Title :
A compact RF power coupler for the NLC linac
Author :
Bowden, C. ; Fowkes, W.B. ; Loewen, K.J. ; Miller, R.H. ; Ng, C. ; Pearson, C. ; Wang, J.W.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
A high power RF coupler connecting WR90 rectangular waveguide to the disc loaded waveguide accelerating structure of NLC is described. The coupler design is symmetric and free of beam deflecting field components. It makes an efficient electrical match between the rectangular waveguide power feed and the accelerator structure while keeping electrical surface field enhancement low. Electrical and mechanical design of the coupler are presented as well as quantitative comparisons between numerical simulation and low power cold test models
Keywords :
accelerator RF systems; electron accelerators; linear colliders; waveguide couplers; 11.424 GHz; NLC; WR90 rectangular waveguide; beam deflecting field components; cold test models; compact RF power coupler; disc loaded waveguide accelerating structure; electrical design; electrical match; electrical surface field enhancement; high power RF coupler; linac; mechanical design; Acceleration; Feeds; Joining processes; Linear particle accelerator; Loaded waveguides; Optical coupling; Radio frequency; Rectangular waveguides; Structural discs; Surface waves;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792325
