Frequency Reconfigurable Split Ring Antenna for LTE And WiMAX Applications

This paper presents frequency reconfigurable dual band antenna for WiMAX and LTE 2500 applications using four PIN diode switches. The is compact in size with dimensions of 30 x 0.8 mm3 designed on FR-4 dielectric substrate a partial ground plane. fabricated operates the range (2.5-2.69 GHz 3.4-3.6 GHz) respectively.  frequencies can be controlled by diodes attained gain ranging 3.34-4.46 dBi. resonating at 2.52 3.49 when are ON state 2.68 3.58 OFF state. proposed has bidirectional radiation upper bands unidirectional lower bands. split ring structured efficiency 94.12% 90.34% Antenna providing good agreement between measured (Antenna measurement setup VNA) simulated results (Ansys-HFSS).