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1. 发明授权

US5694134A Phased array antenna system including a coplanar waveguide feed arrangement 失效
标题翻译：相控阵天线系统，包括共面波导馈线装置
公开(公告)号：US5694134A
公开(公告)日：1997-12-02
申请号：US182296
申请日：1994-01-14
申请人： Frank Barnes
发明人： Frank Barnes
IPC分类号： H01L39/02 , H01G7/06 , H01P1/18 , H01P1/203 , H01P3/08 , H01P7/08 , H01P9/00 , H01Q1/36 , H01Q3/30 , H01Q3/44 , H01Q7/00 , H01Q13/08 , H01Q1/38
CPC分类号： H01P7/082 , H01G7/06 , H01P1/181 , H01P7/088 , H01Q1/364 , H01Q3/44
摘要： The disclosure relates to a phased array antenna for microwave and millimeter wave applications, using either microstrip line, coplanar waveguide, or other construction techniques incorporating a solid dielectric transmission line. A continuously variable phase delay structure which is used to control the beam pattern of the phased array antenna can be applied to the construction of resonant frequency tunable coplanar waveguide antennas and impedance tunable quarter-wave transformers. A thin film of barium strontium titanate (Ba.sub.x Sr.sub.1-x TiO.sub.3) or other nonlinear material such as PbZr.sub.x Ti.sub.1-x O.sub.3 (PZT), LiNbO.sub.3, etc. is deposited upon the coplanar waveguide, and/or the patch antenna element. The dielectric constant of the thin film can be made to vary significantly by applying a DC voltage to the thin film. The propagation constant of a transmission line is directly proportional to the square root of the effective dielectric constant (assuming a lossless dielectric). In an array of multiple antenna elements provided with the feed structure using the disclosed transmission lines, the direction of the resultant main beam of the array can be made to vary over a complete half-sphere with only two adjustable DC voltages applied to the dielectric thin films.
摘要翻译：本公开涉及用于微波和毫米波应用的相控阵天线，其使用微带线，共面波导或包含固体介电传输线的其它构造技术。用于控制相控阵天线的波束图案的连续可变相位延迟结构可以应用于谐振频率可调共面波导天线和阻抗可调四分之一波长变压器的构造。钛酸锶钡（BaxSr1-xTiO3）或其他非线性材料如PbZrxTi1-xO3（PZT），LiNbO3等的薄膜沉积在共面波导和/或贴片天线元件上。通过向薄膜施加直流电压，可以使薄膜的介电常数变化很大。传输线的传播常数与有效介电常数的平方根（假设为无损耗电介质）成正比。在使用所公开的传输线设置有馈电结构的多个天线元件的阵列中，阵列的所得主波束的方向可以在整个半球上变化，只有两个可调直流电压施加到电介质薄层电影。

