Transmitter of wireless system and high frequency power amplifier used
therein
    2.
    发明授权
    Transmitter of wireless system and high frequency power amplifier used therein 失效
    其中使用的无线系统和高频功率放大器的发射机

    公开(公告)号:US5901345A

    公开(公告)日:1999-05-04

    申请号:US056446

    申请日:1998-04-06

    CPC分类号: H03F3/211 H03F3/604

    摘要: 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.

    摘要翻译: 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。

    Linear amplifier
    3.
    发明授权
    Linear amplifier 失效
    线性放大器

    公开(公告)号:US5371477A

    公开(公告)日:1994-12-06

    申请号:US924937

    申请日:1992-08-05

    IPC分类号: H03F3/193 H03G3/30 H03G3/10

    CPC分类号: H03G3/3047 H03F3/1935

    摘要: A linear amplifier has an input signal controller for controlling the level of an input signal to a field-effect transistor (FET) using a DC gate current measured by a gate current detector arranged between a gate bias terminal and a drain bias terminal of the FET and a nonlinear resistor whose resistance can be varied corresponding to an inter-terminal voltage between the gate and the drain of the FET, in which the voltage at the gate of the FET is adjusted to a rate such that a particular drain current which has been determined just before the starting of burst signal transmission corresponding to the level of a power output of the linear amplifier is obtained, and is maintained for a given period of time.

    摘要翻译: 线性放大器具有输入信号控制器,用于使用布置在FET的栅极偏置端子和漏极偏置端子之间的栅极电流检测器测量的DC栅极电流来控制到场效应晶体管(FET)的输入信号的电平 以及一个非线性电阻,其电阻可以相应于FET的栅极和漏极之间的端子间电压而变化,其中FET的栅极处的电压被调节到使得具有特定的漏极电流的速率 在与线性放大器的功率输出的电平相对应的脉冲串信号传输开始之前确定,并且保持给定的时间段。

    Dielectric filter having inter-resonator coupling including both
magnetic and electric coupling
    4.
    发明授权
    Dielectric filter having inter-resonator coupling including both magnetic and electric coupling 失效
    具有谐振器耦合的介质滤波器包括磁耦合和电耦合

    公开(公告)号:US5396201A

    公开(公告)日:1995-03-07

    申请号:US135168

    申请日:1993-10-12

    CPC分类号: H01P1/20345

    摘要: A small and thin plane type narrow-band dielectric filter to be used for a portable telephone and the like, includes a plurality of end short-circuited strip line resonators having a length of about quarter-wavelength formed parallel and closely to each other on a first dielectric substrate and directly magnetically coupled to each other. The thus formed strip line resonators are partially bonded to parallel plane capacitor electrodes formed on a second dielectric substrate in respective overlapping areas thereby electrically coupling the strip line resonators through the parallel plane capacitors, so that the inter-resonator coupling can be reduced due to the fact that it is achieved in combination with the magnetic coupling and the electrical coupling.

    摘要翻译: 一种用于便携式电话等的小型和薄型平面型窄带介质滤波器包括多个端部短路带状线谐振器,其长度约为四分之一波长,形成为彼此平行且紧密地形成在 第一电介质基板并且彼此直接磁耦合。 这样形成的带状线谐振器部分地接合在各重叠区域上形成在第二电介质基板上的平行平面电容器电极,从而通过并联平面电容器使带状线谐振器电耦合,从而可以减小谐振器间耦合 这是与磁耦合和电耦合相结合的事实。

    Radio frequency power amplifier
    5.
    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。

    Outboard motor control apparatus
    6.
    发明授权
    Outboard motor control apparatus 有权
    舷外马达控制装置

    公开(公告)号:US08366500B2

    公开(公告)日:2013-02-05

    申请号:US12580650

    申请日:2009-10-16

    IPC分类号: B63H21/22

    摘要: In an apparatus for controlling an outboard motor having an internal combustion engine to power a propeller, and a torque converter interposed between the engine and a drive shaft and equipped with a lockup clutch, it is configured to have a throttle opening detector that detects throttle opening of a throttle valve of the engine, a throttle opening change amount calculator that calculates a change amount of the calculated throttle opening, and a clutch ON unit that makes the lockup clutch ON when the calculated change amount is equal to or greater than a predetermined value, and keeps the lockup clutch ON during a predetermined time period. With this, it becomes possible to improve acceleration performance immediately after the engine speed is accelerated.

