High frequency sweep generator
    21.
    发明授权
    High frequency sweep generator 失效
    高频扫描发生器

    公开(公告)号:US3706940A

    公开(公告)日:1972-12-19

    申请号:US3706940D

    申请日:1971-01-04

    Inventor: HAUSNER JERRY

    CPC classification number: H03B23/00 H03B19/00 H03B2200/0092 H03B2201/0241

    Abstract: A broad band high frequency sweep generator operating in the gigahertz range. A basic oscillator sweeps a band at the lower region of this range and a frequency amplifier is used to select harmonics for the upper frequencies of the band. Unique amplification and control circuitry is employed to obtain consistent power output and high resolution frequency coverage.

    Abstract translation: 工作在千兆赫兹范围内的宽带高频扫描发生器。 基本振荡器在该范围的下部区域扫描频带,并且使用频率放大器来选择频带的较高频率的谐波。 采用独特的放大和控制电路来获得一致的功率输出和高分辨率的频率覆盖。

    Multiple magnetically tuned oscillator
    24.
    发明授权
    Multiple magnetically tuned oscillator 失效
    多个磁调谐振荡器

    公开(公告)号:US5200713A

    公开(公告)日:1993-04-06

    申请号:US884830

    申请日:1992-05-18

    Abstract: YIG oscillator apparatus comprises both an FET-based YIG oscillator circuit and a bipolar transistor-based YIG oscillator circuit inside a single magnetic structure. Both YIG spheres are disposed in the single air gap of the magnetic structure, which is defined by a pole piece which is tapered to an elongated pole surface which is only slightly larger than necessary to cover both YIG spheres. A band reject filter is included inside the housing for rejecting second harmonics of desired oscillation frequencies only.

    Abstract translation: YIG振荡器装置包括基于FET的YIG振荡器电路和单个磁性结构内的基于双极晶体管的YIG振荡器电路。 两个YIG球体均设置在磁性结构的单个气隙中,磁极结构的一个气隙由一个极片限定,该极片与细长的磁极表面成锥形,只有稍大于覆盖两个YIG球体所需的极细的磁极表面。 带外滤波器包含在壳体内,用于仅抑制期望振荡频率的二次谐波。

    Multiple YIG oscillator
    25.
    发明授权
    Multiple YIG oscillator 失效
    多个YIG振荡器

    公开(公告)号:US5115209A

    公开(公告)日:1992-05-19

    申请号:US725388

    申请日:1991-06-28

    Abstract: YIG oscillator apparatus comprises both an FET-based YIG oscillator circuit and a bipolar transistor-based YIG oscillator circuit inside a single magnetic structure. Both YIG spheres are disposed in the single air gap of the magnetic structure, which is defined by a pole piece which is tapered to an elongated pole surface which is only slightly larger than necessary to cover both YIG spheres.

    Abstract translation: YIG振荡器装置包括基于FET的YIG振荡器电路和单个磁性结构内的基于双极晶体管的YIG振荡器电路。 两个YIG球体均设置在磁性结构的单个气隙中,磁极结构的一个气隙由一个极片限定,该极片与细长的磁极表面成锥形,只有稍大于覆盖两个YIG球体所需的极细的磁极表面。

    Swept frequency slope correction system for synthesized sweeper
    27.
    发明授权
    Swept frequency slope correction system for synthesized sweeper 失效
    扫频频率斜率校正系统

    公开(公告)号:US5028886A

    公开(公告)日:1991-07-02

    申请号:US414567

    申请日:1989-09-29

    Abstract: A swept synthesizer signal source provides a digital synchronization signal for accurate internal synchronization of events and for external synchronization of data taking and other operations to predetermined frequencies generated by an oscillator during a sweep. The digital synchronization signal includes a predetermined number of digital pulses, regardless of the sweep time. A ramp voltage which controls the oscillator is corrected during a calibration period to sweep between predetermined limits, thereby insuring that the ramp voltage is synchronized to the digital synchronization signal. The slope of the frequency versus time sweep is also corrected to further improve accuracy. A power level correction technique insures precision power leveling regardless of the sweep range. A table of correction/frequency pairs is entered into the instrument, and an interpolation algorithm is employed to determine corrections at frequencies corresponding to each synchronization pulse. The source can be used in a network analyzer system wherein the synchronization pulses are provided to a receiver to trigger data taking. Two or more sources can be interconnected to provide synchronized sweeps.

