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12 条记录 (耗时 0.012 秒)

    Microwave oscillator
    3.
    发明公开
    Microwave oscillator 失效
    Mikrowellen-Oszillator。

    公开(公告)号：EP0309270A2

    公开(公告)日：1989-03-29

    申请号：EP88308854.4

    申请日：1988-09-23

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Mekata, Tsuyoshi ,  Saka, Kiroshi ,  Tanaka, Toshihide

    IPC分类号： H03B5/18

    CPC分类号： H03B5/1876 ,  H03B5/1852 ,  H03B7/14 ,  H03B2200/0028 ,  H03B2200/0094

    摘要： The oscillator uses a three-terminal active element (1), such as a FET with both series feedback (25) and parallel feedback (29). The series feedback comprises an inductive (26) and a capacitive (27) element. The parallel feedback comprises a further capacitive element (28). The starting of the oscillator is thereby improved, while output power is increased and the influence of impedance fluctuations of a load (30) is reduced.

    摘要翻译： 振荡器使用三端有源元件（1），例如具有串联反馈（25）和并联反馈（29）的FET。 串联反馈包括电感（26）和电容（27）元件。 并联反馈包括另外的电容元件（28）。 从而提高了振荡器的启动，同时提高了输出功率并降低了负载（30）的阻抗波动的影响。

    Microwave oscillator
    4.
    发明公开
    Microwave oscillator 失效
    Hyperfrequenzoszillator。

    公开(公告)号：EP0202652A2

    公开(公告)日：1986-11-26

    申请号：EP86106840.1

    申请日：1986-05-20

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Mekata, Tsuyoshi ,  Saka, Hiroshi ,  Tanaka, Toshihide

    IPC分类号： H03B5/18

    CPC分类号： H03B5/1876 ,  H03B5/1852 ,  H03B2200/0028

    摘要： A microwave oscillator to be usable with anyone of chip FET or MMIC FET or package FET, by configurating the oscillation circuit that resonance circuit (4+5,26) is connected to the gate (11), an end-grounded inductor (2) is connected to the drain (12) and the source (13) is connected to output terminal (10), stable microwave oscillation is made.

    摘要翻译： 通过将谐振电路（4 + 5,26）连接到栅极（11）的振荡电路，端接地电感器（2）构成的微波振荡器可用于芯片FET或MMIC FET或封装FET中的任何一个， 连接到漏极（12），源极（13）连接到输出端子（10），进行稳定的微波振荡。

    A synchronous video detector circuit using phase-locked loop
    7.
    发明公开
    A synchronous video detector circuit using phase-locked loop 失效
    使用锁相环同步视频检波器电路。

    公开(公告)号：EP0080280A1

    公开(公告)日：1983-06-01

    申请号：EP82305831.8

    申请日：1982-11-02

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Isobe, Mitsuo ,  Kutsuki, Tetsuo ,  Yamaguchi, Namio ,  Tanaka, Toshihide

    IPC分类号： H04N5/44 ,  H04N5/21 ,  H03B5/12

    CPC分类号： H04N5/455 ,  H03B5/1209 ,  H03B5/1231 ,  H04N5/21

    摘要： in a synchronous video detector circuit using a phase-locked loop (PLL; 13,14,15,16), the synchronous detection of a video IF signal is effected with a synchronous carrier signal reproduced by the PLL including a voltage-controlled oscillator (15). Each of a phase comparator (13) of the PLL and a synchronous video detector (18) has its input terminal connected to an output terminal of a video IF amplifier (11) by untuned coupling (17, 17'), and arranged on the output side of the synchronous video detector (18) is a phase-locked mode detector (19) for detecting that the PLL is in its phase-locked mode. The phase-locked mode detector (19) is adapted to control the band width of a low-pass filter (14) of the PLL in either a narrow band mode or a wide band mode and the low-pass filter (14) is controlled to operate in the narrow band mode only when the PLL is in the phase-locked mode of operation. The black and white noise included in the output signal of the synchronous video detector (18) are both cancelled by a noise cancellation circuit (20) including a black noise detector (21) for pulse noise calcellation purposes.

    Microwave integrated circuit mixer
    8.
    发明公开
    Microwave integrated circuit mixer 失效
    混合器在微波集成电路技术。

    公开(公告)号：EP0068870A2

    公开(公告)日：1983-01-05

    申请号：EP82303372.5

    申请日：1982-06-28

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Saka, Hiroshi ,  Tanaka, Toshihide

    IPC分类号： H03D9/06

    CPC分类号： H03D9/0633 ,  H03D2200/0037

    摘要： In a mixer using a planar circuit such as a strip line or a microstrip line etc., an IF signal interruption circuit (9, 27) which passes an RF signal but exhibits an open-circuit impedance against an IF signal is provided in shunt with a main line (2,21) on which the RF signal propagates toward a mixer diode (3, 22), and a low-pass filter (10, 11, 28) is connected in the vicinity of the IF signal interruption circuit in order to short-circuit a mount point of the diode for the IF signal by high frequency short-circuiting technique wherein an open-ended quarter wavelength transmission line or a short-circuited half-wavelength transmission line is used, whereby low noise performance can be obtained over a wide frequency band even under such an operating condition that the IF signal is in the GHz band.