07-08
US20170149411A1 (en) 2017-05-25
EP3381126B1 (fr) 2023-07-05

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