公开(公告)号：US07136622B2

公开(公告)日：2006-11-14

申请号：US11110349

申请日：2005-04-19

Applicant: Ahmadreza Rofougaran ,  Maryam Rofougaran ,  Hung-Ming Chien ,  Meng-An Pan

Inventor： Ahmadreza Rofougaran ,  Maryam Rofougaran ,  Hung-Ming Chien ,  Meng-An Pan

IPC: H04B7/14

CPC classification number: H03F3/45183 ,  H03F3/245 ,  H03F3/45475 ,  H03H11/1291 ,  H03H21/0001 ,  H03H21/0012 ,  H03H2011/0494 ,  H03J2200/10 ,  H04B1/40 ,  H04B17/14

Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

Abstract translation: 在说明书和附图中描述和示出的本发明的示例性实施例是具有接收器，发射器，本地振荡器（LO）发生器，控制器和自检单元的收发器。 所有这些组件都可以封装以集成到单个IC中，其中包括过滤器和电感器等组件。 用于接收机，发射机和LO发生器的自适应编程和校准的控制器。 自检单元产生用于确定接收机，发射机和LO发生器的增益，频率特性，选择性，本底噪声和失真特性。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

公开(公告)号：US20060220738A1

公开(公告)日：2006-10-05

申请号：US11094272

申请日：2005-03-31

Applicant: Meng-An Pan

Inventor： Meng-An Pan

IPC: H03F3/68

CPC classification number: H04B1/0483

Abstract: A method and apparatus are provided for enabling a transmitter to have a substantially linear magnitude response and a substantially linear phase response. The transmitter includes first and second programmable gain amplifiers (PGAs). The first PGA is tuned to have a resonant frequency that is less than an operating frequency of the first PGA. The second PGA is tuned to have a resonant frequency that is greater than an operating frequency of the second PGA. A magnitude response at an output of the first PGA and a magnitude response at an output of the second PGA combine to provide a substantially linear magnitude response across a frequency range that includes the operating frequency of the first or second PGA. According to an embodiment, the first and second PGAs have the same operating frequency.

Abstract translation: 提供了一种方法和装置，用于使得发射机具有基本线性的幅度响应和基本上线性的相位响应。 发射机包括第一和第二可编程增益放大器（PGA）。 第一个PGA调谐为具有小于第一个PGA的工作频率的谐振频率。 第二PGA调谐为具有大于第二PGA的工作频率的谐振频率。 在第一PGA的输出处的幅度响应和在第二PGA的输出处的幅度响应被组合以在包括第一或第二PGA的工作频率的频率范围内提供基本上线性的幅度响应。 根据实施例，第一和第二PGA具有相同的工作频率。

公开(公告)号：US20060217090A1

公开(公告)日：2006-09-28

申请号：US11087704

申请日：2005-03-24

Applicant: Meng-An Pan

Inventor： Meng-An Pan

IPC: H04M1/00

CPC classification number: H04B1/0003 ,  H03F1/0261 ,  H03F3/45188 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307 ,  H03G2201/40 ,  H04B1/0475

Abstract: A transmitter includes a dual mode modulator and an amplifier coupled to the dual mode modulator. The dual mode modulator implements a linear modulation scheme during a first mode of the modulator to produce a variable envelope modulated signal. The dual mode modulator implements a non-linear modulation scheme during a second mode of the modulator to produce a constant envelope modulated signal. The amplifier is biased as a linear amplifier during the first mode of the modulator and is biased as a non-linear amplifier during the second mode of the modulator. A feed-forward connection between the dual mode modulator and the amplifier is used to indicate a change in modulation mode and to adjust the bias of the amplifier. A power of the constant envelope modulated signal is increased such that an operating point of the amplifier remains substantially constant during the first and second modes of the modulator.

公开(公告)号：US20060049874A1

公开(公告)日：2006-03-09

申请号：US10953362

申请日：2004-09-30

Applicant: Meng-An Pan

Inventor： Meng-An Pan

IPC: H03F3/45

CPC classification number: H03F3/189 ,  H03F3/45179

Abstract: The invention enables an increase in linearity of a power amplifier while reducing current consumption by supplying a bias current to the power amplifier in a Class AB mode.

