-
公开(公告)号：US4423393A
公开(公告)日：1983-12-27
申请号：US345839
申请日：1982-02-04
CPC分类号： H01P1/185
摘要： A high speed reflectance type phase shifter is described incorporating a wide bandwidth coupler having four ports, two of the ports having a high speed diode coupled thereacross a resistor coupled in shunt across each diode to provide power dissipation at times the diodes are non-conducting and a current driver to provide bias current to the diodes. The invention provides constant insertion loss through the phase shifter during the on state and off state of the diodes corresponding to the two phase conditions of the output signal without affecting bandwidth.
摘要翻译： 描述了一种高速反射型移相器，其包括具有四个端口的宽带耦合器，其中两个端口具有耦合到跨越每个二极管的电阻耦合的高速二极管，以在二极管不导通时提供功率消耗， 用于向二极管提供偏置电流的电流驱动器。 本发明在对应于输出信号的两个相位条件的二极管的接通状态和断开状态期间通过移相器提供恒定的插入损耗而不影响带宽。
-
公开(公告)号：US4904831A
公开(公告)日：1990-02-27
申请号：US293164
申请日：1989-01-03
申请人： Harvey C. Nathanson , Michael C. Driver , Michael W. Cresswell , Ronald G. Freitag , Donald K. Alexander , Daniel F. Yaw
发明人： Harvey C. Nathanson , Michael C. Driver , Michael W. Cresswell , Ronald G. Freitag , Donald K. Alexander , Daniel F. Yaw
CPC分类号： G01S7/032 , H01Q21/0025 , H01Q3/26
摘要： An improved phased-array active antenna transmit-receive means utilizing a multiplicity of individual transmit-receive cells positioned in an array format upon a common wafer of semiconductor material. Each transmit-receiver cell, comprises a multiplicity of redundant, integrated circuit, electronic devices implanted upon the common semiconductor substrate. The transmit-receive cells utilize novel mitered mechanical switches to permanently interconnect individual electronic devices into either transmit or receive circuits during the fabrication and test of the transmit-receive cells. Radio frequency and direct current input and output vias formed from a novel metal evaporation technique connect the devices upon the surface of the common semiconductor wafer to underlying, insulated direct current distribution circuits and a radio frequency manifold. This array of improved phased-array active antenna transmit-receive means comprised of transmit-receive cells sharing common central processing means, logic control and heat dissipation means results in a significant reduction in the size and weight of the standard phased-array active antenna system. This significant reduction in antenna system size and weight is very important in broad band electronic countermeasure systems or narrow band phased array active antenna radar systems as used in advanced tactical fighters, or space applications.
摘要翻译： 一种改进的相控阵有源天线发射 - 接收装置，利用位于半导体材料的公共晶片上的阵列格式的多个单独的发射 - 接收单元。 每个发射 - 接收器单元包括多个冗余的集成电路，注入到公共半导体衬底上的电子器件。 发射接收蜂窝小区利用新颖的倾斜机械开关，在发射接收小区的制造和测试期间，将各个电子设备永久地互连到发射或接收电路中。 由新型金属蒸发技术形成的射频和直流输入和输出通孔将公共半导体晶片的表面上的器件连接到下面的绝缘直流分配电路和射频歧管。 由共享公共中央处理装置，逻辑控制和散热装置的发射 - 接收单元组成的改进的相控阵有源天线发射 - 接收装置阵列导致标准相控阵有源天线系统的尺寸和重量的显着降低 。 天线系统尺寸和重量的显着降低对于在高级战术战机或空间应用中使用的宽带电子对抗系统或窄带相控阵有源天线雷达系统是非常重要的。
-
公开(公告)号：US4547745A
公开(公告)日：1985-10-15
申请号：US470650
申请日：1983-02-28
CPC分类号： H03F3/602
摘要： A power combiner has been described incorporating N transmission lines each having a quarter wavelength or multiple thereof for a frequency within a predetermined frequency range where the input of each transmission line has a resistor coupled thereto with the other ends of the resistors coupled together using inductance and capacitance to compensate for the distances between the resistors to provide a floating node which is low impedance in the predetermined frequency range. A composite amplifier is described on gallium arsenide wherein a power divider and power combiner are coupled to a plurality of MESFET's and wherein each input and output of the power combiner and power divider have a resistive load with respect to the MESFET while including a matching circuit and wherein each input of the combiner has a resistor coupled to a first floating node and each output of the divider has a resistor coupled to a second floating node. The invention overcomes the problem of a composite amplifier where many elemental amplifiers must be driven and their output signals combined at frequencies where the physical layout would provide phase differences such as in a layout of parallel cells on a flat surface of a substrate.
