Dual band electromagnetic band gap structure with wideband antenna

摘要

This paper describes the design, simulation and measurement of a slotted electromagnetic band gap (EBG) structure incorporated with wideband antenna. The design is carried out on FR4 substrate of dielectric constant, εr=4.6 and thickness, h=1.6mm. The result from the simulation and measurement of electromagnetic band gap (EBG) structure is presented in term of transmission coefficient S21 and in term of reflection coefficient, S11(dB). Two bands of frequencies have been achieved in this design. The wideband monopole antenna is designed using circular patch with half ground plane. The EBG structure is incorporated with the wideband antenna to suppress the wave from propagating through the transmission line. It shows that two band of frequencies has been suppressed when incorporated with the EBG structure.