公开(公告)号：JP2001127664A

公开(公告)日：2001-05-11

申请号：JP2000276259

申请日：2000-09-12

Applicant: MOTOROLA INC

Inventor： IYU K CHAN ,  SCHWENT DALE ,  MICHAEL RANDOHAA ,  KLOMSDORF ARMIN ,  HUNDT MICHAEL

IPC: H03H7/46 ,  H04B1/00 ,  H04B1/04 ,  H04B1/40

Abstract: PROBLEM TO BE SOLVED: To provide an RF coupler that is suitable for use in a multi-band wireless communication unit where duplicate in components of an RF power detector can be reduced. SOLUTION: A radio frequency(RF) coupler 312 suitable for use in a multi- band wireless communication unit 200 has a terminator 316 and couplers 314, 315. The couplers 314, 315 have passing path coupling elements 318, 320 and coupling path coupling elements 319, 321. The passing path coupling elements 318, 320 transmit RF signals transmitted by respective frequency bands TX band 1, TX band 2 in which the unit 200 is in operation. The coupling path coupling elements 319, 321 couple the RF signals transmitted by the respective passing path coupling elements 318, 320. The coupling path coupling elements 319, 321 and the terminator 316 are coupled in series thereby making compatible with an RF power detector 313 using a single detection diode 322.

公开(公告)号：JP2004140837A

公开(公告)日：2004-05-13

申请号：JP2003356305

申请日：2003-10-16

Applicant: Motorola Inc ,  モトローラ・インコーポレイテッドMotorola Incorporatred

Inventor： KLOMSDORF ARMIN ,  CONRAD CLARK ,  GREENE MATTHEW

IPC: H03F3/24 ,  H03F1/02 ,  H03F1/32 ,  H03F3/20 ,  H03G3/10 ,  H03G3/20 ,  H03G3/30 ,  H04B1/04 ,  H04Q7/32

CPC classification number: H03G3/3042 ,  H03F1/0261 ,  H03F1/0266 ,  H03F1/56 ,  H03F2200/321 ,  H03F2200/387 ,  H03F2200/405

Abstract: PROBLEM TO BE SOLVED: To provide a method and device for supplying load power at a plurality of different power levels.
SOLUTION: This method includes a transition between a high-power output and a low-power output of a power amplifier, when a signal with a common modulation format is amplified. A power amplifier, which outputs low power, is supplied with a bias different from a bias supplied to a power amplifier which outputs high power. The impedance at a low-power output is loaded to the amplifier, which is different from that given to a power amplifier which outputs high power. When there is at least one embodiment, the power amplifier is shifted between the high-power output and the low-power output at different threshold levels, depending on whether the amplifier transits from a high-power output to a low power output, or vice versa.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004166199A

公开(公告)日：2004-06-10

申请号：JP2003130339

申请日：2003-05-08

Applicant: Motorola Inc ,  モトローラ・インコーポレイテッドMotorola Incorporatred

Inventor： KLOMSDORF ARMIN ,  FOREST FRANCIS

IPC: H03G3/30 ,  H04B1/04 ,  H04B7/005 ,  H04B7/26 ,  H04W52/52 ,  H04J13/00

CPC classification number: H04W52/52 ,  H03G3/3042

Abstract: PROBLEM TO BE SOLVED: To solve the problem that when controlling transmission power according to transmission power information that is transmitted from a base station to a mobile station, large electric power is consumed so as to maintain the linearity of an RF signal.
SOLUTION: A transmission device generally comprises a processing component 310, a baseband controller 320, a linearization controller 330, a variable baseband source 340, and a radio frequency (RF) component 350. The variable baseband source 340 generates an RF signal based on a baseband signal. The processing component 310 generates a first control signal and a second control signal. The processing component 310 also supplies the baseband controller 320 with the first control signal for adjusting the variable baseband source 340, and the linearization controller 330 with the second control signal for adjusting the RF component 350.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2001068942A

