Electron tube
The electron tube design enhances insulation by connecting the waveguide and shield casing interiors via a communication hole, allowing for high-power operation by using pressurized gases or vacuum, addressing the challenge of maintaining insulation at high input voltages.
Patent Information
- Authority / Receiving Office
- GB · GB
- Patent Type
- Patents
- Current Assignee / Owner
- NISSHINBO MICRO DEVICES INC
- Filing Date
- 2022-12-28
- Publication Date
- 2026-07-02
AI Technical Summary
Existing electron tubes face challenges in achieving high-power output due to insufficient insulation withstand voltage at the input portion, particularly when operating at high input voltages, and complex structures to maintain insulation are difficult to implement without leakage or structural complexity.
The electron tube design includes a sealable shield casing surrounding the cathode lead and a communication hole connecting the waveguide interior with the shield casing, allowing for the use of pressurized dry air, sulfur hexafluoride gas, or vacuum to enhance insulation without a complex structure.
This configuration improves the withstand voltage at the input portion, enabling high-power operation up to 3MW with an input voltage of 46kV, preventing electric discharge and maintaining insulation effectively.
Smart Images

Figure 00000001_0000 
Figure 00000002_0000 
Figure 00000003_0000