EA200200529A1 - Микрополосковые перестраиваемые фильтры, перестраиваемые диэлектрическими параметрическими диодами - Google Patents

Микрополосковые перестраиваемые фильтры, перестраиваемые диэлектрическими параметрическими диодами

Info

Publication number
EA200200529A1
EA200200529A1 EA200200529A EA200200529A EA200200529A1 EA 200200529 A1 EA200200529 A1 EA 200200529A1 EA 200200529 A EA200200529 A EA 200200529A EA 200200529 A EA200200529 A EA 200200529A EA 200200529 A1 EA200200529 A1 EA 200200529A1
Authority
EA
Eurasian Patent Office
Prior art keywords
microstrip line
substrate
rejectable
microstrip
filter
Prior art date
Application number
EA200200529A
Other languages
English (en)
Inventor
Йонгфей Зу
Луиз Сенгупта
Ю Ронг
Original Assignee
Паратек Майкровэйв, Инк.
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 Паратек Майкровэйв, Инк. filed Critical Паратек Майкровэйв, Инк.
Publication of EA200200529A1 publication Critical patent/EA200200529A1/ru

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00Auxiliary devices
    • H01P1/20Frequency-selective devices, e.g. filters
    • H01P1/201Filters for transverse electromagnetic waves
    • H01P1/203Strip line filters
    • H01P1/20327Electromagnetic interstage coupling
    • H01P1/20336Comb or interdigital filters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

Электронный фильтр включает в себя подложку, заземляющий проводник, ввод, вывод, первую микрополосковую линию, расположенную на подложке и электрически соединенную с вводом и выводом, и первый перестраиваемый диэлектрический параметрический диод, электрически подсоединенный между микрополосковой линией и заземляющим проводником. Ввод предпочтительно включает в себя вторую микрополосковую линию, расположенную на подложке и включающую часть, проходящую параллельно первой микрополосковой линии. Вывод предпочтительно включает в себя третью микрополосковую линию, расположенную на подложке и включающую часть, проходящую параллельно первой микрополосковой линии. Первая микрополосковая линия включает в себя первый конец и второй конец, причем первый конец разомкнут, и между вторым концом и заземляющим проводником подсоединен параметрический диод. Фильтр также включает в себя цепь напряжения смещения, включающую в себя линию с высоким полным сопротивлением, радиальный шлейф, отступающий от линии с высоким полным сопротивлением, и соединительный вывод, соединенный с линией с высоким полным сопротивлением для подключения к источнику постоянного тока. В многополюсном варианте выполнения фильтр также включает в себя дополнительные микрополосковые линии, расположенные на подложке фильтра параллельно первой микрополосковой линии, и дополнительные перестраиваемые диэлектрические параметрические диоды, электрически подсоединенные между дополнительными микрополосковыми линиями и заземляющим проводником.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA200200529A 1999-11-04 2000-11-02 Микрополосковые перестраиваемые фильтры, перестраиваемые диэлектрическими параметрическими диодами EA200200529A1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16349899P 1999-11-04 1999-11-04
PCT/US2000/030269 WO2001033660A1 (en) 1999-11-04 2000-11-02 Microstrip tunable filters tuned by dielectric varactors

Publications (1)

Publication Number Publication Date
EA200200529A1 true EA200200529A1 (ru) 2002-10-31

Family

ID=22590270

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200200529A EA200200529A1 (ru) 1999-11-04 2000-11-02 Микрополосковые перестраиваемые фильтры, перестраиваемые диэлектрическими параметрическими диодами

Country Status (5)

Country Link
US (1) US6525630B1 (ru)
EP (1) EP1236240A1 (ru)
AU (1) AU2424201A (ru)
EA (1) EA200200529A1 (ru)
WO (1) WO2001033660A1 (ru)

