公开(公告)号：US06803837B2

公开(公告)日：2004-10-12

申请号：US10438045

申请日：2003-05-15

Applicant: Kaoru Ishida ,  Masayuki Miyaji ,  Hiroaki Kosugi ,  Shin'ichi Kugou

Inventor： Kaoru Ishida ,  Masayuki Miyaji ,  Hiroaki Kosugi ,  Shin'ichi Kugou

IPC: H01P512

CPC classification number: H01P5/10 ,  H01P5/12 ,  H03F3/602

Abstract: A balun design incorporating the functions of a splitter (combiner) which can be employed in a high power amplifier circuit configuration. The balun is formed of a dielectric multilayer board with conductor patterns on each conductor pattern layer. The balun includes the propagation of a half of an input signal to an in-phase output terminal, and also propagating a fourth of the input signal to first and second opposite-phase output terminals, the signal propagated to the first and second opposite-phase output terminals lagging 180 degrees behind the signal propagated to the in-phase output terminal. The balun provides the output signals at the first and second opposite-phase output terminals 180° out of phase employing through holes in the main line and coupling lines for promoting electromagnetic coupling therebetween.

Abstract translation: 平衡 - 不平衡变压器设计结合了可用于高功率放大器电路配置的分路器（组合器）的功能。 平衡 - 不平衡变换器由在每个导体图案层上具有导体图案的电介质多层板形成。 平衡 - 不平衡变换器包括将输入信号的一半传播到同相输出端子，并且还将第四输入信号传播到第一和第二反相输出端子，该信号传播到第一和第二相位相位 输出端子滞后于传播到同相输出端子的信号后方180度。 平衡 - 不平衡变压器在第一和第二反相输出端子处提供输出信号，180°异相采用主线中的通孔和用于促进电磁耦合的连接线。

公开(公告)号：US06750706B2

公开(公告)日：2004-06-15

申请号：US10167687

申请日：2002-06-11

Applicant: Kaoru Ishida ,  Toshimitsu Matsuyoshi ,  Naoki Takachi ,  Yuji Saito

Inventor： Kaoru Ishida ,  Toshimitsu Matsuyoshi ,  Naoki Takachi ,  Yuji Saito

IPC: H03F366

CPC classification number: H03F1/3235 ,  H03F1/3229 ,  H03F2201/3212

Abstract: A method of controlling a feedforward distortion compensation amplifier has steps of detecting a distortion component generated in a main amplifier by coupling a signal branched from a signal input to the main amplifier and containing a plurality of carriers of different frequencies to a signal branched from an output signal from the main amplifier so that the coupling causes the carrier components to cancel each other, recoupling the signal resulting from the coupling to the output signal from the main amplifier, and adjusting an amplitude and phase of at least one of the signals to be recoupled so that distortion components cancel each other upon recoupling, wherein a first and second pilot signals obtained from a first and second pilot signal sources are inserted into the input signal to or output signal from the main amplifier, parts of the signal resulting from the recoupling are taken out through branching, and the signals taken out through branching are mixed with the first and second pilot signals, respectively, and thus down-converted to generate down convert signals so that control signals to adjust the amplitude and phase are generated according to the down convert signals.

Abstract translation: 控制前馈失真补偿放大器的方法具有通过将从输入信号分支到主放大器并将不同频率的多个载波分支的信号耦合到从输出信号分支的信号来检测在主放大器中产生的失真分量的步骤 使得耦合使得载波分量彼此抵消，将耦合产生的信号重新耦合到来自主放大器的输出信号，并且调整要重新耦合的至少一个信号的振幅和相位，从而 该失真分量在重新耦合时彼此抵消，其中从第一和第二导频信号源获得的第一和第二导频信号被插入到主放大器的输入信号中或从主放大器输出信号，取出由重新耦合产生的信号的部分 通过分支输出，并且通过分支取出的信号与第一和第二部分混合 并且因此下变频以产生下变频信号，从而根据降频转换信号产生调节幅度和相位的控制信号。

