专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2006020542A2 METHOD AND APPARATUS WITH IMPROVED VARACTOR QUALITY FACTOR 审中-公开
标题翻译：具有改进的变量质量因子的方法和装置
公开(公告)号：WO2006020542A2
公开(公告)日：2006-02-23
申请号：PCT/US2005/028040
申请日：2005-08-08
申请人： PARATEK MICROWAVE INC. , QINGHUA, Kang , DU TOIT, Nicolaas , YONGFEI, Zhu
发明人： QINGHUA, Kang , DU TOIT, Nicolaas , YONGFEI, Zhu
IPC分类号： H03H7/12
CPC分类号： H03H7/38
摘要： An embodiment of the present invention provides an apparatus, comprising a varactor; and at least one eternal high-Q fixed capacitors combined with the varactor thereby improving the Q of the varactor. The at least one external high-Q fiE5d capacitor may combined in series with the varactor or in parallel with the varactor. Further, the varactor may be constructed of an internal low-tuning high-Q material with high-Q and large capacitance but low tuning range. The apparatus of one embodiment of the present invention may be incorporated into a 4-pole bandpass filter enabling Q improvement on the circuit performance or also may be incorporated into an amplifier or a voltage controlled oscillators or a phase shifters. Another embodiment of the present invention provides an apparatus, comprising a resonator and a varactor variably coupled into the resonator through an RF transformer, wherein by varying a coupling factor, the Q-factor and the tunability of the apparatus is capable of being affected.
摘要翻译：本发明的实施例提供一种包括变容二极管的装置; 和至少一个永久性高Q固定电容器与变容二极管组合，从而改善变容二极管的Q。至少一个外部高Q fiE5d电容器可以与变容二极管串联或与变容二极管并联。此外，变容二极管可以由具有高Q和大电容但低调谐范围的内部低调谐高Q材料构成。本发明的一个实施例的装置可以并入到能够对电路性能进行Q改善的4极带通滤波器中，或者也可以结合到放大器或压控振荡器或移相器中。本发明的另一实施例提供一种装置，其包括谐振器和通过RF变压器可变地耦合到谐振器中的变容二极管，其中通过改变耦合因子，能够影响该装置的Q因子和可调谐性。

2. 发明申请

WO2006020542A3 METHOD AND APPARATUS WITH IMPROVED VARACTOR QUALITY FACTOR 审中-公开
标题翻译：具有改进的变量质量因子的方法和装置
公开(公告)号：WO2006020542A3
公开(公告)日：2007-05-18
申请号：PCT/US2005028040
申请日：2005-08-08
申请人： PARATEK MICROWAVE INC , QINGHUA KANG , DU TOIT NICOLAAS , YONGFEI ZHU
发明人： QINGHUA KANG , DU TOIT NICOLAAS , YONGFEI ZHU
IPC分类号： H03H5/12 , H03H7/00 , H03H7/01
CPC分类号： H03H7/38
摘要： The present invention provides an apparatus (200) comprising a varactor (210) and at least one external high-Q fixed capacitor (225) combined with the varactor (210) to improve the Q factor of the varactor (210). The high-Q fixed capacitor (225) may be combined in series or in parallel with the varactor (210). The varactor (210) may be constructed of an internal low-tuning high-Q material with high- Q and large capacitance, but low tuning range. The apparatus (200) may be incorporated into a 4-pole bandpass filter.
摘要翻译：本发明提供了一种包括变容二极管（210）和与变容二极管（210）组合的至少一个外部高Q固定电容器（225）的装置（200），以改善变容二极管（210）的Q因子。高Q固定电容器（225）可以与变容二极管（210）串联或并联组合。变容二极管（210）可以由具有高Q和大电容但低调谐范围的内部低调谐高Q材料构成。装置（200）可以结合到4极带通滤波器中。

