Author :
Kim, Hak S. ; Uhm, Han S. ; Park, Gwan Soo
Author_Institution :
Inst. for Adv. Eng., Plasma Technol. Center, Kyonggi-do, South Korea
Abstract :
Summary form only given, as follows. Summary form only given. Manufacturing technologies for heavily-loaded helix TWT has been developed in Korea. There are many devices equipped for the manufacturing TWT in a new facility. We have designed and fabricated Laser Welding M/C, RF Brazer, Vacuum Exhaust System, Pyrolitic Deposition M/C, Triangulation & Compression M/C for manufacturing helix TWT for special purpose. Besides, we have developed key technologies for helix TWT, such as fixture design for assembly and test, furnace brazing for part assembly, RF brazing, triangulation & compression for helix circuit assembly, magnetization & tuning for PPM, metalizing & nickelizing for ceramic metallization, carbon coating on the ceramic rod, laser welding for assembly with coupler and helix circuit, vacuum exhaust for baking TWT envelope, vacuum sealing inspection, and thermal analysis on the couplers. With these technologies and devices, we have fabricated and tested helix TWT, which delivers 43 Watts at 9 GHz with 10 mW as an input drive signal.
Keywords :
brazing; travelling wave tubes; 10 mW; 43 W; 9 GHz; RF brazing; carbon coating; ceramic metallization; heavily-loaded helix traveling wave tube; helix circuit assembly; magnetization; nickelizing; pyrolitic deposition; vacuum exhaust system; Assembly; Ceramics; Circuit testing; Coupling circuits; Laser tuning; Magnetic circuits; Manufacturing; Optical design; Radio frequency; Welding;