Families Citing this family (138)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6646522B1 (en) * 1999-08-24 2003-11-11 Paratek Microwave, Inc. Voltage tunable coplanar waveguide phase shifters
US6590468B2 (en) 2000-07-20 2003-07-08 Paratek Microwave, Inc. Tunable microwave devices with auto-adjusting matching circuit
US7865154B2 (en) * 2000-07-20 2011-01-04 Paratek Microwave, Inc. Tunable microwave devices with auto-adjusting matching circuit
US8064188B2 (en) 2000-07-20 2011-11-22 Paratek Microwave, Inc. Optimized thin film capacitors
US8744384B2 (en) 2000-07-20 2014-06-03 Blackberry Limited Tunable microwave devices with auto-adjusting matching circuit
US7394430B2 (en) * 2001-04-11 2008-07-01 Kyocera Wireless Corp. Wireless device reconfigurable radiation desensitivity bracket systems and methods
US7746292B2 (en) * 2001-04-11 2010-06-29 Kyocera Wireless Corp. Reconfigurable radiation desensitivity bracket systems and methods
US7174147B2 (en) * 2001-04-11 2007-02-06 Kyocera Wireless Corp. Bandpass filter with tunable resonator
US6937195B2 (en) * 2001-04-11 2005-08-30 Kyocera Wireless Corp. Inverted-F ferroelectric antenna
US6690251B2 (en) * 2001-04-11 2004-02-10 Kyocera Wireless Corporation Tunable ferro-electric filter
US7154440B2 (en) * 2001-04-11 2006-12-26 Kyocera Wireless Corp. Phase array antenna using a constant-gain phase shifter
US7221243B2 (en) * 2001-04-11 2007-05-22 Kyocera Wireless Corp. Apparatus and method for combining electrical signals
US6617062B2 (en) * 2001-04-13 2003-09-09 Paratek Microwave, Inc. Strain-relieved tunable dielectric thin films
JP3825998B2 (ja) * 2001-08-20 2006-09-27 シャープ株式会社 マイクロ波ストリップ線路フィルタおよびこれを用いた高周波送信機
US6801160B2 (en) * 2001-08-27 2004-10-05 Herbert Jefferson Henderson Dynamic multi-beam antenna using dielectrically tunable phase shifters
EP1428289A1 (en) * 2001-09-20 2004-06-16 Paratek Microwave, Inc. Tunable filters having variable bandwidth and variable delay
US20050200422A1 (en) * 2001-09-20 2005-09-15 Khosro Shamsaifar Tunable filters having variable bandwidth and variable delay
US7034636B2 (en) 2001-09-20 2006-04-25 Paratek Microwave Incorporated Tunable filters having variable bandwidth and variable delay
US7236068B2 (en) * 2002-01-17 2007-06-26 Paratek Microwave, Inc. Electronically tunable combine filter with asymmetric response
US7180467B2 (en) * 2002-02-12 2007-02-20 Kyocera Wireless Corp. System and method for dual-band antenna matching
US7184727B2 (en) * 2002-02-12 2007-02-27 Kyocera Wireless Corp. Full-duplex antenna system and method
US7176845B2 (en) * 2002-02-12 2007-02-13 Kyocera Wireless Corp. System and method for impedance matching an antenna to sub-bands in a communication band
US20050159187A1 (en) * 2002-03-18 2005-07-21 Greg Mendolia Antenna system and method
US20030176179A1 (en) * 2002-03-18 2003-09-18 Ken Hersey Wireless local area network and antenna used therein
US20050113138A1 (en) * 2002-03-18 2005-05-26 Greg Mendolia RF ID tag reader utlizing a scanning antenna system and method
US7187288B2 (en) * 2002-03-18 2007-03-06 Paratek Microwave, Inc. RFID tag reading system and method
US7183922B2 (en) * 2002-03-18 2007-02-27 Paratek Microwave, Inc. Tracking apparatus, system and method
US7496329B2 (en) * 2002-03-18 2009-02-24 Paratek Microwave, Inc. RF ID tag reader utilizing a scanning antenna system and method