3. 发明授权

US07034636B2 Tunable filters having variable bandwidth and variable delay 有权
标题翻译：具有可变带宽和可变延迟的可调滤波器
公开(公告)号：US07034636B2
公开(公告)日：2006-04-25
申请号：US10912284
申请日：2004-08-05
申请人： Khosro Shamsaifar , Yongfei Zhu , John Kvarnstrand , Louise Sengupta
发明人： Khosro Shamsaifar , Yongfei Zhu , John Kvarnstrand , Louise Sengupta
IPC分类号： H03H7/12 , H03H7/20
CPC分类号： H01P1/20363 , H03F1/3229 , H03H7/12 , H03H7/1775
摘要： An apparatus for reducing influence by selected signal components in a communication link includes a first signal line conveying a first communication signal including a desired signal component and at least one undesired signal component; a second signal line conveying a second communication signal substantially including at least the at least one undesired signal component; a signal treating unit coupled with the second signal line for affecting at least one parameter associated with the second communication signal to present a modified second communication signal at a first output locus coupled for combining the modified second communication signal with the first communication signal to present an improved communication signal at a second output locus. The at least one undesired signal component affects the improved communication signal less than the at least one undesired signal component affects the first communication signal.
摘要翻译：一种用于减少通信链路中所选择的信号分量的影响的装置包括：第一信号线，其传送包括期望信号分量和至少一个不需要的信号分量的第一通信信号; 传送基本上至少包括所述至少一个不期望信号分量的第二通信信号的第二信号线; 信号处理单元，与第二信号线耦合，用于影响与第二通信信号相关联的至少一个参数，以在第一输出轨迹呈现经修改的第二通信信号，该第一输出轨迹被耦合以将经修改的第二通信信号与第一通信信号组合，在第二输出轨迹处改善通信信号。所述至少一个不需要的信号分量影响小于至少一个不期望的信号分量影响第一通信信号的改进的通信信号。

4. 发明授权

US06525630B1 Microstrip tunable filters tuned by dielectric varactors 有权
标题翻译：由介质变容二极管调谐的微带可调谐滤波器
公开(公告)号：US06525630B1
公开(公告)日：2003-02-25
申请号：US09704850
申请日：2000-11-02
申请人： Yongfei Zhu , Louise C. Sengupta , Yu Rong
发明人： Yongfei Zhu , Louise C. Sengupta , Yu Rong
IPC分类号： H01P120
CPC分类号： H01P1/20336
摘要： An electronic filter includes a substrate, a ground conductor, an input, an output, a first microstrip line positioned on the substrate and electrically coupled to the input and the output, and a first tunable dielectric varactor electrically connected between the microstrip line and the ground conductor. The input preferably includes a second microstrip line positioned on the substrate and including a portion lying parallel to the first microstrip line. The output preferable includes a third microstrip line positioned on the substrate and including a portion lying parallel to the first microstrip line. The first microstrip line includes a first end and a second end, the first end being open circuited and the varactor being connected between the second end and the ground conductor. The filter further includes a bias voltage circuit including a high impedance line, a radial stub extending from the high impedance line, and a patch connected to the high impedance line for connection to a DC source. In a multiple pole embodiment, the filter further includes additional microstrip lines positioned on the filter substrate parallel to the first microstrip line and additional tunable dielectric varactors electrically connected between the additional microstrip lines and the ground conductor.
摘要翻译：电子滤波器包括基板，接地导体，输入端，输出端，位于基板上并电耦合到输入端和输出端的第一微带线，以及电连接在微带线与地之间的第一可调介质变容二极管导体。输入优选地包括位于基板上并包括平行于第一微带线的部分的第二微带线。输出优选包括位于基板上并包括平行于第一微带线的部分的第三微带线。第一微带线包括第一端和第二端，第一端开路并且变容二极管连接在第二端和接地导体之间。滤波器还包括偏置电压电路，该偏置电压电路包括高阻抗线路，从高阻抗线路延伸的径向短截线以及连接到用于连接到DC源极的高阻抗线路的贴片。在多极实施例中，滤波器还包括平行于第一微带线布置在滤波器衬底上的附加微带线和电连接在附加微带线和接地导体之间的附加可调电介质变容二极管。

5. 发明授权

US07145415B2 Electrically tunable filters with dielectric varactors 有权
标题翻译：带电介质变压器的电可调滤波器
公开(公告)号：US07145415B2
公开(公告)日：2006-12-05
申请号：US10979001
申请日：2004-11-01
申请人： Louise C. Sengupta , Steven C. Stowell , Yongfei Zhu , Somnath Sengupta , Luna H. Chiu , Xubai Zhang
发明人： Louise C. Sengupta , Steven C. Stowell , Yongfei Zhu , Somnath Sengupta , Luna H. Chiu , Xubai Zhang
IPC分类号： H03H7/01
CPC分类号： H01P1/20
摘要： This invention provides a voltage tunable filter comprising an input connection point, an output connection point, and at least one circuit branch electrically coupled to the input connection point and the output connection point and including a voltage tunable dielectric varactor electrically connected to an inductor. The voltage tunable filter can be one of a low-pass, high-pass, band-pass, or band-stop filter. The varactor can include built-in DC blocking capacitors.
摘要翻译：本发明提供了一种电压可调谐滤波器，包括输入连接点，输出连接点和电耦合到输入连接点和输出连接点的至少一个电路支路，并且包括电连接到电感器的电压可调介质变容二极管。电压可调滤波器可以是低通，高通，带通或带阻滤波器之一。变容二极管可以包括内置的直流阻塞电容器。

