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31. 发明申请

US20100201456A1 COMBINED MATCHING AND FILTER CIRCUIT 有权
标题翻译：组合匹配和滤波电路
公开(公告)号：US20100201456A1
公开(公告)日：2010-08-12
申请号：US12701837
申请日：2010-02-08
申请人： Peter Onno , Rajanish , Nitin Jain , Christopher D. Weigand
发明人： Peter Onno , Rajanish , Nitin Jain , Christopher D. Weigand
IPC分类号： H03H7/38
CPC分类号： H03H7/1758 , H03H7/0115 , H03H7/0123 , H03H7/1766 , H03H7/1783 , H03H7/1791 , H03H7/38 , H03H2001/0064 , H03H2001/0078
摘要： A combined matching and harmonic rejection circuit with increased harmonic rejection provided by a split resonance for one or more of the capacitive or inductive elements of the circuit. At a fundamental frequency, the circuit comprises an inductive series arm with capacitive shunt arms. The capacitance of a shunt arm may be provided by two or more parallel paths, each having a capacitor and an inductor in series so that, in addition to providing the effective capacitance necessary for impedance matching at the fundamental frequency, two separate harmonics represented by the series resonances of the parallel paths are rejected. In this manner, an extra null in the circuit's stop-band may be achieved using the same number of shunt elements necessary to achieve impedance matching at the fundamental frequency.
摘要翻译：一种组合匹配和谐波抑制电路，其具有由电路的一个或多个电容或电感元件的分裂谐振提供的增加的谐波抑制电路。在基频处，电路包括具有电容分流臂的感应串联臂。分流臂的电容可以由两个或更多个并联路径提供，每个并联路径具有串联的电容器和电感器，使得除了提供在基频处的阻抗匹配所需的有效电容之外，由并行路径的串联谐振被拒绝。以这种方式，可以使用在基频实现阻抗匹配所需的相同数量的并联元件来实现电路的阻带中的额外零点。

32. 发明授权

US07389359B2 Method and system for intelligently forwarding multicast packets 有权
标题翻译：智能转发组播报文的方法和系统
公开(公告)号：US07389359B2
公开(公告)日：2008-06-17
申请号：US09982106
申请日：2001-10-19
申请人： Nitin Jain , Lee Chen , Earl Ferguson , Min Zhu
发明人： Nitin Jain , Lee Chen , Earl Ferguson , Min Zhu
IPC分类号： G06F15/173
CPC分类号： H04L12/1886
摘要： A routing system utilizes a layer 2 switch interconnecting several routers to intelligently forward multicast packets throughout an internet exchange carrying multicast content. The layer 2 switch performs protocol snooping to extract a lookup key that is based on network layer protocol information. The lookup key is uniquely formulated to support either shared or explicit source distribution trees. The lookup key is used to query a forwarding memory that returns an outgoing port index. The outgoing port index points to one or more outgoing ports that are eligible to receive the multicast packet. The outgoing ports are also connected to the neighboring device(s) that are designated to receive the multicast packet. The routing system also supports real time maintenance and updating of the forwarding memory based on the periodic exchange of control messages. The routing system is configured to support PIM routers operating in PIM SM or PIM SSM modes. However, the routing system can also support other multicast protocols and/or standards.
摘要翻译：路由系统利用互连多个路由器的层2交换机来在承载多播内容的互联网交换机中智能地转发多播分组。第二层交换机执行协议侦听，提取基于网络层协议信息的查找密钥。查找密钥是独一无二的，用于支持共享或明确的源分发树。查询键用于查询返回出站端口索引的转发内存。出站端口索引指向一个或多个有资格接收组播数据包的输出端口。输出端口也连接到被指定为接收多播分组的相邻设备。路由系统还支持基于控制消息的周期性交换的转发存储器的实时维护和更新。路由系统配置为支持以PIM SM或PIM SSM模式运行的PIM路由器。然而，路由系统还可以支持其他多播协议和/或标准。

