公开(公告)号：US20050087887A1

公开(公告)日：2005-04-28

申请号：US10972102

申请日：2004-10-22

申请人： Arya Behzad ,  Agnes Woo ,  Victor Fong

发明人： Arya Behzad ,  Agnes Woo ,  Victor Fong

IPC分类号： H01L23/36 ,  H01L23/48 ,  H01L23/50 ,  H01L23/60 ,  H01L23/66 ,  H01L27/02 ,  H03F3/14

CPC分类号： H01L27/0255 ,  H01L23/36 ,  H01L23/3677 ,  H01L23/50 ,  H01L23/60 ,  H01L23/66 ,  H01L24/48 ,  H01L24/49 ,  H01L2223/6611 ,  H01L2224/32188 ,  H01L2224/48091 ,  H01L2224/48237 ,  H01L2224/49113 ,  H01L2924/00014 ,  H01L2924/01015 ,  H01L2924/01033 ,  H01L2924/14 ,  H01L2924/19042 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2224/45099 ,  H01L2224/05599

摘要： A padring formed on a semi conductive substrate die provides Electro Static Discharge (ESD) protection for a Radio Frequency (RF) circuit also formed on the semi conductive substrate die. The padring includes a voltage supply rail, a ground rail, a plurality of signal pad structures, and a plurality of voltage clamps. The plurality of signal pad structures are disposed between the voltage supply rail and the ground rail. Each signal pad structure includes a signal pad that couples to the RF circuit, a voltage supply path diode disposed between and coupled between the signal pad and the voltage supply rail, and a ground path diode disposed between and coupled between the signal pad and the voltage supply rail. The plurality of voltage clamps are disposed between and coupled between the voltage supply rail and the ground rail.

摘要翻译： 形成在半导体衬底裸片上的衬垫为也形成在半导体衬底裸片上的射频（RF）电路提供静电放电（ESD）保护。 衬垫包括电压供应轨，接地轨，多个信号垫结构和多个电压钳。 多个信号焊盘结构设置在电源线和接地轨之间。 每个信号焊盘结构包括耦合到RF电路的信号焊盘，设置在信号焊盘和电压源导轨之间并耦合在信号焊盘和电压供应轨道之间的电压供应路径二极管，以及设置在信号焊盘和电压之间并耦合在其之间的接地路径二极管 供应轨道 多个电压钳位置设置在电压供应轨道和接地轨道之间并耦合在电压供应轨道和接地轨道之间。

公开(公告)号：US20050083126A1

公开(公告)日：2005-04-21

申请号：US10984866

申请日：2004-11-10

申请人： Frank Singor ,  Arya Behzad

发明人： Frank Singor ,  Arya Behzad

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/45381 ,  H03F3/45475 ,  H03F2200/516 ,  H03F2203/45392 ,  H03F2203/45651 ,  H03F2203/45652 ,  H03F2203/45682 ,  H03F2203/45696 ,  H03F2203/45702

摘要： A circuit and method for bridging an analog signal between two integrated circuits operating at different supply voltages. The circuit is a two stage fixed gain amplifier. The first stage is a transconductance amplifier and the second stage is an operational amplifier. The first stage converts an input signal from a voltage into a current. The second stage converts the current signal to an output voltage signal.

摘要翻译： 一种在不同电源电压下工作的两个集成电路之间桥接模拟信号的电路和方法。 该电路是两级固定增益放大器。 第一级是跨导放大器，第二级是运算放大器。 第一阶段将输入信号从电压转换为电流。 第二级将电流信号转换为输出电压信号。

公开(公告)号：US20050077968A1

公开(公告)日：2005-04-14

申请号：US10799958

申请日：2004-03-12

申请人： Arya Behzad

发明人： Arya Behzad

IPC分类号： H03F1/22 ,  H03F1/52

CPC分类号： H03F1/523 ,  H03F1/223 ,  H03F1/52 ,  H03F2200/372

摘要： A power amplifier includes a transconductance stage, a cascode stage, and a connector. 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 transistor formed in parallel therewith in a semi conductive substrate. The MOS transistor has a drain, a gate, and a source. The corresponding parasitic bipolar junction transistor has a collector corresponding to the drain, an emitter corresponding to the source, and a base corresponding to the semi conductive substrate. The connector couples the base of the corresponding parasitic bipolar junction transistor to the source of the MOS transistor.

