公开(公告)号：US07395040B2

公开(公告)日：2008-07-01

申请号：US11173086

申请日：2005-07-01

申请人： Arya Reza Behzad

发明人： Arya Reza Behzad

IPC分类号： H04B1/18 ,  H04M1/00

CPC分类号： H04B1/005 ,  H04B1/30 ,  H04B1/406

摘要： A MIMO transceiver integrated circuit (IC) includes a plurality of multiple band direct conversion transmitter sections, a plurality of multiple band direct conversion receiver sections, and a local oscillation generation module. Each of the plurality of multiple band direct conversion transmitter sections includes a transmit baseband module and a multiple frequency band transmission module. Each of the plurality of multiple band direct conversion receiver sections includes a multiple frequency band reception module and a receiver baseband module. The local oscillation generation module is operably coupled to generate the first frequency band local oscillation when the multiple band MIMO transceiver IC is in a first mode and operably coupled to generate the second frequency band local oscillation when the multiple band MIMO transceiver IC is in a second mode.

摘要翻译： MIMO收发器集成电路（IC）包括多个多频带直接转换发射机部分，多个多频带直接转换接收机部分和本地振荡发生模块。 多个频带直接变换发送部中的每一个包括发送基带模块和多频带发送模块。 多个频带直接变换接收部中的每一个包括多频带接收模块和接收机基带模块。 当多频带MIMO收发器IC处于第一模式时，本地振荡产生模块可操作地耦合以产生第一频带本地振荡，并且当多频带MIMO收发器IC处于第二模式时可操作地耦合以产生第二频带本地振荡 模式。

公开(公告)号：US07356325B2

公开(公告)日：2008-04-08

申请号：US11173043

申请日：2005-07-01

申请人： Arya Reza Behzad ,  Hooman Darabi

发明人： Arya Reza Behzad ,  Hooman Darabi

IPC分类号： H04B1/26 ,  H04B1/28 ,  H04M1/00

CPC分类号： H04B1/0082

摘要： Local oscillation circuitry for use in an RF transceiver Integrated Circuit (IC) includes local oscillation generation circuitry operable to produce a local oscillation and local oscillation distribution circuitry. The local oscillation distribution circuitry includes a splitting circuit, a first distribution portion, and a second distribution portion. The splitting circuit receives the local oscillation and produces multiple copies of the local oscillation. The first distribution portion produces a first local oscillation corresponding to a first RF band and a second local oscillation corresponding to a second RF band based and to provide the first local oscillation and the second local oscillation to a first RF transceiver group. The second distribution portion produces a first local oscillation and a second local oscillation and provides the first local oscillation and the second local oscillation to the second RF transceiver group.

摘要翻译： 用于RF收发器的本地振荡电路集成电路（IC）包括可操作以产生本地振荡和本地振荡分配电路的本地振荡发生电路。 本地振荡分配电路包括分离电路，第一分配部分和第二分配部分。 分离电路接收本地振荡并产生本地振荡的多个副本。 第一分配部分产生对应于第一RF频带的第一本地振荡和对应于第二RF频带的第二本地振荡，并且向第一RF收发机组提供第一本地振荡和第二本地振荡。 第二分配部分产生第一本地振荡和第二本地振荡，并将第一本地振荡和第二本地振荡提供给第二RF收发器组。

公开(公告)号：US07266357B2

公开(公告)日：2007-09-04

申请号：US10436191

申请日：2003-05-12

申请人： Arya Reza Behzad

发明人： Arya Reza Behzad

IPC分类号： H04B1/10

CPC分类号： H04L27/2273 ,  H03D7/1433 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D7/165 ,  H03D7/18 ,  H03D2200/0047

摘要： An RF communications circuit having a reduced LO feed through image reject mixer is disclosed. The image reject mixer includes a quadrature phase transconductance stage coupled to a quadrature phase mixer of a quadrature phase mixer module and an in-phase mixer of an in-phase mixer module. The image reject mixer further includes an in-phase transconductance stage coupled to an in-phase mixer of the quadrature phase mixer module and a quadrature phase mixer of the in-phase mixer module. The output of the quadrature phase mixer and in-phase mixer of the quadrature phase mixer module are cross-coupled to form a quadrature phase local oscillator (LO) output and wherein the output of the quadrature phase mixer and in-phase mixer of the in-phase mixer module are cross-coupled to form an in-phase local oscillator (LO) output.

