Delay line with coupled cavities
    1.
    发明授权
    Delay line with coupled cavities 失效
    延迟线与耦合腔

    公开(公告)号:US4286191A

    公开(公告)日:1981-08-25

    申请号:US44340

    申请日:1979-05-30

    CPC classification number: H01J23/24

    Abstract: The areas of the walls 1 separating two adjacent cavities that are located on the periphery of the opening 3 for allowing through the electron beam, and whose thermal resistance is greatest, are those comprised between this opening 3 and a cavity coupling opening 2. Owing to the opening 3 for allowing through the electron beam (elliptical, centered on the axis of the line 00', with the large axis of the ellipse merging with the axis of symmetry AA' of the coupling openings 2 intersecting the axis 00'), these areas are the furthest away from the axis of the line 00' along which the electron beam is propagated. The invention is applied to microwave tubes and in particular to travelling-wave tubes.

    Abstract translation: 分离位于开口3的周边上的两个相邻空腔的壁1的区域,用于允许穿过电子束,并且其热阻最大的是位于该开口3和空腔耦合开口2之间的那些。由于 用于允许穿过电子束的开口3(椭圆形,以线00'的轴线为中心,椭圆的大轴与耦合开口2的与轴线00'相交的对称轴线AA'合并),这些 区域距离电子束传播的线00'的轴线最远。 本发明适用于微波管,尤其适用于行波管。

    Structure of electron source and application thereof to electromagnetic
wave emitting tubes
    2.
    发明授权
    Structure of electron source and application thereof to electromagnetic wave emitting tubes 失效
    电子源的结构及其在电磁波发射管中的应用

    公开(公告)号:US4999537A

    公开(公告)日:1991-03-12

    申请号:US374781

    申请日:1989-07-03

    CPC classification number: B82Y10/00 H01J1/308 H01J1/312 H01J23/04

    Abstract: The electron source disclosed comprises a solid having a first semiconductor layer capable of releasing electrons under the effect of an electrical field, means to make at least one of its faces partially transparent to at least one part of the released electrons, and to enable this part of the electrons to be ejected from the solid, and a second unstable composite semiconductor layer having a structure having a negative differential resistance located between the first layer and its face which is at least partially transparent, in contact with the first layer. The electron source further includes means to form, with said first layer and the composite layer, an electrical resonant cavity.

    Abstract translation: 所公开的电子源包括具有能够在电场作用下释放电子的第一半导体层的固体,使得其至少一个面部至少部分地透射到释放的电子的至少一部分,并且使得该部分 以及第二不稳定复合半导体层,其具有位于第一层和其表面之间的至少部分透明的与第一层接触的具有负的差分电阻的结构。 电子源还包括与所述第一层和复合层一起形成电谐振腔的装置。

    Electronic frequency tuning magnetron
    3.
    发明授权
    Electronic frequency tuning magnetron 失效
    电子调频磁控管

    公开(公告)号:US3967155A

    公开(公告)日:1976-06-29

    申请号:US535715

    申请日:1974-12-23

    CPC classification number: H01J23/213

    Abstract: Cavity resonator electronic tubes, in particular magnetrons, with an electronic tuning system. The tuning systems in accordance with the invention consist of multipactor elements arranged directly within the resonant volumes of the tube cavities. Frequency tuning can be effected either by switching between two predetermined frequencies or by continuous change of the frequency.

    Abstract translation: 具有电子调谐系统的腔谐振器电子管,特别是磁控管。 根据本发明的调谐系统由直接设置在管腔谐振体积内的多功能元件组成。 频率调谐可以通过在两个预定频率之间切换或通过频率的连续变化来实现。

    An electron source of the field emission type
    4.
    发明授权
    An electron source of the field emission type 失效
    现场排放型电子源

    公开(公告)号:US5070282A

    公开(公告)日:1991-12-03

    申请号:US451790

    申请日:1989-12-18

    Inventor: Bernard Epsztein

    CPC classification number: H01J1/3042 H01J3/022 H01J2201/319

    Abstract: An electron source is formed by at least one elementary electron emitter in which an emissive point having a very small radius of curvature operates on the field emission principle and produces an electron beam, the intensity of which is independent of any possible variations of electron emission. The emissive point cooperates with an extracting electrode, and a control electrode having a negative potential with respect to the extracting electrode is placed downstream of the extracting electrode with respect to the direction of propagation of the beam.