摘要翻译： 已经描述了一种功率合成器，其具有每个具有四分之一波长或多个波长的N个传输线，用于在预定频率范围内的频率，其中每个传输线的输入具有耦合到其上的电阻器，电阻器的另一端使用电感耦合在一起， 电容以补偿电阻器之间的距离，以提供在预定频率范围内为低阻抗的浮动节点。 在砷化镓上描述了复合放大器，其中功率分配器和功率组合器耦合到多个MESFET，并且其中功率组合器和功率分配器的每个输入和输出具有相对于MESFET的电阻负载，同时包括匹配电路和 其中所述组合器的每个输入具有耦合到第一浮动节点的电阻器，并且所述分压器的每个输出端具有耦合到第二浮动节点的电阻器。 本发明克服了复合放大器的问题，其中许多元件放大器必须被驱动，并且其输出信号在物理布局将提供相位差的频率下组合，例如在衬底的平坦表面上的平行单元的布局。
-
公开(公告)号：US10084075B2
公开(公告)日：2018-09-25
申请号：US15624445
申请日：2017-06-15
申请人： Bettina A. Nechay , Shalini Gupta , Matthew Russell King , Eric J. Stewart , Robert S. Howell , Justin Andrew Parke , Harlan Carl Cramer , Howell George Henry , Ronald G. Freitag , Karen Marie Renaldo
发明人： Bettina A. Nechay , Shalini Gupta , Matthew Russell King , Eric J. Stewart , Robert S. Howell , Justin Andrew Parke , Harlan Carl Cramer , Howell George Henry , Ronald G. Freitag , Karen Marie Renaldo
IPC分类号： H01L29/06 , H01L29/778 , H01L29/66 , H01L29/10 , H01L29/20 , H01L21/3065 , H01L29/205 , H01L29/15
CPC分类号： H01L29/7785 , H01L21/3065 , H01L29/0657 , H01L29/1029 , H01L29/1058 , H01L29/157 , H01L29/2003 , H01L29/205 , H01L29/66431 , H01L29/66462 , H01L29/7783
摘要： A transistor device is provided that comprises a base structure, and a superlattice structure overlying the base structure and comprising a multichannel ridge having sloping sidewalls. The multichannel ridge comprises a plurality of heterostructures that each form a channel of the multichannel ridge, wherein a parameter of at least one of the heterostructures is varied relative to other heterostructures of the plurality of heterostructures. The transistor device further comprises a three-sided gate contact that wraps around and substantially surrounds the top and sides of the multichannel ridge along at least a portion of its depth.
-
公开(公告)号：US5066925A
公开(公告)日：1991-11-19
申请号：US625398
申请日：1990-12-10
申请人： Ronald G. Freitag
发明人： Ronald G. Freitag
IPC分类号： H03F3/60
CPC分类号： H03F3/602
摘要： In a particular embodiment, the invention is directed to a composite MMIC amplifier comprising a plurality of active devices (e.g., FET, HBT, HEMT) arranged on a semiconductor substrate and having inputs and outputs. A pair of input and output transmission lines are coupled in antiphase arrangement to corresponding inputs and outputs of alternate active devices. Each pair of input transmission lines has branched portions extending from a common polarized input terminal. Each branched portion of like polarity extends to a corresponding alternate input and output of an active device and crosses a branched portion of opposite polarity without interference. Impedance matching means is coupled across antiphase pairs of inputs and outputs of adjacent active devices and forms a virtual ground therebetween thereby simplifying the impedance matching circuit.
