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Title: Comparison of Measured and Calculated Coupling between a Waveguide and an RF Cavity Using CST Microwave Studio

Abstract

Accurate predications of RF coupling between an RF cavity and ports attached to it have been an important study subject for years for RF coupler and higher order modes (HOM) damping design. We report recent progress and a method on the RF coupling simulations between waveguide ports and RF cavities using CST Microwave Studio in time domain (Transit Solver). Comparisons of the measured and calculated couplings are presented. The simulated couplings and frequencies agree within {approx} 10% and {approx} 0.1% with the measurements, respectively. We have simulated couplings with external Qs ranging from {approx} 100 to {approx} 100,000, and confirmed with measurements. The method should also work well for higher Qs, and can be easily applied in RF power coupler designs and HOM damping for normal-conducting and superconducting cavities.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA
Sponsoring Org.:
USDOE - Office of Energy Research (ER)
OSTI Identifier:
890579
Report Number(s):
JLAB-ACC-06-473; DOE/ER/40150-4021; TUPCH133
TRN: US0604686
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Conference
Resource Relation:
Conference: European Particle Accelerator Conference (EPAC 06), Edinburgh, Scotland, 26-30 Jun 2006
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; CAVITIES; DAMPING; DESIGN; WAVEGUIDES

Citation Formats

J. Shi, H. Chen, S. Zheng, D. Li, R.A. Rimmer, and H. Wang. Comparison of Measured and Calculated Coupling between a Waveguide and an RF Cavity Using CST Microwave Studio. United States: N. p., 2006. Web.
J. Shi, H. Chen, S. Zheng, D. Li, R.A. Rimmer, & H. Wang. Comparison of Measured and Calculated Coupling between a Waveguide and an RF Cavity Using CST Microwave Studio. United States.
J. Shi, H. Chen, S. Zheng, D. Li, R.A. Rimmer, and H. Wang. Mon . "Comparison of Measured and Calculated Coupling between a Waveguide and an RF Cavity Using CST Microwave Studio". United States. doi:. https://www.osti.gov/servlets/purl/890579.
@article{osti_890579,
title = {Comparison of Measured and Calculated Coupling between a Waveguide and an RF Cavity Using CST Microwave Studio},
author = {J. Shi and H. Chen and S. Zheng and D. Li and R.A. Rimmer and H. Wang},
abstractNote = {Accurate predications of RF coupling between an RF cavity and ports attached to it have been an important study subject for years for RF coupler and higher order modes (HOM) damping design. We report recent progress and a method on the RF coupling simulations between waveguide ports and RF cavities using CST Microwave Studio in time domain (Transit Solver). Comparisons of the measured and calculated couplings are presented. The simulated couplings and frequencies agree within {approx} 10% and {approx} 0.1% with the measurements, respectively. We have simulated couplings with external Qs ranging from {approx} 100 to {approx} 100,000, and confirmed with measurements. The method should also work well for higher Qs, and can be easily applied in RF power coupler designs and HOM damping for normal-conducting and superconducting cavities.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jun 26 00:00:00 EDT 2006},
month = {Mon Jun 26 00:00:00 EDT 2006}
}

Conference:
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