JP2002532889A - 誘電バラクタを備えた電気的チューナブルフィルタ - Google Patents
誘電バラクタを備えた電気的チューナブルフィルタInfo
- Publication number
- JP2002532889A JP2002532889A JP2000587403A JP2000587403A JP2002532889A JP 2002532889 A JP2002532889 A JP 2002532889A JP 2000587403 A JP2000587403 A JP 2000587403A JP 2000587403 A JP2000587403 A JP 2000587403A JP 2002532889 A JP2002532889 A JP 2002532889A
- Authority
- JP
- Japan
- Prior art keywords
- tunable
- filter
- varactor
- dielectric
- tunable filter
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 45
- 230000000903 blocking effect Effects 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 18
- 239000010409 thin film Substances 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000010408 film Substances 0.000 claims description 3
- -1 LaAlO 3 Inorganic materials 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052594 sapphire Inorganic materials 0.000 claims description 2
- 239000010980 sapphire Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 42
- 229910052454 barium strontium titanate Inorganic materials 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 238000012937 correction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000608 laser ablation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- 229910020068 MgAl Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- WOIHABYNKOEWFG-UHFFFAOYSA-N [Sr].[Ba] Chemical group [Sr].[Ba] WOIHABYNKOEWFG-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
-
- 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
- H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
-
- 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
- H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Filters And Equalizers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11188898P | 1998-12-11 | 1998-12-11 | |
| US60/111,888 | 1998-12-11 | ||
| PCT/US1999/029230 WO2000035042A1 (en) | 1998-12-11 | 1999-12-09 | Electrically tunable filters with dielectric varactors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002532889A true JP2002532889A (ja) | 2002-10-02 |
| JP2002532889A5 JP2002532889A5 (enExample) | 2007-02-08 |
Family
ID=22340979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000587403A Pending JP2002532889A (ja) | 1998-12-11 | 1999-12-09 | 誘電バラクタを備えた電気的チューナブルフィルタ |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US20020186099A1 (enExample) |
| EP (1) | EP1145362B1 (enExample) |
| JP (1) | JP2002532889A (enExample) |
| KR (1) | KR20010080727A (enExample) |
| CN (1) | CN1329762A (enExample) |
| AT (1) | ATE265093T1 (enExample) |
| AU (1) | AU1843400A (enExample) |
| CA (1) | CA2352166A1 (enExample) |
| DE (1) | DE69916660T2 (enExample) |
| EA (1) | EA200100654A1 (enExample) |
| WO (1) | WO2000035042A1 (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7026680B2 (en) | 2003-03-12 | 2006-04-11 | Fujitsu Limited | Thin film capacitive element, method for producing same and electronic device |
| JP2006196704A (ja) * | 2005-01-13 | 2006-07-27 | Kyocera Corp | 可変容量コンデンサ，回路モジュールおよび通信装置 |
| JP2012142805A (ja) * | 2010-12-29 | 2012-07-26 | Kyoto Institute Of Technology | チューナブルフィルタ、無線装置、受信機および送信機 |
Families Citing this family (78)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001281167A1 (en) | 2000-08-07 | 2002-02-18 | Conductus, Inc. | Varactor tuning for a narrow band filter |
| US6683513B2 (en) | 2000-10-26 | 2004-01-27 | Paratek Microwave, Inc. | Electronically tunable RF diplexers tuned by tunable capacitors |
| US6492883B2 (en) * | 2000-11-03 | 2002-12-10 | Paratek Microwave, Inc. | Method of channel frequency allocation for RF and microwave duplexers |
| US6686817B2 (en) | 2000-12-12 | 2004-02-03 | Paratek Microwave, Inc. | Electronic tunable filters with dielectric varactors |
| EP1352444A1 (en) * | 2000-12-12 | 2003-10-15 | Paratek Microwave, Inc. | Electrically tunable notch filters |
| US6724280B2 (en) | 2001-03-27 | 2004-04-20 | Paratek Microwave, Inc. | Tunable RF devices with metallized non-metallic bodies |
