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21. 发明授权

US09174413B2 Graphene based structures and methods for shielding electromagnetic radiation 有权
公开(公告)号：US09174413B2
公开(公告)日：2015-11-03
申请号：US13523178
申请日：2012-06-14
申请人： Phaedon Avouris , Alberto Valdes Garcia , Chun-Yung Sung , Fengnian Xia , Hugen Yan
发明人： Phaedon Avouris , Alberto Valdes Garcia , Chun-Yung Sung , Fengnian Xia , Hugen Yan
IPC分类号： F21V9/00 , G02B5/02 , G02C7/10 , G02F1/361 , G03B1/00 , H05K9/00 , B32B9/04 , B82Y30/00 , C23C16/00
CPC分类号： H05K9/0088 , B32B9/04 , B32B37/18 , B32B2457/00 , B82Y30/00 , H05K9/0081 , Y10T156/10
摘要： Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing highly doped graphene sheets about the object to be shielded. The highly doped graphene sheets may have a dopant concentration greater than >1e1013 cm−2, which is effective to reflect the electromagnetic radiation or a dopant concentration of 1e1013 cm−2>n>0 cm−2, which is effective to absorb the electromagnetic radiation.

22. 发明申请

US20140064653A1 ELECTRO-OPTIC MODULATOR 有权
标题翻译：电光调制器
公开(公告)号：US20140064653A1
公开(公告)日：2014-03-06
申请号：US13603971
申请日：2012-09-05
申请人： Douglas M. Gill , William M. Green , Alberto Valdes Garcia
发明人： Douglas M. Gill , William M. Green , Alberto Valdes Garcia
IPC分类号： G02F1/035
CPC分类号： G02F1/0356 , G02F1/0121
摘要： An electro-optical modulator device includes an optical signal path partially defined by a waveguide portion, a radio frequency (RF) signal path partially defined by a conductive line portion, an interaction region where an RF signal propagating in the RF signal path interacts with an optical signal propagating in the optical signal path to modulate the optical signal, and a first tuning portion arranged proximate to the conductive line portion, the first tuning portion including a conductive portion and a switch portion operative to connect the conductive portion to ground.
摘要翻译：电光调制器装置包括由波导部分部分地限定的光信号路径，由导线部分限定的射频（RF）信号路径，在RF信号路径中传播的RF信号与一个光信号在光信号路径中传播以调制光信号，以及布置在导线部分附近的第一调谐部分，第一调谐部分包括导电部分和可操作地将导电部分连接到地的开关部分。

23. 发明申请

US20140061450A1 ELECTRO-OPTIC MODULATOR 审中-公开
标题翻译：电光调制器
公开(公告)号：US20140061450A1
公开(公告)日：2014-03-06
申请号：US13611238
申请日：2012-09-12
申请人： Douglas M. Gill , William M. Green , Alberto Valdes Garcia
发明人： Douglas M. Gill , William M. Green , Alberto Valdes Garcia
IPC分类号： G01J1/04
CPC分类号： G02F1/0356 , G02F1/0121
摘要： A method for controlling an electro-optic modulator device includes measuring a performance metric of the device to define a first measured performance value, and changing a state of a first tuning portion of the device to connect the first tuning portion to ground.
摘要翻译：一种用于控制电光调制器装置的方法包括测量装置的性能度量以限定第一测量性能值，以及改变装置的第一调谐部分的状态以将第一调谐部分连接到地。

24. 发明申请

US20130082242A1 TRANSISTOR DEVICE WITH REDUCED GATE RESISTANCE 失效
公开(公告)号：US20130082242A1
公开(公告)日：2013-04-04
申请号：US13251637
申请日：2011-10-03
申请人： Shu-Jen Han , Alberto Valdes Garcia
发明人： Shu-Jen Han , Alberto Valdes Garcia
IPC分类号： H01L29/772 , H01L21/336 , H01L29/775 , B82Y99/00 , B82Y40/00
CPC分类号： H01L29/66742 , H01L29/42384 , H01L29/7781 , H01L29/78603 , H01L29/78636 , H01L29/78684
摘要： A device with reduced gate resistance includes a gate structure having a first conductive portion and a second conductive portion formed in electrical contact with the first conductive portion and extending laterally beyond the first conductive portion. The gate structure is embedded in a dielectric material and has a gate dielectric on the first conductive portion. A channel layer is provided over the first conductive portion. Source and drain electrodes are formed on opposite end portions of a channel region of the channel layer. Methods for forming a device with reduced gate resistance are also provided.

