介绍了一种特殊形状的飞行器通信天线——腰形天线。用曲线坐标系时域有限差分法(NFDTD)对该天线进行了分析，并给出了一种新诠释，所计算出的辐射特性与实测结果吻合较好。结果表明：该天线能保证飞行器在复杂机动飞行条件下通信联络的畅通，且较好地解决了喷口火焰对天线辐射特性影响的难题。

In this paper, a new type of aircraft communication antenna with special structure-waist-shaped antenna is introduced. The nonorthogonal FDTD (NFDTD) algorithm is applied to analyze the antenna and the agreement between the results by NFDTD modeling and measurements is good. Furthermore, a new illumination is presented. With this antenna, the aircraft is ensured to the continuous communication during maneuver flight and the problem of the flame interference with the radiation property is absolved.

TN820.1