公开(公告)号：US06982594B2

公开(公告)日：2006-01-03

申请号：US10712136

申请日：2003-11-13

Applicant: James R. Snider ,  Jason D. Millard

Inventor： James R. Snider ,  Jason D. Millard

IPC: H03G3/20

CPC classification number: H03G3/3047 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40

Abstract: A power control loop for a power amplifier is disclosed. Embodiments of the power control loop include deriving a secondary control signal. The secondary control signal may be used to control a gain applied to the power signal in the power control loop and to control a supply current or voltage delivered to a power amplifier.

Abstract translation: 公开了一种用于功率放大器的功率控制回路。 功率控制回路的实施例包括导出辅助控制信号。 辅助控制信号可以用于控制施加到功率控制回路中的功率信号的增益，并且控制传递到功率放大器的电源电流或电压。

公开(公告)号：US20050242875A1

公开(公告)日：2005-11-03

申请号：US11081384

申请日：2005-03-16

Applicant: Mark Gurvich ,  Ahmad Khanifar ,  Nikolai Maslennikov ,  Alexander Rabinovich

Inventor： Mark Gurvich ,  Ahmad Khanifar ,  Nikolai Maslennikov ,  Alexander Rabinovich

IPC: H03F1/02 ,  H03F1/32 ,  H03G3/20 ,  H03G3/30

CPC classification number: H03F1/32 ,  H03F1/0211 ,  H03F1/0222 ,  H03F1/0244 ,  H03G3/3042 ,  H03G2201/106 ,  H03G2201/206 ,  H03G2201/307

Abstract: A high efficiency radio frequency (RF) power amplifier having dynamically controlled back off is disclosed. The RF input voltage is sampled by an adaptive analog signal processing circuit. The adaptive analog signal processing circuit controls the supply voltage to RF amplifier devices, such as LDMOS devices, which varies the efficiency or back off of the power amplifier. The variable supply voltage in turn varies peak power of the amplifier.

Abstract translation: 公开了具有动态控制的退避的高效率射频（RF）功率放大器。 RF输入电压由自适应模拟信号处理电路采样。 自适应模拟信号处理电路控制对诸如LDMOS器件的RF放大器器件的电源电压，这些器件改变功率放大器的效率或退避。 可变电源电压又会改变放大器的峰值功率。

公开(公告)号：US20050206456A1

公开(公告)日：2005-09-22

申请号：US11130120

申请日：2005-05-17

Applicant: Masashi Suzuki ,  Hitoshi Akamine ,  Tetsuaki Adachi ,  Takahiro Sato ,  Masashi Maruyama ,  Susumu Takada

Inventor： Masashi Suzuki ,  Hitoshi Akamine ,  Tetsuaki Adachi ,  Takahiro Sato ,  Masashi Maruyama ,  Susumu Takada

IPC: H01L27/04 ,  H01L21/822 ,  H01L27/06 ,  H03F1/30 ,  H03F3/193 ,  H03F3/20 ,  H03F3/213 ,  H03F3/24 ,  H03F3/68 ,  H03G3/30 ,  H04B1/03 ,  H04B1/04

CPC classification number: H01L27/0629 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49111 ,  H01L2224/49175 ,  H01L2924/13091 ,  H03F1/301 ,  H03F3/193 ,  H03F2200/294 ,  H03F2200/372 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40 ,  H01L2924/00014 ,  H01L2924/00

Abstract: The number of components of a high frequency power amplifier is reduced. A bias resistance ratio is adjusted in accordance with a change in the threshold voltage Vth of a transistor. A high frequency power amplifier has a plurality of amplifying systems. Each of these systems has an input terminal to which a signal to be amplified is supplied, an output terminal, a bias terminal, a plurality of amplifying stages which are sequentially cascaded between the input and output terminals, and a bias circuit connected to the bias terminal and each of the amplifying stages to apply a bias potential to the amplifying stage. The amplifying stage includes a control terminal for receiving an input signal and the bias potential supplied to the stage and a first terminal for transmitting an output signal of the stage.

