PIFA WITH OPTIMIZED GROUND SHAPE AND CAPACITIVE FEEDING FOR BROADBAND APPLICATIONS

摘要

In this work, genetic algorithm is used to optimize the ground plane shape of planar inverted F antenna on FR-4 substrate designed for broadband applications. Novel optimized antennas were presented. A relative bandwidth about 88% was obtained with the optimized antenna. With this procedure the total bandwidth increased more than 2.5 times relatively the total bandwidth of the not optimized antenna. However, the dimensions and the cost did not increase.