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11. 发明专利

JPH05182595A ELECTRON GUN 失效
公开(公告)号：JPH05182595A
公开(公告)日：1993-07-23
申请号：JP1814792
申请日：1992-01-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAHIKO
IPC分类号： H01J9/14 , H01J3/02 , H01J23/06
摘要： PURPOSE:To miniaturize and simplify the structure of an electron gun and eliminate the necessity of adjusting the arrangement and position of a shadow grid relative to a cathode and increase reliability of operation of the electron gun and the ease with which the electron gun is assembled. CONSTITUTION:A shadow grid 19 is simultaneously positioned relative to and fitted along the outer peripheral structure 17 of a cathode 15 and the peripheral portion of the shadow grid 19 is welded onto the flat surface 17a of the outer peripheral structure 17 through a welding hole 20, whereby the shadow grid 19 and the structure 17 are coupled and held in a predetermined positional relation to each other.

12. 发明专利

JPH05182594A TRAVELING WAVE GUIDE TUBE 失效
公开(公告)号：JPH05182594A
公开(公告)日：1993-07-23
申请号：JP1814892
申请日：1992-01-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAHIKO
IPC分类号： H01J23/00 , H01J23/36
摘要： PURPOSE:To provide a traveling wave guide of excellent heat stability by alternately joining a plurality of annular pole pieces and a plurality of spacers to one another, and effecting heat insulation by means of reduction of the wall thickness of a spacer near a collector along the radial direction of the spacer. CONSTITUTION:The bore a2 of a spacer 13 intervening between a high frequency output protion 11 and a collector 3 is larger than the bore a1 of another spacer 6 and is reduced in its radial wall thickness. Pole pieces 5 adjacent the spacer 13 are hermetically joined together by solder material 14. The area within which the heat transfer passage of each pole piece 5 makes contact with that of the collector 4 along their axial direction is thereby reduced. A main body portion and the collector 4 are thermally insulated from each other by increasing the heat resistance of that portion. As a result, the temperature rise of the main body portion due to heating of the collector 4 is restrained and the main body portion and the collector 4 can be independently cooled. Therefore, a traveling wave guide tube of excellent heat stability can be obtained.

13. 发明专利

JPS63221537A TRAVELING-WAVE TUBE 失效
公开(公告)号：JPS63221537A
公开(公告)日：1988-09-14
申请号：JP5590287
申请日：1987-03-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAHIKO
IPC分类号： H01J23/26 , H01J23/40
摘要： PURPOSE:To facilitate the positioning of the coupling by providing a projection over the whole length in the axial direction on the outer periphery of the input and output matching element of a spiral traveling-wave tube and providing a groove on the inner face of a metal cylinder to be coupled with it so that the projection is inserted into the groove. CONSTITUTION:An input and output matching element 7 has notches 6 provided to avoid dielectric bars 1 supporting a spiral 2 and a projection 8 provided over the whole length in the axial direction. A cut groove 9 to be engaged with this projection 8 is provided on a metal cylinder 3. According to this structure, the matching element 7 can be inserted and coupled with the cylinder 3 while the projection 8 is engaged with the groove 9, thus the rotation can be prevented. As a result, the insertion of the matching element 7 is facilitated, and the breakage of the dielectric bars 1 during the insertion is prevented.

14. 发明专利

JP2000183613A COAXIAL WAVEGUIDE CONVERTER 失效
公开(公告)号：JP2000183613A
公开(公告)日：2000-06-30
申请号：JP35319698
申请日：1998-12-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAHIKO
IPC分类号： H01P5/08 , H01P5/103 , H01R13/646
摘要： PROBLEM TO BE SOLVED: To enhance stability of a traveling wave tube by keeping contact pressure between the outer conductor of a coaxial cable and a fitting part of a waveguide satisfactorily, so as to reduce a high frequency resistance and preventing exfoliation of a metallic piece or the like onto a ceramic window produced, when the coaxial outer conductor and the waveguide are attached to/detached from each other. SOLUTION: A facing 10 is provided to a fitted part of a waveguide 3 to a coaxial outer conductor part 4, after a plate 7A made of a material with hardness equal to or harder than that of the coaxial outer conductor part 4 is closely fixed to the facing 10 with a fixing screw, a fitted part 5 of the coaxial outer conductor part 4 is fitted to a through-hole 7k of the plate 7A so as to couple the coaxial outer conductor part 4 and the waveguide 3. Thus, the surface of the waveguide fitting part has hardness equal to or more than the surface of the coaxial outer conductor part 4, and both the surfaces of the fitting parts becomes hard to be cut. As a result, fall of a metallic piece onto a ceramic window can be reduced.

