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    APPARATUS AND METHOD FOR CHANGING CRYSTAL OSCILLATOR FREQUENCY
    141.
    发明申请
    APPARATUS AND METHOD FOR CHANGING CRYSTAL OSCILLATOR FREQUENCY 审中-公开
    改变晶体振荡器频率的装置和方法

    公开(公告)号：WO2001031774A1

    公开(公告)日：2001-05-03

    申请号：PCT/US2000/029437

    申请日：2000-10-26

    Applicant: ANALOG DEVICES, INC.

    Inventor： RANDERS, Esben ,  BRETT, Stephen, J.

    IPC: H03B5/32

    CPC classification number: H03B5/32 ,  H03B2201/0208 ,  H03B2201/025 ,  H03J7/04 ,  H03J7/08 ,  H03J2200/10

    Abstract: A programmable capacitor array is used to trim the frequency of a crystal oscillator for initial offset. An apparatus includes the crystal oscillator and an integrated circuit (36) is coupled to the crystal (30) of the oscillator. The programmable capacitor array (32) is formed on the integrated circuit and is coupled to the crystal (30) and is responsive to a signal for setting the capacitance of the capacitor array to one of a number of capacitance values. A discrete controllable capacitance device (V03) not one the integrated circuit is coupled to the crystal (30) and is responsive to a control signal (AFC) to change its capacitance. The crystal oscillator frequency is dependent on the capacitances of both the programmable capacitor array (32) and the discrete capacitor (V03).

    Abstract translation: 可编程电容阵列用于调整晶体振荡器的初始偏移频率。 一种装置包括晶体振荡器，并且集成电路（36）耦合到振荡器的晶体（30）。 可编程电容器阵列（32）形成在集成电路上并且耦合到晶体（30），并且响应于用于将电容器阵列的电容设置为多个电容值中的一个的信号。 分立可控电容器件（V03）不是集成电路中的一个耦合到晶体（30），并响应于控制信号（AFC）来改变其电容。 晶体振荡器频率取决于可编程电容阵列（32）和分立电容（V03）的电容。

    COMBINED LOW POWER CF CMOS MIXER AND VCO WITH CURRENT REUSE
    142.
    发明申请
    COMBINED LOW POWER CF CMOS MIXER AND VCO WITH CURRENT REUSE 审中-公开
    组合式低功耗CF CMOS MIXER和VCO，具有电流重新使用

    公开(公告)号：WO00027026A2

    公开(公告)日：2000-05-11

    申请号：PCT/EP1999/008339

    申请日：1999-11-02

    IPC: H03B1/00 ,  H03B5/12 ,  H03D7/00 ,  H03D7/12 ,  H03D7/14

    CPC classification number: H03D7/1441 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B2201/0208 ,  H03D7/1408 ,  H03D2200/0084

    Abstract: An MOS-technology oscillator device comprises a self-controlled oscillator stage provided with oscillator means, cross-coupled gate means, and output means. Furthermore it comprises a mixer device with a first stage and a second stage that have respective separate sets of signal inputs for connecting to the output means of said oscillator device, and which also has mixer signal output facilities. In particular, the oscillator stage output connects through current reuse paths of the first stage.

    Abstract translation: 一种MOS技术振荡器装置，包括一个设置有振荡器装置，交叉耦合栅极装置和输出装置的自控振荡器级。 此外，它包括具有第一级和第二级的混频器装置，其具有各自独立的信号输入组，用于连接到所述振荡器装置的输出装置，并且还具有混频器信号输出装置。 特别地，振荡器级输出通过第一级的当前重用路径连接。

    PASSIVE SWITCHED OSCILLATOR OUTPUT CIRCUIT
    143.
    发明申请
    PASSIVE SWITCHED OSCILLATOR OUTPUT CIRCUIT 审中-公开
    被动开关振荡器输出电路

    公开(公告)号：WO99057804A1

    公开(公告)日：1999-11-11

    申请号：PCT/US1999/009726

    申请日：1999-05-04

    IPC: H03B5/02 ,  H03B1/00 ,  H03B1/04 ,  H03B5/12 ,  H03B5/18

    CPC classification number: H03B5/1231 ,  H03B1/04 ,  H03B5/1203 ,  H03B5/1243 ,  H03B5/1262 ,  H03B2200/0008 ,  H03B2200/001 ,  H03B2200/0046 ,  H03B2200/0048 ,  H03B2201/0208 ,  H03B2201/0225

    Abstract: An oscillator having two oscillation circuits (01, 02) with widely different frequencies with a common passive switched output circuit (OP1). Each oscillator circuit (01, 02) includes a transmission line inductive impedance (L3, L13) between the oscillator output and ground. The inductive impedances (L3, L13) are selected to be open at the operating frequency of the associated oscillator circuit and a short or a low impedance at the frequency of the other oscillator circuit. Each inductive impedance (L3, L13) forms a portion of an impedance matching pad for the other oscillator circuit.