25. 发明申请

US20110114919A1 SELF-ALIGNED GRAPHENE TRANSISTOR 有权
标题翻译：自对准的石墨晶体管
公开(公告)号：US20110114919A1
公开(公告)日：2011-05-19
申请号：US12617770
申请日：2009-11-13
申请人： Keith A. Jenkins , Yu-Ming Lin , Alberto Valdes-Garcia
发明人： Keith A. Jenkins , Yu-Ming Lin , Alberto Valdes-Garcia
IPC分类号： H01L29/16 , H01L21/04
CPC分类号： H01L29/78684
摘要： A graphene field effect transistor includes a gate stack, the gate stack including a seed layer, a gate oxide formed over the seed layer, and a gate metal formed over the gate oxide; an insulating layer; and a graphene sheet displaced between the seed layer and the insulating layer.
摘要翻译：石墨烯场效应晶体管包括栅极堆叠，栅极堆叠包括种子层，形成在种子层上的栅极氧化物和形成在栅极氧化物上的栅极金属; 绝缘层; 以及在种子层和绝缘层之间移动的石墨烯片。

26. 发明申请

US20110063169A1 PHASED-ARRAY TRANSCEIVER FOR MILLIMETER-WAVE FREQUENCIES 有权
标题翻译：毫米波频率的同步阵列收发器
公开(公告)号：US20110063169A1
公开(公告)日：2011-03-17
申请号：US12750242
申请日：2010-03-30
申请人： PING-YU CHEN , Brian A. Floyd , Jie-Wei Lai , Arun S. Natarajan , Sean T. Nicolson , Scott K. Reynolds , Ming-Dai Tsai , Alberto Valdes-Garcia , Jing-Hong C. Zhan
发明人： PING-YU CHEN , Brian A. Floyd , Jie-Wei Lai , Arun S. Natarajan , Sean T. Nicolson , Scott K. Reynolds , Ming-Dai Tsai , Alberto Valdes-Garcia , Jing-Hong C. Zhan
IPC分类号： H01Q3/00
CPC分类号： H01Q3/2694 , H01Q3/267
摘要： A phased-array transmitter and receiver that may be effectively implemented on a silicon substrate. The transmitter distributes to front-ends, and the receiver combines signals from front-ends, using a power distribution/combination tree that employs both passive and active elements. By monitoring the power inputs and outputs, a digital control is able to rapidly provide phase and gain correction information to the front-ends. Such a transmitter/receiver includes a plurality of radio frequency (RF) front-ends and a power splitting/combining network that includes active and passive components configured to distribute signals to/from the front-ends.
摘要翻译：可以有效地在硅衬底上实现的相控阵发射器和接收器。发射机分配到前端，并且接收器使用采用被动和有源元件的功率分配/组合树组合来自前端的信号。通过监控功率输入和输出，数字控制能够快速向前端提供相位和增益校正信息。这样的发射机/接收机包括多个射频（RF）前端和功率分配/组合网络，其包括配置成向/从前端分配信号的有源和无源组件。

27. 发明授权

US07199658B2 Circuits and methods for implementing power amplifiers for millimeter wave applications 有权
标题翻译：用于实现毫米波应用的功率放大器的电路和方法
公开(公告)号：US07199658B2
公开(公告)日：2007-04-03
申请号：US11131534
申请日：2005-05-18
申请人： Brian A. Floyd , Alberto Valdes Garcia , Ullrich R. Pfeiffer , Scott Kevin Reynolds
发明人： Brian A. Floyd , Alberto Valdes Garcia , Ullrich R. Pfeiffer , Scott Kevin Reynolds
IPC分类号： H03F3/217
CPC分类号： H03F3/2176 , H03F2200/222 , H03F2200/318 , H03F2200/411 , H03F2200/451 , H03F2200/75
摘要： Circuits and methods are provided for implementing highly efficient switch-mode power amplifiers using BJTs (bipolar junction transistors) as active switching devices at millimeter-wave frequencies. More specifically, circuits and methods are provided for driving power amplifiers with BJT switching devices to achieve highly efficient switch-mode (e.g., Class E) operation at millimeter wave frequencies (e.g., 60 GHz).
摘要翻译：提供了使用BJT（双极结型晶体管）作为毫米波频率的有源开关器件实现高效开关模式功率放大器的电路和方法。更具体地，提供电路和方法来驱动具有BJT开关器件的功率放大器，以实现在毫米波频率（例如，60GHz）下的高效开关模式（例如E类）操作。