US6859115B1 (en) * 2002-03-28 2005-02-22 Advanced Micro Devices, Inc. Stub transformer for power supply impedance reduction
US6987493B2 (en) * 2002-04-15 2006-01-17 Paratek Microwave, Inc. Electronically steerable passive array antenna
US7107033B2 (en) * 2002-04-17 2006-09-12 Paratek Microwave, Inc. Smart radio incorporating Parascan® varactors embodied within an intelligent adaptive RF front end
KR100450677B1 (ko) * 2002-06-04 2004-10-01 삼성전자주식회사 고주파 잡음을 감소시키는 데이터 버스 구조를 가지는반도체 메모리 장치
US7429495B2 (en) * 2002-08-07 2008-09-30 Chang-Feng Wan System and method of fabricating micro cavities
US6864843B2 (en) * 2002-08-15 2005-03-08 Paratek Microwave, Inc. Conformal frequency-agile tunable patch antenna
US7111520B2 (en) * 2002-08-26 2006-09-26 Gilbarco Inc. Increased sensitivity for liquid meter
US6854342B2 (en) 2002-08-26 2005-02-15 Gilbarco, Inc. Increased sensitivity for turbine flow meter
US6960546B2 (en) 2002-09-27 2005-11-01 Paratek Microwave, Inc. Dielectric composite materials including an electronically tunable dielectric phase and a calcium and oxygen-containing compound phase
US20050116797A1 (en) * 2003-02-05 2005-06-02 Khosro Shamsaifar Electronically tunable block filter
US20040227592A1 (en) * 2003-02-05 2004-11-18 Chiu Luna H. Method of applying patterned metallization to block filter resonators
WO2004073099A2 (en) * 2003-02-05 2004-08-26 Mohammed Mahbubur Rahman Electronically tunable comb-ring type rf filter
US20040185795A1 (en) * 2003-02-05 2004-09-23 Khosro Shamsaifar Electronically tunable RF Front End Module
US7369828B2 (en) * 2003-02-05 2008-05-06 Paratek Microwave, Inc. Electronically tunable quad-band antennas for handset applications
US20040183626A1 (en) * 2003-02-05 2004-09-23 Qinghua Kang Electronically tunable block filter with tunable transmission zeros
US20040178867A1 (en) * 2003-02-05 2004-09-16 Rahman Mohammed Mahbubur LTCC based electronically tunable multilayer microstrip-stripline combline filter
US7048992B2 (en) * 2003-02-05 2006-05-23 Paratek Microwave, Inc. Fabrication of Parascan tunable dielectric chips
US20040224649A1 (en) * 2003-02-05 2004-11-11 Khosro Shamsaifar Electronically tunable power amplifier tuner
US6949982B2 (en) * 2003-03-06 2005-09-27 Paratek Microwave, Inc. Voltage controlled oscillators incorporating parascan R varactors
US6967540B2 (en) * 2003-03-06 2005-11-22 Paratek Microwave, Inc. Synthesizers incorporating parascan TM varactors
US8204438B2 (en) * 2003-03-14 2012-06-19 Paratek Microwave, Inc. RF ID tag reader utilizing a scanning antenna system and method
US20040229025A1 (en) * 2003-04-11 2004-11-18 Chen Zhang Voltage tunable photodefinable dielectric and method of manufacture therefore
US20040232523A1 (en) * 2003-04-30 2004-11-25 Khosro Shamsaifar Electronically tunable RF chip packages
US7042316B2 (en) * 2003-05-01 2006-05-09 Paratek Microwave, Inc. Waveguide dielectric resonator electrically tunable filter
WO2004107499A2 (en) * 2003-05-22 2004-12-09 Paratek Microwave Inc. Wireless local area network antenna system and method of use therefore
US7720443B2 (en) 2003-06-02 2010-05-18 Kyocera Wireless Corp. System and method for filtering time division multiple access telephone communications
US20060035023A1 (en) * 2003-08-07 2006-02-16 Wontae Chang Method for making a strain-relieved tunable dielectric thin film
