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    Magnetrons
    2.
    发明公开
    Magnetrons 失效
    磁控管

    公开(公告)号：EP0441569A3

    公开(公告)日：1992-03-25

    申请号：EP91300879.3

    申请日：1991-02-04

    申请人： EEV LIMITED

    发明人： Robertson, Mark Andrew

    IPC分类号： H01J23/213 ,  H01J25/593

    CPC分类号： H01J25/593 ,  H01J23/213

    摘要： A magnetron having a rising sun anode includes a slot 8 which is extensive in a plane transverse to the axis X-X and in which a tuning member 9 is located. The tuning member 9 may be moved inwardly and outwardly to control the frequency of the magnetron output radiation, the member 9 being arranged such that it can intercept one or more of the larger anode cavities by a variable amount to change their resonant characteristics.

    Spin tuned magnetron
    3.
    发明公开
    Spin tuned magnetron 失效
    与旋转调谐磁控管。

    公开(公告)号：EP0009903A1

    公开(公告)日：1980-04-16

    申请号：EP79301905.0

    申请日：1979-09-17

    申请人： THORN EMI-VARIAN LIMITED

    发明人： Baker, John Edwin

    IPC分类号： H01J23/213 ,  F16C39/02

    CPC分类号： F16C25/083 ,  F16C41/02 ,  H01J23/213

    摘要： A spin tuned magnetron includes a spinner (3) which interacts with a magnetron cavity to modulate its frequency of oscillation. The spinner runs in bearings (8, 9) around a shaft (7). The lives of the bearings are a controlling factor in the life of the magnetron.
    The outer races (OR) are fixed in position relative to each other and to the spinner by spacers (13, 14) and a spring (15) arranged between an abutment (11) and a circlip (12) on the spinner. The inner races (IR) are arranged to be moveable relative to each other and to the shaft by virtue of spacers (10) and (17), a spring (16) between the inner races, and a further spring (18). A pole-piece nose (4) is arranged to be screwed down on the shaft to compress the springs (16) and (18) to provide a desired amount of axial float on the spinner. By setting the axial float the bearing load can be shared as desired and thus increase the lives of the bearings.

    MAGNETRON
    4.
    发明授权
    MAGNETRON 有权

    公开(公告)号：EP3041025B1

    公开(公告)日：2018-05-30

    申请号：EP14839881.1

    申请日：2014-08-27

    申请人： Toshiba Hokuto Electronics Corp.

    发明人： HIGASHI, Masatoshi

    IPC分类号： H01J23/10 ,  H01J23/04 ,  H01J23/22 ,  H01J25/52 ,  H01J25/587 ,  H01J23/213

    CPC分类号： H01J25/52 ,  H01J23/04 ,  H01J23/10 ,  H01J23/213 ,  H01J23/22 ,  H01J25/587

    摘要： Provided is a low-cost magnetron that is excellent in productivity without any adverse effect on characteristics. Two large and small strap rings 11 (11A and 11B) are only disposed at lower ends, or input sides, of a plurality of vanes 10 (10A and 10B) in the direction of a tube axis m. Diameter Rip of a protruding flat surface 41 of an input side pole piece 18 is larger than diameter Rop of a protruding flat surface 40 of an output side pole piece 17. Therefore, it is possible to provide a practical magnetron without a significant decrease in productivity or characteristics from a conventional one, while cutting costs by reducing the number of parts with the use of two strap rings on one side.

    Magnetron
    5.
    发明公开
    Magnetron 有权
    磁控

    公开(公告)号：EP2085999A3

    公开(公告)日：2010-07-28

    申请号：EP09250139.4

    申请日：2009-01-20

    申请人： E2V Technologies (UK) Limited

    发明人： Sobieradzki, Edward Stanley

    IPC分类号： H01J23/213 ,  H01J23/40 ,  H01J25/587

    CPC分类号： H01J23/213 ,  H01J23/40 ,  H01J25/587

    摘要： A magnetron has a first set of vanes 30 etc which connect by legs 52 to a coaxial output coupler 51 and a second set of vanes 19 etc which (in one embodiment) alternate with the vanes of the first set and are not connected to the output coupler. The vanes of each set are held, for example, by strap rings which may be distributed along the length of the anode, at the same potential as each other, and the polarity of the vanes of one set is opposite to that of the other set. A problem with such a magnetron is that there is capacitive coupling between the cathode and the output coupler 51, which can lead to the coaxial TEM mode propagating along the cathode. According to the invention, additional capacitive coupling is introduced by means of axial extensions 19a etc on the ends of the set of vanes 19 etc which are not connected to the output coupler, and by choice of dimensions, the cathode is substantially decoupled from the output coupler because of the opposite polarity of the two sets of vanes.

