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Effects of changing dimensions on the planar inverted-F antenna performances

With the rapid growth of the wireless mobile communication technology, the future technologies need a very small antenna with a good performance, the advantage of planar inverted-F antenna (PIFA) make them very popular in many applications requiring a low profile antenna. This letter is aimed at addressing this problem by investigating the effects of changing the dimensions of each parameter of the planar inverted-F antenna on the impedance bandwidth, resonance frequency and gain. It is shown that a PIFA with a good performance can be achieved by optimizing the dimensions of the radiating plate, the ground plane and the height of the antenna.