公开(公告)号：US20060057999A1

公开(公告)日：2006-03-16

申请号：US11167528

申请日：2005-06-27

申请人： Arya Behzad ,  C. Lee

发明人： Arya Behzad ,  C. Lee

IPC分类号： H04B1/26 ,  H04B15/00

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0025 ,  H03D2200/0047

摘要： An offset cancellation scheme in which offset cancellation current is sourced into one differential branch of a driver circuit and sinked from the opposite differential branch. The source/sink arrangement allows for offset cancellation current to be introduced into the circuit, but the overall total average current remains substantially unchanged. When used in an I and Q mixer circuits, the offsets may be canceled without generating an I/Q imbalance in the I and Q mixers.

公开(公告)号：US20060236188A1

公开(公告)日：2006-10-19

申请号：US11180341

申请日：2005-07-13

申请人： Arya Behzad ,  Adedayo Ojo ,  C. Lee

发明人： Arya Behzad ,  Adedayo Ojo ,  C. Lee

IPC分类号： H04L1/00 ,  H03M13/00 ,  G08C25/00 ,  G06F11/00 ,  G06F11/30

CPC分类号： H04W88/02 ,  H04W24/08 ,  H04W88/06

摘要： A radio frequency (RF) transmission correction module includes an RF transmission error detection module and a correction module. The error detection module includes an RF envelope detector, a signal conversion module, and an error detection module. The RF envelope detector is operably coupled to produce an envelope signal from a transmit RF signal, wherein the envelope signal represents at least one of local oscillation leakage and in-phase (I) and quadrature (Q) imbalance. The signal conversion module is operably coupled to convert the envelope signal into an error signal in accordance with baseband processing of the transmit RF signal. The error detection module is operably coupled to determine at least one of a local oscillation leakage value and an I and Q imbalance value from the error signal. The correction module is operably coupled to produce at least one of a local oscillation leakage correction signal and an I and Q imbalance correction signal based on the at least one of the local oscillation leakage value and the I and Q imbalance value, respectively.

摘要翻译： 射频（RF）传输校正模块包括RF传输错误检测模块和校正模块。 误差检测模块包括RF包络检测器，信号转换模块和错误检测模块。 RF包络检测器可操作地耦合以产生来自发射RF信号的包络信号，其中包络信号表示局部振荡泄漏和同相（I）和正交（Q）不平衡中的至少一个。 信号转换模块可操作地耦合以根据发射RF信号的基带处理将包络信号转换成误差信号。 错误检测模块可操作地耦合以从误差信号确定本地振荡泄漏值和I和Q不平衡值中的至少一个。 校正模块可操作地耦合以基于本地振荡泄漏值和I和Q不平衡值中的至少一个分别产生本地振荡泄漏校正信号和I和Q不平衡校正信号中的至少一个。

公开(公告)号：US20060094395A1

公开(公告)日：2006-05-04

申请号：US11303235

申请日：2005-12-16

申请人： C. Lee ,  Arya Behzad

发明人： C. Lee ,  Arya Behzad

IPC分类号： H04B1/28 ,  H04B1/18 ,  H04B1/10

CPC分类号： H04B1/30

摘要： An scheme to provide local oscillator feedthrough offset cancellation to remove baseband and radio frequency coupled offsets. Two separate offset cancellation currents are injected at a driver which drives a baseband signal into a mixer to mix with a local oscillator signal. One offset cancellation current cancels a baseband local oscillator feedthrough offset, while the other offset cancellation current cancels a radio frequency local oscillator feedthrough offset.

摘要翻译： 提供本地振荡器馈通偏移消除以去除基带和射频耦合偏移的方案。 在驱动基带信号的驱动器中注入两个单独的偏移消除电流到混频器以与本地振荡器信号混频。 一个偏移消除电流消除基带本地振荡器馈通偏移，而另一个偏移消除电流消除射频本地振荡器馈通偏移。

公开(公告)号：US20060057990A1

公开(公告)日：2006-03-16

申请号：US11167358

申请日：2005-06-27

申请人： Arya Behzad ,  C. Lee

发明人： Arya Behzad ,  C. Lee

IPC分类号： H04B7/00 ,  H04B1/06

CPC分类号： H03F3/45188 ,  H03F1/3211 ,  H03F3/19 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45318 ,  H03F2203/45332 ,  H03F2203/45338 ,  H03F2203/45512 ,  H03F2203/45526 ,  H03F2203/45638

摘要： A RF differential gain stage has cross-coupled capacitors between input and output nodes of the amplifier stage to boost gain. The gain boost allows cancellation of the series resistance of an inductive load of the amplifier stage.