28. 发明授权

US08642997B2 Transistor device with reduced gate resistance 有权
标题翻译：具有降低栅极电阻的晶体管器件
公开(公告)号：US08642997B2
公开(公告)日：2014-02-04
申请号：US13610381
申请日：2012-09-11
申请人： Shu-Jen Han , Alberto Valdes Garcia
发明人： Shu-Jen Han , Alberto Valdes Garcia
IPC分类号： H01L29/775
CPC分类号： H01L29/66742 , H01L29/42384 , H01L29/7781 , H01L29/78603 , H01L29/78636 , H01L29/78684
摘要： A device with reduced gate resistance includes a gate structure having a first conductive portion and a second conductive portion formed in electrical contact with the first conductive portion and extending laterally beyond the first conductive portion. The gate structure is embedded in a dielectric material and has a gate dielectric on the first conductive portion. A channel layer is provided over the first conductive portion. Source and drain electrodes are formed on opposite end portions of a channel region of the channel layer. Methods for forming a device with reduced gate resistance are also provided.
摘要翻译：具有降低的栅极电阻的器件包括具有第一导电部分和形成为与第一导电部分电接触并且横向延伸超过第一导电部分延伸的第二导电部分的栅极结构。栅极结构嵌入电介质材料中，并且在第一导电部分上具有栅极电介质。沟道层设置在第一导电部分上。源极和漏极形成在沟道层的沟道区的相对端部上。还提供了形成栅极电阻降低的器件的方法。

29. 发明申请

US20120299632A1 SIMULTANEOUS SIGNAL INPUT MATCHING AND LINEARIZATION 审中-公开
标题翻译：同步信号输入匹配和线性化
公开(公告)号：US20120299632A1
公开(公告)日：2012-11-29
申请号：US13278367
申请日：2011-10-21
申请人： Mihai A. T. Sanduleanu , Alberto Valdes Garcia
发明人： Mihai A. T. Sanduleanu , Alberto Valdes Garcia
IPC分类号： G06G7/12
CPC分类号： H03H11/30 , H03F1/3211 , H03F3/45183 , H03F2203/45352 , H03F2203/45466 , H03F2203/45576
摘要： An amplifier, mixer, and method for input impedance matching and linearization. The transconductor includes a first differential transistor and a second differential transistor, including a first differential source and a second differential source electrically connected at a source node. The transconductor includes a pair of transmission lines including a first line of the pair of transmission lines electrically connected to the first of the two differential voltage inputs and a second line of the pair of transmission lines electrically connected to the second of the two differential voltage inputs. The pair of transmission lines is electrically connecting the two differential voltage inputs at a common node. The transconductor also includes a linearization unit including one or more linearization transistors. The one or more linearization transistors include a linearization gate electrically connected to the common node. The linearization unit is configured to supply a virtual ground at the source node.
摘要翻译：一种用于输入阻抗匹配和线性化的放大器，混频器和方法。跨导体包括第一差分晶体管和第二差分晶体管，包括在源节点电连接的第一差分源和第二差分源。跨导体包括一对传输线，包括电连接到两个差分电压输入中的第一个的一对传输线中的第一条线，以及电连接到两个差分电压输入中的第二个的一对传输线的第二条线。一对传输线在公共节点处电连接两个差分电压输入。跨导体还包括包括一个或多个线性化晶体管的线性化单元。一个或多个线性化晶体管包括电连接到公共节点的线性化栅极。线性化单元被配置为在源节点处提供虚拟接地。

30. 发明申请

US20120206299A1 MILLIMETER-WAVE COMMUNICATIONS USING A REFLECTOR 有权
标题翻译：使用反射器的毫米波通信
公开(公告)号：US20120206299A1
公开(公告)日：2012-08-16
申请号：US13024881
申请日：2011-02-10
申请人： Alberto Valdes-Garcia
发明人： Alberto Valdes-Garcia
IPC分类号： H01Q15/00 , H04B7/14 , H01Q15/20
CPC分类号： H04B7/145 , H01Q1/007 , H01Q3/20 , H01Q3/26 , H01Q19/102 , H01Q19/104
摘要： Methods and systems for establishing a non-line of sight millimeter wave connection that include a transmitter unit having beam-steering capability, a receiver unit having beam-steering capability, and a reflecting unit in a position having a line-of-sight path to the transmitter unit and the receiver unit. The reflecting unit includes an attachment mechanism configured to attach to a mounting point on an object or surface, a reflecting surface that is reflective to millimeter-wave radiation, and an adjustable pivot connected between the attachment mechanism and the reflecting surface configured to permit directional positioning of the reflecting surface relative to the attachment mechanism.
摘要翻译：用于建立非线视距毫米波连接的方法和系统，其包括具有光束转向能力的发射器单元，具有光束转向能力的接收器单元和在具有视线路径的位置的位置的反射单元发射机单元和接收机单元。反射单元包括被配置为附接到物体或表面上的安装点，反射于毫米波辐射的反射表面的连接机构，以及连接在附接机构和反射表面之间的可调节枢轴，其被配置成允许定向定位的反射表面相对于附接机构。

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