2. 发明授权

US5589845A Tuneable electric antenna apparatus including ferroelectric material 失效
标题翻译：可调电气天线装置，包括铁电材料
公开(公告)号：US5589845A
公开(公告)日：1996-12-31
申请号：US484012
申请日：1995-06-07
申请人： Robert M. Yandrofski , John C. Price , Frank Barnes , Allen M. Hermann , James F. Scott
发明人： Robert M. Yandrofski , John C. Price , Frank Barnes , Allen M. Hermann , James F. Scott
IPC分类号： H01G7/06 , H01P1/18 , H01P7/08 , H01Q1/36 , H01Q3/44 , H01Q15/02
CPC分类号： H01P7/082 , H01G7/06 , H01P1/181 , H01P7/084 , H01P7/088 , H01Q1/364 , H01Q3/44 , Y10S505/70 , Y10S505/701 , Y10S505/866
摘要： The disclosure relates to ferroelectric and superconducting thin films used in combination to produce low-loss passive microwave and millimeter wave devices which are frequency tuneable. Various metal oxide superconducting and ferroelectric thin films can be deposited in numerous multilayer geometries via a variety of deposition techniques to produce devices which can manipulate microwave and millimeter wave signals through the application of voltage bias signals across the ferroelectric films. Numerous superconducting microwave and millimeter wave devices, including delay lines, phase shifters, resonators, oscillators, filters, electrically-small antennas, half-loop antennas, directional couplers, patch antennas, and various radiative gratings, are made frequency-tuneable by utilizing voltage-tuneable capacitor structures fabricated from voltage-biased ferroelectric thin films. Tuneable antenna arrays are also disclosed incorporating the combined superconducting and ferroelectric thin film structures and geometries which allow for electrical steering of beam patterns by the application of one or more voltage bias signals to ferroelectric thin film gratings.
摘要翻译：本公开涉及组合使用的铁电和超导薄膜以产生可变频的低损耗无源微波和毫米波器件。各种金属氧化物超导和铁电薄膜可以通过各种沉积技术以许多多层几何形状沉积，以产生能够通过在铁电体膜上施加电压偏置信号来操纵微波和毫米波信号的装置。许多超导微波和毫米波器件，包括延迟线，移相器，谐振器，振荡器，滤波器，电子小天线，半环形天线，定向耦合器，贴片天线和各种辐射光栅，可以通过利用电压进行频率调谐由电压偏置铁电薄膜制造的可调谐电容器结构。还公开了可调谐天线阵列，其结合了组合的超导和铁电薄膜结构和几何形状，其允许通过将一个或多个电压偏置信号施加到铁电薄膜光栅来对波束图案进行电子操纵。

3. 发明授权

US6096127A Tuneable dielectric films having low electrical losses 失效
标题翻译：具有低电损耗的调谐电介质膜
公开(公告)号：US6096127A
公开(公告)日：2000-08-01
申请号：US807334
申请日：1997-02-28
申请人： Duane Brian Dimos , Robert William Schwartz , Mark Victor Raymond , Husam Niman Al-Shareef , Carl Mueller , David Galt
发明人： Duane Brian Dimos , Robert William Schwartz , Mark Victor Raymond , Husam Niman Al-Shareef , Carl Mueller , David Galt
IPC分类号： C30B5/00 , H01P1/18 , H01P3/00 , C30B1/00
CPC分类号： H01P3/003 , C30B29/32 , C30B5/00 , H01P1/181
摘要： The present invention is directed to a method for forming dielectric thin films having substantially reduced electrical losses at microwave and millimeter wave frequencies relative to conventional dielectric thin films. The reduction in losses is realized by dramatically increasing the grain sizes of the dielectric films, thereby minimizing intergranular scattering of the microwave signal due to grain boundaries and point defects. The increase in grain size is realized by heating the film to a temperature at which the grains experience regrowth. The grain size of the films can be further increased by first depositing the films with an excess of one of the compoents, such that a highly mobile grain boundary phase is formed.
摘要翻译：本发明涉及一种用于形成电介质薄膜的方法，该方法相对于传统的介电薄膜在微波和毫米波频率下具有显着降低的电损耗。通过显着增加介电膜的晶粒尺寸来实现损耗的减少，从而最小化由于晶界和点缺陷引起的微波信号的晶间散射。通过将膜加热到晶粒经历再生长的温度来实现晶粒尺寸的增加。通过首先用过量的一种组分沉积薄膜，可以进一步提高薄膜的晶粒尺寸，从而形成高度移动的晶界相。

