Radio frequency power amplifier
    1.
    发明授权
    Radio frequency power amplifier 有权
    射频功率放大器

    公开(公告)号:US08558622B2

    公开(公告)日:2013-10-15

    申请号:US13379450

    申请日:2010-07-09

    IPC分类号: H03F3/191

    摘要: A radio frequency power amplifier includes a transistor and amplifies a radio frequency signal of a first frequency; an input matching circuit connected to an input terminal of the transistor; and an output matching circuit connected to an output terminal of the transistor. A reactance control circuit includes one end connected to the output terminal of the transistor, and the other end connected to an input terminal of an output matching circuit and a bias terminal. The reactance control circuit has a reactance which resonates at a second frequency with a parasitic capacitance of the transistor at the output terminal of the transistor, and the second frequency is identical or close to the first frequency.

    摘要翻译: 射频功率放大器包括晶体管,并放大第一频率的射频信号; 连接到晶体管的输入端的输入匹配电路; 以及连接到晶体管的输出端子的输出匹配电路。 电抗控制电路包括连接到晶体管的输出端的一端,另一端连接到输出匹配电路和偏置端的输入端。 电抗控制电路具有以第二频率与晶体管的输出端子处的晶体管的寄生电容谐振的电抗,第二频率与第一频率相同或接近。

    Radio frequency amplifier circuit
    2.
    发明授权
    Radio frequency amplifier circuit 有权
    射频放大电路

    公开(公告)号:US08525594B2

    公开(公告)日:2013-09-03

    申请号:US13394974

    申请日:2011-06-09

    IPC分类号: H03F3/16

    摘要: A radio frequency amplifier circuit according to the present invention is for providing a radio frequency amplifier circuit with high output and high efficiency, and includes (i) a first harmonic processing circuit (102) and (ii) a second harmonic processing circuit (103) which are connected to an output terminal of transistors (101), and a (iii) fundamental matching circuit (104) connected to a downstream of the first harmonic processing circuit (102) and the second harmonic processing circuit (103). The radio frequency amplifier circuit includes plural first harmonic processing circuits (102) and plural second harmonic processing circuits (103).

    摘要翻译: 根据本发明的射频放大器电路用于提供高输出和高效率的射频放大器电路,并且包括(i)第一谐波处理电路(102)和(ii)二次谐波处理电路(103) 连接到第一谐波处理电路(102)和第二谐波处理电路(103)的下游的晶体管(101)的输出端子和(iii)基波匹配电路(104)。 射频放大器电路包括多个第一谐波处理电路(102)和多个二次谐波处理电路(103)。

    Spread-spectrum high-frequency heating device
    3.
    发明授权
    Spread-spectrum high-frequency heating device 有权
    扩频高频加热装置

    公开(公告)号:US08330085B2

    公开(公告)日:2012-12-11

    申请号:US12745825

    申请日:2009-05-08

    IPC分类号: H05B6/68

    摘要: A variable-frequency oscillator 1, a semiconductor power amplifier 2 for amplifying the output of the variable-frequency oscillator 1; a radiator 3 for radiating an electromagnetic wave for heating based on the output of the semiconductor power amplifier 2; a reflected wave monitoring circuit 5 for detecting a reflected wave of the electromagnetic wave for heating; and a controller 7 for controlling the oscillation frequency of the variable-frequency oscillator 1 are provided. The controller 7 changes the oscillation frequencies of the variable-frequency oscillator 1 discontinuously, thereby getting a frequency-hopping spread-spectrum radiation done by the radiator 3. The electromagnetic wave radiated by the radiator 3 irradiates an object 9 to be heated (which is usually food) inside a heating chamber 8, thereby heating the object.

    摘要翻译: 可变频率振荡器1,用于放大可变频率振荡器1的输出的半导体功率放大器2; 基于半导体功率放大器2的输出辐射用于加热的电磁波的散热器3; 用于检测用于加热的电磁波的反射波的反射波监视电路5; 并且设置有用于控制可变频率振荡器1的振荡频率的控制器7。 控制器7不连续地改变可变频率振荡器1的振荡频率,从而获得由散热器3完成的跳频扩频辐射。由散热器3辐射的电磁波照射被加热物(即 通常是食物),从而加热物体。

    SPREAD-SPECTRUM HIGH-FREQUENCY HEATING DEVICE
    4.
    发明申请
    SPREAD-SPECTRUM HIGH-FREQUENCY HEATING DEVICE 有权
    传播频率高频加热装置

    公开(公告)号:US20100243645A1

    公开(公告)日:2010-09-30

    申请号:US12745825

    申请日:2009-05-08

    IPC分类号: H05B6/68

    摘要: A variable-frequency oscillator 1, a semiconductor power amplifier 2 for amplifying the output of the variable-frequency oscillator 1; a radiator 3 for radiating an electromagnetic wave for heating based on the output of the semiconductor power amplifier 2; a reflected wave monitoring circuit 5 for detecting a reflected wave of the electromagnetic wave for heating; and a controller 7 for controlling the oscillation frequency of the variable-frequency oscillator 1 are provided. The controller 7 changes the oscillation frequencies of the variable-frequency oscillator 1 discontinuously, thereby getting a frequency-hopping spread-spectrum radiation done by the radiator 3. The electromagnetic wave radiated by the radiator 3 irradiates an object 9 to be heated (which is usually food) inside a heating chamber 8, thereby heating the object.

