OSCILLATEUR HYPERFREQUENCES A TRES HAUTE STABILITE
    1.
    发明公开
    OSCILLATEUR HYPERFREQUENCES A TRES HAUTE STABILITE 审中-公开
    非常高的稳定HYPERFEQUENZ振荡器

    公开(公告)号:EP1579565A1

    公开(公告)日:2005-09-28

    申请号:EP03799573.5

    申请日:2003-12-15

    申请人: Thales

    IPC分类号: H03B5/18 H01P7/10

    CPC分类号: H01P7/10 H03B5/1864

    摘要: The invention relates to an oscillator, characterised in comprising a monobloc dielectric resonator in the form of a straight cylindrical section, hollowed in the mid-section thereof along the chords of the straight section thereof, such as to leave a central core and two lateral faces. The hollows have a symmetry of order N with N = 4, at least the planar faces of the cylinder are covered with a superconducting material, the resonator being placed in a cryogenic bath and connected to an amplifier by optimum means. The resonator connection is made by means of magnetic field and phase loop.

    Voltage-controlled oscillator, high-frequency module, and communication apparatus
    2.
    发明公开
    Voltage-controlled oscillator, high-frequency module, and communication apparatus 有权
    Spannungsgesteuerter Oszillator,Hochfrequenzmodul undKommunikationsgerät

    公开(公告)号:EP1369989A1

    公开(公告)日:2003-12-10

    申请号:EP03011441.7

    申请日:2003-05-20

    IPC分类号: H03B5/18 H03B5/36

    摘要: A voltage controlled oscillator includes a resonant circuit (2) which is connected with an active circuit (1). In the resonant circuit (2), a variable capacitance diode (4) is connected with a resonator (3) via a transmission line (5), and a capacitive circuit (6) is connected in parallel with the variable capacitance diode (4). By setting the length of the transmission line (5) to an appropriate value ranging from, for example, about one quarter to about one half of the wavelength of the resonant frequency, the frequency change width can increase, while maintaining the frequency linearity because of connection of the capacitive circuit (6).

    摘要翻译: 压控振荡器包括与有源电路(1)连接的谐振电路(2)。 在谐振电路(2)中,通过传输线(5)将可变电容二极管(4)与谐振器(3)连接,电容电路(6)与可变电容二极管(4)并联连接, 。 通过将传输线(5)的长度设定为范围从谐振频率的波长的约四分之一到约一半的适当值,频率变化宽度可以增加,同时保持频率线性由于 电容电路(6)的连接。

    Microwave oscillator and low-noise converter using the same
    4.
    发明公开
    Microwave oscillator and low-noise converter using the same 有权
    微波振荡器和低噪声转换器,具有这样的振荡器

    公开(公告)号:EP1154561A3

    公开(公告)日:2002-08-21

    申请号:EP01108601.4

    申请日:2001-04-05

    发明人: Kashima, Yukiro

    IPC分类号: H03B5/18 H03D7/00

    CPC分类号: H03B5/187 H03B5/1864

    摘要: A microwave oscillator for inducing parallel feedback from collector to base and obtaining a stabilized oscillation output is realized by connecting MSL A with released end to a base terminal of a transistor, connecting MSL B to its collector terminal, and disposing a DR closely to the MSL A and B to couple them electromagnetically. The length between the released end and the position of MSL A which is closest to the center of DR is set to λg1/4 (λg1 is the guide wavelength in the MSL A), and HIL is merely connected to this position as a bias supply line to the base terminal. This structure does not require the choke circuits which occupied a relatively wide area on the conventional circuit board, and a small and stable microwave oscillator having excellent phase noise characteristics, and a low-noise converter for receiving satellite signal by using the same are realized.

    Frequency agile switched resonator oscillator with noise degeneration
    6.
    发明公开
    Frequency agile switched resonator oscillator with noise degeneration 失效
    谐振器,振荡器,频率振荡器和振荡器。

    公开(公告)号:EP0546734A1

    公开(公告)日:1993-06-16

    申请号:EP92310871.6

    申请日:1992-11-27

    申请人: RAYTHEON COMPANY

    IPC分类号: H03B5/18

    摘要: 5 n7 An oscillator (10) includes an amplifier (12) having an input and an output and a feedback circuit (14) disposed between the input and the output of the amplifier (12). The feedback circuit (14) includes a plurality of resonators (34) and a pair of switches (32,38). Each switch (32,38) includes a first port and multiple connectable ports, the multiple connectable ports of each switch (32,38) connected to a corresponding one of the plurality of resonators (34). The feedback circuit (14) further includes a voltage-controlled phase shifter (22) disposed in series with the switches (32,38). The oscillator (10) further includes a discriminator circuit (16), responsive to signals from the feedback circuit (14), for providing a control signal (52) to the voltage-controlled phase shifter (22) for degenerating low frequency noise within the oscillator (10). With such an arrangement, high Q low noise resonators can be switched in and out of the circuit thus providing improved phase noise performance at high power levels with the desirable frequency agility required for a microwave oscillator.

