Development of C-band (5712 MHz) high power waveguide components

H. Matsumoto, T. Shintake, N. Akasaka, H. Baba, A. Miura
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)  
High Power waveguide components at C-band (5712 MHz) frequencies have been developed for a main linac of e + e linear collider range of 300-500 GeV C.M. energy. 350 MW of maximum rf power has to be transmitted through the waveguide components. An EIA-WR187 (W: 44.55 mm, H: 22.15 mm and t: 4 mm) type sized conventional rectangular waveguide was chosen to reduce transmission loss to about the same order of magnitude as with existing S-band waveguide. The thickness of the wave guide was fixed to
more » ... uide was fixed to make for easy machining, and assembling for the brazing process. A vacuum waveguide flange of unisex type with a simple shape was successfully developed. A Beth-hole type coaxial coupler, E-and H-corner, directional coupler, vacuum pumping port, 3-stub tuner, viewing port and phase shifter were successfully developed all with input VSWRs of less than the 1:1.1. 530 0-7803-4376-X/98/$10.00
doi:10.1109/pac.1997.749746 fatcat:6kblr57oezgitknjjqklcyvg24