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48 条记录 (耗时 0.02 秒)

    High efficiency power amplifier
    41.
    发明授权
    High efficiency power amplifier 有权
    高效率功率放大器

    公开(公告)号：US09257948B2

    公开(公告)日：2016-02-09

    申请号：US14241503

    申请日：2012-08-29

    申请人： Masahiro Kamiyama ,  Ryo Ishikawa ,  Kazuhiko Honjo

    发明人： Masahiro Kamiyama ,  Ryo Ishikawa ,  Kazuhiko Honjo

    IPC分类号： H03F3/191 ,  H03F3/21 ,  H03F1/56 ,  H03F3/24 ,  H03F3/217 ,  H03F3/60 ,  H03F1/02 ,  H03F3/193

    CPC分类号： H03F3/21 ,  H03F1/0205 ,  H03F1/56 ,  H03F3/193 ,  H03F3/2171 ,  H03F3/245 ,  H03F3/601 ,  H03F2200/108 ,  H03F2200/222 ,  H03F2200/255 ,  H03F2200/306 ,  H03F2200/309 ,  H03F2200/315 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/399 ,  H03F2200/402 ,  H03F2200/423 ,  H03F2200/451

    摘要： A high efficiency power amplifier of the present invention includes a transistor and an output power processing circuit section. The output power processing circuit section includes an output matching circuit section and an output harmonic processing circuit section. The output matching circuit section carries out impedance matching to the fundamental wave component of the output power. The output harmonic processing circuit section carries out a reactive power control to a reactive power of a plurality of harmonic power components respectively having a plurality of harmonic angular frequencies which are integral multiples of the base angular frequency of the output power. The output harmonic processing circuit section is formed to realize the reactive power control to at least one of the plurality of harmonic power components by orthogonalizing the phases of the current and voltage in the reactive power.

    摘要翻译： 本发明的高效率功率放大器包括晶体管和输出功率处理电路部分。 输出功率处理电路部分包括输出匹配电路部分和输出谐波处理电路部分。 输出匹配电路部分对输出功率的基波分量进行阻抗匹配。 输出谐波处理电路部分对分别具有作为输出功率的基极角频率的整数倍的多个谐波角频率的多个谐波功率部件的无功功率进行无功功率控制。 输出谐波处理电路部分通过使无功功率中的电流和电压的相位正交化来实现对多个谐波功率分量中的至少一个的无功功率控制。

    HIGH EFFICIENCY POWER AMPLIFIER
    43.
    发明申请
    HIGH EFFICIENCY POWER AMPLIFIER 有权
    高效功率放大器

    公开(公告)号：US20140225671A1

    公开(公告)日：2014-08-14

    申请号：US14241503

    申请日：2012-08-29

    申请人： Masahiro Kamiyama ,  Ryo Ishikawa ,  Kazuhiko Honjo

    发明人： Masahiro Kamiyama ,  Ryo Ishikawa ,  Kazuhiko Honjo

    IPC分类号： H03F3/21

    CPC分类号： H03F3/21 ,  H03F1/0205 ,  H03F1/56 ,  H03F3/193 ,  H03F3/2171 ,  H03F3/245 ,  H03F3/601 ,  H03F2200/108 ,  H03F2200/222 ,  H03F2200/255 ,  H03F2200/306 ,  H03F2200/309 ,  H03F2200/315 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/399 ,  H03F2200/402 ,  H03F2200/423 ,  H03F2200/451

    摘要： A high efficiency power amplifier of the present invention includes a transistor and an output power processing circuit section. The output power processing circuit section includes an output matching circuit section and an output harmonic processing circuit section. The output matching circuit section carries out impedance matching to the fundamental wave component of the output power. The output harmonic processing circuit section carries out a reactive power control to a reactive power of a plurality of harmonic power components respectively having a plurality of harmonic angular frequencies which are integral multiples of the base angular frequency of the output power. The output harmonic processing circuit section is formed to realize the reactive power control to at least one of the plurality of harmonic power components by orthogonalizing the phases of the current and voltage in the reactive power.