    摘要翻译： 磁控管具有第一组叶片30等，其通过腿部52连接到同轴输出联接器51和第二组叶片19等等（在一个实施例中）与第一组的叶片交替并且不连接到输出 耦合器。 每组的叶片例如通过可沿阳极长度分布的带环彼此保持相同的电位，并且一组的叶片的极性与另一组的叶片的极性相反 。 这种磁控管的问题是在阴极和输出耦合器51之间存在电容耦合，这可能导致沿着阴极传播的同轴TEM模式。 根据本发明，附加的电容耦合借助于未连接到输出耦合器的一组叶片19等的端部上的轴向延伸部19a等引入，并且通过选择尺寸，阴极基本上与输出端解耦 因为两组叶片的极性相反。

    An arrangement in a tunable magnetron
    7.
    发明公开
    An arrangement in a tunable magnetron 失效
    安装在可控磁铁中的安排

    公开(公告)号：EP0196133A3

    公开(公告)日：1987-08-19

    申请号：EP86200421

    申请日：1986-03-18

    申请人： Philips Norden AB ,  N.V. Philips' Gloeilampenfabrieken

    发明人： Agoston, Andras

    IPC分类号： H01J23/20 ,  H01J23/213 ,  H02K49/10

    CPC分类号： H02K49/106 ,  H01J23/20 ,  H02K5/128

    摘要： The invention relates to a tunable magnetron comprising a rotatable tuning element (10) projecting into a ring shaped interaction space between coaxially arranged cathode and anode systems. The tuning element (10) is driven by an electric motor (11) and produces upon rotation a periodic variation of the tuning. The tuning element (10) is situated within the evacuated space of the magnetron and the motor - (11) in situated outside said space. The drive torque of the motor is then transferred to the tuning element via a coupling (12) having two active parts situated one on each side of the evacuated envelope (17) of the magnetron. Such a coupling can only transfer a limited torque. According to the invention the magnetron comprises means for limiting the torque which can be transferred to the coupling (12), both upon starting and stopping, for example a torque limiter (21-26) between the motor (11) and the coupling (12), whereby the start and stop procedures can be performed with optimum torque. Therefore starting and stopping of the tuning element (10), for example when switching between different fixed frequencies, can be made with maximum speed (fig.3).

    Magnetron
    8.
    发明公开
    Magnetron 有权
    磁控

    公开(公告)号：EP2085999A2

    公开(公告)日：2009-08-05

    申请号：EP09250139.4

    申请日：2009-01-20

    申请人： E2V Technologies (UK) Limited

    发明人： Sobieradzki, Edward Stanley

    IPC分类号： H01J23/213 ,  H01J25/587

    CPC分类号： H01J23/213 ,  H01J23/40 ,  H01J25/587

    摘要： A magnetron has a first set of vanes 30 etc which connect by legs 52 to a coaxial output coupler 51 and a second set of vanes 19 etc which (in one embodiment) alternate with the vanes of the first set and are not connected to the output coupler. The vanes of each set are held, for example, by strap rings which may be distributed along the length of the anode, at the same potential as each other, and the polarity of the vanes of one set is opposite to that of the other set. A problem with such a magnetron is that there is capacitive coupling between the cathode and the output coupler 51, which can lead to the coaxial TEM mode propagating along the cathode. According to the invention, additional capacitive coupling is introduced by means of axial extensions 19a etc on the ends of the set of vanes 19 etc which are not connected to the output coupler, and by choice of dimensions, the cathode is substantially decoupled from the output coupler because of the opposite polarity of the two sets of vanes.

    摘要翻译： 磁控管具有第一组叶片30等，其通过腿部52连接到同轴输出耦合器51和第二组叶片19等（在一个实施例中）与第一组叶片交替并且不连接到输出端 耦合器。 每个组件的叶片例如由沿着阳极长度分布的带环保持彼此相同的电位，并且一组叶片的极性与另一组的叶片的极性相反 。 这种磁控管的问题在于阴极和输出耦合器51之间存在电容耦合，这可以导致沿着阴极传播的同轴TEM模式。 根据本发明，通过轴向延伸部分19a等引入额外的电容耦合，该组件在叶片组19等的不连接到输出耦合器的端部上，并且通过选择尺寸，阴极基本上与输出端分离 因为两套叶片的极性相反。