公开(公告)号：AU2001243384B2

公开(公告)日：2006-09-14

申请号：AU2001243384

申请日：2001-03-02

Applicant: QUALCOMM INC

Inventor： LIN JIAN ,  WILBORN THOMAS ,  SIMIC EMILIJA ,  FILIPOVIC DANIEL ,  ZHANG HAITAO ,  YOUNIS SAED ,  KAUFMAN RALPH

IPC: H03G3/30 ,  H04B1/04 ,  H03G3/20 ,  H04B7/005 ,  H04B7/24

Abstract: Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption, lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated. A gain control mechanism allows for accurate adjustment of the output transmit power level. Control mechanisms are provided to power down the power amplifier, or th e entire transmit signal path, when not needed. The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.

公开(公告)号：BR0108969A

公开(公告)日：2006-05-09

申请号：BR0108969

申请日：2001-03-02

Applicant: QUALCOMM INC

Inventor： YOUNIS SAED ,  SIMIC EMILIJA ,  WILBORN THOMAS ,  ZHANG HAITAO ,  FILIPOVIC DANIEL ,  KAUFMAN RALPH ,  LIN JIAN

IPC: H04B1/04 ,  H03G3/20 ,  H03G3/30 ,  H04B7/005 ,  H04B7/24

Abstract: Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption, lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated. A gain control mechanism allows for accurate adjustment of the output transmit power level. Control mechanisms are provided to power down the power amplifier, or th e entire transmit signal path, when not needed. The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.

公开(公告)号：HK1060404A1

公开(公告)日：2004-08-06

申请号：HK04103282

申请日：2004-05-11

Applicant: QUALCOMM INC

Inventor： YOUNIS SAED ,  SIMIC EMILIJA ,  WILBORN THOMAS ,  ZHANG HAITAO ,  FILIPOVIC DANIEL ,  KAUFMAN RALPH ,  LIN JIAN

IPC: H03G20060101 ,  H03G3/20 ,  H04B1/04 ,  H03G3/30 ,  H04B7/005 ,  H04B7/24

Abstract: Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption, lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated. A gain control mechanism allows for accurate adjustment of the output transmit power level. Control mechanisms are provided to power down the power amplifier, or th e entire transmit signal path, when not needed. The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.

公开(公告)号：AU4338401A

公开(公告)日：2001-09-17

申请号：AU4338401

申请日：2001-03-02

Applicant: QUALCOMM INC

Inventor： YOUNIS SAED ,  SIMIC EMILIJA ,  WILBORN THOMAS ,  ZHANG HAITAO ,  FILIPOVIC DANIEL ,  KAUFMAN RALPH ,  LIN JIAN

IPC: H04B1/04 ,  H03G3/20 ,  H03G3/30 ,  H04B7/005 ,  H04B7/24

Abstract: Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption, lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated. A gain control mechanism allows for accurate adjustment of the output transmit power level. Control mechanisms are provided to power down the power amplifier, or th e entire transmit signal path, when not needed. The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.

公开(公告)号：CA2702881A1

公开(公告)日：2001-09-13

申请号：CA2702881

申请日：2001-03-02

Applicant: QUALCOMM INC

Inventor： YOUNIS SAED ,  SIMIC EMILIJA ,  WILBORN THOMAS ,  ZHANG HAITAO ,  FILIPOVIC DANIEL ,  KAUFMAN RALPH ,  LIN MING JASON YU

IPC: H04B1/04 ,  H03G3/20 ,  H03G3/30 ,  H04B7/005 ,  H04B7/24 ,  H04W88/02

Abstract: Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption, lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated. A gain control mechanism allows for accurate adjustment of the output transmit power level. Control mechanisms are provided to power down the power amplifier, or th e entire transmit signal path, when not needed. The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.