    摘要翻译: 在用于控制具有用于为螺旋桨供能的内燃机的舷外马达的驱动装置以及插入在发动机和驱动轴之间并配备有锁止离合器的变矩器的情况下,构成为具有检测节气门开度的节气门开度检测器 发动机的节气门的节气门开度变化量计算器,计算出的节气门开度的变化量的节气门开度变化量计算器和当所计算出的变化量为规定值以上时使锁止离合器接通的离合器接通单元 并且在预定时间段内保持锁止离合器接通。 由此,可以在发动机转速加速后立即提高加速性能。

    Outboard motor control apparatus
    7.
    发明授权
    Outboard motor control apparatus 有权
    舷外马达控制装置

    公开(公告)号:US08202135B2

    公开(公告)日:2012-06-19

    申请号:US12580790

    申请日:2009-10-16

    IPC分类号: B63H21/22

    摘要: In an apparatus for controlling an outboard motor mounted on a stern of a boat and having an internal combustion engine to power a propeller, a drive shaft that connects the engine and the propeller, and a torque converter that is interposed between the engine and the drive shaft and is equipped with a lockup clutch, it is configured to have a planing determiner that determines whether the boat is planning and a clutch ON unit that makes the lockup clutch ON when the boat is determined to be planing. With this, it becomes possible to appropriately make the lockup clutch ON after completing acceleration, thereby improving speed performance.

    摘要翻译: 在用于控制安装在船尾的舷外马达的装置中,具有内燃机来驱动螺旋桨,连接发动机和螺旋桨的驱动轴和介于发动机和驱动器之间的变矩器 轴配有锁止离合器,它被配置为具有确定船是否正在规划的刨切确定器,以及当船确定为刨床时使离合器接通单元使得锁止离合器接通。 由此,能够在完成加速后适当地使锁止离合器接通,从而提高速度性能。

    Mixer having frequency selection function
    8.
    发明申请
    Mixer having frequency selection function 有权
    混频器具有频率选择功能

    公开(公告)号:US20070275684A1

    公开(公告)日:2007-11-29

    申请号:US11802192

    申请日:2007-05-21

    IPC分类号: H04B1/18

    CPC分类号: H03D7/14

    摘要: A mixer which has an enhanced frequency selection characteristic and generates no pass loss is realized without using an operation control signal having a frequency higher than a sampling frequency. Provided are a time control section 102 for supplying control signals, a first switched capacitor circuit 100 for outputting a discrete time sample stream of the input signal 107 in accordance with integration operation control signals Lo1 and Lo2, and a second switched capacitor circuit 104 functioning as a high-order IIR filter by sharing a charge, and a frequency of each of the integration operation control signals Lo1 and Lo2 is higher than frequencies of other control signals.

    摘要翻译: 在不使用具有高于采样频率的频率的操作控制信号的情况下,实现具有增强的频率选择特性并且不产生通过损耗的混频器。 提供了用于提供控制信号的时间控制部分102,用于根据积分运算控制信号Lo 1和Lo 2输出输入信号107的离散时间采样流的第一开关电容器电路100和第二开关电容器电路104 通过共享电荷作为高阶IIR滤波器,并且积分运算控制信号Lo 1和Lo 2的频率高于其它控制信号的频率。

    Outboard motor control apparatus
    10.
    发明授权
    Outboard motor control apparatus 有权
    舷外马达控制装置

    公开(公告)号:US08303466B2

    公开(公告)日:2012-11-06

    申请号:US12580595

    申请日:2009-10-16

    IPC分类号: F16H61/58

    摘要: In an apparatus for controlling an outboard motor having an internal combustion engine to power a propeller and a torque converter interposed between the engine and a drive shaft and equipped with a lockup clutch, it is configured to, based on input rotation speed and output rotation speed of the torque converter, calculate a speed ratio of the torque converter and a change amount of the input rotation speed, and make the lockup clutch ON/OFF based on the calculated speed ratio and change amount. With this, it becomes possible to appropriately make the lockup clutch ON/OFF, thereby improving speed performance.

    摘要翻译: 在一种用于控制舷外马达的装置中,所述舷外马达具有内燃机以驱动螺旋桨和置于发动机和驱动轴之间并具有锁止离合器的变矩器,其基于输入转速和输出转速 计算变矩器的转速比和输入转速的变化量,并根据计算出的变速比和变化量使锁止离合器接通/断开。 由此,可以适当地使锁止离合器接通/断开,从而提高速度性能。