公开(公告)日：2001-03-16

申请号：JP2000216760

申请日：2000-07-18

Applicant: MOTOROLA INC

Inventor： KLOMSDORF ARMIN ,  WINKELMANN LUKE EDWARD ,  MICHAEL RANDOHAARU

IPC: H03F3/24 ,  H03F1/02 ,  H03F1/56 ,  H03F3/20 ,  H03G3/02 ,  H04B1/18 ,  H04B1/52

Abstract: PROBLEM TO BE SOLVED: To provide a power amplification load adjustment system that accurately controls impedance provided to a power amplifier output with a variable impedance network over a wide range. SOLUTION: This system 200 is provided with an amplifier 32 and a variable impedance network 36 coupled with the output of this amplifier 32. The variable impedance network 36 provides a plurality of kinds of impedance sets to the output of the power amplifier 32 in response to a load control signal. A control circuit generates a transmission power command and a channel frequency command. A memory 40 stores a plurality of control variables as a function of the output power and the frequency. The variable impedance network 36, the control circuit and a processor 38 connected to the control circuit extract a plurality of control variables in response to the transmission power command and the channel frequency command and generate a load control signal by using them.

公开(公告)号：JP2001251202A

公开(公告)日：2001-09-14

申请号：JP2001002844

申请日：2001-01-10

Applicant: MOTOROLA INC

Inventor： KLOMSDORF ARMIN ,  WINKELMANN LUKE ,  SCHWENT DALE GERARD ,  GREENE MATTHEW

IPC: H04B1/04 ,  H04B1/40 ,  H04J3/00 ,  H04J13/00

Abstract: PROBLEM TO BE SOLVED: To provide a modulation format switch that is operated in many operating modes and realizes simplicity, miniaturization, reduction in the manufacturing cost, and enhancement of amplifier performance. SOLUTION: A modulation format switch (20) communicates a signal with an amplifier (15) and a load (25). The amplifier generates modulation format signals. The modulation format switch (20) includes at least one matching network (62, 100), that communicates a signal with the amplifier (15) and the load (25). At least one matching network can have impedance values corresponding to a plurality of the modulation format signals. Furthermore, the modulation format switch (20) also includes variable control elements (70, 72, 74, 76, 102) in the matching network (62, 100). The variable control elements (70, 72, 74, 76, 102) may have one or more impedance values.

公开(公告)号：JP2001068940A

公开(公告)日：2001-03-16

申请号：JP2000206604

申请日：2000-07-07

Applicant: MOTOROLA INC

Inventor： KLOMSDORF ARMIN ,  ALBERTH WILLIAM ,  WINKELMANN LUKE

IPC: H03F3/24 ,  H03F1/02 ,  H03F1/32 ,  H03F3/20 ,  H03G3/20 ,  H04B1/04

Abstract: PROBLEM TO BE SOLVED: To provide a power amplifier that more accurately controls power of an adjacent channel and a next to the adjacent channel transmitted by the power amplifier over a broad band. SOLUTION: This power amplifier circuit adjusts a load to control power of an adjacent channel and of a next to the adjacent channel. A power amplifier 172 amplifies an input signal to generate an amplified signal. A variable impedance network 174 provides a different impedance to an output of the power amplifier 172 in response to a load control signal. A peak detector 180 provides an instruction of a peak average ratio of the amplified signal. The peak detector 180 and a controller 184 connected to the variable impedance network 174 generate a load control signal in response to the instruction of the peak average ratio.

公开(公告)号：WO2004012343A3

公开(公告)日：2004-05-06

申请号：PCT/US0323007

申请日：2003-07-22

Applicant: MOTOROLA INC

Inventor： ALBERTH WILLIAM JR ,  KLOMSDORF ARMIN ,  STENGEL ROBERT

IPC: H04B1/40 ,  H04B1/38

CPC classification number: H04B1/001 ,  H04B1/0003 ,  H04B1/406

Abstract: A radio communications device 100 including a processor 120 having a digital signal processor (DSP) coupled to a transceiver 110. The transceiver includes a digital-to-phase synthesizer having one or more independently variable frequency or phase signal outputs coupled to a transmitter and/or to a receiver. The variable frequency and phase outputs of the digital-to phase synthesizer are mixed with corresponding received signals and are capable of frequency or phase modulating information signals for transmission. Amplitude modulated signals may be provided through polar modulation by combining synthesizer outputs at a summer.