15. 发明专利

JP2000173484A TRAVELING WAVE TUBE 失效
公开(公告)号：JP2000173484A
公开(公告)日：2000-06-23
申请号：JP35179398
申请日：1998-12-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： NORO TADASHI , SUZUKI MASAHIKO
IPC分类号： H01J23/26
摘要： PROBLEM TO BE SOLVED: To improve brazing reliability for a vacuum envelop of a metal loaded element and realize a dispersion characteristic according to a purpose, by forming the metal loaded element with a metal element on the inner surface of the cylindrical vacuum envelop having a delay wave circuit spiral on the central axis, and by fixing a film-shaped brazing material film part to this. SOLUTION: A metal loaded element 1 is constituted with a film-shaped brazing material film part 3 and a metal element 2 on the outer surface of the metal element 2, preferably with plating, deposition, sputtering or pressure connection of hard brazing material, preferably gold wax, and the brazing material film part 3 is heated in a furnace and brazed in a state of facing the inner surface of a vacuum envelop. The metal loaded element 1 has a two- layered structure to prevent deformation, and improves operability and mounting accuracy without requiring preparation of another brazing material in brazing. A structure where the facing surface between inner surface of the vacuum envelop of the metal loaded element 1 and a delay wave circuit spiral is bent is preferable, and effects to close adherence and dispersion characteristic gradient of the delay wave circuit are much increased.

16. 发明专利

JPH05114363A GRID TYPE ELECTRON GUN 失效
公开(公告)号：JPH05114363A
公开(公告)日：1993-05-07
申请号：JP30270991
申请日：1991-10-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAEDA SUSUMU , SUZUKI MASAHIKO , IEKI YOJI
IPC分类号： H01J1/46 , H01J23/06
摘要： PURPOSE:To obtain a grid type electron gun which can prevent electron beam current from being lowered with a shadow grid formed into a structure hardly deformed. CONSTITUTION:A shadow grid 4 is welded closely to the front face of a cathode 1 via a joining metal 8, and a control grid 3 and an anode 2 are disposed in front of the shadow grid. By this constitution, the shadow grid is hardly deformed, electron beam current is thereby prevented from being lowered, and the control grid is also prevented from being thermally deformed.

17. 发明专利

JPS6394538A TRAVELING WAVE TUBE 失效
公开(公告)号：JPS6394538A
公开(公告)日：1988-04-25
申请号：JP23957586
申请日：1986-10-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAHIKO
IPC分类号： H01J23/40
摘要： PURPOSE:To suppress an irregular change of impedance by providing a kerf on the outer conductor of a coaxial circuit and absorbing a wax material flowing into the coaxial circuit to this kerf. CONSTITUTION:A kerf 11 is provided on the inner surface of an outer conductor 10 constituting a coaxial circuit 3. The width and depth of the kerf 11 are determined so that a flowing-in wax material 9 can be absorbed. The flowing-in wax material 9 can be absorbed by this kerf 11 by providing the kerf 11 even if the wax material 9 flows into the outer conductor 10 when a window aggregate 7 and the outer conductor 10 are brazed, and a change of impedance due to the wax material 9 can be suppressed. That is, the inner diameter (a) of the outer conductor 10 as seen by microwaves is invariably kept at a constant size, an irregular change of the inner diameter (a) of the outer conductor 10 due to the wax material 9 is suppressed, and the characteristic impedance of the coaxial circuit 3 is kept constant.