    摘要翻译: 可变频率振荡器1,用于放大可变频率振荡器1的输出的半导体功率放大器2; 基于半导体功率放大器2的输出辐射用于加热的电磁波的散热器3; 用于检测用于加热的电磁波的反射波的反射波监视电路5; 并且设置有用于控制可变频率振荡器1的振荡频率的控制器7。 控制器7不连续地改变可变频率振荡器1的振荡频率,从而获得由散热器3完成的跳频扩频辐射。由散热器3辐射的电磁波照射被加热物(即 通常是食物),从而加热物体。

    Bulk acoustic resonator and filter element
    8.
    发明授权
    Bulk acoustic resonator and filter element 失效
    体积声共振器和滤芯

    公开(公告)号:US07619493B2

    公开(公告)日:2009-11-17

    申请号:US11590804

    申请日:2006-11-01

    IPC分类号: H03H9/15 H03H9/54

    摘要: A bulk acoustic resonator has an acoustic reflector portion formed on a substrate and including one or more low acoustic impedance layers and one or more high acoustic impedance layers having a higher acoustic impedance than the low acoustic impedance layer which are disposed in stacked relation and an acoustic resonator portion formed on the acoustic reflector portion and having a piezoelectric film. At least one of the low acoustic impedance layers is made of silicon.

    摘要翻译: 体声波谐振器具有形成在基板上的声反射器部分,并且包括一个或多个低声阻抗层和一个或多个具有比低声阻抗层更高的声阻抗层的高声阻抗层,它们以堆叠关系设置, 谐振器部分形成在声反射器部分上并具有压电膜。 低声阻抗层中的至少一个由硅制成。

    Radio frequency power amplifier
    9.
    发明授权
    Radio frequency power amplifier 有权
    射频功率放大器

    公开(公告)号:US08947166B2

    公开(公告)日:2015-02-03

    申请号:US13824425

    申请日:2012-05-22

    摘要: A radio frequency power amplifier includes: an amplifying element which amplifies an input signal and outputs the signal from an output terminal; and an output load circuit which includes a first resonant circuit and a second resonant circuit that are connected to the output terminal. The first resonant circuit has a resonance frequency higher than the frequency of the second harmonic of the input signal, and the second resonant circuit has a resonance frequency lower than the frequency of the third harmonic of the input signal. The output load circuit has such an impedance looking from the output terminal that a phase of a reflection coefficient at the second harmonic of the input signal is greater than 180 degrees and less than 360 degrees, and a phase of a reflection coefficient at the third harmonic of the input signal is greater than 0 degrees and less than 180 degrees.

    摘要翻译: 射频功率放大器包括:放大元件,其对输入信号进行放大并输出来自输出端子的信号; 以及输出负载电路,其包括连接到输出端子的第一谐振电路和第二谐振电路。 第一谐振电路的谐振频率高于输入信号的二次谐波的频率,第二谐振电路的谐振频率低于输入信号的三次谐波的频率。 输出负载电路具有从输出端看的阻抗,输入信号的二次谐波的反射系数的相位大于180度且小于360度,并且在三次谐波处的反射系数的相位 的输入信号大于0度且小于180度。

    RADIO FREQUENCY POWER AMPLIFIER
    10.
    发明申请
    RADIO FREQUENCY POWER AMPLIFIER 有权
    无线电频率放大器

    公开(公告)号:US20130176079A1

    公开(公告)日:2013-07-11

    申请号:US13824425

    申请日:2012-05-22

    IPC分类号: H03F3/193

    摘要: A radio frequency power amplifier includes: an amplifying element which amplifies an input signal and outputs the signal from an output terminal; and an output load circuit which includes a first resonant circuit and a second resonant circuit that are connected to the output terminal. The first resonant circuit has a resonance frequency higher than the frequency of the second harmonic of the input signal, and the second resonant circuit has a resonance frequency lower than the frequency of the third harmonic of the input signal. The output load circuit has such an impedance looking from the output terminal that a phase of a reflection coefficient at the second harmonic of the input signal is greater than 180 degrees and less than 360 degrees, and a phase of a reflection coefficient at the third harmonic of the input signal is greater than 0 degrees and less than 180 degrees.

    摘要翻译: 射频功率放大器包括:放大元件,其对输入信号进行放大并输出来自输出端子的信号; 以及输出负载电路,其包括连接到输出端子的第一谐振电路和第二谐振电路。 第一谐振电路的谐振频率高于输入信号的二次谐波的频率,第二谐振电路的谐振频率低于输入信号的三次谐波的频率。 输出负载电路具有从输出端看的阻抗,输入信号的二次谐波的反射系数的相位大于180度且小于360度,并且在三次谐波处的反射系数的相位 的输入信号大于0度且小于180度。