Abstract translation: 本发明能够通过在AB类模式下向功率放大器提供偏置电流来降低功率放大器的线性度，同时降低电流消耗。

公开(公告)号：US20050186917A1

公开(公告)日：2005-08-25

申请号：US11110349

申请日：2005-04-19

Applicant: Ahmadreza Rofougaran ,  Maryam Rofougaran ,  Hung-Ming Chien ,  Meng-An Pan

Inventor： Ahmadreza Rofougaran ,  Maryam Rofougaran ,  Hung-Ming Chien ,  Meng-An Pan

IPC: H03H11/12 ,  H03H21/00 ,  H04B1/40 ,  H04B7/14 ,  H04B1/38

CPC classification number: H03F3/45183 ,  H03F3/245 ,  H03F3/45475 ,  H03H11/1291 ,  H03H21/0001 ,  H03H21/0012 ,  H03H2011/0494 ,  H03J2200/10 ,  H04B1/40 ,  H04B17/14

Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

Abstract translation: 在说明书和附图中描述和示出的本发明的示例性实施例是具有接收器，发射器，本地振荡器（LO）发生器，控制器和自检单元的收发器。 所有这些组件都可以封装以集成到单个IC中，其中包括过滤器和电感器等组件。 用于接收机，发射机和LO发生器的自适应编程和校准的控制器。 自检单元产生用于确定接收机，发射机和LO发生器的增益，频率特性，选择性，本底噪声和失真特性。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

公开(公告)号：US20050164667A1

公开(公告)日：2005-07-28

申请号：US10761625

申请日：2004-01-22

Applicant: Meng-An Pan ,  Bojko Marholev

Inventor： Meng-An Pan ,  Bojko Marholev

IPC: H03G1/00 ,  H03G3/30 ,  H03G7/00 ,  H04B1/18

CPC classification number: H03G3/3042 ,  H03G1/0088 ,  H03G7/001

Abstract: A power amplifier for use in a transmitter enables linear in dB output power control capability with 2 dB step sizes.

Abstract translation: 用于发射机的功率放大器可实现具有2 dB步长的线性dB输出功率控制能力。

公开(公告)号：US08750813B2

公开(公告)日：2014-06-10

申请号：US12470378

申请日：2009-05-21

Applicant: Meng-An Pan

Inventor： Meng-An Pan

IPC: H04B1/04 ,  H01Q11/12

CPC classification number: H04B1/04 ,  H03G3/3042 ,  H04B2001/0416

Abstract: A transmitter RF front-end integrated on a single substrate is enabled to determine whether associated IF amplification stage provides a required transmission gain for transmitting an output signal of an application. A dedicated power amplifier driver within the transmitter RF front-end is configured to provide additional gain, when needed based on the determination, to meet the required transmission gain for transmitting the output signal. The associated IF amplification stage comprises an upconversion mixer and a lowpass filter (LPF). The upconversion mixer may be implemented as an active mixer or a passive mixer. The upconversion mixer and the dedicated power amplifier driver are enabled to operate in 2.44 gigahertz. A maximum gain provided by the associated intermediate frequency (IF) amplification stage for transmitting the output signal is determined to decide the additional gain provided by the dedicated power amplifier driver by comparing with the required transmission gain.

Abstract translation: 集成在单个基板上的发射器RF前端能够确定相关联的IF放大级是否提供用于发送应用的输出信号的所需传输增益。 发射机RF前端内的专用功率放大器驱动器被配置为当需要基于该确定时提供额外的增益，以满足用于传输输出信号的所需传输增益。 相关的IF放大级包括上变频混频器和低通滤波器（LPF）。 上变频混频器可以实现为有源混频器或无源混频器。 上变频混频器和专用功率放大器驱动器使能工作在2.44千兆赫兹。 确定用于发送输出信号的相关联的中频（IF）放大级提供的最大增益，以通过与所需的传输增益进行比较来确定由专用功率放大器驱动器提供的附加增益。

公开(公告)号：US08369798B2

公开(公告)日：2013-02-05

申请号：US13031331

申请日：2011-02-21

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

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

IPC: H04B1/40

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

Abstract: 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.