公开(公告)号：US06421530B1

公开(公告)日：2002-07-16

申请号：US08933848

申请日：1997-09-19

Applicant: Hisashi Adachi ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Hiroshi Haruki ,  Junichi Yasuno ,  Kazuhiko Ikeda

Inventor： Hisashi Adachi ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Hiroshi Haruki ,  Junichi Yasuno ,  Kazuhiko Ikeda

IPC: H04B140

CPC classification number: H04B1/403

Abstract: The present invention concerns a radio circuit including a local oscillator, a first receive frequency converter, a frequency divider and a demodulator. A receive signal and an output of the local oscillator are input to the first receive frequency converter. The receive signal is converted into a first intermediate signal by the first receive frequency converter, and the first intermediate frequency signal is input to the demodulator. The output of the local oscillator is frequency-divided by the frequency divider and also input to the demodulator. The signal converted into the first intermediate frequency is demodulated into a baseband signal by the demodulator.

Abstract translation: 本发明涉及包括本地振荡器，第一接收频率转换器，分频器和解调器的无线电电路。 接收信号和本地振荡器的输出被输入到第一接收变频器。 接收信号由第一接收频率转换器转换成第一中间信号，第一中频信号被输入到解调器。 本地振荡器的输出由分频器分频，并输入到解调器。 转换成第一中频的信号由解调器解调为基带信号。

公开(公告)号：US5973557A

公开(公告)日：1999-10-26

申请号：US950859

申请日：1997-10-15

Applicant: Masayuki Miyaji ,  Kaoru Ishida ,  Hiroaki Kosugi ,  Yoichi Morinaga ,  Hidenobu Kato ,  Takashi Enoki

Inventor： Masayuki Miyaji ,  Kaoru Ishida ,  Hiroaki Kosugi ,  Yoichi Morinaga ,  Hidenobu Kato ,  Takashi Enoki

IPC: H03F1/02 ,  H03F3/72 ,  H04B1/04 ,  H04B1/40 ,  H03F1/14 ,  H03F3/68

CPC classification number: H03F3/72 ,  H03F1/0277 ,  H03F2203/7236 ,  H03F2203/7239 ,  H04B1/0458 ,  H04B1/406 ,  H04B2001/045

Abstract: The invention presents a high efficiency linear power amplifier of plural frequency bands reduced in the number of parts and elements, simplified in the circuit construction, and saved in the circuit space, and in FIG. 1, signals entering from a common input terminal 1 in frequency bands A and B are matched in both frequency bands A and B in a wide band matching network 2, amplified in a pre-amplifier 3, put into a common terminal 4a of a switch circuit 4, and the signal in frequency band A is put into a changeover terminal 4b, matched in a matching network 5 and amplified in a post-amplifier 6, and its output is matched in a post-matching network 7 and sent out into an output terminal 8, while, similarly, the signal in frequency band B is put into other changeover terminal 4c of the switch circuit 4, matched in a matching network 9, amplified in a post-amplifier 10, and its output is matched in a post-matching network 11 and is sent out into an output terminal 12.The invention also presents a power amplifier capable of maintaining a similar high efficiency characteristic if the output power is lowered from the output power of maximum efficiency, and in FIG. 10, first and second power amplifiers 113, 114 are disposed in parallel, and a necessary number of power amplifiers are connected depending on a required output power by switch circuits 115 to 118, and the power source is turned on only in the connected power amplifiers, while the other power amplifiers are turned off, and therefore by the lowering portion of the output power, the current consumption decreases in proportion, so that the equivalent high efficiency operation same as in the case maximum efficiency is realized.

