E - shaped Patch Antenna Using L - probe for 4 G Communication Systems

To satisfy requirements of 4G communication systems, an E-shaped microstrip antenna with L-probe is presented. In this design, E-shaped patch is introduced to expand the bandwidth by changing the current distribution, L-probe is introduced to increase the bandwidth by counteracting the inductance of the probe. The electrical property of the antenna is analysised using commercially available Finite Element Software, High Frequency Structure Simulator (HFSS), of Ansoft. Results show that the antenna proposed in this paper has an impedance bandwidth (S11<-10dB) of 33.2 %, which can address the need of bandwidth for 4G communication systems. In addition, the effects on the impedance bandwidth made by the parameters are concluded. Copyright © 2014 IFSA Publishing, S. L.