S parameters of a single coupler extracted from the whole SWS system

In this paper, the S parameters of a single coupler are extracted from the whole slow-wave-structure (SWS) system. The basic theory is derived. The simulation model is built up based on the helix SWS in the code CST Microwave Studio. The whole S parameters of the system are simulated. The parameters of a single coupler are obtained from the whole parameters based on the derived theory. The results can be used to evaluate the match characteristics of a single coupler to the helix SWS system.

[1]  Zhaojun Zhu,et al.  Application of CAD Simulation Technology in Microwave Tube Research and Fabrication , 2006, 2006 IEEE International Vacuum Electronics Conference held Jointly with 2006 IEEE International Vacuum Electron Sources.

[2]  Baofu Jia,et al.  The computation of the characteristic impedance for vane-loaded helix , 2000, Abstracts. International Vacuum Electronics Conference 2000 (Cat. No.00EX392).