WO2005015679A2 (en) * 2003-08-08 2005-02-17 Paratek Microwave Inc. Loaded line phase shifter
US7109926B2 (en) * 2003-08-08 2006-09-19 Paratek Microwave, Inc. Stacked patch antenna
US6992638B2 (en) * 2003-09-27 2006-01-31 Paratek Microwave, Inc. High gain, steerable multiple beam antenna system
US7030463B1 (en) 2003-10-01 2006-04-18 University Of Dayton Tuneable electromagnetic bandgap structures based on high resistivity silicon substrates
US20050164647A1 (en) * 2004-01-28 2005-07-28 Khosro Shamsaifar Apparatus and method capable of utilizing a tunable antenna-duplexer combination
US20050164744A1 (en) * 2004-01-28 2005-07-28 Du Toit Nicolaas D. Apparatus and method operable in a wireless local area network incorporating tunable dielectric capacitors embodied within an inteligent adaptive antenna
US7268643B2 (en) 2004-01-28 2007-09-11 Paratek Microwave, Inc. Apparatus, system and method capable of radio frequency switching using tunable dielectric capacitors
US7151411B2 (en) * 2004-03-17 2006-12-19 Paratek Microwave, Inc. Amplifier system and method
US20050206482A1 (en) * 2004-03-17 2005-09-22 Dutoit Nicolaas Electronically tunable switched-resonator filter bank
US20060237750A1 (en) * 2004-06-21 2006-10-26 James Oakes Field effect transistor structures
US20060006962A1 (en) * 2004-07-08 2006-01-12 Du Toit Cornelis F Phase shifters and method of manufacture therefore
US20060009185A1 (en) * 2004-07-08 2006-01-12 Khosro Shamsaifar Method and apparatus capable of interference cancellation
US20060006961A1 (en) * 2004-07-08 2006-01-12 Sengupta L Tunable dielectric phase shifters capable of operating in a digital-analog regime
US20060006966A1 (en) * 2004-07-08 2006-01-12 Qinghua Kang Electronically tunable ridged waveguide cavity filter and method of manufacture therefore
US7248845B2 (en) * 2004-07-09 2007-07-24 Kyocera Wireless Corp. Variable-loss transmitter and method of operation
US7519340B2 (en) * 2004-07-30 2009-04-14 Paratek Microwave, Inc. Method and apparatus capable of mitigating third order inter-modulation distortion in electronic circuits
US7379711B2 (en) * 2004-07-30 2008-05-27 Paratek Microwave, Inc. Method and apparatus capable of mitigating third order inter-modulation distortion in electronic circuits
US20060033593A1 (en) * 2004-08-13 2006-02-16 Qinghua Kang Method and apparatus with improved varactor quality factor
US20060044204A1 (en) * 2004-08-14 2006-03-02 Jeffrey Kruth Phased array antenna with steerable null
US7557055B2 (en) * 2004-09-20 2009-07-07 Paratek Microwave, Inc. Tunable low loss material composition
US20060065916A1 (en) * 2004-09-29 2006-03-30 Xubai Zhang Varactors and methods of manufacture and use
US7397329B2 (en) * 2004-11-02 2008-07-08 Du Toit Nicolaas D Compact tunable filter and method of operation and manufacture therefore
US20060267174A1 (en) * 2005-02-09 2006-11-30 William Macropoulos Apparatus and method using stackable substrates
US7471146B2 (en) * 2005-02-15 2008-12-30 Paratek Microwave, Inc. Optimized circuits for three dimensional packaging and methods of manufacture therefore
US20070007854A1 (en) * 2005-07-09 2007-01-11 James Oakes Ripple free tunable capacitor and method of operation and manufacture therefore
US20070007850A1 (en) * 2005-07-09 2007-01-11 Toit Nicolaas D Apparatus and method capable of a high fundamental acoustic resonance frequency and a wide resonance-free frequency range