    Abstract translation: 电子源由至少一个基本电子发射体形成,其中具有非常小的曲率半径的发射点对场发射原理进行操作,并产生电子束,其强度与电子发射的任何可能的变化无关。 发射点与提取电极配合,并且相对于提取电极具有负电位的控制电极相对于光束的传播方向设置在提取电极的下游。

    Parametric coupling device for traveling-waves
    5.
    发明授权
    Parametric coupling device for traveling-waves 失效
    行波参数耦合装置

    公开(公告)号:US4158177A

    公开(公告)日:1979-06-12

    申请号:US915128

    申请日:1978-06-13

    CPC classification number: H03D9/06 H03F7/00 H03D2200/0076

    Abstract: Parametric coupling device for traveling-waves, comprising a first signal wave, a second idler wave and a third pump wave, wherein a transmission line for said traveling-waves is formed on a substrate of dielectric material, which comprises a virtually continuous network of non-linear interaction elements, modulated by the pump wave, and so modulating the conduction properties of the transmission line and enabling intermodulation to be set up between the various traveling-waves. The virtually continuous network of non-linear interaction elements is a substantially plane network, each non-linear interaction element being at a distance a, or pitch of the network, from a neighbouring non-linear element, the distance a being less than the smallest of the wavelength of the signal, idler and pump waves and the plane network being disposed in the neighborhood of the upper surface of the transmission line.

    Abstract translation: 用于行波的参数耦合装置,包括第一信号波,第二惰轮和第三泵浦波,其中用于所述行波的传输线形成在介电材料的基板上,其包括实际上连续的非线性网络 线性相互作用元件,由泵浦波调制,因此调制传输线的导通特性,并实现各种行波之间的互调。 非线性相互作用元件的实际上连续的网络是基本上平面的网络,每个非线性相互作用元件距离相邻的非线性元件距离a或网络的距离,距离a小于最小的 信号的波长,惰轮和泵浦波,并且平面网络设置在传输线的上表面附近。

    Transducer for surface wave filters with reduced diffraction
    6.
    发明授权
    Transducer for surface wave filters with reduced diffraction 失效
    用于具有减少偏差的表面波滤波器的传感器

    公开(公告)号:US4083021A

    公开(公告)日:1978-04-04

    申请号:US731651

    申请日:1976-10-12

    CPC classification number: H03H9/6489 H03H9/1452 H03H9/1455 H03H9/6426

    Abstract: An input transducer for a surface wave filter with a transfer function T(F) the inverse Fourier transform of which is a function I(t) having maxima the amplitude of which vary within wide limits; such an input transducer comprises at least two elemental transducers of which one has a pulse response comprising the high-amplitude maxima of I(t), while the other(s) has/have a pulse response comprising maxima equal to n times the low-amplitude maxima of I(t); the first is fed by the signal to be filtered; the other(s) is/are fed by a signal equal to 1/n of the signal to be filtered. Such a transducer arranged at one end of a piezoelectric substrate of which the other end comprises a wide-band output transducer, provides for the construction of high quality filters.

    Electron gun for convergent beam, and a device, particularly a vidicon
tube, equipped with such a gun
    7.
    发明授权
    Electron gun for convergent beam, and a device, particularly a vidicon tube, equipped with such a gun 失效
    用于会聚束的电子枪,以及装备有这种枪的装置,特别是一个摄像管

    公开(公告)号:US4486687A

    公开(公告)日:1984-12-04

    申请号:US261466

    申请日:1981-05-07

    Inventor: Bernard Epsztein

    CPC classification number: H01J29/488 H01J29/563

    Abstract: For reducing as much as possible the dimension of converging electron beams, at their point of minimum section, the invention provides in this zone an ionic charge counterbalancing the space charge of the beam, by means of an equipotential electrode disposed about this point. Said electrode is the tube in the figure. When further modulation is applied to the beam, the electrode which ensures it is placed after it in the path thereof.