摘要翻译： 功率放大器包括跨导级，共源共栅级和连接器。 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）晶体管和在半导体衬底中与之并联形成的相应的寄生双极晶体管。 MOS晶体管具有漏极，栅极和源极。 相应的寄生双极结晶体管具有对应于漏极的集电极，对应于源极的发射极和对应于半导体衬底的基极。 连接器将相应的寄生双极结晶体管的基极连接到MOS晶体管的源极。

公开(公告)号：US08600305B2

公开(公告)日：2013-12-03

申请号：US13478918

申请日：2012-05-23

申请人： Arya Behzad ,  Ali Afashi ,  Vikram Magoon

发明人： Arya Behzad ,  Ali Afashi ,  Vikram Magoon

IPC分类号： H04B1/00

CPC分类号： H03F1/3247 ,  H03F1/3294 ,  H03F2200/336 ,  H03F2200/57 ,  H04L27/368

摘要： Aspects of a method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a single feedback mixer are presented. Aspects of the system may include at least one circuit that enables generation of an output signal in response to one or more generated input signals. A feedback signal may be generated within a single feedback mixer circuit that may perform a frequency mix-down operation on the generated output signal. The generated feedback signal may be inserted at one or more insertion points in a receiver. Each of the insertion points may be located between a mixer stage of the receiver, and one or more circuits that generate a baseband signal based on the generated feedback signal.

公开(公告)号：US08594598B2

公开(公告)日：2013-11-26

申请号：US13471651

申请日：2012-05-15

申请人： Arya Behzad ,  Ali Afsahi ,  Mark Gonikberg

发明人： Arya Behzad ,  Ali Afsahi ,  Mark Gonikberg

IPC分类号： H04B17/00 ,  H04B17/02 ,  H04B1/06

CPC分类号： H04B7/0811

摘要： A method for processing signals in a receiver includes receiving a plurality of wireless signals via a plurality of M receive antennas coupled to M corresponding signal amplifiers. The method may also include measuring corresponding signal strengths of M signals generated when each of M phase-shifters is coupled to each of the M receive antennas, while one or more of the M signal amplifiers are disabled. One of the M generated signals may be selected for processing without the use of an antenna switch, where the selecting may be based on the measured signal strength. Each of the plurality of received wireless signals may be amplified prior to the measuring. One or both of an in-phase (I) component and/or a quadrature (Q) component may be generated for each of the M generated signals.

摘要翻译： 用于在接收机中处理信号的方法包括经由耦合到M个相应信号放大器的多个M个接收天线接收多个无线信号。 该方法还可以包括当M个移相器中的每一个耦合到M个接收天线中的每一个时产生的M个信号的相应信号强度，而一个或多个M个信号放大器被禁用。 可以选择M个生成的信号中的一个用于处理而不使用天线开关，其中选择可以基于测量的信号强度。 多个接收的无线信号中的每一个可以在测量之前被放大。 可以为M个生成的信号中的每一个生成同相（I）分量和/或正交（Q）分量中的一个或两个。

公开(公告)号：US08391808B2

公开(公告)日：2013-03-05

申请号：US12038996

申请日：2008-02-28

申请人： Mark Gonikberg ,  Luis Gutierrez ,  Colin Fraser ,  Arya Behzad ,  George Varghese

发明人： Mark Gonikberg ,  Luis Gutierrez ,  Colin Fraser ,  Arya Behzad ,  George Varghese

IPC分类号： H04B1/04

CPC分类号： H04L27/2626 ,  H03F1/3241 ,  H04B1/0475 ,  H04B2001/0425

摘要： Aspects of a method and system for estimating and compensating for non-linear distortion in a transmitter using calibration are presented. Aspects of the system may include one more circuits that may enable estimation, within a single IC device, of distortion in output signals generated by a transmitter circuit. The circuitry may enable compensation of the estimated distortion by predistorting subsequent input signals. The transmitter circuit may generate subsequent output signals based on the predistorted subsequent input signals.

公开(公告)号：US08369798B2

公开(公告)日：2013-02-05

申请号：US13031331

申请日：2011-02-21

申请人： Meng-An Pan ,  Ali Afsahi ,  Vikram Magoon ,  Arya Behzad

发明人： Meng-An Pan ,  Ali Afsahi ,  Vikram Magoon ,  Arya Behzad

IPC分类号： H04B1/40

CPC分类号： H04B1/02 ,  H03F1/32 ,  H03F3/24 ,  H03F2200/168 ,  H03F2200/321 ,  H03F2200/336 ,  H04B1/005 ,  H04B2001/0408

摘要： A method and system for wireless communication is provided and may include generating a single analog quadrature signal in a chip including RF transmitters and receivers using a baseband processor, and generating output RF signals based on the quadrature signal in corresponding RF transmitters. The output RF signals may be communicated to the RF receivers via a feedback path including circuitry external to the RF receivers. The dedicated circuitry may include a transmit/receive switch and/or an on-chip or off-chip balun. The quadrature signal may include in-phase and quadrature-phase components. The output RF signal communicated via the feedback path may be down-converted utilizing mixers in the RF receivers and communicated to the baseband processor. Distortion in the quadrature signal may be estimated utilizing the communicated down-converted output RF signals and subsequently generated quadrature signals may be predistorted based on the distortion estimation.

