The challenge of tokamak auxiliary heating method ICRH is to couple large amount of power through the plasma boundary, where an evanescence layer has to be crossed, without exceeding the voltage standoff at the antenna. Travelling Wave Array antenna has been proposed for ICRH of future fusion reactor such as DEMO in view to decrease the antenna power density. However, so far the voltage standoff of a TWA antenna in the ICRH frequency range (30–60 MHz) has never been demonstrated. A TWA mock-up has been designed and will be tested in the CEA/IRFM testbed TITAN to assess its compatibility to RF high power operation. In this paper, the main characteristics of the TWA mock-up are reported in detail. In addition, some near-field RF analyses are presented, containing reflection characteristics, port voltage, electric field and k_// spectrum. Meanwhile, the structural evaluation of the antenna during its lifting process is carried out to check with safety requirements. The assembly strategy of the whole structure is also explained elaborately to ensure the fluency and correct integration of the TWA mock-up. Finally, the RF assessment of antenna straps critical dimensions is briefly described.

托卡马克辅助加热方法ICRH的挑战是通过等离子体边界耦合大量功率，在该边界处必须越过渐逝层，而又不超过天线的电压间隔。为了降低天线功率密度，已经为诸如DEMO之类的未来聚变反应堆的ICRH提出了行波阵列天线。但是，到目前为止，尚未证明TRH天线在ICRH频率范围（30–60 MHz）中的电压间隔。设计了一个TWA样机，并将在CEA / IRFM测试台TITAN中进行测试，以评估其与RF高功率操作的兼容性。在本文中，详细介绍了TWA模型的主要特征。此外，还介绍了一些近场射频分析，其中包括反射特性，端口电压，电场和k_//频谱。同时，对天线在提升过程中的结构进行了评估，以确保符合安全要求。还详细说明了整个结构的组装策略，以确保TWA模型的流畅性和正确集成。最后，简要介绍了天线带关键尺寸的RF评估。