摘要翻译： RF差分增益级在放大器级的输入和输出节点之间具有交叉耦合电容，以增强增益。 增益增益允许消除放大器级的感性负载的串联电阻。

公开(公告)号：US20070004368A1

公开(公告)日：2007-01-04

申请号：US11287805

申请日：2005-11-28

申请人： C. Lee ,  Arya Behzad ,  Michael Kappes

发明人： C. Lee ,  Arya Behzad ,  Michael Kappes

IPC分类号： H04B1/26

CPC分类号： H04B1/30 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0033 ,  H04B1/3827

摘要： An integrated circuit radio transceiver and method therefor comprises circuitry that is operable to up-convert an outgoing continuous waveform signal to RF and that is further operable to down-convert and ingoing RF signal to one of a baseband or intermediate frequency in a manner that provides a linearized output current having an amplified current magnitude for mixing with a local oscillation in a mixer block. Specifically, a circuit portion is operable to produce a linearized current based upon an input signal. The linearized current is then produced to a current mirror block that produces a scaled and amplified output current. The scaled and amplified output current is then produced to a mixer block for mixing with a local oscillation to create the outgoing RF signal or the ingoing baseband or intermediate frequency signal.

摘要翻译： 一种集成电路无线电收发机及其方法包括可操作以将输出的连续波形信号上变频到RF的电路，其可进一步可操作以将RF信号下变频和入射到基带或中频之一，以提供 线性化输出电流，其具有放大的电流幅值，用于与混频器块中的本地振荡混频。 具体地，电路部分可操作以基于输入信号产生线性化电流。 然后将线性化电流产生到产生缩放和放大的输出电流的电流镜块。 然后将缩放和放大的输出电流产生到混频器模块以与本地振荡混频以产生输出RF信号或输入基带或中频信号。

公开(公告)号：US20060057991A1

公开(公告)日：2006-03-16

申请号：US11167407

申请日：2005-06-27

申请人： Arya Behzad ,  C. Lee

发明人： Arya Behzad ,  C. Lee

IPC分类号： H01Q11/12 ,  H04B7/00 ,  H04B1/04

CPC分类号： H03G1/0029

摘要： An apparatus and method to use a gain control network across source terminals of cascode transistors that drive a differential current to control gain. The drains of the cascode transistors are coupled to a load such as a mixer. The cascode arrangement provides high impedance coupling to the load and the proximity of the gain control network allows offsets to be gain tracked to signal gain.

摘要翻译： 在串联晶体管的源极端子上使用增益控制网络的装置和方法，其驱动差分电流以控制增益。 共源共栅晶体管的漏极耦合到诸如混合器的负载。 共源共栅布置提供对负载的高阻抗耦合，并且增益控制网络的接近允许将补偿跟踪到信号增益。

公开(公告)号：US20060055461A1

公开(公告)日：2006-03-16

申请号：US11167359

申请日：2005-06-27

申请人： C. Lee ,  Arya Behzad

发明人： C. Lee ,  Arya Behzad

IPC分类号： H03F3/45

CPC分类号： H03G1/0029 ,  H03F3/45179

摘要： An apparatus and method to use a shunt network across source terminals of cascode transistors that drive a differential current to control gain. When the gates of the cascode transistors and transistors of the shunt network are activated by a same bias voltage, the gain control is substantially independent of process, voltage and temperature variations.

摘要翻译： 在串联晶体管的源极端子上使用分流网络的装置和方法，其驱动差分电流以控制增益。 当并联网络的共源共栅晶体管和晶体管的栅极被相同的偏置电压激活时，增益控制基本上与过程，电压和温度变化无关。