33. 发明授权

US06998935B2 Switch matrix 失效
标题翻译：开关矩阵
公开(公告)号：US06998935B2
公开(公告)日：2006-02-14
申请号：US10369434
申请日：2003-02-19
申请人： Nitin Jain , Jean-Pierre Lanteri , Noyan Kinayman
发明人： Nitin Jain , Jean-Pierre Lanteri , Noyan Kinayman
IPC分类号： H01P1/10
CPC分类号： H03K17/6874 , H01P1/15 , H03K17/693
摘要： A switch matrix including a plurality of microstrip pairs arranged to form a grid and switches to couple the microstrip pairs where they cross. Each microstrip pair includes a first microstrip and a second microstrip for passing signals. The signals on the first and second microstrips are such that the electromagnetic forces produced by each one are canceled out by the other. By canceling out the electromagnetic forces, undesirable coupling between microstrips that cross and between microstrips and the substrate are minimized, thereby allowing inexpensive substrates such as silicon to be used.
摘要翻译：一种开关矩阵，包括布置成形成栅格的多个微带对，并且切换到将它们交叉的微带对耦合。每个微带对包括用于传递信号的第一微带和第二微带。第一和第二微带上的信号使得由每一个产生的电磁力被另一个消除。通过消除电磁力，使得在微带和基板之间交叉的微带之间的不期望的耦合被最小化，从而允许使用廉价的基板例如硅。

34. 发明授权

US06924714B2 High power termination for radio frequency (RF) circuits 有权
标题翻译：射频（RF）电路的大功率终端
公开(公告)号：US06924714B2
公开(公告)日：2005-08-02
申请号：US10438723
申请日：2003-05-14
申请人： Nitin Jain
发明人： Nitin Jain
IPC分类号： H01P1/24 , H01P1/26 , H01P5/12
CPC分类号： H01P1/24 , H01P1/268
摘要： In an embodiment, a termination for a transmission line (or high frequency circuit) includes a matching circuit which provides a matching impedance for the transmission line and an electrical connection between the two, e.g., a bond wire. The electrical connection has a reactance matrix, which, when combined with the impedance provided by the matching circuit, provides a resultant termination resistance.
摘要翻译：在一个实施例中，传输线（或高频电路）的终端包括匹配电路，其提供用于传输线的匹配阻抗以及两者之间的电连接，例如接合线。电气连接具有电抗矩阵，当与匹配电路提供的阻抗相结合时，提供结果终端电阻。

35. 发明授权

US06903623B2 High isolation switch in balanced lines 有权
标题翻译：平衡线上高隔离开关
公开(公告)号：US06903623B2
公开(公告)日：2005-06-07
申请号：US10458538
申请日：2003-06-09
申请人： Nitin Jain
发明人： Nitin Jain
IPC分类号： H01P1/15 , H01P5/12
CPC分类号： H01P1/15
摘要： A balanced line switching apparatus that provides high isolation at an expense of a marginal increase of loss. Practical implementation can give as much as 40 dB isolation in a single stage.
摘要翻译：平衡线路开关装置，以牺牲边际损耗增加为代价提供高隔离度。实际实现可以在单个阶段中提供高达40 dB的隔离度。

36. 发明授权

US06646526B2 Surface mountable microwave filter configuration and method of fabricating same 失效
标题翻译：表面贴装微波滤波器配置及其制造方法
公开(公告)号：US06646526B2
公开(公告)日：2003-11-11
申请号：US10099008
申请日：2002-03-14
申请人： Noyan Kinayman , Eswarappa Channabasappa , Allan Buckle , Nitin Jain
发明人： Noyan Kinayman , Eswarappa Channabasappa , Allan Buckle , Nitin Jain
IPC分类号： H01P100
CPC分类号： H01P1/2088
摘要： A surface-mountable millimeter-wave waveguide filter is constructed using irises in a rectangular waveguide formed in a dielectric material such as glass. The filter structure is surface-mountable, has a single dielectric layer, and can be manufactured using a suitable monolithic microwave integrated circuit (MMIC) process. The filter has potential applications in millimeter-wave systems such as Local Multipoint Distribution System (LMDS) and Autonomous Cruise Control (ACC) radar for automobiles.
摘要翻译：表面安装的毫米波导波导滤波器使用在诸如玻璃的介电材料中形成的矩形波导中的虹膜来构造。滤波器结构是可表面安装的，具有单个电介质层，并且可以使用合适的单片微波集成电路（MMIC）工艺制造。该滤波器在毫米波系统中具有潜在的应用，例如汽车的局部多点分配系统（LMDS）和自动巡航控制（ACC）雷达。