6. 发明授权

US06903633B2 Electronic tunable filters with dielectric varactors 有权
标题翻译：带电介质可变电抗器的电子可调谐滤波器
公开(公告)号：US06903633B2
公开(公告)日：2005-06-07
申请号：US10682650
申请日：2003-10-09
申请人： Yongfei Zhu , Louise C. Sengupta
发明人： Yongfei Zhu , Louise C. Sengupta
IPC分类号： H01P1/203 , H01P1/205 , H01P1/20
CPC分类号： H01P1/20336 , H01P1/20381 , H01P1/2056
摘要： A radio frequency electronic filter includes an input, an output, and first and second resonators coupled to the input and the output, with the first resonator including a first voltage tunable dielectric varactor and the second resonator including a second voltage tunable dielectric varactor. The resonators can include a lumped element resonator, a ceramic resonator, or a microstrip resonator. Additional voltage tunable dielectric varactors can be connected between the input and the first resonator and between the second resonator and the output. Voltage tunable dielectric varactors can also be connected between the first and second resonators.
摘要翻译：射频电子滤波器包括输入，输出以及耦合到输入和输出的第一和第二谐振器，其中第一谐振器包括第一电压可调介质变容二极管，第二谐振器包括第二电压可调介质变容二极管。谐振器可以包括集总元件谐振器，陶瓷谐振器或微带谐振器。附加的电压可调谐介电变容二极管可以连接在输入端和第一谐振器之间以及第二谐振器和输出端之间。电压可调介质变容二极管也可以连接在第一和第二谐振器之间。

7. 发明授权

US06794960B2 Voltage tunable laminated dielectric materials for microwave waveguide applications 有权
标题翻译：用于微波波导应用的电压可调叠层电介质材料
公开(公告)号：US06794960B2
公开(公告)日：2004-09-21
申请号：US10068355
申请日：2002-02-06
申请人： Luna H. Chiu , Yongfei Zhu , Xubai Zhang , Steven C. Stowell , Andrey Kozyrev , Somnath Sengupta , Louise Sengupta
发明人： Luna H. Chiu , Yongfei Zhu , Xubai Zhang , Steven C. Stowell , Andrey Kozyrev , Somnath Sengupta , Louise Sengupta
IPC分类号： H01P318
CPC分类号： H05K1/162 , H01P1/181 , H01P3/003 , H01P3/06 , H01P3/081 , H01P3/088 , H01P3/122 , H01P7/06 , H01Q3/44 , H05K1/024 , H05K2201/0187 , H05K2201/037 , H05K2203/105 , H05K2203/171
摘要： A tunable dielectric structure includes a first layer of dielectric material, a second layer of dielectric material positioned adjacent to the first layer of dielectric material, with the second layer of dielectric material having a dielectric constant that is less than the dielectric constant of the first layer of dielectric material, and electrodes for applying a controllable voltage across the first dielectric material, thereby controlling a dielectric constant of the first dielectric material, wherein at least one of the electrodes is positioned between the first and second layers of dielectric material. The dielectric materials can be formed in various shapes and assembled in various orientations with respect to each other. The tunable dielectric structure is used in various devices including coaxial cables, cavity antennas, microstrip lines, coplanar lines, and waveguides.
摘要翻译：可调电介质结构包括第一介电材料层，邻近第一介电材料层定位的第二介电材料层，第二介电材料层的介电常数小于第一层的介电常数以及用于在第一介电材料上施加可控电压的电极，从而控制第一介电材料的介电常数，其中至少一个电极位于第一和第二介电层之间。介电材料可以形成为各种形状并且以各种取向相对于彼此组装。可调电介质结构用于包括同轴电缆，空腔天线，微带线，共面线和波导在内的各种装置。

