A 4G magnetron is disclosed. The magnetron may include an anode, having a cylindrical member and anode vanes disposed within the cylindrical member which define resonant cavities therebetween, and a dispenser cathode, suitable for heating and located coaxially within said anode. The magnetron may operate in a temperature range of about 850-1050 C. The magnetron may include conductive cooling. The magnetron may comprise inventive anode and cathode structures. A method for preparing a plurality of magnetron tubes substantially simultaneously is further provided.

A 4G magnetron is disclosed. The magnetron may include an anode, having a cylindrical member and anode vanes disposed within the cylindrical member which define resonant cavities therebetween, and a dispenser cathode, suitable for heating and located coaxially within said anode. The magnetron may operate in a temperature range of about 850-1050 C. The magnetron may include conductive cooling. The magnetron may comprise inventive anode and cathode structures. A method for preparing a plurality of magnetron tubes substantially simultaneously is further provided.

A high power electron tube, such as a magnetron, has the disadvantage that, to reduce the chances of the ceramic RF window failing in use, the manufacturing step entails a prolonged ageing period of powering the magnetron at low power on test, in order to drive any absorbed gases out of the RF window. According to the invention, the RF window 6 is internally glazed (8), which makes it possible to avoid the ageing period.

A high power electron tube, such as a magnetron, has the disadvantage that, to reduce the chances of the ceramic RF window failing in use, the manufacturing step entails a prolonged ageing period of powering the magnetron at low power on test, in order to drive any absorbed gases out of the RF window. According to the invention, the RF window 6 is internally glazed (8), which makes it possible to avoid the ageing period.

A system for an electro magnetic oscillator tube with enhanced isotopes is disclosed herein having at least one magnetron layer. Each layer has a first magnet, a conduction block, and a second magnet of opposite polarity. The conduction block is disposed in a plane about an emitter of isotopic particles, where an opposite electrical polarity relative to the emitter forms between the emitter and the conduction block. The conduction block has an RF port, an interaction space in its inner periphery, and a polar array of resonant cavities forming along its outer periphery, and a diamond or similar material coating the conduction block surfaces. The system also has a connection between selected groups of resonant cavities at locations of like electrical polarity, wherein the connections have conductive strapping elements within the conduction block.

A system for an electro magnetic oscillator tube with enhanced isotopes is disclosed herein having at least one magnetron layer. Each layer has a first magnet, a conduction block, and a second magnet of opposite polarity. The conduction block is disposed in a plane about an emitter of isotopic particles, where an opposite electrical polarity relative to the emitter forms between the emitter and the conduction block. The conduction block has an RF port, an interaction space in its inner periphery, and a polar array of resonant cavities forming along its outer periphery, and a diamond or similar material coating the conduction block surfaces. The system also has a connection between selected groups of resonant cavities at locations of like electrical polarity, wherein the connections have conductive strapping elements within the conduction block.

A microwave generation system comprising a microwave generator, a pulse generator and an impedance network. The pulse generator is arranged to provide pulses of electrical power to the microwave generator and is operable to vary the power of the pulses of electrical power which are provided to the microwave generator. The impedance network is connected between the pulse generator and the microwave generator. The impedance network is switchable so as to substantially match an impedance across the pulse generator according to variations in the impedance of the microwave generator.

A microwave generation system comprising a microwave generator, a pulse generator and an impedance network. The pulse generator is arranged to provide pulses of electrical power to the microwave generator and is operable to vary the power of the pulses of electrical power which are provided to the microwave generator. The impedance network is connected between the pulse generator and the microwave generator. The impedance network is switchable so as to substantially match an impedance across the pulse generator according to variations in the impedance of the microwave generator.

A magnetron includes a yoke, an upper magnet, an upper pole piece located at a lower side of the upper magnet, a fifth-harmonic-frequency choke located at an upper side of the upper pole piece, a third-harmonic-frequency at a lower side of the fifth-harmonic-frequency choke, a ceramic part located at an upper end of the fifth-harmonic-frequency choke and configured to output an electromagnetic wave including a plurality of frequencies, a fourth-harmonic-frequency choke that is bent inward from the ceramic part and that is welded to an upper end of the ceramic part, and a second-harmonic-frequency choke that is welded to the fourth-harmonic-frequency choke and that extends upward and downward along a heightwise direction. The third-harmonic-frequency choke, fifth-harmonic-frequency choke, and second-harmonic-frequency choke are configured to block harmonic frequencies of the electromagnetic wave.

A magnetron includes a yoke, an upper magnet, an upper pole piece located at a lower side of the upper magnet, a fifth-harmonic-frequency choke located at an upper side of the upper pole piece, a third-harmonic-frequency at a lower side of the fifth-harmonic-frequency choke, a ceramic part located at an upper end of the fifth-harmonic-frequency choke and configured to output an electromagnetic wave including a plurality of frequencies, a fourth-harmonic-frequency choke that is bent inward from the ceramic part and that is welded to an upper end of the ceramic part, and a second-harmonic-frequency choke that is welded to the fourth-harmonic-frequency choke and that extends upward and downward along a heightwise direction. The third-harmonic-frequency choke, fifth-harmonic-frequency choke, and second-harmonic-frequency choke are configured to block harmonic frequencies of the electromagnetic wave.