Abstract translation: 本发明提出了一种减少零件和元件数量的多个频带的高效线性功率放大器，简化了电路结构，并节省在电路空间中。 如图1所示，在宽频带匹配网络2中的频带A和B中的频带A和B中从公共输入端子1进入的信号被匹配，在前置放大器3中放大，放入开关的公共端子4a 电路4，并且将频带A中的信号放入转换端子4b中，在匹配网络5中匹配并在后置放大器6中放大，并且其输出在后匹配网络7中匹配并发送到 输出端子8，同样地，将频带B中的信号放入开关电路4的其他转换端子4c中，在匹配网络9中匹配，在后置放大器10中放大，并且其输出在后置 - 匹配网络11并被发送到输出端子12.本发明还提供了一种如果输出功率从最大效率的输出功率降低而能够保持类似的高效率特性的功率放大器，并且在图1中， 如图10所示，第一和第二功率放大器113,114并联设置，并且必要数量的功率放大器根据所需的输出功率被开关电路115至118连接，并且仅在连接的功率放大器中接通电源 而其他功率放大器关闭，因此通过输出功率的下降部分，电流消耗成比例地减小，从而实现与最大效率情况相同的等效高效率操作。

公开(公告)号：US5901345A

公开(公告)日：1999-05-04

申请号：US056446

申请日：1998-04-06

Applicant: Hikaru Ikeda ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Nobuo Fuse ,  Hideki Yagita ,  Hiroshi Haruki

Inventor： Hikaru Ikeda ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Nobuo Fuse ,  Hideki Yagita ,  Hiroshi Haruki

IPC: H03F3/24 ,  H03F3/21 ,  H03F3/60 ,  H04B1/04 ,  H03F3/68

CPC classification number: H03F3/211 ,  H03F3/604

Abstract: The output of a digital modulator is put into a power amplifying device, is distributed into n pieces in an n-power divider in the power amplifier, passes through n input phase shifters differing individually in the phase change amount, is amplified by n power amplifiers, passes through n output phase shifters to match the phase of n signals, is combined in an n-power combiner, and is issued from an output terminal to a phase shifter, and the output of the phase shifter is issued to a transmission antenna. Herein, the phase value of the phase shifter is determined so as to extend the region of the output load impedance for satisfying the specific value of unwanted radiation, and so that the output load impedance range of the load impedance of the power amplifier may be optimize to the impedance change range of the trans missionantenna, thereby eliminating the isolator and presenting a transmitting device of a portable wireless system realizing smaller size, higher performance, and lower cost of portable wireless system.

Abstract translation: 数字调制器的输出放入功率放大装置中，在功率放大器的n功率分配器中分配成n个片段，通过相位变化量不同的n个输入移相器，由n个功率放大器 ，通过n个输出移相器以匹配n个信号的相位，被组合在n个功率组合器中，并且从输出端子发送到移相器，并且将移相器的输出发送到发送天线。 这里，确定移相器的相位值，以便扩大输出负载阻抗的区域以满足不需要的辐射的特定值，并且使得功率放大器的负载阻抗的输出负载阻抗范围可以被优化 到传输天线的阻抗变化范围，从而消除了隔离器并呈现便携式无线系统的发送装置，实现便携式无线系统的更小的尺寸，更高的性能和更低的成本。

公开(公告)号：US08442153B2

公开(公告)日：2013-05-14

申请号：US13381226

申请日：2010-05-19

Applicant: Mikihiro Shimada ,  Kaoru Ishida ,  Hiroshi Komori

Inventor： Mikihiro Shimada ,  Kaoru Ishida ,  Hiroshi Komori

IPC: H04L27/04

CPC classification number: H03F1/0227 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/324 ,  H03F2200/336 ,  H04B2001/0416

Abstract: A transmission circuit (100) according to the present invention includes an RF-IC (110), an EM-IC (120), and a power amplifier (130). The EM-IC (120) includes a DC-DC converter (123), a transistor (124), a low-dropout regulator (121), and a regulator output selector switch (122). After an elapse of a predetermined time from a time when an operation mode of the transmission circuit has switched from a polar modulation mode to a quadrature modulation mode to a time when a power supply voltage for the quadrature modulation mode output from the DC-DC converter (123) stabilizes at a desired value, the regulator output selector switch (122) switches a connection destination of a gate of the transistor (124) to a fixed potential, and outputs as a control voltage the power supply voltage for the quadrature modulation mode output from the DC-DC converter (123).

