Abstract
In this paper, a design of reconfigurable printed antenna is presented. The antenna consists of square patch excited by a coaxial probe and adopted to operate at the frequency of 2.45GHz. By placing a variable capacitor in the antenna, it allows to reduce the antenna size with a wide range starting from 2.45GHz to 1.65GHz. We study the positions of the chip capacitor on the resonance frequency of the patch antenna.