摘要翻译： 在特定实施例中，本发明涉及一种复合MMIC放大器，其包括布置在半导体衬底上并具有输入和输出的多个有源器件（例如，FET，HBT，HEMT）。 一对输入和输出传输线以反相装置耦合到备用有源器件的相应输入和输出。 每对输入传输线具有从公共偏振输入端延伸的分支部分。 类似极性的每个分支部分延伸到有源器件的对应的交替输入和输出，并且跨越相反极性的分支部分而没有干扰。 阻抗匹配装置耦合在相邻有源器件的反相输入和输出对之间，并在其间形成虚拟接地，从而简化了阻抗匹配电路。
-
6.发明授权Transmit-receive means for phased-array active antenna system using rf redundancy 失效发射接收装置，用于使用rf冗余的相控阵有源天线系统
公开(公告)号：US4823136A
公开(公告)日：1989-04-18
申请号：US13490
申请日：1987-02-11
申请人： Harvey C. Nathanson , Michael C. Driver , Michael W. Cresswell , Ronald G. Freitag , Donald K. Alexander , Daniel F. Yaw
发明人： Harvey C. Nathanson , Michael C. Driver , Michael W. Cresswell , Ronald G. Freitag , Donald K. Alexander , Daniel F. Yaw
CPC分类号： H01Q21/0025 , G01S7/032 , H01Q3/26
摘要： An improved phased-array active antenna transmit-receive means utilizing a multiplicity of individual transmit-receive cells positioned in an array format upon a common wafer of semiconductor material. Each transmit-receive cell, comprises a multiplicity of redundant, integrated circuit, electronic devices implanted upon the common semiconductor substrate. The transmit-receive cells utilize novel mitered mechanical switches to permanently interconnect individual electronic devices into either transmit or receive circuits during the fabrication and test of the transmit-receive cells. Radio frequency and direct current input and output vias formed from a novel metal evaportion technique connect the devices upon the surface of the common semiconductor wafer to underlying, insulated direct current distribution circuits and a radio frequency manifold. This array of improved phased-array active antenna transmit-receive means comprised of transmit-receive cells sharing common central processing means, logic control and heat dissipation means results in a significant reduction in the size and weight of the standard phased-array active antenna system. This significant reduction in antenna system size and weight is very important in broad band electronic countermeasure systems or narrow band phased array active antenna radar systems as used in advanced tactical fighters, or space applications.
摘要翻译： 一种改进的相控阵有源天线发射 - 接收装置，利用位于半导体材料的公共晶片上的阵列格式的多个单独的发射 - 接收单元。 每个发射 - 接收单元包括多个冗余的集成电路，注入到公共半导体衬底上的电子器件。 发射接收蜂窝小区利用新颖的倾斜机械开关，在发射接收小区的制造和测试期间，将各个电子设备永久地互连到发射或接收电路中。 由新型金属蒸发技术形成的射频和直流输入和输出通孔将公共半导体晶片的表面上的器件连接到下面的绝缘直流分配电路和射频歧管。 由共享公共中央处理装置，逻辑控制和散热装置的发射 - 接收单元组成的改进的相控阵有源天线发射 - 接收装置阵列导致标准相控阵有源天线系统的尺寸和重量的显着降低 。 天线系统尺寸和重量的显着降低对于在高级战术战机或空间应用中使用的宽带电子对抗系统或窄带相控阵有源天线雷达系统是非常重要的。
-
7.发明授权公开(公告)号：US10854600B2
公开(公告)日：2020-12-01
申请号：US16577629
申请日：2019-09-20
申请人： Justin Andrew Parke , Eric J. Stewart , Robert S. Howell , Howell George Henry , Bettina Nechay , Harlan Carl Cramer , Matthew Russell King , Shalini Gupta , Ronald G. Freitag , Karen Marie Renaldo
发明人： Justin Andrew Parke , Eric J. Stewart , Robert S. Howell , Howell George Henry , Bettina Nechay , Harlan Carl Cramer , Matthew Russell King , Shalini Gupta , Ronald G. Freitag , Karen Marie Renaldo
IPC分类号： H01L21/338 , H01L27/088 , H01L21/8252 , H01L21/308 , H01L29/66 , H01L29/778 , H01L27/06 , H01L29/20 , H01L29/06
摘要： A method of forming an integrated circuit can include forming a heterostructure over a substrate structure, wherein the given substrate structure comprises a given semiconductor material. The method can include etching a castellated channel region in an e-mode device area of the heterostructure that defines a plurality of ridge channels interleaved between a plurality of trenches, the ridge channels comprising another semiconductor material. The method can also include forming an isolation region on the heterostructure to electrically isolate the e-mode device area from a d-mode device area of the heterostructure. The method can further include forming a mask with an opening that defines a castellated gate opening overlying the castellated channel region and the mask defines an opening overlaying a single planar gate overlying the d-mode device area of the heterostructure. The method can also include performing a contact fill with conductive material to form a castellated gate contact.
-
公开(公告)号：US09780943B2
公开(公告)日：2017-10-03
申请号：US14941179
申请日：2015-11-13
申请人： Mark K. Yu , Ronald G. Freitag
发明人： Mark K. Yu , Ronald G. Freitag
CPC分类号： H04L5/1461 , H04B1/525 , H04B1/54
摘要： A system includes a transmitter to drive a transmission signal via a first and second transmission line. One half of the transmission signal is applied to the first transmission line and the other half of the transmission signal is applied to the second transmission line. An antenna radiates the transmission signal from the transmitter and receives a reception signal. The reception signal is driven in the opposite direction of the transmission signal on the first and second transmission lines. A plurality of differential amplifiers receive the reception signal from different sections of the first and second transmission lines and generate amplified output signals to a receiver output path having a first and second receiver transmission line. The differential amplifiers reject the one half of the transmission signal applied to the first transmission line and the other half of the transmission signal applied to the second transmission line.
