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76 条记录 (耗时 0.018 秒)

    Voltage-controlled oscillator for frequency modulation
    1.
    发明授权
    Voltage-controlled oscillator for frequency modulation 有权

    公开(公告)号：US06621364B2

    公开(公告)日：2003-09-16

    申请号：US10040213

    申请日：2002-01-03

    申请人： Christian Grewing ,  Klaus Getta ,  Udo Matter ,  Faramarz Rassouli

    发明人： Christian Grewing ,  Klaus Getta ,  Udo Matter ,  Faramarz Rassouli

    IPC分类号： H03B100

    CPC分类号： H03C3/22

    摘要： A voltage-controlled oscillator for frequency modulation includes an oscillator core with a tunable resonant circuit component which is driven with a control voltage. Furthermore, a modulator component is provided which is driven with a modulation signal for frequency modulation. The modulator component is additionally coupled to the terminal for supplying the control voltage. As a result, a constant modulation deviation can be achieved over the entire tuning range even in the case of oscillators having a large tuning range. The oscillator circuit is particularly suitable for use in transmitting circuits for digital communication.

    Microwave sweep frequency oscillator
    3.
    发明授权
    Microwave sweep frequency oscillator 失效
    微波扫频振荡器

    公开(公告)号：US4695809A

    公开(公告)日：1987-09-22

    申请号：US867349

    申请日：1986-05-23

    申请人： Marie-Irene Rudelle

    发明人： Marie-Irene Rudelle

    IPC分类号： H03B1/00 ,  H03B5/18 ,  H03C3/22 ,  H03B23/00

    CPC分类号： H03B5/1852 ,  H03B2201/0208 ,  H03C2200/0079 ,  H03C3/22

    摘要： A microwave frequency oscillator capable of being linearly swept over a wide frequency range around a central frequency comprising a field-effect transistor with a high gain, the output of which is fed back to the input from a coupler consisting of two relatively narrow striplines located close together. A wobbulator circuit is fitted in shunt to the feedback network comprises two voltage variable capacitors in series between three line components designed to optimize the frequency modulation linearity in relation to the voltage variable capacitance diode control voltage. The oscillator is useful in equipment requiring extreme linearity such as radio-altimeter sources.

    摘要翻译： 一种微波频率振荡器，其能够在包括具有高增益的场效应晶体管的中心频率周围的宽频率范围内线性扫描，该输出由耦合器反馈到由两个相对窄的带状线组成的输入端 一起。 串联在反馈网络中的摆动电路包括三个线路组件之间串联的两个电压可变电容器，用于优化与电压可变电容二极管控制电压相关的调制线性度。 振荡器在需要极端线性度的设备中非常有用，例如无线电高度计源。

    Oscillator
    4.
    发明授权
    Oscillator 失效
    振荡器

    公开(公告)号：US4639691A

    公开(公告)日：1987-01-27

    申请号：US784339

    申请日：1985-10-04

    申请人： Kouta Iigima

    发明人： Kouta Iigima

    IPC分类号： H01P7/08 ,  H03B1/00 ,  H03B5/12 ,  H03B5/18 ,  H03C3/22 ,  H03B7/12

    CPC分类号： H03B5/1847 ,  H03B5/1841 ,  H03B2200/004 ,  H03B2200/0048 ,  H03B2200/0056 ,  H03B2201/0208 ,  H03C3/22

    摘要： Herein disclosed is an oscillator having a micro-strip line for acting as a resonance line. A frequency controlling variable capacitor is connected with one terminal of the micro-strip line and arranged such that it can be controlled by a voltage applied. An auxiliary micro-strip line has its one terminal connected at least in a high-frequency manner with the one terminal of the micro-strip line and its other terminal made connectable with the micro-strip line. A switch is provided for connecting the other terminal of said auxiliary strip line with said micro-strip line so that it may be turned on or off to switch the oscillation frequency in dependence upon whether or not the auxiliary resonance line is connected in parallel with the micro-strip line.

    摘要翻译： 这里公开的是具有用作谐振线的微带线的振荡器。 频率控制可变电容器与微带线的一个端子连接，并且布置成可以通过施加的电压来控制。 辅助微带线具有至少以高频方式与微带线的一个端子连接的一个端子，并且其另一个端子可与微带线连接。 提供了一种开关，用于将所述辅助带状线的另一个端子与所述微带线连接，使得其可以被接通或断开以根据辅助谐振线路是否与所述辅助谐振线路并联连接来切换振荡频率 微带线。

    Varactor controlled push-pull oscillator
    6.
    发明授权
    Varactor controlled push-pull oscillator 失效
    变容二极管控制推挽振荡器

    公开(公告)号：US4360790A

    公开(公告)日：1982-11-23

    申请号：US132114

    申请日：1980-03-20

    申请人： Rudolf Heise

    发明人： Rudolf Heise

    IPC分类号： H03C3/26 ,  H03B1/00 ,  H03B5/12 ,  H03C3/22

    CPC分类号： H03C3/222 ,  H03B5/1218 ,  H03B5/1231 ,  H03B5/1256 ,  H03B2200/004 ,  H03B2200/0092 ,  H03B2200/0098 ,  H03B2201/0208 ,  H03C3/22

    摘要： An oscillator arrangement is disclosed which is controllable in its frequency and which comprises a control input for frequency variation and a transformer output, whose frequency-determining oscillating circuit possesses, as a controllable reactive element, two varactor diodes which are connected in opposing fashion and whose capacitance largely represents the oscillating circuit capacitance. Two feedback oscillator circuits are combined to form a push-pull circuit in that the output terminals of the oscillator circuits are connected in respect of d.c. to a reference potential by way of a central tap of the primary winding of a common output transformer. In addition, the two varactor diodes are oppositely poled and interconnected in respect of d.c. by way of the opposite terminals of an oscillating circuit inductance and, at their opposite terminals, are each connected to respective bases of transistors of two oscillator circuits, the emitters of the transistors being connected together and by way of respective resistors to a power supply and the collectors being connected together by way of opposite terminals of the primary winding of the output transformer. In order to form the control input, the oscillating circuit inductance is provided with a central tap.

    摘要翻译： 公开了其频率可控的振荡器装置，其包括用于频率变化的控制输入和变频器输出，其频率确定振荡电路具有作为可控无功元件的两个以相反的方式连接的变容二极管， 电容很大程度上代表了振荡电路电容。 两个反馈振荡器电路组合形成推挽电路，因为振荡器电路的输出端相对于直流电连接。 通过公共输出变压器的初级绕组的中心抽头来达到参考电位。 另外，两个变容二极管相对于d.c.相反极化和互连。 通过振荡电路电感的相对端子，并且在其相对端子分别连接到两个振荡器电路的晶体管的相应基极，晶体管的发射极通过相应的电阻器连接在一起并供给电源， 集电极通过输出变压器初级绕组的相对端连接在一起。 为了形成控制输入，振荡电路电感具有中央抽头。