    摘要翻译： 本发明的高效率功率放大器包括晶体管和输出功率处理电路部分。 输出功率处理电路部分包括输出匹配电路部分和输出谐波处理电路部分。 输出匹配电路部分对输出功率的基波分量进行阻抗匹配。 输出谐波处理电路部分对分别具有作为输出功率的基极角频率的整数倍的多个谐波角频率的多个谐波功率部件的无功功率进行无功功率控制。 输出谐波处理电路部分通过使无功功率中的电流和电压的相位正交化来实现对多个谐波功率分量中的至少一个的无功功率控制。

    Amplifier and communication apparatus
    44.
    发明授权
    Amplifier and communication apparatus 有权
    放大器和通讯装置

    公开(公告)号：US08019306B2

    公开(公告)日：2011-09-13

    申请号：US10580645

    申请日：2004-11-15

    申请人： Sachio Iida

    发明人： Sachio Iida

    IPC分类号： H04B1/18

    CPC分类号： H03F1/223 ,  H03F3/193 ,  H03F2200/294 ,  H03F2200/306 ,  H03F2200/372

    摘要： A wide-band amplifier includes a band-pass filter made of an LC parallel resonant circuit and an LCR series resonant circuit. Both the LC parallel resonant circuit and the LCR series resonant circuit are connected in parallel to a current amplifier device. The band-pass filter has a plurality of poles as well as zeros provided therebetween in the s-plane, where some of the zeros are situated at locations other than the s-plane origing to improve a characteristic flatness in a passband. The output terminal of the amplifier device serves as an output terminal for the amplifier, so that the problem of group delay does not occur. A capacitance element between the output terminal of the amplifier and GND absorbs parasitic capacitance as part of constants to prevent degradation of the frequency characteristic.

    摘要翻译： 宽带放大器包括由LC并联谐振电路和LCR串联谐振电路构成的带通滤波器。 LC并联谐振电路和LCR串联谐振电路都并联连接到电流放大器装置。 带通滤波器在s平面中具有多个极点以及其间设置的零点，其中一些零点位于除s平面以外的位置，以改善通带中的特征平坦度。 放大器装置的输出端子用作放大器的输出端子，从而不发生群延迟的问题。 放大器和GND的输出端之间的电容元件作为常数的一部分吸收寄生电容，以防止频率特性的降低。

    Multi-bit class-D power amplifier system
    45.
    发明授权
    Multi-bit class-D power amplifier system 有权
    多位D类功率放大器系统

    公开(公告)号：US07948312B2

    公开(公告)日：2011-05-24

    申请号：US12465550

    申请日：2009-05-13

    申请人： Zhiheng Cao

    发明人： Zhiheng Cao

    IPC分类号： H03F3/217

    CPC分类号： H03F3/2178 ,  H03F1/0277 ,  H03F1/26 ,  H03F3/191 ,  H03F3/211 ,  H03F3/2175 ,  H03F3/24 ,  H03F3/72 ,  H03F2200/306 ,  H03F2200/309 ,  H03F2200/372 ,  H03F2203/21169 ,  H03F2203/21172 ,  H03H7/48 ,  H03H11/36

    摘要： Techniques for designing an efficient power amplifier are described. In one aspect, multiple single unit instance class-D power amplifiers with coupled outputs are utilized to increase efficiency and reduce quantization noise. In another aspect, multiple groups of single unit instance class-D power amplifiers are coupled at the outputs thereof with each group of power amplifiers configured to resonate at unique frequency. This results in increased efficiency and reduction of quantization noise at multiple frequencies bands.

    摘要翻译： 描述了设计高效功率放大器的技术。 在一个方面，使用具有耦合输出的多个单个单元实例D类功率放大器来提高效率并降低量化噪声。 在另一方面，多组单个单元实例D类功率放大器在其输出处耦合，每组功率放大器被配置为以独特的频率谐振。 这导致在多个频带上提高效率和减少量化噪声。

    Switchable Multiband LNA Design
    46.
    发明申请
    Switchable Multiband LNA Design 有权
    可切换多频段LNA设计

    公开(公告)号：US20100301946A1

    公开(公告)日：2010-12-02

    申请号：US12599966

    申请日：2008-05-19

    申请人： Jonathan Borremans

    发明人： Jonathan Borremans

    IPC分类号： H03F1/34 ,  H03F1/22

    CPC分类号： H03F1/223 ,  H03F1/342 ,  H03F1/42 ,  H03F1/56 ,  H03F3/195 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/151 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/306 ,  H03F2200/378 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2203/7209

    摘要： A low noise amplifying (LNA) circuit comprising an amplifying section (11, 12) and a feedback means (14) arranged for providing input matching from the output to the input. The LNA circuit further comprises at least one frequency band determining inductor (15) having a predetermined resonance frequency for influencing at least one frequency band in which the amplifying section operates. The at least one inductor is directly connected to the output of the circuit and the feedback means (14) provides a feedback connection for the section (s) to the input. In this way, the at least one frequency band in which the amplifying section operates is substantially completely determined by the at least one frequency band determining inductor (15).

