A New Design for A Super-Conducting Cavity Input Coupler

H. Matsumoto, S. Kazakov, K. Saito
Proceedings of the 2005 Particle Accelerator Conference  
An attractive structure using capacitive coupling has been found for the input coupler for the 45 MV/m versions of the International Linear Collider (ILC) project. The coupler supports an electrical field gradient of ~1 kV/m around the rf window ceramic with 500 kW through power, a VSWR of 1.1 and an overall frequency bandwidth of 100 MHz. No unwanted resonances were found in the rf window near the first and second harmonics of the operation frequency.
doi:10.1109/pac.2005.1591744 fatcat:n733ygzpqraydozavnrvlorsya