    Abstract translation: 具有两个具有广泛不同频率的振荡电路（01,02）的振荡器，具有公共无源开关输出电路（OP1）。 每个振荡器电路（01,02）包括振荡器输出和地之间的传输线电感阻抗（L3，L13）。 电感阻抗（L3，L13）选择为在相关振荡器电路的工作频率下开路，而在另一个振荡器电路的频率处选择短路或低阻抗。 每个电感阻抗（L3，L13）形成用于另一个振荡器电路的阻抗匹配焊盘的一部分。

    VARACTOR TUNED MICROSTRIP LINE RESONATOR AND VCO USING SAME
    144.
    发明申请
    VARACTOR TUNED MICROSTRIP LINE RESONATOR AND VCO USING SAME 审中-公开
    VARACTOR调谐微波线路谐振器和使用它的VCO

    公开(公告)号：WO98052277A1

    公开(公告)日：1998-11-19

    申请号：PCT/US1998/009875

    申请日：1998-05-12

    IPC: H03B1/00 ,  H03B5/18 ,  H03H5/12

    CPC classification number: H03H5/12 ,  H03B5/1847 ,  H03B2201/0208

    Abstract: A low noise, wide tuning bandwidth, voltage controlled oscillator employs a resonator circuit formed from at least two microstrip lines (42, 44) which are electromagnetically coupled to one another. Each of the microstrip lines (42, 44) has one end electrically coupled to circuit ground to provide a substantially inductive resonator circuit which is substantially immune to parasitic end effects and radiation losses. The frequency of the voltage controled oscillator is controlled by a variable capacitance varactor diode (43) coupled to at least one of the microstrip transmission lines (42). The resonator circuit (42, 43, 44) is well suited for use with a bipolar transistor (70) configured as a negative resistance oscillator.

    Abstract translation: 低噪声，宽调谐带宽，压控振荡器采用由至少两个彼此电磁耦合的微带线（42,44）形成的谐振电路。 微带线（42,44）中的每一个具有电耦合到电路接地的一端，以提供基本上感应的谐振器电路，其基本上不受寄生端效应和辐射损耗的影响。 电压控制振荡器的频率由耦合到至少一个微带传输线（42）的可变电容变容二极管（43）来控制。 谐振器电路（42,43,44）非常适用于配置为负电阻振荡器的双极晶体管（70）。

    OSCILLATOR WITH IMPROVED SIDEBAND NOISE
    145.
    发明申请
    OSCILLATOR WITH IMPROVED SIDEBAND NOISE 审中-公开
    具有改进的边带噪声的振荡器

    公开(公告)号：WO1996023351A1

    公开(公告)日：1996-08-01

    申请号：PCT/US1996000376

    申请日：1996-01-11

    Applicant: MOTOROLA INC.

    Inventor： MOTOROLA INC. ,  AVANIC, Branko ,  YEH, Peter, J. ,  OOI, Leng, Hock

    IPC: H03B05/18

    CPC classification number: H03B5/1847 ,  H03B2200/0024 ,  H03B2200/004 ,  H03B2200/0086 ,  H03B2200/0088 ,  H03B2201/0208 ,  H03B2202/025 ,  H03B2202/05

    Abstract: An oscillator (200) with improved sideband noise is disclosed. This improvement is accomplished without affecting the Q or the output power of the oscillator (200). The improvement is realized by increasing the rate of change of reactance over frequency. The increase in the rate of change is realized by placing two transmission lines (208, 210) in close proximity of each other. This increase assures oscillation while minimizing the sideband noise, and providing maximum bandwidth.