US20070007853A1 (en) 2005-07-09 2007-01-11 Toit Nicolaas D Apparatus and method capable of a high fundamental acoustic resonance frequency and a wide resonance-free frequency range
US9406444B2 (en) 2005-11-14 2016-08-02 Blackberry Limited Thin film capacitors
US7548762B2 (en) * 2005-11-30 2009-06-16 Kyocera Corporation Method for tuning a GPS antenna matching network
US8325097B2 (en) * 2006-01-14 2012-12-04 Research In Motion Rf, Inc. Adaptively tunable antennas and method of operation therefore
US7711337B2 (en) 2006-01-14 2010-05-04 Paratek Microwave, Inc. Adaptive impedance matching module (AIMM) control architectures
US8125399B2 (en) * 2006-01-14 2012-02-28 Paratek Microwave, Inc. Adaptively tunable antennas incorporating an external probe to monitor radiated power
US20070279159A1 (en) * 2006-06-02 2007-12-06 Heinz Georg Bachmann Techniques to reduce circuit non-linear distortion
US7714676B2 (en) 2006-11-08 2010-05-11 Paratek Microwave, Inc. Adaptive impedance matching apparatus, system and method
US7535312B2 (en) * 2006-11-08 2009-05-19 Paratek Microwave, Inc. Adaptive impedance matching apparatus, system and method with improved dynamic range
US8299867B2 (en) * 2006-11-08 2012-10-30 Research In Motion Rf, Inc. Adaptive impedance matching module
US7813777B2 (en) * 2006-12-12 2010-10-12 Paratek Microwave, Inc. Antenna tuner with zero volts impedance fold back
US7936553B2 (en) * 2007-03-22 2011-05-03 Paratek Microwave, Inc. Capacitors adapted for acoustic resonance cancellation
US8467169B2 (en) 2007-03-22 2013-06-18 Research In Motion Rf, Inc. Capacitors adapted for acoustic resonance cancellation
US7917104B2 (en) 2007-04-23 2011-03-29 Paratek Microwave, Inc. Techniques for improved adaptive impedance matching
US8213886B2 (en) 2007-05-07 2012-07-03 Paratek Microwave, Inc. Hybrid techniques for antenna retuning utilizing transmit and receive power information
US7991363B2 (en) 2007-11-14 2011-08-02 Paratek Microwave, Inc. Tuning matching circuits for transmitter and receiver bands as a function of transmitter metrics
US7528686B1 (en) 2007-11-21 2009-05-05 Rockwell Collins, Inc. Tunable filter utilizing a conductive grid
US8112852B2 (en) * 2008-05-14 2012-02-14 Paratek Microwave, Inc. Radio frequency tunable capacitors and method of manufacturing using a sacrificial carrier substrate
US7922975B2 (en) * 2008-07-14 2011-04-12 University Of Dayton Resonant sensor capable of wireless interrogation
US8159314B1 (en) * 2008-08-04 2012-04-17 Rockwell Collins, Inc. Actively tuned filter
US8072285B2 (en) 2008-09-24 2011-12-06 Paratek Microwave, Inc. Methods for tuning an adaptive impedance matching network with a look-up table
US8067858B2 (en) * 2008-10-14 2011-11-29 Paratek Microwave, Inc. Low-distortion voltage variable capacitor assemblies
US20100096678A1 (en) * 2008-10-20 2010-04-22 University Of Dayton Nanostructured barium strontium titanate (bst) thin-film varactors on sapphire
US8194387B2 (en) 2009-03-20 2012-06-05 Paratek Microwave, Inc. Electrostrictive resonance suppression for tunable capacitors
US20100295634A1 (en) * 2009-05-20 2010-11-25 Tamrat Akale Tunable bandpass filter
US8472888B2 (en) * 2009-08-25 2013-06-25 Research In Motion Rf, Inc. Method and apparatus for calibrating a communication device
US9026062B2 (en) 2009-10-10 2015-05-05 Blackberry Limited Method and apparatus for managing operations of a communication device