摘要翻译： 公开了一种通过图像拒绝混合器具有减小的LO馈送的RF通信电路。 图像抑制混频器包括耦合到正交混频器模块的正交混频器和同相混频器模块的同相混频器的正交相位跨导级。 图像拒绝混合器还包括耦合到正交混频器模块的同相混频器和同相混频器模块的正交混频器的同相跨导级。 正交相位混频器的正交混频器和同相混频器的输出交叉耦合以形成正交相位本地振荡器（LO）输出，并且其中正交混频器和同相混频器的输入 相位混频器模块交叉耦合以形成同相本地振荡器（LO）输出。

公开(公告)号：US07135928B2

公开(公告)日：2006-11-14

申请号：US10769178

申请日：2004-01-30

申请人： Arya Reza Behzad

发明人： Arya Reza Behzad

IPC分类号： H03F3/45

CPC分类号： H03F1/3211 ,  H03F1/26 ,  H03F3/45183 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45288 ,  H03F2203/45541 ,  H03F2203/45564 ,  H03F2203/45581 ,  H03F2203/45594

摘要： A Class AB voltage-to-current converter includes a plurality of DC coupled transconductance stages that produce a linearized output and a biasing circuit. The biasing circuit generates a primary bias voltage that is greater than a generated secondary bias voltage. As such, the first transconductance stage becomes active before the second transconductance stage with respect to the magnitude of a differential input voltage, thereby allowing the transconductance of the secondary transconductance stage to be added (or subtracted) from the transconductance of the primary stage to improve the overall transconductance of the Class AB voltage-to-current converter. As each of the plurality of transconductance stages is biased differently from the others, the various transconductance stages are biased on to differing amounts based upon the biasing signals as well as the input signal.

摘要翻译： AB类电压 - 电流转换器包括产生线性化输出和偏置电路的多个DC耦合跨导级。 偏置电路产生大于产生的次级偏置电压的初级偏置电压。 因此，第一跨导级相对于差分输入电压的幅度在第二跨导级之前变为有效，从而允许从初级级的跨导添加（或减去）次级跨导级的跨导，以改善 AB类电压 - 电流转换器的整体跨导。 由于多个跨导级中的每一个与其它跨导级的偏置不同，所以基于偏置信号以及输入信号将各种跨导级偏置到不同的量。

公开(公告)号：US20060222100A1

公开(公告)日：2006-10-05

申请号：US11173086

申请日：2005-07-01

申请人： Arya Reza Behzad

发明人： Arya Reza Behzad

IPC分类号： H04L1/02

CPC分类号： H04B1/005 ,  H04B1/30 ,  H04B1/406

摘要： A MIMO transceiver integrated circuit (IC) includes a plurality of multiple band direct conversion transmitter sections, a plurality of multiple band direct conversion receiver sections, and a local oscillation generation module. Each of the plurality of multiple band direct conversion transmitter sections includes a transmit baseband module and a multiple frequency band transmission module. Each of the plurality of multiple band direct conversion receiver sections includes a multiple frequency band reception module and a receiver baseband module. The local oscillation generation module is operably coupled to generate the first frequency band local oscillation when the multiple band MIMO transceiver IC is in a first mode and operably coupled to generate the second frequency band local oscillation when the multiple band MIMO transceiver IC is in a second mode.

公开(公告)号：US06995616B2

公开(公告)日：2006-02-07

申请号：US10799837

申请日：2004-03-12

申请人： Arya Reza Behzad ,  Akira Ito

发明人： Arya Reza Behzad ,  Akira Ito

IPC分类号： H03F3/04

CPC分类号： H03F1/223 ,  H03F2200/372

摘要： A power amplifier includes a transconductance stage, a cascode stage, and may include a signal level detection and bias determination module. The transconductance stage is operable to receive an input voltage signal and to produce an output current signal. The cascode stage communicatively couples to the transconductance stage and is operable to receive the output current signal and to produce an output voltage signal based thereupon. The cascode stage includes a Metal Oxide Silicon (MOS) transistor and a corresponding parasitic bipolar junction transistor, each of the gate of the MOS transistor and the base of the parasitic bipolar junction transistor available for voltage control. The signal level detection and bias determination module operably couples to the cascode stage and is operable to controllably bias the gate of the MOS transistor and to controllably bias the base of the corresponding parasitic bipolar junction transistor.