    摘要翻译： 一种低噪声放大（LNA）电路，包括放大部分（11,12）和反馈装置（14），反馈装置（14）用于提供从输出到输入的输入匹配。 LNA电路还包括具有预定谐振频率的至少一个频带确定电感器（15），用于影响放大部分工作的至少一个频带。 至少一个电感器直接连接到电路的输出端，并且反馈装置（14）提供用于输入端的部分的反馈连接。 以这种方式，放大部分工作的至少一个频带基本上完全由至少一个频带确定电感器（15）确定。

    High-frequency power amplifier module
    47.
    发明授权
    High-frequency power amplifier module 失效
    高频功率放大器模块

    公开(公告)号：US06384688B1

    公开(公告)日：2002-05-07

    申请号：US09673977

    申请日：2000-10-25

    申请人： Toru Fujioka ,  Isao Yoshida ,  Mineo Katsueda ,  Masatoshi Morikawa ,  Yoshikuni Matsunaga ,  Kenji Sekine ,  Osamu Kagaya

    发明人： Toru Fujioka ,  Isao Yoshida ,  Mineo Katsueda ,  Masatoshi Morikawa ,  Yoshikuni Matsunaga ,  Kenji Sekine ,  Osamu Kagaya

    IPC分类号： H03F304

    CPC分类号： H03F3/72 ,  H03F3/193 ,  H03F3/211 ,  H03F2200/306 ,  H03F2200/309 ,  H03F2200/39 ,  H03F2200/429 ,  H04B1/0053 ,  H04B1/0458

    摘要： A radio frequency power amplifier module for a dual-band type mobile communication apparatus that can transmit and receive the first frequency f1 and the second frequency f2 (f2=2×f1) is structured as explained below. This radio frequency power amplifier module for dual-band type mobile communication apparatus is comprised of a drive stage amplifier having the gain peaks at f1 and f2 with a matching circuit and a radio frequency power output circuit including a radio frequency power output transistor. The output circuit is constituted of a transmission line connected to the drain end of the output transistor, a parallel resonance circuit connected in series to the transmission line to resonate at the harmonics in the frequency twice the frequency f2, a series resonance circuit provided between one end of the resonance circuit and the ground to resonate at the harmonics in the frequency twice the frequency f2 and an output matching circuit provided in series to the other end of the parallel resonance circuit for the matching with f1 and f2. The transmission line is set to terminate at the drain end for the even number order harmonics of f2 with the reactance existing at the drain end and a circuit element constant forming the parallel resonance circuit is set to open at the drain end for the odd number order harmonics of f2 with the series resonance circuit, transmission line and reactance existing at the drain end. With the structure explained above, since harmonics power can be controlled through control of the predetermined harmonics, high efficiency and reduction in size of the radio frequency power amplifier module can be realized.

    摘要翻译： 可以发送和接收第一频率f1和第二频率f2（f2 = 2xf1）的用于双频带型移动通信装置的射频功率放大器模块如下所述地构成。该射频功率放大器模块用于双频 型移动通信装置包括具有匹配电路的具有在f1和f2的增益峰值的驱动级放大器和包括射频功率输出晶体管的射频功率输出电路。 输出电路由连接到输出晶体管的漏极端的传输线构成，并联谐振电路与传输线串联连接，以频率f2的频率谐振地谐振，串联谐振电路设置在一个 谐振电路的端部和谐振频率为频率f2的频率的谐波的接地和与并联谐振电路的另一端串联设置以用于与f1和f2匹配的输出匹配电路。 传输线被设置为在漏极端处终止，其中存在于漏极端处的电抗的偶数次谐波为f2，并且形成并联谐振电路的电路元件常数设置为在漏极端处为奇数阶开路 具有串联谐振电路的f2谐波，漏极端存在的传输线和电抗。通过上述结构，由于能够通过控制预定谐波来控制谐波功率，高效率和减小射频功率放大器的尺寸 模块可以实现。