    Abstract translation: 公开了具有改进的边带噪声的振荡器（200）。 这种改进是在不影响振荡器（200）的Q或输出功率的情况下完成的。 通过提高频率上的电抗变化率来实现改进。 通过将两个传输线（208,210）彼此靠近放置来实现变化率的增加。 这种增加确保振荡，同时最小化边带噪声，并提供最大带宽。

    MICROWAVE DIODE OSCILLATOR
    146.
    发明申请
    MICROWAVE DIODE OSCILLATOR 审中-公开
    微波二极管振荡器

    公开(公告)号：WO1988001451A1

    公开(公告)日：1988-02-25

    申请号：PCT/US1987001657

    申请日：1987-07-15

    Applicant: HUGHES AIRCRAFT COMPANY

    Inventor： HUGHES AIRCRAFT COMPANY ,  LI, Hsiu, Y.

    IPC: H03B09/14

    CPC classification number: H03B9/145 ,  H03B7/08 ,  H03B2200/0074 ,  H03B2201/015 ,  H03B2201/0208

    Abstract: The four-diode bridge (14) is positioned within the cavity (10) of a Gunn diode (12) oscillator. A subharmonic signal is applied to the diode bridge and the diode bridge couples an odd harmonic of the injected signal into the cavity. The cavity is thus caused to resonate at the odd harmonic of the injected signal. The injected signal can be changed using a frequency synthesizer (26) in order to provide a microwave oscillator with multiple-channel operation. The diode bridge provides a feedback signal indicative of the phase of the cavity oscillation. The feedback signal is applied to a varactor (24) which pretunes the Gunn diode oscillator and thereby provides phase-locked control.

    Abstract translation: 四极二极管桥（14）位于耿氏二极管（12）振荡器的腔（10）内。 次谐波信号施加到二极管电桥，二极管电桥将注入信号的奇次谐波耦合到空腔中。 因此，腔体以注入信号的奇次谐波发生谐振。 可以使用频率合成器（26）来改变注入的信号，以便提供具有多通道操作的微波振荡器。 二极管桥提供表示腔振荡相位的反馈信号。 反馈信号被施加到可变电抗器（24），该变容二极管预先耿氏二极管振荡器，从而提供锁相控制。

    LOCAL OSCILLATION CIRCUIT
    147.
    发明申请
    LOCAL OSCILLATION CIRCUIT 审中-公开
    本地振荡电路

    公开(公告)号：WO1987000993A1

    公开(公告)日：1987-02-12

    申请号：PCT/JP1986000359

    申请日：1986-07-14

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  USUI, Akira ,  KUBO, Kazuhiko ,  NAGAI, Hiroyuki

    Inventor： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    IPC: H03B05/18

    CPC classification number: H03B5/1847 ,  H03B2200/0034 ,  H03B2200/004 ,  H03B2201/0208

    Abstract: A local oscillation circuit used as a TV tuner circuit, a CATV converter or an indoor unit of a satellite broadcast receiver, wherein the collector of an oscillation transistor (Q1) is grounded in an a-c manner, one end of a series resonance circuit consisting of a variable-capacity diode (D1) and a resonator (L1) is connected to the base of the transistor (Q1), the other end of the series resonance circuit is grounded in an a-c manner, the emitter of the oscillation transistor (Q1) is connected to the collector of an amplifier transistor (Q2) via means (L2, R3) which removes or reduces the a-c components and which permits d-c components to pass through, oscillation signals taken out of the emitter of the oscillation transistor (Q1) are supplied to the base of the amplifier transistor (Q2), and local oscillation signals are taken out of the collector of the amplifier transistor (Q2). Any change in the current of the oscillation transistor (Q1) is suppressed to improve the reliability of the circuit irrespective of the change in the d-c voltage applied to the cathode of the variable-capacity diode (D1).

    Abstract translation: 用作TV调谐器电路的本地振荡电路，卫星广播接收机的CATV转换器或室内单元，其中振荡晶体管（Q1）的集电极以交流方式接地，串联谐振电路的一端由 可变容量二极管（D1）和谐振器（L1）连接到晶体管（Q1）的基极，串联谐振电路的另一端以交流方式接地，振荡晶体管（Q1）的发射极 通过去除或减少交流分量并允许直流分量通过的装置（L2，R3）连接到放大器晶体管（Q2）的集电极，从振荡晶体管（Q1）的发射极中取出的振荡信号是 提供给放大器晶体管（Q2）的基极，并且将本地振荡信号从放大器晶体管（Q2）的集电极中取出。 不管施加到可变容量二极管（D1）的阴极的d-c电压的变化如何，抑制振荡晶体管（Q1）的电流的任何变化来提高电路的可靠性。

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