The influence examination of dielectric parameters on bandwidth in multilayer aperture-coupled microstrip antennas with utilization the FDTD method.

The object of this article is usage of the FTDT method to analysis of planar antennas. The matter of Yeepsilas cell as a basic element of characteristic of filed in FTDT method and well as Yeepsilas algorithm are presented. The question of source modeling and stimulation of antenna, boundary conditions and method of analysis of planar antennas structure are also discussed. Some results of usage of the method have also been presented, as a confirmation of accuracy and usefulness for analysis of planar antennas. Aperture coupled microstrip antenna represents very broad bandwidth, lightweight, rigid construction. This type antenna has much better parameters like different type of microstrip antennas.