Bench Measurements and Simulations of Beam Coupling Impedance

TL;DR

This paper reviews methods for calculating and measuring beam coupling impedance, including theoretical principles, simulation techniques, and RF bench measurements, highlighting procedures and limitations of wire measurement methods.

Contribution

It provides a comprehensive overview of both computational and experimental approaches to beam coupling impedance, emphasizing RF bench measurement procedures and their constraints.

Findings

Wire measurement techniques are effective but have limitations.

Simulation methods complement measurements for impedance analysis.

The paper discusses the accuracy and limitations of RF bench measurements.

Abstract

After a general introduction, the basic principles of wake-field and beamcoupling- impedance computations are explained. This includes time domain, frequency domain, and methods that do not include excitations by means of a particle beam. The second part of this paper deals with radio frequency bench measurements of beam coupling impedances. The general procedure of the wire measurement is explained, and its features and limitations are discussed.