A new electromagnetic code for ICRF antenna in EAST

TL;DR

This paper introduces a new electromagnetic code based on the method of moments for designing ICRF antennas in fusion experiments, validated against commercial software and capable of analyzing power spectra with different phases.

Contribution

The paper presents a novel electromagnetic code using MOM for ICRF antenna design, offering validated predictions of scattering parameters and surface currents.

Findings

Good agreement with CST simulations for EAST ICRF antenna

The code accurately computes scattering parameters and surface currents

Power spectra vary with toroidal phases, aiding antenna optimization

Abstract

The demand for an effective tool to help in the design of ion cyclotron radio frequency (ICRF) antenna system for fusion experiment has driven the development of predictive codes. A new electromagnetic code based on the method of moments (MOM) is described in the paper. The code computes the electromagnetic field by the solution of the electric field integral equation. The structure of ICRF antennas are discretized with triangular mesh. By using the new code, the scattering parameter and the surface current are given and compared with the result by commercial code CST. Moreover, the power spectra are studied with different toroidal phases for heating and current drive. Good agreement of simulation results between the new code and CST are obtained. The code has been validated against CST for EAST ICRF antenna.