-
公开(公告)号：US07728771B2
公开(公告)日：2010-06-01
申请号：US11773105
申请日：2007-07-03
申请人： Michael J. Lee , Eric V. Miller , Joseph A. Faulkner , Cynthia W. Berry , Gene A. Digennaro , Kerron R. Duncan , Ronald G. Freitag , Tapan K. Gupta , Harry V. Guy, III , Vincent G. Karasack , Dave M. Krafcsik , Brian T. McMonagle , Robert B. Middleton , Benjamin R. Myers , Mike L. Salib , John P. Vitamvas , Thomas M. Walsh , Eric D. Zirofsky , John W. Gipprich
发明人： Michael J. Lee , Eric V. Miller , Joseph A. Faulkner , Cynthia W. Berry , Gene A. Digennaro , Kerron R. Duncan , Ronald G. Freitag , Tapan K. Gupta , Harry V. Guy, III , Vincent G. Karasack , Dave M. Krafcsik , Brian T. McMonagle , Robert B. Middleton , Benjamin R. Myers , Mike L. Salib , John P. Vitamvas , Thomas M. Walsh , Eric D. Zirofsky , John W. Gipprich
IPC分类号： H01Q3/36
CPC分类号： H01Q21/0025 , H01Q13/085 , H01Q21/08
摘要： A multi-channel, dual-band, radio frequency (RF) transmit/receive (T/R) module, for an active electronically scanned array, is provided. The module includes a compact, RF manifold connector and at least four T/R channels. Each of the T/R channels includes a notch radiator, a diplexer coupled to the notch radiator, a power amplifier, including at least one dual-band gain stage, coupled to the notch radiator, a low noise amplifier, including at least one lower-band gain stage and at least one upper-band gain stage, coupled to the diplexer, and a T/R cell, including a phase shifter, a signal attenuator and at least one dual-band gain stage, coupled to the power amplifier, the low noise amplifier and the manifold connector.
摘要翻译： 提供了一种用于主动电子扫描阵列的多通道，双频，射频（RF）发射/接收（T / R）模块。 该模块包括紧凑的RF歧管连接器和至少四个T / R通道。 T / R通道中的每一个包括陷波辐射器，耦合到陷波辐射器的双工器，功率放大器，包括耦合到陷波辐射器的至少一个双频带增益级，低噪声放大器，包括至少一个下部 耦合到双工器的至少一个高频带增益级和耦合到功率放大器的T / R单元，包括移相器，信号衰减器和至少一个双频带增益级， 低噪声放大器和歧管连接器。
-
公开(公告)号：US09711615B2
公开(公告)日：2017-07-18
申请号：US15222039
申请日：2016-07-28
申请人： Bettina A. Nechay , Shalini Gupta , Matthew Russell King , Eric J. Stewart , Robert S. Howell , Justin Andrew Parke , Harlan Carl Cramer , Howell George Henry , Ronald G. Freitag , Karen Marie Renaldo
发明人： Bettina A. Nechay , Shalini Gupta , Matthew Russell King , Eric J. Stewart , Robert S. Howell , Justin Andrew Parke , Harlan Carl Cramer , Howell George Henry , Ronald G. Freitag , Karen Marie Renaldo
IPC分类号： H01L29/06 , H01L29/66 , H01L29/778 , H01L29/10 , H01L21/3065 , H01L29/205 , H01L29/20
CPC分类号： H01L29/7785 , H01L21/3065 , H01L29/0657 , H01L29/1029 , H01L29/1058 , H01L29/157 , H01L29/2003 , H01L29/205 , H01L29/66431 , H01L29/66462 , H01L29/7783
摘要： A transistor device is provided that comprises a base structure, and a superlattice structure overlying the base structure and comprising a multichannel ridge having sloping sidewalls. The multichannel ridge comprises a plurality of heterostructures that each form a channel of the multichannel ridge, wherein a parameter of at least one of the heterostructures is varied relative to other heterostructures of the plurality of heterostructures. The transistor device further comprises a three-sided gate contact that wraps around and substantially surrounds the top and sides of the multichannel ridge along at least a portion of its depth.
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.017 秒)