    Abstract translation: 为了尽可能减小会聚电子束的尺寸,在其最小截面处,本发明通过围绕该点设置的等电位电极在该区域中提供平衡束的空间电荷的离子电荷。 所述电极是图中的管。 当对光束进行进一步的调制时,确保将其放置在其中的电极之后。

    Extended interaction microwave oscillator including a sucession of vanes
with orifices
    8.
    发明授权
    Extended interaction microwave oscillator including a sucession of vanes with orifices 失效
    扩展相互作用的微波振荡器包括叶片的叶片与孔

    公开(公告)号:US4439746A

    公开(公告)日:1984-03-27

    申请号:US265375

    申请日:1981-05-20

    Inventor: Bernard Epsztein

    CPC classification number: H01J23/24 H01J25/11

    Abstract: This oscillator comprises a periodic structure line constituted by a succession of vanes having an orifice in which propagates a linear electron beam. This line is placed over a cavity constituted by a straight parallelepiped which has a rectangular base, whose dimensions are determined in such a way that it behaves like a waveguide at the cut-off frequency, along the longitudinal axis of the line and on a transverse magnetic or TM.sub.mn mode with m=1, 3, 5 etc. and n=1, 2, 3, 4 etc. Coupling slots are provided on the cavity between two successive vanes and in a gap between pairs of vanes. The anode voltage of the beam and the distance between two successive vanes are selected in such a way that the cavity resonates at the cut-off frequency and on the .pi. mode. Applications include measuring oscillators and heterodyne radar transmitters and receivers.

    Abstract translation: 该振荡器包括由具有传播线性电子束的孔的一系列叶片构成的周期性结构线。 该线放置在由直的平行六面体构成的空腔中,该平行六面体具有矩形基底,其尺寸以这样的方式确定,使得其沿着线的纵向轴线在截止频率处的波导和横向 磁性或TMmn模式,其中m = 1,3,5等,并且n = 1,2,3,4等。耦合槽设置在两个连续叶片之间的空腔上,并且在叶片对之间的间隙中。 选择光束的阳极电压和两个连续叶片之间的距离,使得腔体以截止频率和pi模式谐振。 应用包括测量振荡器和外差雷达发射器和接收器。

    Transducer for surface wave filters with an asymmetrical transfer
function
    9.
    发明授权
    Transducer for surface wave filters with an asymmetrical transfer function 失效
    具有不对称传递函数的表面波滤波器的传感器

    公开(公告)号:US4068141A

    公开(公告)日:1978-01-10

    申请号:US707137

    申请日:1976-07-20

    CPC classification number: H03H9/6426 H01L41/00 H03H9/1455 H03H9/30

    Abstract: An input transducer for surface wave filters having an asymmetrical transfer function comprises two pairs (5 and 6) of interdigital combs disposed side by side on the same piezoelectric substrate staggered by one quarter of the acoustic wavelength, one having a symmetrical transfer function and the other an anti-symmetrical transfer function. The asymmetrical transfer function filter is obtained by summing the two acoustic waves generated by such an input transducer in a wide band output transducer.

    Abstract translation: 具有不对称传递函数的表面波滤波器的输入传感器包括两对(5和6)叉指梳并排设置在同一个压电基片上,交错的四分之一波长的波长,一个具有对称的传递函数,另一对具有对称的传递函数 反对称传递函数。 非对称传递函数滤波器是通过对由宽带输出变换器中的这种输入传感器产生的两个声波求和来获得的。

    Noise reducer for microwave amplifier
    10.
    发明授权
    Noise reducer for microwave amplifier 失效
    微波放大器降噪器

    公开(公告)号:US4837522A

    公开(公告)日:1989-06-06

    申请号:US197320

    申请日:1988-05-23

    CPC classification number: H03F1/28 H03F3/24 H04B1/56

    Abstract: In a noise reducer for microwave amplifiers working by pulses, a small portion of the amplifier output signal is diverted through an ancillary channel. The amplitude of the pulses of this diverted signal is greatly reduced by a limiter. The noise between the pulses can then be processed in an amplifying circuit and in a phase-shifting circuit so that, by combining the main signal in a second coupler, the noise between the pulses is eliminated. This invention can be applied to transmission amplifiers forming part of a transmission/reception set where reception takes place between the transmission pulses.

    Abstract translation: 在用于通过脉冲工作的微波放大器的降噪器中,放大器输出信号的一小部分被转移通过辅助通道。 这种转向信号的脉冲幅度通过限制器大大降低。 然后可以在放大电路和移相电路中处理脉冲之间的噪声,使得通过在第二耦合器中组合主信号,消除脉冲之间的噪声。 本发明可以应用于形成在发送脉冲之间进行接收的发送/接收装置的一部分的发送放大器。

Patent Agency Ranking