公开(公告)号：AU6939000A

公开(公告)日：2001-03-26

申请号：AU6939000

申请日：2000-08-25

Applicant: QUALCOMM INC

Inventor： KAUFMAN RALPH ,  LARSON JAMES

IPC: H03B5/12

公开(公告)号：CA2345089A1

公开(公告)日：2000-03-30

申请号：CA2345089

申请日：1999-09-22

Applicant: QUALCOMM INC

Inventor： KAUFMAN RALPH ,  HUNZEKER DARIN ,  CAMARILLO RICHARD J

IPC: H03F3/24 ,  H03F1/02 ,  H03F3/60 ,  H03F3/72 ,  H03G1/00 ,  H04B1/04 ,  H04Q7/32

Abstract: A power amplifier circuit arrangement including a driver amplifier, a switch , an amplifier path having a band pass filter and a power amplifier, and a bypass path which bypasses the power amplifier when excess gain and output power are not needed. When an RF-analog signal from the driver amplifier is switched to the amplifier path, the signal is band-pass filtered and amplified. Then the signal is split into an in-phase and a quadrature signal . Either the in-phase or the quadrature signal is inverted and summed with the other of the in-phase or quadrature signal, and the summed signal is transmitted to an output port. When the RF-signal from the driver amplified is switched to the bypass path, the power amplifier is turned off and the bypas s path directs the signal to the output of the power amplifier, which appears as a high impedance to the signal. The signal reflects off the power amplifier to the output port.

公开(公告)号：WO0117099A9

公开(公告)日：2002-09-06

申请号：PCT/US0023419

申请日：2000-08-25

Applicant: QUALCOMM INC

Inventor： KAUFMAN RALPH ,  LARSON JAMES

IPC: H03B5/12

CPC classification number: H03B5/1231 ,  H03B5/1215 ,  H03B5/1243

Abstract: Tank circuits that can support multiple frequency bands and have good RF performance. The tank circuit can be used for oscillators, filters, and other applications. The tank circuit includes the elements normally associated with the particular application. For example, the tank circuit for an oscillator typically includes one or more of varactor (320a, 320b), capacitor (324a, 324b), inductor (326a, 326b), and biasing and filtering elements. The tank circuit further includes an additional reactive element (336a, 336b) coupled via switching means to either the capacitor or inductor. The additional reactive element (336a, 336b) and switching means (342, 334a, 334b) are selected to provide the desired circuit characteristics and good RF performance. In a specific implementation, an additional inductor (336a) is coupled, via a pin diode (334a), in parallel with the other inductor (326a).

Abstract translation: 坦克电路可以支持多个频段，并具有良好的射频性能。 储能电路可用于振荡器，滤波器和其他应用。 储罐回路包括通常与特定应用相关联的元件。 例如，用于振荡器的振荡电路通常包括变容二极管（320a，320b），电容器（324a，324b），电感器（326a，326b）和偏置和滤波元件中的一个或多个。 储能电路还包括通过开关装置耦合到电容器或电感器的附加电抗元件（336a，336b）。 选择附加电抗元件（336a，336b）和开关装置（342，334a，334b）以提供期望的电路特性和良好的RF性能。 在具体实现中，附加电感器（336a）经由pin二极管（334a）与另一个电感器（326a）并联耦合。

公开(公告)号：WO0167621A3

公开(公告)日：2002-05-02

申请号：PCT/US0106740

申请日：2001-03-02

Applicant: QUALCOMM INC

Inventor： YOUNIS SAED ,  SIMIC EMILIJA ,  WILBORN THOMAS ,  ZHANG HAITAO ,  FILIPOVIC DANIEL ,  KAUFMAN RALPH ,  LIN JIAN

IPC: H04B1/04 ,  H03G3/20 ,  H03G3/30 ,  H04B7/005 ,  H04B7/24

CPC classification number: H03G3/3042 ,  H03F2203/7239 ,  H03G1/0088

Abstract: Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption, lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated. A gain control mechanism allows for accurate adjustment of the output transmit power level. Control mechanisms are provided to power down the power amplifier, or th e entire transmit signal path, when not needed. The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.

Abstract translation: 用于具有比传统发射机架构更好的性能的通信系统的发射机架构。 这些改进包括以下组合：控制信号的响应时间更快，线性度更好，干扰减少，功耗降低，电路复杂度降低，成本降低。 对于蜂窝应用，这些改进可以导致系统容量增加，电话尺寸更小，通话和待机时间增加，以及对产品的更多接受。 提供电路以加快控制信号的响应时间。 发送信号路径中的各种元件的控制回路被集成。 增益控制机制允许精确调整输出发射功率电平。 提供控制机制以在不需要时将功率放大器或全部发射信号路径断电。 控制发射信号路径中的各种元件的增益以减少输出发射功率的瞬变，并且还确保瞬变向下。