公开(公告)号：US20020146992A1

公开(公告)日：2002-10-10

申请号：US09827625

申请日：2001-04-06

申请人： Koninklijke Philips Electronics N.V.

发明人： Abolfazl Khosrowbeygi

IPC分类号： H04B001/04

CPC分类号： H04B1/04 ,  H03F1/02 ,  H03F3/24 ,  H03F3/45089 ,  H04B2001/045

摘要： A dynamic biasing of a transmitter chip is disclosed. The transmitter chip comprises a variable gain amplifying stage, a biasing stage, a phase shifting stage, and a mixing stage. In response to a voltage control signal and a voltage intermediate frequency signal, the variable gain amplifying stage provides a current drive signal and a DC current control signal. While an ampere level of the DC component of the current drive signal and an ampere level of the DC current control signal vary as a function of any variations in the voltage control signal as well as any variation in the temperature, process performance, and supply power of the transmitter chip, a ratio of the ampere level of a DC component of the current drive signal to the ampere level of the DC current control signal is constant. The current drive signal and the DC current control signal establish the dynamic biasing block in a current mode of operation that maintains a constant gain of the mixing stage.

摘要翻译： 公开了一种发射机芯片的动态偏置。 发射机芯片包括可变增益放大级，偏置级，相移级和混频级。 响应于电压控制信号和电压中频信号，可变增益放大级提供电流驱动信号和直流电流控制信号。 当电流驱动信号的DC分量的安培电平和DC电流控制信号的安培电平作为电压控制信号的任何变化以及温度，过程性能和电源的任何变化的函数而变化 发射机芯片的电流驱动信号的直流分量的安培电平与直流电流控制信号的安培电平的比率是恒定的。 当前驱动信号和直流电流控制信号在当前的操作模式下建立动态偏置块，其保持混合级的恒定增益。

公开(公告)号：US20020146991A1

公开(公告)日：2002-10-10

申请号：US09829105

申请日：2001-04-09

申请人： Koninklijke Philips Electronics N.V.

发明人： Abolfazl Khosrowbeygi ,  Petrus M. Stroet

IPC分类号： H04B001/04

CPC分类号： H03D7/1425 ,  H03D7/1433 ,  H03D7/1491 ,  H03D2200/0023 ,  H03D2200/0033 ,  H03D2200/0043

摘要： A power mixer architecture for a transmitter chip is disclosed. The power mixer architecture is a mixing stage including one or more upper trees, and one or more lower trees. Each lower tree is selectively activated to receive current biasing signals, and current intermediate frequency signals. Upon receipt, the activated lower tree activates a corresponding upper tree to receive one or more amplified current intermediate frequency signals from the lower tree. In conjunction with a reception of voltage local oscillating signals, the upper tree provides voltage radio frequency signals. The gain of the lower tree is designed to be constant over any variance in a temperature, supply voltage or processing performance of the transmitter chip.

摘要翻译： 公开了用于发射机芯片的功率混频器架构。 动力混合器结构是混合阶段，包括一个或多个上部树木，以及一个或多个较低的树木。 选择性地激活每个下层树以接收电流偏置信号和当前的中频信号。 在接收到时，激活的下层树启动相应的上层树，以从下层树接收一个或多个放大的当前中频信号。 结合接收电压本地振荡信号，上层树提供电压射频信号。 下层树的增益被设计为在发射器芯片的温度，电源电压或处理性能的任何变化上都是恒定的。