Abstract translation: 根据本发明的传输电路（100）包括RF-IC（110），EM-IC（120）和功率放大器（130）。 EM-IC（120）包括DC-DC转换器（123），晶体管（124），低压差稳压器（121）和调节器输出选择器开关（122）。 在从发送电路的操作模式从极调制模式切换到正交调制模式的时间经过预定时间之后到从DC-DC转换器输出的正交调制模式的电源电压 （123）稳定在期望值时，调节器输出选择器开关（122）将晶体管（124）的栅极的连接目的地切换到固定电位，并将用于正交调制模式的电源电压作为控制电压输出 从DC-DC转换器（123）输出。

公开(公告)号：US20120140852A1

公开(公告)日：2012-06-07

申请号：US13388495

申请日：2010-04-07

Applicant: Akira Kato ,  Kaoru Ishida

Inventor： Akira Kato ,  Kaoru Ishida

IPC: H04L27/36

CPC classification number: H03F1/30 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/331 ,  H03F2200/336 ,  H03F2200/405 ,  H03F2200/447 ,  H03F2200/451 ,  H03G3/3042 ,  H04B1/0475

Abstract: A transmitter circuit includes a first synthesizer section, and a second synthesizer section which consumes less current than the first synthesizer section. The transmitter circuit performs switching such that the first synthesizer section is operated and the second synthesizer section is powered off in polar modulation, and the second synthesizer section is operated and the first synthesizer section is powered off in quadrature modulation, thereby reducing consumed power. While the first synthesizer section is operating, calibration for an oscillation frequency is performed, and when the operation is stopped, a calibration value is stored. When an operation of the first synthesizer section is restarted, the stored calibration value is corrected by using temperature change, thereby enhancing calibration accuracy and preventing degradation in quality of a transmission signal.

Abstract translation: 发射机电路包括第一合成器部分和与第一合成器部分相比消耗更少电流的第二合成器部分。 发射机电路进行切换，使得第一合成器部分被操作，并且第二合成器部分在极性调制中被断电，并且第二合成器部分被操作，并且第一合成器部分在正交调制中被断电，从而降低了功耗。 当第一合成器部分工作时，执行振荡频率的校准，当操作停止时，存储校准值。 当重新启动第一合成器部分的操作时，通过使用温度变化来校正存储的校准值，从而提高校准精度并防止传输信号的质量劣化。

公开(公告)号：US20120114075A1

公开(公告)日：2012-05-10

申请号：US13381226

申请日：2010-05-19

Applicant: Mikihiro Shimada ,  Kaoru Ishida ,  Hiroshi Komori

Inventor： Mikihiro Shimada ,  Kaoru Ishida ,  Hiroshi Komori

IPC: H04L27/36

CPC classification number: H03F1/0227 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/324 ,  H03F2200/336 ,  H04B2001/0416

Abstract: A transmission circuit (100) according to the present invention includes an RF-IC (110), an EM-IC (120), and a power amplifier (130). The EM-IC (120) includes a DC-DC converter (123), a transistor (124), a low-dropout regulator (121), and a regulator output selector switch (122). After an elapse of a predetermined time from a time when an operation mode of the transmission circuit has switched from a polar modulation mode to a quadrature modulation mode to a time when a power supply voltage for the quadrature modulation mode output from the DC-DC converter (123) stabilizes at a desired value, the regulator output selector switch (122) switches a connection destination of a gate of the transistor (124) to a fixed potential, and outputs as a control voltage the power supply voltage for the quadrature modulation mode output from the DC-DC converter (123).

