Dual circle slotted material antenna for WLAN/Bluetooth/ hiper LAN/ application

Abstract

A circle cut fabric antenna has been simulated for the frequency range 1.798 GHz to 5.68 GHz with the bandwidth of 103.82%. This flexible material is having relative permittivity of 1.7. The return loss of anticipated antenna is-33.2 dB at 4 GHz resonant frequency. In the proposed antenna, the ground is defected having rectangular shape. The directivity of planned antenna is 4.686 dBi at 4 GHz resonant frequency Simulated results like return loss Vs Frequency graph, 3-D pattern and polar plot are presented.