Abstract translation: 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：US08244193B2

公开(公告)日：2012-08-14

申请号：US12348450

申请日：2009-01-05

Applicant: Meng-An Pan

Inventor： Meng-An Pan

IPC: H01Q11/12 ,  H04K3/00

CPC classification number: H04B1/0003 ,  H03F1/0261 ,  H03F3/45188 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307 ,  H03G2201/40 ,  H04B1/0475

Abstract: A transmitter includes a dual mode modulator and an amplifier coupled to the dual mode modulator. The dual mode modulator implements a linear modulation scheme during a first mode of the modulator to produce a variable envelope modulated signal. The dual mode modulator implements a non-linear modulation scheme during a second mode of the modulator to produce a constant envelope modulated signal. The amplifier is biased as a linear amplifier during the first mode of the modulator and is biased as a non-linear amplifier during the second mode of the modulator. A feed-forward connection between the dual mode modulator and the amplifier is used to indicate a change in modulation mode and to adjust the bias of the amplifier. A power of the constant envelope modulated signal is increased such that an operating point of the amplifier remains substantially constant during the first and second modes of the modulator.

Abstract translation: 发射机包括耦合到双模调制器的双模调制器和放大器。 双模式调制器在调制器的第一模式期间实现线性调制方案，以产生可变包络调制信号。 双模式调制器在调制器的第二模式期间实现非线性调制方案，以产生恒定的包络调制信号。 放大器在调制器的第一模式期间被偏置为线性放大器，并且在调制器的第二模式期间被偏置为非线性放大器。 双模式调制器和放大器之间的前馈连接用于指示调制模式的变化并调整放大器的偏置。 恒定包络调制信号的功率增加，使得放大器的工作点在调制器的第一和第二模式期间保持基本恒定。

公开(公告)号：US07907921B2

公开(公告)日：2011-03-15

申请号：US12457542

申请日：2009-06-15

Applicant: Meng-An Pan

Inventor： Meng-An Pan

IPC: H01Q11/12 ,  H04B1/04

CPC classification number: H03F3/45188 ,  H03F1/0205 ,  H03F1/0277 ,  H03F1/32 ,  H03F3/24 ,  H03F3/72 ,  H03F2203/45481 ,  H03F2203/45652 ,  H03G3/3026

Abstract: A method and apparatus are provided for enabling a transmitter to have a substantially linear magnitude response and a substantially linear phase response. The transmitter includes first and second power amplifier drivers (PADs) having respective first and second non-linear phase responses. The first non-linear phase response is based on a first bias applied to the first PAD, and the second non-linear phase response is based on a second bias applied to the second PAD. The first and second PADs are coupled in parallel to provide a combined substantially linear phase response. According to an embodiment, the first and second PADs have respective first and second average input capacitances. Signal swings about the first and second biases vary the respective first and second average input capacitances, which may be combined to provide a combined average input capacitance that is substantially insensitive to the signal swings about the first and second biases.

Abstract translation: 提供了一种方法和装置，用于使得发射机具有基本线性的幅度响应和基本上线性的相位响应。 发射机包括具有相应的第一和第二非线性相位响应的第一和第二功率放大器驱动器（PAD）。 第一非线性相位响应基于施加到第一PAD的第一偏置，并且第二非线性相位响应基于施加到第二PAD的第二偏置。 第一和第二PAD并联耦合以提供组合的基本上线性的相位响应。 根据实施例，第一和第二PAD具有相应的第一和第二平均输入电容。 关于第一和第二偏置的信号摆动改变相应的第一和第二平均输入电容，其可以被组合以提供对于关于第一和第二偏压的信号摆动基本上不敏感的组合平均输入电容。