仿真矩形贴片天线遇到的问题

the first mode at inhomogeneous port 1 is hybrid 。this could lead to an inaccurate energy balance。please check your structure。
CST仿真微带矩形贴片天线时遇到这个问题，是怎么回事？怎么改正呢？

Check if your structure is overlapped near port area.