Abstract translation: 包括具有耦合到收发机110的数字信号处理器（DSP）的处理器120的无线电通信设备100.该收发机包括数字 - 相位合成器，其具有耦合到发射机的一个或多个独立可变频率或相位信号输出和/ 或接收器。 数字 - 相位合成器的可变频率和相位输出与相应的接收信号混合，并且能够对用于传输的信息信号进行频率或相位调制。 幅度调制信号可以通过在夏季组合合成器输出通过极坐标调制来提供。

公开(公告)号：WO2005018088A3

公开(公告)日：2009-03-26

申请号：PCT/US2004024447

申请日：2004-07-29

Applicant: MOTOROLA INC ,  CONRAD CLARK W ,  KLOMSDORF ARMIN ,  SCHIRMANN ERNEST

Inventor： CONRAD CLARK W ,  KLOMSDORF ARMIN ,  SCHIRMANN ERNEST

IPC: H03F1/14 ,  H03F1/02 ,  H03F1/56 ,  H03F3/21 ,  H03F3/72

CPC classification number: H03F3/211 ,  H03F1/02 ,  H03F1/0211 ,  H03F1/0261 ,  H03F1/0277 ,  H03F1/56 ,  H03F3/72 ,  H03F2200/303 ,  H03F2200/391 ,  H03F2200/417 ,  H03F2203/7227

Abstract: A power amplification circuit (10) includes a scalable power amplifier (20) to produce an RF output signal (50) at an output of the power amplification circuit (10), and a variable impedance circuit (30) coupled to the output of the power amplification circuit (10). The scalable power amplifier (20) includes a plurality of selectively activated amplifier elements (22), (24), (26) to produce the RF output signal (50) in accordance with a desired RF output signal power level. The power amplification circuit (10) selectively activates individual amplifier elements by, for example reducing power or increasing power to at least one amplifier element. The variable impedance circuit (30) varies an impedance of the variable impedance circuit (30) to dynamically load the output of the scalable power amplifier(20).

Abstract translation: 功率放大电路（10）包括可扩展功率放大器（20），以在功率放大电路（10）的输出处产生RF输出信号（50），以及可变阻抗电路（30），耦合到所述功率放大电路 功率放大电路（10）。 可扩展功率放大器（20）包括多个选择性激活的放大器元件（22），（24），（26），以根据期望的RF输出信号功率电平产生RF输出信号（50）。 功率放大电路（10）通过例如降低功率或增加至少一个放大器元件的功率来选择性地激活各个放大器元件。 可变阻抗电路（30）改变可变阻抗电路（30）的阻抗，以动态地加载可伸缩功率放大器（20）的输出。

公开(公告)号：DE10035060B4

公开(公告)日：2005-06-23

申请号：DE10035060

申请日：2000-07-17

Applicant: MOTOROLA INC

Inventor： KLOMSDORF ARMIN ,  ALBERTH WILLIAM P ,  WINKELMANN LUKE

IPC: H03F3/24 ,  H03F1/02 ,  H03F1/32 ,  H03F3/20 ,  H03G3/20 ,  H04B1/04 ,  H03F3/21 ,  H03G3/30

Abstract: A power amplifying circuit with load adjust for control of adjacent and alternate channel power. A power amplifier amplifies an input signal to produce an amplified signal. A variable impedance network presents different impedances to the output of the power amplifier responsive to a load control signal. A peak-to-average detector provides an indication of a peak-to-average ratio of the amplified signal. A controller coupled to the peak-to-average detector and the variable impedance network produces the load control signal responsive to the indication of the peak-to-average ratio.

公开(公告)号：AU2003256687A1

公开(公告)日：2004-02-16

申请号：AU2003256687

申请日：2003-07-22

Applicant: MOTOROLA INC

Inventor： KLOMSDORF ARMIN ,  STENGEL ROBERT ,  ALBERTH WILLIAM JR

IPC: H04B1/40

Abstract: A radio communications device 100 including a processor 120 having a digital signal processor (DSP) coupled to a transceiver 110. The transceiver includes a digital-to-phase synthesizer having one or more independently variable frequency or phase signal outputs coupled to a transmitter and/or to a receiver. The variable frequency and phase outputs of the digital-to phase synthesizer are mixed with corresponding received signals and are capable of frequency or phase modulating information signals for transmission. Amplitude modulated signals may be provided through polar modulation by combining synthesizer outputs at a summer.