Electromagnetic–thermal cosimulation of large antenna arrays is performed by using a supercomputing-based parallel domain decomposition method. In this letter, frequency-domain electromagnetic and thermal fields are solved self-consistently and then coupled via Joule heat and temperature-dependent material properties. The developed cosimulation solver is first validated with the commercial software COMSOL Multiphysics. Then, the parallel performance of our in-house developed code is examined in terms of scalability and efficiency. Finally, the temperature distributions over large-scale antenna arrays are obtained by our proposed solver in a highly efficient manner.

中文翻译：

---

大型天线阵列的大规模并行电磁-热协同仿真

大型天线阵列的电磁-热协同仿真是通过使用基于超级计算的并行域分解方法进行的。在这封信中，频域电磁场和热场自洽求解，然后通过焦耳热和与温度相关的材料属性进行耦合。开发的协同仿真求解器首先通过商业软件 COMSOL Multiphysics 进行验证。然后，在可扩展性和效率方面检查我们内部开发的代码的并行性能。最后，我们提出的求解器以高效的方式获得了大规模天线阵列上的温度分布。