Triangular Shaped Frequency Reconfigurable Monopole Antenna with Defected Ground Switching

摘要

A triangular shaped frequency reconfigurable antenna with DGS is proposed in this work. The defect in the ground plane is fine tuned with conducting switches to get the frequency switchable characteristics in the operating band. Multiple switches are arranged in the ground plane and exploring the defected ground switching in the proposed design. The switches in the ground plane will enable the change of current path, thereby changing the resonant frequencies. A maximum tunable frequency ratio of 5% achieved in this design and the corresponding reflection loss and radiation characteristics are presented in this work.