4. 发明授权

US5721194A Tuneable microwave devices including fringe effect capacitor incorporating ferroelectric films 失效
标题翻译：可调谐微波器件，包括掺入铁电薄膜的边缘效应电容器
公开(公告)号：US5721194A
公开(公告)日：1998-02-24
申请号：US480164
申请日：1995-06-07
申请人： Robert M. Yandrofski , John Charles Price , Frank Barnes , Allen M. Hermann , James Floyd Scott
发明人： Robert M. Yandrofski , John Charles Price , Frank Barnes , Allen M. Hermann , James Floyd Scott
IPC分类号： H01G7/06 , H01P1/18 , H01P7/08 , H01Q1/36 , H01Q3/44 , H01B12/02
CPC分类号： H01P7/082 , H01G7/06 , H01P1/181 , H01P7/084 , H01P7/088 , H01Q1/364 , H01Q3/44 , Y10S505/70 , Y10S505/701 , Y10S505/866
摘要： The present invention relates to a tuneable fringe effect capacitor for conducting radio frequency energy. The capacitor includes a thin film of ferroelectric material, a pair of films of a conductive material deposited on the ferroelectric film with a gap between the films, and a substrate for the ferroelectric material and the conductive films. The capacitance value across the gap is varied by applying a voltage to the ferroelectric material and thereby altering the dielectric constant of the ferroelectric material.
摘要翻译：本发明涉及一种用于进行射频能量的可调式边缘效应电容器。电容器包括铁电材料薄膜，沉积在铁电薄膜上的一对导电材料薄膜，薄膜之间具有间隙，以及用于铁电材料和导电膜的基板。跨越间隙的电容值通过向铁电体材料施加电压并从而改变铁电材料的介电常数来改变。

5. 发明授权

US5990766A Electrically tunable microwave filters 失效
标题翻译：电可调谐微波滤波器
公开(公告)号：US5990766A
公开(公告)日：1999-11-23
申请号：US883805
申请日：1997-06-27
申请人： Zhihang Zhang , Attila Weiser, Jr.
发明人： Zhihang Zhang , Attila Weiser, Jr.
IPC分类号： H01P1/203 , H01P7/06 , H01P7/08 , H01P7/10
CPC分类号： H01P7/10 , H01P1/20336 , H01P1/20381 , H01P1/2039 , H01P7/06 , H01P7/082 , H01P7/088 , Y10S505/701 , Y10S505/866
摘要： The tunable filters of the present invention incorporate tunable dielectric materials (e.g., bulk and thin film ferroelectric and paraelectric materials) in contact with segments of resonators that are at an RF voltage maximum to alter the pass band or stop band characteristic of an RF signal outputted by the filter. The biasing circuitry in contact with the tunable dielectric material can include components for inhibiting or retarding the coupling of RF energy to the biasing circuit.
摘要翻译：本发明的可调谐滤波器包括与处于RF电压最大的谐振器段接触的可调电介质材料（例如，体和薄膜铁电和顺电材料），以改变输出的RF信号的通带或阻带特性通过过滤器。与可调电介质材料接触的偏置电路可以包括用于抑制或延迟RF能量耦合到偏置电路的组件。

6. 发明授权

US5656575A Method and apparatus for fabricating weak link junctions on vicinally cut substrates 失效
标题翻译：用于在邻近切割的基底上制造弱连接结的方法和装置
公开(公告)号：US5656575A
公开(公告)日：1997-08-12
申请号：US387594
申请日：1995-02-13
申请人： Carl H. Mueller
发明人： Carl H. Mueller
IPC分类号： H01L39/22 , C30B25/02
CPC分类号： H01L39/225 , Y10S505/702
摘要： The present invention provides a superconducting device having a weak link junction with an angle at the grain boundary between the two superconductor crystals being variable. The angle at the junction is substantially equivalent to a vicinal angle for the substrate. Accordingly, the magnitude of the angle at the junction can be varied by varying the vicinal angle of the substrate. This result can be realized by using buffer layers of different compositions underlying the superconducting materials on either side of the weak link junction. Weak link junctions and reproducible properties are essential for a variety of electronic and magnetic sensing devices.
摘要翻译：本发明提供了具有可变的两个超导体晶体之间的在晶界处的角度的弱连接结的超导装置。接合处的角度基本上等于衬底的邻角。因此，可以通过改变衬底的邻角来改变接合处的角度的大小。该结果可以通过使用在弱连接点两侧的超导材料下方的不同组成的缓冲层来实现。弱连接点和可再现性质对于各种电子和磁感测装置至关重要。

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