Abstract translation: 高频功率放大器的组件数量减少。 根据晶体管的阈值电压Vth的变化来调整偏置电阻比。 高频功率放大器具有多个放大系统。 这些系统中的每一个都具有供给要被放大的信号的输入端子，输出端子，偏置端子，在输入和输出端子之间顺序级联的多个放大级，以及连接到偏置电路的偏置电路 端子和每个放大级以向放大级施加偏置电位。 放大级包括用于接收输入信号和提供给级的偏置电位的控制端子和用于发送级的输出信号的第一端子。

公开(公告)号：US20050206447A1

公开(公告)日：2005-09-22

申请号：US10803771

申请日：2004-03-18

Applicant: Ryo Yamazaki ,  William Noellert

Inventor： Ryo Yamazaki ,  William Noellert

IPC: H03G3/00 ,  H03G3/20 ,  H03G3/30

CPC classification number: H03F1/52 ,  H03G3/004 ,  H03G3/3047 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/208 ,  H03G2201/307 ,  H03G2201/708

Abstract: When a power amplifier control loop operates near or in saturation, the quality of the output signal can be degraded and an over current condition can occur. To prevent this, the output signal of the power amplifier is detected, converted to digital, and then converted into the frequency spectrum by means of a Fast Fourier Transform. The spectral characteristics of the output signal are analyzed to determine if the power amplifier control loop is approaching or operating in saturation mode. This determination is made by looking at the power of the output signal at various frequencies. If the output at these frequencies exceeds a threshold value, the power amplifier control loop is approaching saturation. In this situation, the output of the power amplifier can be adjusted to prevent loop saturation. This can be accomplished by reducing the supply voltage to the power amplifier or adjusting the bias voltage.

Abstract translation: 当功率放大器控制回路在接近或饱和状态下工作时，输出信号的质量可能会下降，可能会出现过电流状态。 为了防止这种情况，功率放大器的输出信号被检测，转换为数字，然后通过快速傅里叶变换转换成频谱。 分析输出信号的频谱特性，以确定功率放大器控制环路是否接近或在饱和模式下工作。 通过查看各种频率的输出信号的功率来进行该确定。 如果这些频率的输出超过阈值，则功率放大器控制回路接近饱和。 在这种情况下，可以调节功率放大器的输出，以防止环路饱和。 这可以通过降低功率放大器的电源电压或调整偏置电压来实现。

公开(公告)号：US06900694B2

公开(公告)日：2005-05-31

申请号：US10799673

申请日：2004-03-15

Applicant: Masashi Suzuki ,  Hitoshi Akamine ,  Tetsuaki Adachi ,  Takahiro Sato ,  Masashi Maruyama ,  Susumu Takada

Inventor： Masashi Suzuki ,  Hitoshi Akamine ,  Tetsuaki Adachi ,  Takahiro Sato ,  Masashi Maruyama ,  Susumu Takada

IPC: H01L27/04 ,  H01L21/822 ,  H01L27/06 ,  H03F1/30 ,  H03F3/193 ,  H03F3/20 ,  H03F3/213 ,  H03F3/24 ,  H03F3/68 ,  H03G3/30 ,  H04B1/03 ,  H04B1/04 ,  H03G5/16

CPC classification number: H01L27/0629 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49111 ,  H01L2224/49175 ,  H03F1/301 ,  H03F3/193 ,  H03F2200/294 ,  H03F2200/372 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40 ,  H01L2924/00014

Abstract: The number of components of a high frequency power amplifier is reduced. A bias resistance ratio is adjusted in accordance with a change in the threshold voltage Vth of a transistor. A high frequency power amplifier has a plurality of amplifying systems. Each of these systems has an input terminal to which a signal to be amplified is supplied, an output terminal, a bias terminal, a plurality of amplifying stages which are sequentially cascaded between the input and output terminals, and a bias circuit connected to the bias terminal and each of the amplifying stages to apply a bias potential to the amplifying stage. The amplifying stage includes a control terminal for receiving an input signal and the bias potential supplied to the stage and a first terminal for transmitting an output signal of the stage.