37. 发明授权

US06642819B1 Method and bend structure for reducing transmission line bend loss 有权
标题翻译：减少传输线弯曲损耗的方法和弯曲结构
公开(公告)号：US06642819B1
公开(公告)日：2003-11-04
申请号：US10081477
申请日：2002-02-21
申请人： Nitin Jain , Nenad Djapic
发明人： Nitin Jain , Nenad Djapic
IPC分类号： H01P308
CPC分类号： H01P5/185 , H01P1/02
摘要： A dielectric transmission line bend structure includes an electrically conductive strip that forms a bend (e.g., a right angle bend). The inner edge of the bend includes a plurality of curved and/or straight line segments that result in the inner edge extending along a circuitous path in order to thereby reduce transmission line loss. A T-type junction includes a first or left side inner edge bending to the left and a second or right side inner edge bending to the right, with both inner edges including segments that result in greater inner edge lengths in order to increase current path lengths along the inner edges and thereby help reduce transmission line loss. A method of designing a transmission line bend structure includes the step of providing a preliminary bend structure design having an electrically conductive strip with at least one inner edge extending along a circuitous path between first and second inner edge end points on the strip. The method proceeds by producing simulation information indicative of transmission line loss characteristics of the preliminary bend structure design, and adjusting the length of the circuitous path according to the simulation information in order to produce an final design having improved transmission line loss characteristics.
摘要翻译：电介质传输线弯曲结构包括形成弯曲（例如，直角弯曲）的导电条。弯曲的内边缘包括多个弯曲和/或直线段，其导致沿着迂回路径延伸的内边缘，从而减少传输线损耗。 T型接头包括向左弯曲的第一或左侧内边缘和向右弯曲的第二或右侧内边缘，两个内边缘包括导致较大内边缘长度的段，以增加电流路径长度沿着内边缘，从而有助于减少传输线损耗。一种设计传输线弯曲结构的方法包括提供具有导电条带的预弯曲结构设计的步骤，所述导电条带具有至少一个沿边缘上的第一和第二内边缘端点之间的迂回路径延伸的内边缘。该方法通过产生指示预弯曲结构设计的传输线损耗特性的模拟信息，并根据仿真信息调整迂回路径的长度，以便产生具有改善的传输线损耗特性的最终设计。

38. 发明授权

US06621385B1 Bias feed network arrangement for balanced lines 失效
标题翻译：用于平衡线路的偏置馈线网络布置
公开(公告)号：US06621385B1
公开(公告)日：2003-09-16
申请号：US10116091
申请日：2002-04-03
申请人： Nitin Jain
发明人： Nitin Jain
IPC分类号： H01P306
CPC分类号： H01P1/2007
摘要： A circuit configuration for introducing bias in balanced lines capable of high frequency operation includes top and bottom layers formed on a semiconductor substrate. The circuit includes two balanced metallized lines positioned on the substrate. Each metallized line has a serpentine line configuration connected thereto. The space between the lines is a virtual ground. The serpentine line configurations are congruent with the elements on the substrate layers to provide a completed circuit. The elements are coupled to a central metallic area, which in turn is coupled to a bias line through an open-line stub, which extends beyond the virtual ground and which provides equal capacitive coupling to the balanced lines on the top surface. In this manner, the balanced line configuration includes capacitors and inductors which are symmetrically distributed and which provide resonance at the designed operating frequency. The bias line thus formed is RF grounded due to the virtual ground and is disconnected from the actual balanced lines.
摘要翻译：用于在能够高频操作的平衡线中引入偏压的电路配置包括形成在半导体衬底上的顶层和底层。电路包括位于基板上的两个平衡的金属化线。每个金属化线具有与其连接的蛇形线配置。线之间的空间是一个虚拟的地面。蜿蜒线构造与衬底层上的元件一致以提供完整的电路。这些元件耦合到中心金属区域，中心金属区域又通过开路短截线耦合到偏置线，该开口线短截线延伸超出虚拟接地并且提供与顶表面上的平衡线路相等的电容耦合。以这种方式，平衡线路配置包括对称分布并且在设计的工作频率下提供谐振的电容器和电感器。由此形成的偏置线由于虚拟地而被RF接地，并与实际平衡线断开。