US8973059B2 (en) * 2009-12-09 2015-03-03 Thomson Licensing Method for protecting satellite reception from strong terrestrial signals
US8803631B2 (en) 2010-03-22 2014-08-12 Blackberry Limited Method and apparatus for adapting a variable impedance network
JP5901612B2 (ja) 2010-04-20 2016-04-13 ブラックベリー リミテッド 通信デバイスにおける干渉を管理するための方法および装置
EP2387095B1 (en) 2010-05-12 2016-12-14 Hittite Microwave LLC Combline filter
US9379454B2 (en) 2010-11-08 2016-06-28 Blackberry Limited Method and apparatus for tuning antennas in a communication device
FR2971651A1 (fr) * 2011-02-14 2012-08-17 Rockwell Collins France Filtre passe-bande a frequence variable
US8712340B2 (en) 2011-02-18 2014-04-29 Blackberry Limited Method and apparatus for radio antenna frequency tuning
US8655286B2 (en) 2011-02-25 2014-02-18 Blackberry Limited Method and apparatus for tuning a communication device
US8626083B2 (en) 2011-05-16 2014-01-07 Blackberry Limited Method and apparatus for tuning a communication device
US8594584B2 (en) 2011-05-16 2013-11-26 Blackberry Limited Method and apparatus for tuning a communication device
WO2012164273A1 (en) * 2011-06-01 2012-12-06 Filtronic Wireless Ltd A microwave filter
US9769826B2 (en) 2011-08-05 2017-09-19 Blackberry Limited Method and apparatus for band tuning in a communication device
US8948889B2 (en) 2012-06-01 2015-02-03 Blackberry Limited Methods and apparatus for tuning circuit components of a communication device
US9000866B2 (en) 2012-06-26 2015-04-07 University Of Dayton Varactor shunt switches with parallel capacitor architecture
US9853363B2 (en) 2012-07-06 2017-12-26 Blackberry Limited Methods and apparatus to control mutual coupling between antennas
US9246223B2 (en) 2012-07-17 2016-01-26 Blackberry Limited Antenna tuning for multiband operation
US9413066B2 (en) 2012-07-19 2016-08-09 Blackberry Limited Method and apparatus for beam forming and antenna tuning in a communication device
US9350405B2 (en) 2012-07-19 2016-05-24 Blackberry Limited Method and apparatus for antenna tuning and power consumption management in a communication device
US9123983B1 (en) 2012-07-20 2015-09-01 Hittite Microwave Corporation Tunable bandpass filter integrated circuit
US9362891B2 (en) 2012-07-26 2016-06-07 Blackberry Limited Methods and apparatus for tuning a communication device
US9374113B2 (en) 2012-12-21 2016-06-21 Blackberry Limited Method and apparatus for adjusting the timing of radio antenna tuning
US10404295B2 (en) 2012-12-21 2019-09-03 Blackberry Limited Method and apparatus for adjusting the timing of radio antenna tuning
US20150125342A1 (en) * 2013-11-06 2015-05-07 Kimberly-Clark Worldwide, Inc. Controlled Retention and Removal of Biomaterials and Microbes
US9438319B2 (en) 2014-12-16 2016-09-06 Blackberry Limited Method and apparatus for antenna selection
CN104934665A (zh) * 2015-07-13 2015-09-23 南京理工大学 一种超高频波段选择性微波滤波器组
CN104953208A (zh) * 2015-07-13 2015-09-30 南京理工大学 一种Ku波段双分布滤波器
US10199710B2 (en) * 2016-09-01 2019-02-05 Wafer Llc Variable dielectric constant-based devices
WO2018106485A1 (en) * 2016-12-07 2018-06-14 Wafer Llc Low loss electrical transmission mechanism and antenna using same
CN113381143B (zh) * 2021-06-03 2022-05-20 南京工程学院 一种微带低通滤波器及传输零点确定、频率设置方法
CN114759326B (zh) * 2022-03-30 2022-12-23 中国人民解放军国防科技大学 一种微带梳状线型限幅滤波器