8. 发明授权

US06683517B2 Voltage tunable laminated dielectric materials for microwave applications such as a coaxial cable 有权
标题翻译：用于微波应用的电压可调叠层电介质材料，如同轴电缆
公开(公告)号：US06683517B2
公开(公告)日：2004-01-27
申请号：US10068734
申请日：2002-02-06
申请人： Luna H. Chiu , Yongfei Zhu , Xubai Zhang , Steven C. Stowell , Andrey Kozyrev , Somnath Sengupta , Louise Sengupta
发明人： Luna H. Chiu , Yongfei Zhu , Xubai Zhang , Steven C. Stowell , Andrey Kozyrev , Somnath Sengupta , Louise Sengupta
IPC分类号： H01P306
CPC分类号： H05K1/162 , H01P1/181 , H01P3/003 , H01P3/06 , H01P3/081 , H01P3/088 , H01P3/122 , H01P7/06 , H01Q3/44 , H05K1/024 , H05K2201/0187 , H05K2201/037 , H05K2203/105 , H05K2203/171
摘要： A tunable dielectric structure includes a first layer of dielectric material, a second layer of dielectric material positioned adjacent to the first layer of dielectric material, with the second layer of dielectric material having a dielectric constant that is less than the dielectric constant of the first layer of dielectric material, and electrodes for applying a controllable voltage across the first dielectric material, thereby controlling a dielectric constant of the first dielectric material, wherein at least one of the electrodes is positioned between the first and second layers of dielectric material. The dielectric materials can be formed in various shapes and assembled in various orientations with respect to each other. The tunable dielectric structure is used in various devices including coaxial cables, cavity antennas, microstrip lines, coplanar lines, and waveguides.
摘要翻译：可调电介质结构包括第一介电材料层，邻近第一介电材料层定位的第二介电材料层，第二介电材料层的介电常数小于第一层的介电常数以及用于在第一介电材料上施加可控电压的电极，从而控制第一介电材料的介电常数，其中至少一个电极位于第一和第二介电层之间。介电材料可以形成为各种形状并且以各种取向相对于彼此组装。可调电介质结构用于包括同轴电缆，空腔天线，微带线，共面线和波导在内的各种装置。

9. 发明授权

US06404614B1 Voltage tuned dielectric varactors with bottom electrodes 有权
标题翻译：具有底部电极的调压介质变容二极管
公开(公告)号：US06404614B1
公开(公告)日：2002-06-11
申请号：US09844832
申请日：2001-04-27
申请人： Yongfei Zhu , Louise C. Sengupta
发明人： Yongfei Zhu , Louise C. Sengupta
IPC分类号： H01G500
CPC分类号： H01P1/181
摘要： A voltage tunable dielectric varactor includes a substrate having a first dielectric constant and having generally a planar surface, first and second electrodes positioned on the generally planar surface of the substrate, the first and second electrodes being separated to form a first gap therebetween; a tunable dielectric layer positioned on the first and second electrodes and in the first gap, the tunable dielectric layer having a second dielectric constant greater than the first dielectric constant; and third and fourth electrodes positioned on a surface of the tunable dielectric layer opposite the first and second electrodes, the third and fourth electrodes being separated to form a second gap therebetween.
摘要翻译：电压可调介质变容二极管包括具有第一介电常数并且具有大致平坦表面的基板，位于基板的大致平坦的表面上的第一和第二电极，第一和第二电极被分离以在其间形成第一间隙; 位于所述第一和第二电极上以及在所述第一间隙中的所述可调电介质层，所述可调电介质层具有大于所述第一介电常数的第二介电常数; 以及位于与第一和第二电极相对的可调电介质层的表面上的第三和第四电极，第三和第四电极被分离以在它们之间形成第二间隙。

10. 发明授权

US5527567A Metalorganic chemical vapor deposition of layered structure oxides 失效
公开(公告)号：US5527567A
公开(公告)日：1996-06-18
申请号：US454029
申请日：1995-05-30
申请人： Seshu B. Desu , Wei Tao , Chien H. Peng , Tingkai Li , Yongfei Zhu
发明人： Seshu B. Desu , Wei Tao , Chien H. Peng , Tingkai Li , Yongfei Zhu
IPC分类号： C01G29/00 , C01G31/00 , C01G35/00 , C23C16/40 , C30B29/22 , H01B3/00 , H01L21/02 , H01L21/311 , H01L21/314 , H01L21/316 , H05H1/20
CPC分类号： C23C16/40 , H01L21/31122 , H01L21/31691 , H01L28/55 , H01L28/60 , H01L28/75
摘要： A method of fabricating high quality layered structure oxide ferroelectric thin films. The deposition process is a chemical vapor deposition process involving chemical reaction between volatile metal organic compounds of various elements comprising the layered structure material to be deposited, with other gases in a reactor, to produce a nonvolatile solid that deposits on a suitably placed substrate such as a conducting, semiconducting, insulating, or complex integrated circuit substrate. The source materials for this process may include organometallic compounds such as alkyls, alkoxides, .beta.-diketonates or metallocenes of each individual element comprising the layered structure material to be deposited and oxygen. Preferably, the reactor in which the deposition is done is either a hot wall or a cold wall reactor and the vapors are introduced into this reactor either through a set of bubblers or through a direct liquid injection system. The ferroelectric films can be used for device applications such as in capacitors, dielectric resonators, heat sensors, transducers, actuators, nonvolatile memories, optical waveguides and displays.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式