摘要翻译： 提供了一种用于无线通信的方法和系统，并且可以包括使用基带处理器在包括RF发射机和接收机的芯片中生成单个模拟正交信号，并且基于对应的RF发射机中的正交信号产生输出RF信号。 输出RF信号可以经由包括RF接收器外部电路的反馈路径传送到RF接收器。 专用电路可以包括发送/接收开关和/或片上或片外平衡 - 不平衡转换器。 正交信号可以包括同相和正交相分量。 通过反馈路径传送的输出RF信号可以利用RF接收机中的混频器进行下变频，并传送给基带处理器。 正交信号中的失真可以利用所传送的下变频输出RF信号来估计，随后产生的正交信号可以基于失真估计来预失真。

公开(公告)号：US08346185B2

公开(公告)日：2013-01-01

申请号：US13304752

申请日：2011-11-28

申请人： Ali Afashi ,  Vikram Magoon ,  Arya Behzad

发明人： Ali Afashi ,  Vikram Magoon ,  Arya Behzad

IPC分类号： H03C1/62 ,  H04B17/00 ,  H04B1/04 ,  H01Q11/12

CPC分类号： H03G3/3042 ,  H03F1/0277 ,  H03F3/211 ,  H03F3/45188 ,  H03F3/72 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2203/21145 ,  H03F2203/45396 ,  H03F2203/45481 ,  H03F2203/45638 ,  H03F2203/7236

摘要： Aspects of a method and system for enhancing efficiency by modulating power amplifier (PA) gain are presented. Aspects of the system may comprise a PA gain modulator that enables modification of an amplitude of a digital baseband signal. A baseband processor may enable computation of a first gain value based on the modification. The baseband processor may enable computation of a second gain value based on the first gain value. A PA may enable generation of an RF output signal based on the modified digital baseband signal and the second gain value.

摘要翻译： 提出了通过调制功率放大器（PA）增益来提高效率的方法和系统的方面。 系统的方面可以包括能够修改数字基带信号的幅度的PA增益调制器。 基带处理器可以使得能够基于修改来计算第一增益值。 基带处理器可以使得能够基于第一增益值来计算第二增益值。 PA可以基于修改的数字基带信号和第二增益值来实现RF输出信号的产生。

公开(公告)号：US08224270B2

公开(公告)日：2012-07-17

申请号：US11618195

申请日：2006-12-29

申请人： Arya Behzad

发明人： Arya Behzad

IPC分类号： H04B1/04

CPC分类号： H03G3/007 ,  H03G3/3042 ,  Y02D70/122 ,  Y02D70/124

摘要： Methods, systems, and machine-readable code for optimizing transmit power of a power amplifier using a Vbat monitor are disclosed and may comprise adjusting the gain of gain stages in a transmit path based on a control signal that is a function of a supply voltage signal, among other variables, derived from a supply voltage that may be used to power a transmit path. The supply voltage signal may be received from a power management unit or derived directly from a battery or other supply. The supply voltage signal may be compared to a reference signal, the result of which may be utilized to generate the control signal. The values for the control signals may be determined over a range of supply voltages and stored in a lookup table.

摘要翻译： 公开了用于使用Vbat监视器来优化功率放大器的发射功率的方法，系统和机器可读代码，并且可以包括基于作为电源电压信号的函数的控制信号调整发射路径中的增益级的增益 ，以及其他变量，源自可用于为发送路径供电的电源电压。 电源电压信号可以从电源管理单元接收或直接从电池或其他电源导出。 电源电压信号可以与参考信号进行比较，参考信号的结果可用于产生控制信号。 控制信号的值可以在电源电压范围内确定并存储在查找表中。

公开(公告)号：US08219032B2

公开(公告)日：2012-07-10

申请号：US11618876

申请日：2006-12-31

申请人： Arya Behzad ,  Ali Afsahi ,  Vikram Magoon ,  Mark Gonikberg ,  George Varghese ,  Guruprasad Revanna

发明人： Arya Behzad ,  Ali Afsahi ,  Vikram Magoon ,  Mark Gonikberg ,  George Varghese ,  Guruprasad Revanna

IPC分类号： H04B1/00

CPC分类号： H03F1/3247 ,  H03F1/3294 ,  H03F2200/336 ,  H03F2200/451 ,  H04L27/368

摘要： Aspects of a method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration are presented. Aspects of the system may include an RF transmitter that enables generation of an RF output signal in response to one or more generated input signals. One or more feedback signals may be generated by performing frequency downconversion on the RF output signal within a corresponding one or more feedback mixer circuits. The generated one or more feedback signals may be inserted at a corresponding one or more insertion points in an RF receiver. Each insertion point may be between a receiver mixer circuit and corresponding circuits that generate a baseband signal based on the corresponding one of the feedback signals.

摘要翻译： 提出了通过利用具有正交反馈混频器配置的数字预失真方案来补偿发射机中的估计失真的方法和系统的方面。 系统的方面可以包括RF发射器，其能够响应于一个或多个所生成的输入信号而产生RF输出信号。 可以通过对相应的一个或多个反馈混频器电路中的RF输出信号执行频率下变频来产生一个或多个反馈信号。 所生成的一个或多个反馈信号可以插入RF接收器中相应的一个或多个插入点。 每个插入点可以在接收机混合器电路和基于相应的一个反馈信号产生基带信号的相应电路之间。