公开(公告)号：US20050064841A1

公开(公告)日：2005-03-24

申请号：US10942844

申请日：2004-09-17

Applicant: Naoki Okamoto ,  Junji Ito

Inventor： Naoki Okamoto ,  Junji Ito

IPC: H03G1/00 ,  H03G3/20 ,  H03G3/30 ,  H03G11/08 ,  H04B1/28

CPC classification number: H03G1/0023 ,  H03G3/3063 ,  H03G11/08 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307

Abstract: In a receiving circuit, an antenna 11 receives a high-frequency signal at a predetermined frequency band, a level changing section 13 changes a signal level of the high-frequency signal received by the antenna, a subsequent-stage circuit 14 performs predetermined signal processing for the high-frequency signal whose signal level is changed at the level changing section 13, a detecting section 32 detects a signal level of the high-frequency signal for which the signal processing is performed by the subsequent-stage circuit 14, and a control section 33 sets a rate of change of the high-frequency signal by the level changing section 13, based on the signal level of the high-frequency signal detected by the detecting section 32, so that the signal level of the high-frequency signal detected by the detecting section 32 does not exceed a predetermined value.

Abstract translation: 在接收电路中，天线11接收预定频带的高频信号，电平变更部13改变由天线接收的高频信号的信号电平，后级电路14进行规定的信号处理 对于在电平变化部13发生信号电平变化的高频信号，检测部32检测后级电路14进行信号处理的高频信号的信号电平， 部分33基于由检测部分32检测的高频信号的信号电平，通过电平改变部分13设置高频信号的变化率，从而检测到高频信号的信号电平 由检测部32不超过规定值。

公开(公告)号：US06792282B1

公开(公告)日：2004-09-14

申请号：US09666698

申请日：2000-09-21

Applicant: William J. Domino ,  Dmitriy Rozenblit ,  Morten Damgaard ,  Nooshin D. Vakilian

Inventor： William J. Domino ,  Dmitriy Rozenblit ,  Morten Damgaard ,  Nooshin D. Vakilian

IPC: H04B102

CPC classification number: H03G3/3047 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/206 ,  H03G2201/307

Abstract: A translation loop modulator and power amplifier in a phase and amplitude modulated transmission environment includes a translation loop having a phase locked loop and that is configured to receive a first modulated signal (PM) and that is also configured to provide a frequency specific modulated signal. The invention also includes a power amplifier configured to receive the frequency specific modulated signal, a variable gain element configured to provide a second modulated signal (AM) to the power amplifier and a switching element configured to receive a portion of an output of the translation loop and a portion of an output power of the power amplifier. The switching element is configured to apply the output portion of the translation loop to an input of the translation loop during a first time period and apply the detected output power portion of the power amplifier to the input of the translation loop during a second time period, thus allowing the phase locked loop in the translation loop to correct for any phase shift caused by the power amplifier.

Abstract translation: 在相位和幅度调制传输环境中的平移环路调制器和功率放大器包括具有锁相环的平移环路，并且被配置为接收第一调制信号（PM），并且还被配置为提供频率特定调制信号。 本发明还包括被配置为接收频率特定调制信号的功率放大器，被配置为向功率放大器提供第二调制信号（AM）的可变增益元件和被配置为接收转换回路的输出的一部分的开关元件 和功率放大器的输出功率的一部分。 开关元件被配置为在第一时间段期间将平移环路的输出部分施加到平移环路的输入端，并且在第二时间周期期间将功率放大器的检测输出功率部分施加到平移环路的输入端， 从而允许平移环路中的锁相环校正由功率放大器引起的任何相移。

公开(公告)号：US06731167B2

公开(公告)日：2004-05-04

申请号：US09961250

申请日：2001-09-25

Applicant: Masashi Suzuki ,  Hitoshi Akamine ,  Tetsuaki Adachi ,  Takahiro Sato ,  Masashi Maruyama ,  Susumu Takada

Inventor： Masashi Suzuki ,  Hitoshi Akamine ,  Tetsuaki Adachi ,  Takahiro Sato ,  Masashi Maruyama ,  Susumu Takada

IPC: H03G516

CPC classification number: H01L27/0629 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49111 ,  H01L2224/49175 ,  H03F1/301 ,  H03F3/193 ,  H03F2200/294 ,  H03F2200/372 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40 ,  H01L2924/00014

Abstract: The number of components of a high frequency power amplifier is reduced. A bias resistance ratio is adjusted in accordance with a change in the threshold voltage Vth of a transistor. A high frequency power amplifier has a plurality of amplifying systems. Each of these systems has an input terminal to which a signal to be amplified is supplied, an output terminal, a bias terminal, a plurality of amplifying stages which are sequentially cascaded between the input and output terminals, and a bias circuit connected to the bias terminal and each of the amplifying stages to apply a bias potential to the amplifying stage. The amplifying stage includes a control terminal for receiving an input signal and the bias potential supplied to the stage and a first terminal for transmitting an output signal of the stage.