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1105574A (en) * 1978-08-31 1981-07-21 William D. Cornish Broadband microwave frequency divider for division by numbers greater than two
FR2540294B1 (fr) 1983-01-31 1985-10-04 Thomson Csf Filtre hyperfrequence a resonateurs lineaires
US4551696A (en) 1983-12-16 1985-11-05 Motorola, Inc. Narrow bandwidth microstrip filter
JPS60220602A (ja) 1984-04-18 1985-11-05 Hitachi Ltd 帯域分離フイルタ
JPS60223304A (ja) 1984-04-20 1985-11-07 Hitachi Ltd 帯域分離フイルタ
US4757287A (en) 1987-10-20 1988-07-12 Gte Service Corporation Voltage tunable half wavelength microstrip filter
US4835499A (en) 1988-03-09 1989-05-30 Motorola, Inc. Voltage tunable bandpass filter
US4963843A (en) 1988-10-31 1990-10-16 Motorola, Inc. Stripline filter with combline resonators
JPH02146801A (ja) * 1988-11-28 1990-06-06 Fujitsu Ltd 中心周波数可変帯域通過フィルタ
US5406233A (en) 1991-02-08 1995-04-11 Massachusetts Institute Of Technology Tunable stripline devices
JP2502824B2 (ja) 1991-03-13 1996-05-29 松下電器産業株式会社 平面型誘電体フィルタ
US5138288A (en) 1991-03-27 1992-08-11 Motorola, Inc. Micro strip filter having a varactor coupled between two microstrip line resonators
JP3160929B2 (ja) 1991-04-24 2001-04-25 ソニー株式会社 高周波処理装置
JPH0529818A (ja) 1991-07-19 1993-02-05 Matsushita Electric Ind Co Ltd Temモード共振器
JPH06104608A (ja) 1992-09-24 1994-04-15 Matsushita Electric Ind Co Ltd フィルタ
US5392011A (en) 1992-11-20 1995-02-21 Motorola, Inc. Tunable filter having capacitively coupled tuning elements
EP0600118B1 (de) 1992-12-01 1998-05-27 Siemens Aktiengesellschaft Spannungsgesteuerter Mikrowellen-Oszillator
US5472935A (en) 1992-12-01 1995-12-05 Yandrofski; Robert M. Tuneable microwave devices incorporating high temperature superconducting and ferroelectric films
EP0672308A4 (en) 1992-12-01 1995-12-13 Superconductor Core Technologi TUNABLE MICROWAVE DEVICES WITH HIGH-TEMPERATURE SUPRAL-CONDUCTING AND FERROELECTRIC LAYERS.
US5355104A (en) * 1993-01-29 1994-10-11 Hughes Aircraft Company Phase shift device using voltage-controllable dielectrics
FI93504C (fi) 1993-03-03 1995-04-10 Lk Products Oy Siirtojohtosuodatin, jossa on säädettävät siirtonollat
US5496795A (en) 1994-08-16 1996-03-05 Das; Satyendranath High TC superconducting monolithic ferroelectric junable b and pass filter
US5496796A (en) 1994-09-20 1996-03-05 Das; Satyendranath High Tc superconducting band reject ferroelectric filter (TFF)
US5846893A (en) * 1995-12-08 1998-12-08 Sengupta; Somnath Thin film ferroelectric composites and method of making
US5640042A (en) 1995-12-14 1997-06-17 The United States Of America As Represented By The Secretary Of The Army Thin film ferroelectric varactor
US5917387A (en) 1996-09-27 1999-06-29 Lucent Technologies Inc. Filter having tunable center frequency and/or tunable bandwidth
WO1998020606A2 (en) 1996-10-25 1998-05-14 Superconducting Core Technologies, Inc. Tunable dielectric flip chip varactors
US5908811A (en) 1997-03-03 1999-06-01 Das; Satyendranath High Tc superconducting ferroelectric tunable filters
US5877123A (en) 1997-04-17 1999-03-02 Das; Satyendranath High TC superconducting ferroelectric tunable filters
JPH1146102A (ja) 1997-05-30 1999-02-16 Murata Mfg Co Ltd 誘電体フィルタ、誘電体デュプレクサ及び通信機装置
US6054908A (en) 1997-12-12 2000-04-25 Trw Inc. Variable bandwidth filter
US6071555A (en) * 1998-11-05 2000-06-06 The United States Of America As Represented By The Secretary Of The Army Ferroelectric thin film composites made by metalorganic decomposition

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EP1236240A1 (en) 2002-09-04
WO2001033660A1 (en) 2001-05-10
AU2424201A (en) 2001-05-14
US6525630B1 (en) 2003-02-25

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