| US6690251B2 (en) | 2001-04-11 | 2004-02-10 | Kyocera Wireless Corporation | Tunable ferro-electric filter |
| US7394430B2 (en) | 2001-04-11 | 2008-07-01 | Kyocera Wireless Corp. | Wireless device reconfigurable radiation desensitivity bracket systems and methods |
| US7154440B2 (en) | 2001-04-11 | 2006-12-26 | Kyocera Wireless Corp. | Phase array antenna using a constant-gain phase shifter |
| US7164329B2 (en) | 2001-04-11 | 2007-01-16 | Kyocera Wireless Corp. | Tunable phase shifer with a control signal generator responsive to DC offset in a mixed signal |
| WO2002084310A1 (en) * | 2001-04-11 | 2002-10-24 | Kyocera Wireless Corporation | Low-loss tunable ferro-electric device and method of characterization |
| DE60207546T2 (de) * | 2001-04-11 | 2006-07-27 | Kyocera Wireless Corp., San Diego | Antennenschnittstelleneinheit |
| US7174147B2 (en) | 2001-04-11 | 2007-02-06 | Kyocera Wireless Corp. | Bandpass filter with tunable resonator |
| US7221243B2 (en) | 2001-04-11 | 2007-05-22 | Kyocera Wireless Corp. | Apparatus and method for combining electrical signals |
| US6937195B2 (en) | 2001-04-11 | 2005-08-30 | Kyocera Wireless Corp. | Inverted-F ferroelectric antenna |
| WO2002099923A1 (en) * | 2001-04-17 | 2002-12-12 | Paratek Microwave, Inc. | Hairpin microstrip line electrically tunable filters |
| US6535076B2 (en) * | 2001-05-15 | 2003-03-18 | Silicon Valley Bank | Switched charge voltage driver and method for applying voltage to tunable dielectric devices |
| AU2002356810A1 (en) * | 2001-10-16 | 2003-04-28 | Rfstream Corporation | Monolithic integrated circuit for a television receiver |
| US7071776B2 (en) | 2001-10-22 | 2006-07-04 | Kyocera Wireless Corp. | Systems and methods for controlling output power in a communication device |
| US7236068B2 (en) * | 2002-01-17 | 2007-06-26 | Paratek Microwave, Inc. | Electronically tunable combine filter with asymmetric response |
| 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 |
| US7180467B2 (en) | 2002-02-12 | 2007-02-20 | Kyocera Wireless Corp. | System and method for dual-band antenna matching |
| AU2003243422A1 (en) * | 2002-06-05 | 2003-12-22 | Rfstream Corporation | Quadratic video demodulation with baseband nyquist filter |
| US20040224649A1 (en) * | 2003-02-05 | 2004-11-11 | Khosro Shamsaifar | Electronically tunable power amplifier tuner |
| US6940365B2 (en) | 2003-07-18 | 2005-09-06 | Rfstream Corporation | Methods and apparatus for an improved discrete LC filter |
| CN100413332C (zh) * | 2003-09-19 | 2008-08-20 | 松下电器产业株式会社 | 数字电视接收机用模块以及具有该模块的数字电视接收机 |
| US7719392B2 (en) * | 2003-10-20 | 2010-05-18 | University Of Dayton | Ferroelectric varactors suitable for capacitive shunt switching |
| US20070069264A1 (en) * | 2003-10-20 | 2007-03-29 | Guru Subramanyam | Ferroelectric varactors suitable for capacitive shunt switching and wireless sensing |
| JP4226037B2 (ja) * | 2003-10-20 | 2009-02-18 | ユニバーシティ・オブ・デイトン | 容量型シャント・スイッチに適する強誘電性バラクター |
| US7248845B2 (en) | 2004-07-09 | 2007-07-24 | Kyocera Wireless Corp. | Variable-loss transmitter and method of operation |
| WO2006020542A2 (en) * | 2004-08-13 | 2006-02-23 | Paratek Microwave Inc. | Method and apparatus with improved varactor quality factor |
| US20090132428A1 (en) * | 2004-11-15 | 2009-05-21 | Stephen Jeffrey Wolf | Method for creating and marketing a modifiable debt product |
| US7358795B2 (en) | 2005-03-11 | 2008-04-15 | Rfstream Corporation | MOSFET temperature compensation current source |
| JP2008533840A (ja) * | 2005-03-11 | 2008-08-21 | 株式会社ＲｆＳｔｒｅａｍ | 無線周波誘導容量性フィルタ回路トポロジー |
| US7548762B2 (en) | 2005-11-30 | 2009-06-16 | Kyocera Corporation | Method for tuning a GPS antenna matching network |
| WO2007103537A2 (en) * | 2006-03-08 | 2007-09-13 | Wispry, Inc. | Tunable impedance matching networks and tunable diplexer matching systems |
| US20100248674A1 (en) * | 2006-08-17 | 2010-09-30 | Sige Semiconductor (Europe) Limited | Switchable Mode Filter for Overlaid Signal Extraction in Noise |
| JP2008091777A (ja) * | 2006-10-04 | 2008-04-17 | Sumitomo Electric Ind Ltd | 光トランシーバ |