    Abstract translation: 扫频合成器信号源提供数字同步信号,用于精确的事件内部同步以及数据采集和其他操作的外部同步到扫描期间由振荡器产生的预定频率。 无论扫描时间如何,数字同步信号包括预定数量的数字脉冲。 在校准周期期间校正控制振荡器的斜坡电压以在预定极限之间扫描,从而确保斜坡电压与数字同步信号同步。 频率对时间扫描的斜率也被校正以进一步提高精度。 功率电平校正技术无论扫描范围如何都能保证精确的功率均衡。 校正/频率对的表被输入到仪器中,并且使用内插算法来确定在与每个同步脉冲对应的频率处的校正。 源可以用在网络分析仪系统中,其中同步脉冲被提供给接收器以触发数据采集。 两个或更多个源可以互连以提供同步扫描。

    YIG thin film tuned MIC oscillator
    29.
    发明授权
    YIG thin film tuned MIC oscillator 失效
    YIG薄膜调谐麦克风振荡器

    公开(公告)号:US4626800A

    公开(公告)日:1986-12-02

    申请号:US740813

    申请日:1985-06-03

    CPC classification number: H03B5/1888 H01P1/215 H03B2201/0241 H03B5/1847

    Abstract: A tuned oscillator is disclosed which comprises an active element, a resonator electrically connected to the active element and made of a magnetic material using ferro-magnetic resonance phenomenon, and a magnetic circuit for applying a magnetic field to the resonator. The resonator is made of an YIG (yttrium, iron and garnet) thin film magnetic resonance element formed by a thin film forming technique and utilizes an uniform mode ferro-magnetic resonance in the YIG thin film, and operating under the application of magnetic field of the magnetic circuit.

    Abstract translation: 公开了一种调谐振荡器,其包括有源元件,电连接到有源元件并由使用铁磁共振现象的磁性材料制成的谐振器和用于向谐振器施加磁场的磁路的谐振器。 谐振器由YIG(钇,铁和石榴石)薄膜磁共振元件制成,通过薄膜形成技术形成,并在YIG薄膜中利用均匀模式的铁磁共振,并在施加磁场的作用下 磁路。

    Frequency source having YIG absorption/transmission filter
    30.
    发明授权
    Frequency source having YIG absorption/transmission filter 失效
    具有YIG吸收/透射滤光片的频率源

    公开(公告)号:US4554516A

    公开(公告)日:1985-11-19

    申请号:US676043

    申请日:1984-11-29

    Abstract: An electronically tunable solid-state microwave frequency source comprises a transmission-absorption filter incorporated within a magnetic structure. The transmission-absorption filter is employed with a tunable solid-state oscillator and tunable solid-state multiplier to provide a continuously tunable microwave signal source with enhanced spurious signal attenuation over a multiple-octave tuning range. The filter structure comprises a sphere of monocrystalline garnet such as yttrium iron garnet (YIG) and two coupling loops disposed in the field region of an adjustable field DC magnet. The coupling loops are disposed orthogonal to the magnetic field and to each other. In a specific embodiment the first coupling loop is operative to receive at its input the fundamental frequency signal and at its output is grounded, and the second coupling loop is operative to receive a harmonic input signal at its input and to convey a desired output signal at its output. The magnetic sphere of the transmission-absorption filter typically shares the magnetic field of the YIG sphere used to produce the output of the tuned oscillator. The transmission-absorption filter is incorporated into a source including a switch, a fundamental frequency amplifier and a harmonic frequency amplifier.

    Abstract translation: 电子可调谐固体微波频率源包括结合在磁性结构内的透射吸收滤光片。 传输吸收滤波器与可调谐固态振荡器和可调谐固态倍增器一起使用,以在多倍频程调谐范围内提供具有增强的寄生信号衰减的连续可调微波信号源。 过滤器结构包括单晶石榴石球,例如钇铁石榴石(YIG)和设置在可调直径磁体的场区域中的两个耦合回路。 耦合回路与磁场和彼此正交设置。 在具体实施例中,第一耦合回路可操作以在其输入处接收基频信号,并且在其输出端接地,并且第二耦合回路可操作以在其输入处接收谐波输入信号,并在 其输出。 透射吸收滤光器的磁球通常共享用于产生调谐振荡器的输出的YIG球的磁场。 传输吸收滤波器被并入包括开关,基频放大器和谐波放大器的源。

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