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1. 发明申请

WO02103910A2 TUNABLE, DISTRIBUTED, VOLTAGE-CONTROLLED OSCILLATOR 审中-公开
标题翻译：电位分配，电压控制振荡器
公开(公告)号：WO02103910A2
公开(公告)日：2002-12-27
申请号：PCT/US0146610
申请日：2001-12-04
申请人： CALIFORNIA INST OF TECHN
发明人： HAJIMIRI SEYED-ALI , WU HUI
IPC分类号： H03B5/18 , H03L7/00
CPC分类号： H03B5/1852 , H03B5/26
摘要： Techniques and structures for tunign integrated, distributed voltage-controlled oscillators (DVCO'S) across a wide microwave frequency range are disclosed. One type of DVCO implements a tunign circuit that includes a pair of interconnected amplifying transistors and a current source connected to the transistors, such that a differential voltage input to the circuit adjusts the current to eact transistor and effectively adjusts the "eletrical lenght" of one of the transmission lines on which the output frequency is oscillating. This, in turn, adjusts the time delay and thus frequency of the signal propagating on the lines across a wide frequency band. This technique is called "current-steering." In a preferred embodiment, the tuning circuit is balanced with a complementary tuning circuit to effectively adjust the electrical lenght of the second transmission line in the oscillator. In another technique that provides for more coarse, but wider range, broadban frequency tuning, the time delay, and thus frequency, of the DVCO is adjustable by varying the capacitive loading on the transmission lines, by introducing a coupling capacitor between the transmission lines and tuning the intrinsic capacitances of the gain transistors with a dc bias input.
摘要翻译：披露了广泛的微波频率范围内的调谐集成分布式电压控制振荡器（DVCO'S）的技术和结构。一种类型的DVCO实现了一种包括一对互连的放大晶体管和连接到晶体管的电流源的调谐电路，使得输入到电路的差分电压调节电流到触发晶体管，并有效地调整一个电极的“电流长度” 的输出频率摆动的传输线。这又调整了在宽频带上在线上传播的信号的时间延迟和因此的频率。这种技术被称为“电流转向”。在优选实施例中，调谐电路与互补调谐电路平衡，以有效地调节振荡器中第二传输线的电气长度。在另一种技术中，通过在传输线路之间引入耦合电容器，通过在传输线路之间引入耦合电容器来改变DVCO的容性负载，从而可以调节DVCO的更粗略但更宽范围的宽频调谐用直流偏置输入调节增益晶体管的固有电容。

2. 发明申请

WO2004102787A2 DISTRIBUTED OSCILLATOR ARCHITECTURES 审中-公开
标题翻译：分布式振荡器架构
公开(公告)号：WO2004102787A2
公开(公告)日：2004-11-25
申请号：PCT/US2004014211
申请日：2004-05-07
申请人： CALIFORNIA INST OF TECHN , HAJIMIRI SEYED-ALI , WU HUI
发明人： HAJIMIRI SEYED-ALI , WU HUI
IPC分类号： H03B5/18 , H03B9/00
CPC分类号： H03B5/1852 , H03B5/1847
摘要： A voltage controlled oscillator is provided. The voltage controlled oscillator includes a traveling-wave amplifier having two inputs and two outputs, such as would be formed by a first transmission line having a first input and a first output and a second transmission line having a second input and a second output. The first output of the traveling-wave amplifier is connected to the first input. A delay is connected between the second output and the second input, so as to provide a voltage controlled oscillator that requires minimal power to operate.
摘要翻译：提供压控振荡器。压控振荡器包括具有两个输入和两个输出的行波放大器，例如将由具有第一输入和第一输出的第一传输线和具有第二输入和第二输出的第二传输线形成。行波放大器的第一输出端连接到第一输入端。延迟连接在第二输出和第二输入之间，以便提供需要最小功率来操作的压控振荡器。

3. 发明申请

WO03107536A2 SELF-DIVIDING OSCILLATORS 审中-公开
标题翻译：自分散振荡器
公开(公告)号：WO03107536A2
公开(公告)日：2003-12-24
申请号：PCT/US0319146
申请日：2003-06-17
申请人： CALIFORNIA INST OF TECHN , HAJIMIRI SEYED-ALI , WU HUI
发明人： HAJIMIRI SEYED-ALI , WU HUI
IPC分类号： H03B5/12 , H03B27/00 , H03L7/24 , H03L7/00
CPC分类号： H03L7/24 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B27/00
摘要： A system for generating in-phase and quadrature phase signals is provided. The system includes a first and a second differential output, such as from a sinusoidal oscillator. A first injection-locked frequency divider, such as one that uses an LC oscillator in conjunction with cross-coupled transistors, receives the first differential output and generates a in-phase or in-phase output. A second injection-locked frequency divider receives the second differential output and generates a quadrature phase output.
摘要翻译：提供了一种用于产生同相和正交相位信号的系统。该系统包括第一和第二差分输出，例如来自正弦振荡器。诸如使用LC振荡器与交叉耦合晶体管结合的第一注入锁定分频器接收第一差分输出并产生同相或同相输出。第二注入锁定分频器接收第二差分输出并产生正交相位输出。

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