39. 发明授权

US5877037A Process for reducing bond resistance in semiconductor devices and circuits 失效
标题翻译：用于降低半导体器件和电路中的结合电阻的工艺
公开(公告)号：US5877037A
公开(公告)日：1999-03-02
申请号：US640290
申请日：1996-07-22
申请人： Matthew F. O'Keefe , Joel L. Goodrich , Donald Cordeiro , Nitin Jain
发明人： Matthew F. O'Keefe , Joel L. Goodrich , Donald Cordeiro , Nitin Jain
IPC分类号： H01L23/29 , H01L23/552 , H01L21/00
CPC分类号： H01L23/552 , H01L23/29 , H01L24/48 , H01L2224/05599 , H01L2224/48091 , H01L2224/48227 , H01L2224/48465 , H01L2924/00014 , H01L2924/01006 , H01L2924/01007 , H01L2924/01013 , H01L2924/01014 , H01L2924/01015 , H01L2924/01018 , H01L2924/01022 , H01L2924/01027 , H01L2924/01029 , H01L2924/01033 , H01L2924/01047 , H01L2924/01078 , H01L2924/01079 , H01L2924/10157 , H01L2924/12036 , H01L2924/14 , H01L2924/15153 , H01L2924/1517
摘要： It has been identified that a known loss mechanism in the access path to a mesa type device is more significant than previously believed. The source of the loss is due to the electromagnetic interaction of the wire bond and the device side wall which induces an image current at the side wall along the path of the wire bond. According to the teachings of the present invention, a process for forming a conductive coating on a semiconductor device is disclosed. The coating reduces high frequency losses associated with the device. The processes disclosed are compatible with existing semiconductor fabrication devices and advantageously provide improved uniformity and repeatability.
摘要翻译：已经确定在台面式装置的通路中已知的损失机制比先前认为的更为显着。损耗的原因是由于引线键合和器件侧壁的电磁相互作用引起沿着引线键合路径的侧壁上的图像电流。根据本发明的教导，公开了一种在半导体器件上形成导电涂层的工艺。涂层减少了与设备相关的高频损耗。所公开的方法与现有的半导体制造装置兼容，并且有利地提供改进的均匀性和重复性。

40. 发明授权

US5107152A Control component for a three-electrode device 失效
标题翻译：三电极器件的控制元件
公开(公告)号：US5107152A
公开(公告)日：1992-04-21
申请号：US404651
申请日：1989-09-08
申请人： Nitin Jain , Ronald J. Gutmann , David Fryklund
发明人： Nitin Jain , Ronald J. Gutmann , David Fryklund
IPC分类号： H01L27/06 , H01L21/8232 , H03F3/72 , H03K17/16 , H03K17/687
CPC分类号： H03K17/687 , H03K17/162
摘要： A gate biasing circuit including a Schottky barrier diode in series with an ion implanted resistor for use with a baseband MMIC control components such as an MESFET. The diode gate biasing scheme improves the low frequency distortion characteristics of GaAs MESFET control components significantly, allowing microwave power handling and distortion characteristics to be maintained below 100 Hz.
摘要翻译：栅极偏置电路，其包括与离子注入电阻器串联的肖特基势垒二极管，用于与诸如MESFET的基带MMIC控制部件一起使用。二极管栅极偏置方案显着提高了GaAs MESFET控制元件的低频失真特性，允许微波功率处理和失真特性保持在100Hz以下。

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