FDTD analysis on patch array antennas for mobile handset - effects of geometry of array elements and ground plate

摘要

The characteristics of adaptive array antennas are strongly affected not only by the beam control algorithms, but also by the element configuration, the size of the ground plate. Four kinds of patch antennas are studied by using the FDTD method. The scanning characteristics of patterns for several arrays are investigated in details in order to determine the suitable configuration used for the array antenna of mobile handset. Furthermore, the XPD in the scanning plane and mutual coupling between elements are calculated. Finally, the effect of the ground size on the radiation pattern of array antenna is investigated in order to determine the optimum size of the ground plate for the beam control of the arrays.