| WO2008086626A1 (en) * | 2007-01-18 | 2008-07-24 | D-Wave Systems, Inc. | Systems, methods, and apparatus for electrical filters |
| US8441329B2 (en) | 2007-01-18 | 2013-05-14 | D-Wave Systems Inc. | Input/output system and devices for use with superconducting devices |
| US8159312B2 (en) * | 2007-06-27 | 2012-04-17 | Medrelief Inc. | Method and system for signal coupling and direct current blocking |
| US7924114B2 (en) * | 2007-06-27 | 2011-04-12 | Superconductor Technologies, Inc. | Electrical filters with improved intermodulation distortion |
| US20100096678A1 (en) * | 2008-10-20 | 2010-04-22 | University Of Dayton | Nanostructured barium strontium titanate (bst) thin-film varactors on sapphire |
| US9684521B2 (en) | 2010-01-26 | 2017-06-20 | Apple Inc. | Systems having discrete and continuous gesture recognizers |
| JP4845988B2 (ja) * | 2009-03-30 | 2011-12-28 | 株式会社豊田中央研究所 | アンテナ装置 |
| US20120062798A1 (en) * | 2009-05-20 | 2012-03-15 | Unitron | Tv signal distribution filter having planar inductors |
| US8436698B2 (en) * | 2009-11-02 | 2013-05-07 | Harris Corporation | MEMS-based tunable filter |
| US8373522B2 (en) * | 2010-02-03 | 2013-02-12 | Harris Corporation | High accuracy MEMS-based varactors |
| CN102148609B (zh) * | 2010-02-04 | 2014-12-17 | 赫梯特微波公司 | 宽带模拟带通滤波器 |
| JP2012100180A (ja) * | 2010-11-05 | 2012-05-24 | Hitachi Media Electoronics Co Ltd | チューナブルフィルタ、チューナブルデュプレクサ、及び、それらを用いた移動通信端末 |
| US9000866B2 (en) | 2012-06-26 | 2015-04-07 | University Of Dayton | Varactor shunt switches with parallel capacitor architecture |
| EP2690795B1 (en) | 2012-07-25 | 2017-09-06 | BlackBerry Limited | Transceiver filter and tuning |
| US8743746B2 (en) | 2012-07-25 | 2014-06-03 | Blackberry Limited | Transceiver filter and tuning |
| US9559659B2 (en) * | 2013-03-15 | 2017-01-31 | Wispry, Inc. | Tunable filter systems, devices, and methods |
| 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 |
| JP6308371B2 (ja) * | 2013-04-22 | 2018-04-11 | パナソニックＩｐマネジメント株式会社 | 無線電力伝送装置 |
| WO2015017452A1 (en) | 2013-07-29 | 2015-02-05 | Wispry,Inc. | Adaptive filter response systems and methods |
| US9136822B2 (en) | 2013-08-19 | 2015-09-15 | Harris Corporation | Microelectromechanical system with a micro-scale spring suspension system and methods for making the same |
| US9093975B2 (en) | 2013-08-19 | 2015-07-28 | Harris Corporation | Microelectromechanical systems comprising differential inductors and methods for making the same |
| US9172352B2 (en) | 2013-08-19 | 2015-10-27 | Harris Corporation | Integrated microelectromechanical system devices and methods for making the same |
| US9786973B2 (en) * | 2014-03-18 | 2017-10-10 | Tdk Corporation | Tunable filter using variable impedance transmission lines |
| US9123493B2 (en) | 2014-01-23 | 2015-09-01 | Harris Corporation | Microelectromechanical switches for steering of RF signals |
| DE102014102699B4 (de) | 2014-02-28 | 2018-03-01 | Snaptrack, Inc. | Front-end Schaltung |
| DE102014102701B3 (de) * | 2014-02-28 | 2015-08-27 | Epcos Ag | Frontendschaltung mit einem abstimmbaren Filter |
| US9654983B2 (en) | 2014-04-03 | 2017-05-16 | North Carolina State University | Tunable filter employing feedforward cancellation |
| US9800278B2 (en) | 2015-09-04 | 2017-10-24 | North Carolina State University | Tunable filters, cancellers, and duplexers based on passive mixers |
| US10431388B2 (en) | 2015-12-08 | 2019-10-01 | Avx Corporation | Voltage tunable multilayer capacitor |
| GB2570989B (en) | 2016-05-03 | 2020-12-02 | D Wave Systems Inc | Systems and methods for superconducting devices used in superconducting circuits and scalable computing |
| GB201614241D0 (en) * | 2016-08-19 | 2016-10-05 | Novelda As | Filter |
| US10044087B2 (en) * | 2016-10-14 | 2018-08-07 | Microelectronics Technology, Inc. | Switchable radiators and operating method for the same |
| US10840027B2 (en) | 2017-09-08 | 2020-11-17 | Avx Corporation | High voltage tunable multilayer capacitor |
| WO2019070393A1 (en) | 2017-10-02 | 2019-04-11 | Avx Corporation | HIGH-CAPACITY, TUNABLE, MULTILAYER CAPACITOR, AND NETWORK |