Abstract translation: 根据本发明的传输电路（100）包括RF-IC（110），EM-IC（120）和功率放大器（130）。 EM-IC（120）包括DC-DC转换器（123），晶体管（124），低压差稳压器（121）和调节器输出选择器开关（122）。 在从发送电路的操作模式从极调制模式切换到正交调制模式的时间经过预定时间之后到从DC-DC转换器输出的正交调制模式的电源电压 （123）稳定在期望值时，调节器输出选择器开关（122）将晶体管（124）的栅极的连接目的地切换到固定电位，并将用于正交调制模式的电源电压作为控制电压输出 从DC-DC转换器（123）输出。

公开(公告)号：US20120108187A1

公开(公告)日：2012-05-03

申请号：US13381240

申请日：2010-04-01

Applicant: Ryo Kitamura ,  Kaoru Ishida ,  Mikihiro Shimada ,  Hiroshi Komori

Inventor： Ryo Kitamura ,  Kaoru Ishida ,  Mikihiro Shimada ,  Hiroshi Komori

IPC: H04B1/04

CPC classification number: H03F1/0261 ,  H03F1/304 ,  H03F1/32 ,  H03F3/245 ,  H03F2200/108 ,  H03F2200/18 ,  H03F2200/408 ,  H03F2200/468

Abstract: A transmitter circuit is provided which is capable of reducing modulation distortion even when an output power of a power amplifying section 141 is low. A signal generation section 11 generates an amplitude signal and a phase signal. A regulator 12 outputs a current based on the amplitude signal. A phase modulation section 13 phase-modulates the phase signal, and outputs a phase-modulated signal. The power amplifying section 141 receives the current which is based on the amplitude signal and supplied as a bias current from the regulator 12, and amplifies the phase-modulated signal by using the supplied current. Further, to the power amplifying section 141, a predetermined DC voltage is supplied as a collector voltage.

Abstract translation: 提供一种即使当功率放大部分141的输出功率低时也能够降低调制失真的发射机电路。 信号生成部11生成振幅信号和相位信号。 调节器12基于振幅信号输出电流。 相位调制部13对相位信号进行相位调制，并输出相位调制信号。 功率放大部分141接收基于振幅信号并作为偏置电流从调节器12提供的电流，并且通过使用所提供的电流来放大相位调制信号。 此外，向功率放大部141提供预定的DC电压作为集电极电压。

公开(公告)号：US20120105151A1

公开(公告)日：2012-05-03

申请号：US13383609

申请日：2011-05-13

Applicant: Maki Nakamura ,  Kaoru Ishida

Inventor： Maki Nakamura ,  Kaoru Ishida

IPC: H03G3/20

CPC classification number: H04B1/0475 ,  H03F1/02 ,  H03F1/0211 ,  H03F3/24 ,  H03F2200/105 ,  H04B1/406 ,  H04B2001/045

Abstract: Provided is a transmission circuit capable of compensating a variation in output power caused due to a temperature change or an individual variability when the operation mode is switched without an increase in the size of the transmission circuit which switches the operation mode between a linear operation mode and a nonlinear operation mode, and capable of suppressing the deterioration of the quality of a transmission signal. In the transmission circuit, a gain setting section (160) sets the gain (target gain) of a variable gain amplifier (140), to a value which enables the variable gain amplifier (140) to operate linearly and corresponds to a comparison result (output error level) obtained through comparison between the target level of the variable gain amplifier (140) corresponding to the set power level of the transmission signal and the power level of an output signal of the variable gain amplifier (140) detected by a power detection section (150). The variable gain amplifier (140) amplifies an amplitude phase modulation signal or a phase modulation signal (phase path signal) in accordance with the target gain set by the gain setting section (160).

Abstract translation: 提供了一种传输电路，其能够补偿当切换操作模式时由于温度变化或单独变化而引起的输出功率的变化，而不增加在线性操作模式和线性操作模式之间切换操作模式的传输电路的尺寸 非线性运算模式，能够抑制发送信号质量的恶化。 在发送电路中，增益设定部（160）将可变增益放大器（140）的增益（目标增益）设定为允许可变增益放大器（140）线性运行并对应于比较结果（ 输出误差电平），其与通过发送信号的设定功率电平相对应的可变增益放大器（140）的目标电平与通过功率检测检测到的可变增益放大器（140）的输出信号的功率电平 （150）。 可变增益放大器（140）根据由增益设定部（160）设定的目标增益来放大幅度相位调制信号或相位调制信号（相位路径信号）。