摘要翻译： 功率放大器包括跨导级，共源共栅级，并且可以包括信号电平检测和偏置确定模块。 跨导级可操作以接收输入电压信号并产生输出电流信号。 共源共栅级通信耦合到跨导级并且可操作以接收输出电流信号并且基于此产生输出电压信号。 共源共栅级包括金属氧化物硅（MOS）晶体管和相应的寄生双极结型晶体管，MOS晶体管的栅极和寄生双极结型晶体管的基极可用于电压控制。 信号电平检测和偏置确定模块可操作地耦合到共源共栅级，并且可操作地可控制地偏置MOS晶体管的栅极并且可控地偏置相应的寄生双极结型晶体管的基极。

公开(公告)号：US06894558B2

公开(公告)日：2005-05-17

申请号：US10760492

申请日：2004-01-21

申请人： Arya Reza Behzad

发明人： Arya Reza Behzad

IPC分类号： H03G1/00 ,  H03G3/00 ,  H03G3/30 ,  H03G5/10 ,  H03H11/24 ,  H03K5/00

CPC分类号： H03G5/10 ,  H03G1/0088 ,  H03G3/001 ,  H03G3/3036 ,  H03H11/245

摘要： Often programmable gain attenuators (PGAs) are combined with high pass filters. Adjustment of the highpass filter however can have unintended effects, such as changing the step size of the PGA. By placing the resistance of the highpass filter in parallel with a programmable attenuator divider, the steps of the PGA can be minimally affected as the highpass frequency is adjusted.

摘要翻译： 通常可编程增益衰减器（PGA）与高通滤波器组合。 然而，高通滤波器的调整可能会产生意想不到的影响，例如改变PGA的步长。 通过将高通滤波器的电阻与可编程衰减器分压器并联，PGA的步骤可以在高通滤波器调整时受到最小的影响。

公开(公告)号：US06696892B1

公开(公告)日：2004-02-24

申请号：US09712410

申请日：2000-11-13

申请人： Arya Reza Behzad

发明人： Arya Reza Behzad

IPC分类号： H03F114

CPC分类号： H03G1/0088 ,  H03G3/001 ,  H03G3/3036

摘要： A design of integrated circuit components to prevent accidental turn on when large input signals are accepted. With integrated circuits operated at lower power supply voltages, input signals having large peak values can tend to turn on devices within the integrated circuit erroneously. By placing amplifiers within the integrated circuits where input signals are received and removing the power of such amplifiers, accidental turn on can be minimized.

摘要翻译： 集成电路组件的设计，以防止在大输入信号被接受时意外接通。 利用在较低电源电压下工作的集成电路，具有大峰值的输入信号可能会错误地打开集成电路内的器件。 通过将放大器放置在接收输入信号的集成电路中，并且去除这种放大器的功率，可以最小化意外导通。

公开(公告)号：US06667654B2

公开(公告)日：2003-12-23

申请号：US10360810

申请日：2003-02-10

申请人： Arya Reza Behzad ,  Frank Wayne Singor

发明人： Arya Reza Behzad ,  Frank Wayne Singor

IPC分类号： G05F110

CPC分类号： H03F3/45183 ,  G05F3/262 ,  H03F2203/45508

摘要： Methods and apparatus for improving the current matching within current mirror circuits in applications such as low voltage integrated circuits. Embodiments of the present invention attempt to maintain the proper current ratio between reference and output supplies by adjusting the reference output of the current mirror. An existing reference voltage on the output side of the mirror can be used or a reference voltage can be created to be used for the voltage regulation of the reference side of the current mirror.

公开(公告)号：US06396335B1

公开(公告)日：2002-05-28

申请号：US09712413

申请日：2000-11-13

申请人： Arya Reza Behzad ,  Frank Wayne Singor

发明人： Arya Reza Behzad ,  Frank Wayne Singor

IPC分类号： G05F110

CPC分类号： H03F3/45183 ,  G05F3/262 ,  H03F2203/45508

摘要： Methods and apparatus for improving the current matching within current mirror circuits in applications such as low voltage integrated circuits. Embodiments of the present invention attempt to maintain the proper current ratio between reference and output supplies by adjusting the reference output of the current mirror. An existing reference voltage on the output side of the mirror can be used or a reference voltage can be created to be used for the voltage regulation of the reference side of the current mirror.

摘要翻译： 用于改善电流镜像电路内的电流匹配的方法和装置，例如低压集成电路。 本发明的实施例通过调节电流镜的参考输出来尝试维持参考电压和输出电源之间的适当电流比。 可以使用反射镜的输出侧上的现有参考电压，或者可以创建用于电流镜的参考侧的电压调节的参考电压。