| US11105866B2 (en) | 2018-06-05 | 2021-08-31 | D-Wave Systems Inc. | Dynamical isolation of a cryogenic processor |
| WO2020139681A1 (en) | 2018-12-26 | 2020-07-02 | Avx Corporation | System and method for controlling a voltage tunable multilayer capacitor |
| US11839164B2 (en) | 2019-08-19 | 2023-12-05 | D-Wave Systems Inc. | Systems and methods for addressing devices in a superconducting circuit |
| US12373167B2 (en) * | 2020-01-27 | 2025-07-29 | 1372934 B.C. Ltd. | Systems and methods for variable bandwidth annealing |
| US12388452B2 (en) | 2021-11-03 | 2025-08-12 | 1372934 B.C. Ltd. | Systems and methods for duty cycle compensation of a digital to analog converter (DAC) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2688955B1 (fr) * | 1992-03-17 | 1996-11-15 | Thomson Csf | Filtre accordable haute frequence. |
| JPH08509103A (ja) * | 1992-12-01 | 1996-09-24 | スーパーコンダクティング・コア・テクノロジーズ・インコーポレーテッド | 高温度超電導膜および強誘電性膜を含む同調可能マイクロ波装置 |
| US5472935A (en) * | 1992-12-01 | 1995-12-05 | Yandrofski; Robert M. | Tuneable microwave devices incorporating high temperature superconducting and ferroelectric films |
| 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) |
| US5693429A (en) * | 1995-01-20 | 1997-12-02 | The United States Of America As Represented By The Secretary Of The Army | Electronically graded multilayer ferroelectric composites |
| US5752179A (en) * | 1995-08-17 | 1998-05-12 | Zenith Electronics Corporation | Selective RF circuit with varactor tuned and switched bandpass filters |
| 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 |
| JPH09270338A (ja) * | 1996-03-29 | 1997-10-14 | Tokin Corp | 電子部品 |
| US5917387A (en) * | 1996-09-27 | 1999-06-29 | Lucent Technologies Inc. | Filter having tunable center frequency and/or tunable bandwidth |
| US6096127A (en) * | 1997-02-28 | 2000-08-01 | Superconducting Core Technologies, Inc. | Tuneable dielectric films having low electrical losses |
| 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 |
| US6727535B1 (en) * | 1998-11-09 | 2004-04-27 | Paratek Microwave, Inc. | Ferroelectric varactor with built-in DC blocks |
-
1999
- 1999-12-09 CA CA002352166A patent/CA2352166A1/en not_active Abandoned
- 1999-12-09 EA EA200100654A patent/EA200100654A1/ru unknown
- 1999-12-09 WO PCT/US1999/029230 patent/WO2000035042A1/en not_active Ceased
- 1999-12-09 US US09/457,943 patent/US20020186099A1/en not_active Abandoned
- 1999-12-09 KR KR1020017007172A patent/KR20010080727A/ko not_active Withdrawn
- 1999-12-09 EP EP99961959A patent/EP1145362B1/en not_active Expired - Lifetime
- 1999-12-09 AT AT99961959T patent/ATE265093T1/de not_active IP Right Cessation
- 1999-12-09 JP JP2000587403A patent/JP2002532889A/ja active Pending
- 1999-12-09 DE DE69916660T patent/DE69916660T2/de not_active Expired - Fee Related
- 1999-12-09 CN CN99814262A patent/CN1329762A/zh active Pending
- 1999-12-09 AU AU18434/00A patent/AU1843400A/en not_active Abandoned
-
2004
- 2004-11-01 US US10/979,001 patent/US7145415B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7026680B2 (en) | 2003-03-12 | 2006-04-11 | Fujitsu Limited | Thin film capacitive element, method for producing same and electronic device |
| JP2006196704A (ja) * | 2005-01-13 | 2006-07-27 | Kyocera Corp | 可変容量コンデンサ，回路モジュールおよび通信装置 |
| JP2012142805A (ja) * | 2010-12-29 | 2012-07-26 | Kyoto Institute Of Technology | チューナブルフィルタ、無線装置、受信機および送信機 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1329762A (zh) | 2002-01-02 |
| EP1145362A1 (en) | 2001-10-17 |
| US7145415B2 (en) | 2006-12-05 |
| US20050088255A1 (en) | 2005-04-28 |
| DE69916660D1 (de) | 2004-05-27 |
| EP1145362B1 (en) | 2004-04-21 |
| AU1843400A (en) | 2000-06-26 |
| WO2000035042A1 (en) | 2000-06-15 |
| EA200100654A1 (ru) | 2001-12-24 |
| KR20010080727A (ko) | 2001-08-22 |
| US20020186099A1 (en) | 2002-12-12 |
| CA2352166A1 (en) | 2000-06-15 |
| DE69916660T2 (de) | 2005-04-21 |
| ATE265093T1 (de) | 2004-05-15 |
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