Abstract translation: 高频功率放大器的组件数量减少。 根据晶体管的阈值电压Vth的变化来调整偏置电阻比。 高频功率放大器具有多个放大系统。 这些系统中的每一个都具有供给要被放大的信号的输入端子，输出端子，偏置端子，在输入和输出端子之间顺序级联的多个放大级，以及连接到偏置的偏置电路 端子和每个放大级以向放大级施加偏置电位。 放大级包括用于接收输入信号和提供给级的偏置电位的控制端子和用于发送级的输出信号的第一端子。

公开(公告)号：US20120164965A1

公开(公告)日：2012-06-28

申请号：US13193255

申请日：2011-07-28

Applicant: Jeffrey Paul Solum

Inventor： Jeffrey Paul Solum

IPC: H04B17/00

CPC classification number: H04B1/1027 ,  H03G3/3052 ,  H03G2201/202 ,  H03G2201/206 ,  H04B1/109 ,  H04L27/3809

Abstract: One embodiment of the present subject matter includes a method of receiving an input signal. The method, in various embodiments, includes detecting a peak of the input signal and detecting an envelope of the input signal. In various embodiments, the peak and envelope are used to identify out-of-band blocking signals and to adjust gain control. The method also includes comparing the peak to a first threshold Tp and comparing the envelope to a second threshold Te. In the method, if the peak is above the first threshold and the envelope is below the second threshold, then ignoring the input signal. If the envelope is above the second threshold, the method includes applying automatic gain control to decode information encoded in the input signal.

Abstract translation: 本主题的一个实施例包括接收输入信号的方法。 在各种实施例中，该方法包括检测输入信号的峰值并检测输入信号的包络。 在各种实施例中，峰值和包络用于识别带外阻塞信号并调整增益控制。 该方法还包括将峰值与第一阈值Tp进行比较并将包络与第二阈值Te进行比较。 在该方法中，如果峰值高于第一阈值并且包络低于第二阈值，则忽略输入信号。 如果信封高于第二阈值，则该方法包括应用自动增益控制来对输入信号中编码的信息进行解码。

公开(公告)号：US07664211B2

公开(公告)日：2010-02-16

申请号：US11539524

申请日：2006-10-06

Applicant: Jeffrey Paul Solum

Inventor： Jeffrey Paul Solum

IPC: H04L27/08

CPC classification number: H04B1/1027 ,  H03G3/3052 ,  H03G2201/202 ,  H03G2201/206 ,  H04B1/109 ,  H04L27/3809

Abstract: One embodiment of the present subject matter includes a method of receiving an input signal. The method, in various embodiments, includes detecting a peak of the input signal and detecting an envelope of the input signal. In various embodiments, the peak and envelope are used to identify out-of-band blocking signals and to adjust gain control. The method also includes comparing the peak to a first threshold Tp and comparing the envelope to a second threshold Te. In the method, if the peak is above the first threshold and the envelope is below the second threshold, then ignoring the input signal. If the envelope is above the second threshold, the method includes applying automatic gain control to decode information encoded in the input signal.

Abstract translation: 本主题的一个实施例包括接收输入信号的方法。 在各种实施例中，该方法包括检测输入信号的峰值并检测输入信号的包络。 在各种实施例中，峰值和包络用于识别带外阻塞信号并调整增益控制。 该方法还包括将峰值与第一阈值Tp进行比较并将包络与第二阈值Te进行比较。 在该方法中，如果峰值高于第一阈值并且包络低于第二阈值，则忽略输入信号。 如果信封高于第二阈值，则该方法包括应用自动增益控制来对输入信号中编码的信息进行解码。