An apparatus for coupling to an input connection of an electron gun, the input connection having a heater terminal and a cathode terminal, includes: a connector having a first end and a second end; wherein the first end of the connector is configured to attach to a cable; wherein the second end of the connector is configured to connect to the input connection of the electron gun; and wherein the connector comprises an opening configured to receive the heater terminal of the input connection of the electron gun.

An apparatus for coupling to an input connection of an electron gun, the input connection having a heater terminal and a cathode terminal, includes: a connector having a first end and a second end; wherein the first end of the connector is configured to attach to a cable; wherein the second end of the connector is configured to connect to the input connection of the electron gun; and wherein the connector comprises an opening configured to receive the heater terminal of the input connection of the electron gun.

An apparatus for coupling to an input connection of an electron gun, the input connection having a heater terminal and a cathode terminal, includes: a connector having a first end and a second end; wherein the first end of the connector is configured to attach to a cable; wherein the second end of the connector is configured to connect to the input connection of the electron gun; and wherein the connector comprises an opening configured to receive the heater terminal of the input connection of the electron gun.

An apparatus for attachment to a component of a microwave device, includes: a cage; a shield within the cage, wherein the shield is in a form of a container, at least a majority of the shield spaced away from an interior wall of the cage; and a connector at the cage, wherein the connector is configured to connect to a cable connection, and wherein the connector is electrically connected to two terminals within the shield. An apparatus for coupling to an input connection of an electron gun, the input connection having a heater terminal and a cathode terminal, the apparatus comprising: a connector having a first configured to attach to a cable, and a second end configured to connect to the input connection of the electron gun; and wherein the connector comprises an opening configured to receive the heater terminal of the input connection of the electron gun.

An antenna part of a magnetron includes an exhaust portion that is connected to an antenna conductor derived from an anode part and has an output terminal from which a microwave is outputted, and an output-side ceramic stem that holds internally the antenna conductor and is firmly fixed to the exhaust portion to insulate electrically a side pipe connected to the anode part of a main body of the magnetron from the exhaust portion. An antenna part further includes an antenna cap that is joined to the exhaust portion by a conductive adhesive arranged on an outer periphery of the exhaust portion. Accordingly, it is possible to provide the magnetron that can prevent occurrence of electric discharge between the antenna cap and the exhaust portion.

An antenna part of a magnetron includes an exhaust portion that is connected to an antenna conductor derived from an anode part and has an output terminal from which a microwave is outputted, and an output-side ceramic stem that holds internally the antenna conductor and is firmly fixed to the exhaust portion to insulate electrically a side pipe connected to the anode part of a main body of the magnetron from the exhaust portion. An antenna part further includes an antenna cap that is joined to the exhaust portion by a conductive adhesive arranged on an outer periphery of the exhaust portion. Accordingly, it is possible to provide the magnetron that can prevent occurrence of electric discharge between the antenna cap and the exhaust portion.

An apparatus for attachment to a component of a microwave device, includes: a cage; a shield within the cage, wherein the shield is in a form of a container, at least a majority of the shield spaced away from an interior wall of the cage; and a connector at the cage, wherein the connector is configured to connect to a cable connection, and wherein the connector is electrically connected to two terminals within the shield. An apparatus for coupling to an input connection of an electron gun, the input connection having a heater terminal and a cathode terminal, the apparatus comprising: a connector having a first configured to attach to a cable, and a second end configured to connect to the input connection of the electron gun; and wherein the connector comprises an opening configured to receive the heater terminal of the input connection of the electron gun.

Example electron gun, vacuum device, and system are provided. An example electron gun includes a cathode, a focus electrode, and an energy exchange module. The energy exchange module includes an anode port, a signal input port, and an energy exchange unit. An input signal is input from the signal input port of the energy exchange module into the energy exchange unit of the energy exchange module, and energy exchange with the input signal is performed by transmitting an electron beam from the anode port of the energy exchange module to the energy exchange unit of the energy exchange module. The electron beam is generated by the cathode, the focus electrode, and the anode port.

Example electron gun, vacuum device, and system are provided. An example electron gun includes a cathode, a focus electrode, and an energy exchange module. The energy exchange module includes an anode port, a signal input port, and an energy exchange unit. An input signal is input from the signal input port of the energy exchange module into the energy exchange unit of the energy exchange module, and energy exchange with the input signal is performed by transmitting an electron beam from the anode port of the energy exchange module to the energy exchange unit of the energy exchange module. The electron beam is generated by the cathode, the focus electrode, and the anode port.

A radially-fed RF power combiner combines a plurality of input signals to generate a single fundamental-mode transverse electromagnetic (TEM) output. The combiner comprises a vacuum coaxial transmission line having a plurality of coaxial vacuum feedthroughs configured to receive the input signals. The feedthroughs are arranged radially around the vacuum coaxial transmission line. The inner conductive surface of the vacuum coaxial transmission line may comprise a cylindrical conductive base and a plurality of radially-aligned conductive ridges azimuthally distributed within a vacuum envelope of the vacuum coaxial transmission line. Each of the conductive ridges may be coupled to a center conductor of a corresponding one of the coaxial vacuum feedthroughs. The conductive ridges may have a taper to provide an increasing gap between the top of the conductive ridges and an outer conductive surface of the vacuum coaxial transmission line. The increasing gap may gradually transition the input signals from each coaxial vacuum feedthrough to quasi-TEM mode signals within the vacuum envelope allowing the quasi-TEM mode signals from each conductive ridge to spread azimuthally within the vacuum envelope and combine to generate a substantially pure TEM mode signal.