18. 发明专利

JPH1154058A TRAVELING-WAVE TUBE 失效
公开(公告)号：JPH1154058A
公开(公告)日：1999-02-26
申请号：JP20911197
申请日：1997-08-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAHIKO
IPC分类号： H01J23/40 , H01J23/00
摘要： PROBLEM TO BE SOLVED: To provide a traveling-wave tube having a stable RF output characteristic, by suppressing mismatching in an interface with an external Circuit. SOLUTION: A coaxial circuit 30 comprises, in a divided manner, an RF take-out side coaxial circuit part 31 wherein an externally coaxial inner conductor 41 is fixed in an L-shaped through hole 40c in a body part 40 by an RF take-out side dielectric 42, an externally coaxial outer conductor 33 for connection and a dielectric 34 for connection. The externally coaxial outer conductor 33 for connection is fastened to an outer conductor 15 of an output line plug 11 and the connection-side dielectric 34 is housed in a through hole 33a in the connection-side externally coaxial outer conductor 33. The externally coaxial outer conductor 41 is connected to an inner conductor 14 through a through hole 34a in the connection-side dielectric 34. The connection-side externally coaxial outer conductor 33 is clamped to a first and a second heat block 37, 38 fastened to each other by an attaching bolt 51.

19. 发明专利

JPH03233833A TRAVELING WAVE TUBE 失效
公开(公告)号：JPH03233833A
公开(公告)日：1991-10-17
申请号：JP2912290
申请日：1990-02-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAHIKO
IPC分类号： H01J23/40
摘要： PURPOSE:To match the impedance of a slow-wave circuit and a coaxial junction plug by dividing an impedance matching cylindrical member into a slow-wave circuit side member facing between a metal cylinder and the slow-wave circuit and a coaxial Junction plug side member provided in the slow-wave circuit side member freely to move in the axial direction of the metal cylinder and facing to an inner conductor of the coaxial Junction plug. CONSTITUTION:An impedance matching cylindrical member 11 to be connected to a metal cylinder 1 is inserted into a part corresponding to a coaxial Junction plug in the metal cylinder 1. This cylindrical member 11 is divided into a slow-wave circuit side member 12 facing between the metal cylinder 1 and the slow-wave circuit 2 and a coaxial Junction plug side member 14 provided in this slow-wave circuit side member 12 freely to move in the axial direction of the metal cylinder 1 and facing to an inner conductor 6 of the coaxial junction plug. Consequently, the slow-wave circuit side member 12 and the coaxial Junction plug side member 14 of the impedance matching cylindrical member 11 can move in the metal cylinder 1 in parallel with each other separately. Since an insertion length L and a gap (g) can be separately adjusted with a pair of impedance matching cylindrical member, fine adjustment can be performed at the time of matching the impedance, and the impedance can be matched at more optimum value.

20. 发明专利

JPS6381732A TRAVELING WAVE TUBE 失效
公开(公告)号：JPS6381732A
公开(公告)日：1988-04-12
申请号：JP22676986
申请日：1986-09-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAHIKO
IPC分类号： H01J23/087
摘要： PURPOSE:To obtain a traveling wave tube having a stable beam characteristic and a good heat radiation characteristic by fitting an adhesive containing magnetic metal powder directly to permanent magnets in a periodic magnetic field device to adjust the magnetic field distribution in the periodic magnetic field device. CONSTITUTION:A traveling wave tube is constituted of an electron gun 1, a collector 3, and a periodic magnetic field device 4 which is provided between the electron gun 1 and the collector 3 and combined with multiple pole pieces 6 made of ferromagnetic material and multiple annular permanent magnets 5 in turn. An adhesive 11 containing magnetic metal powder is stuck to the permanent magnets 5 so that the magnetic field distribution formed in the periodic magnetic field device 4 is made uniform. By sticking the adhesive directly to the magnets, a magnetic short circuit is obtained in the periodic magnetic field device, which can be fixed without generating an adiabatic layer. The magnetic field distribution affecting the permeability of the electron beam can be fine adjusted depending on the quantity of the adhesive, and a good heat radiation characteristic and a stable beam characteristic can be obtained.

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