    摘要翻译: 振荡器(10)包括具有输入和输出的放大器(12)和设置在放大器(12)的输入和输出之间的反馈电路(14)。 反馈电路(14)包括多个谐振器(34)和一对开关(32,38)。 每个开关(32,38)包括第一端口和多个可连接端口,每个开关(32,38)的多个可连接端口连接到多个谐振器(34)中的相应一个谐振器。 反馈电路(14)还包括与开关(32,38)串联布置的电压控制移相器(22)。 振荡器(10)还包括鉴别器电路(16),响应于来自反馈电路(14)的信号,用于向压控移相器(22)提供控制信号(52),用于将低频噪声 振荡器(10)。 通过这样的布置,可以将高Q低噪声谐振器切换到电路中,从而在具有微波振荡器所需要的频率灵活性的高功率电平下提供改进的相位噪声性能。

    Streifenleitungsdopplerradar
    7.
    发明公开
    Streifenleitungsdopplerradar 失效
    带状线多普勒雷达。

    公开(公告)号:EP0129251A1

    公开(公告)日:1984-12-27

    申请号:EP84107056.8

    申请日:1984-06-19

    IPC分类号: G01S7/02 H03B5/18

    摘要: Es wird ein Streifenle'ttungsdopplerrader (1) bestehend aus einem Hochfrequenzoszillator (3), Streifenleitern (5, 6), einem dielektrischen Resonator (2), einer Empfangsdiode (7), einer Antenne (4) und Bandsperren oder Tiefpaßfiltern (9,10) beschrieben. Die im Oszillator (3) erzeugte HF-Leistung gelangt über die Streifenleiter (5, 6) und den dielektrischen Resonator (2) sowohl zu der Empfangsdiode (7) als auch zu der Hochfrequenzabstrahlenden Antenne (4). Reflektierte Hochfrequenzsignale werden von der Antenne (4) ebenfalls empfangen und über den einen Streifenleiter (6) der Empfangsdiode (7) zugeführt, wo die reflektierte Leistung mit der direkt vom Oszillator (3) eingespeisten leistung überlagert wird. Das so erhaltene Dopplersignal wird über ein Tiefpaßfilter oder eine Bandsperre (9) nach außen in einen verstärker geleitet.
    Beschriebene Streifenleittungsdopplerradars (1) lassen sich als Bewegungsmelder, geschwindigkeitsmesser, Türöffner und Näherungsschalter verwenden.

    摘要翻译: 它是一种带状线(1),包括一个高频振荡器(3)的多普勒雷德,带状导体(5,6),一介质谐振器(2),接收二极管(7),天线(4)和带阻滤波器或低通滤波器(9,10)中描述 , 在振荡器(3)产生的RF功率通过带状导体通过(5,6)和介质谐振器(2)同时向接收二极管(7)和所述Hochfrequenzabstrahlenden天线(4)。 反射的射频信号也由天线(4)接收,并经由一带状导体供给的接收二极管(7),其中,所述反射功率被叠加在来自振荡器(3)所供给的功率的直接的(6)。 将由此得到的多普勒信号通过一个低通滤波器或带阻滤波器(9)到外部的放大器通过。 描述带状线多普勒雷达(1)可被用作运动检测器,速度计,使用门开启器和接近开关。

    Oscillator, transmitter/receiver module and radar system
    8.
    发明公开
    Oscillator, transmitter/receiver module and radar system 审中-公开
    振荡器发送接收单元及雷达系统

    公开(公告)号:EP1292013A3

    公开(公告)日:2003-09-17

    申请号:EP02002996.3

    申请日:2002-02-11

    申请人: Hitachi, Ltd.

    IPC分类号: H03B5/18

    CPC分类号: H03B5/1864

    摘要: The oscillator includes an active device, a substrate, a microstrip line formed on the substrate, and a dielectric block. The resonator is made up with the microstrip line and the dielectric block that is disposed so as to couple with the microstrip line. The active device produces a negative resistance in a desired oscillation frequency band. The dielectric block is set such that a resonance frequency of the lowest order mode of the dielectric block is lower than a desired oscillation frequency, and the resonance frequency of one of the higher order modes coincides with the desired oscillation frequency. The oscillator is generated with the higher order mode of the resonator. Thus, the invention provides at a low cost a millimeter wave band oscillator of a low phase noise by using this oscillator, and a transmitter-receiver module and a radar system applying this oscillator to the local signal generator.