Smart Antenna for Future Wireless Communication

Abstract

Long-Term Evolution (LTE) is one of the fourth generation wireless communication technologies with frequencies that vary from 400 MHz – 4 GHz. The proposed antenna array will operate at the center frequency of 3.5 GHz (LTE Band – 22). The microstrip has been selected for this application because of its compact size, narrow bandwidth, higher gain and easy fabrication. The antenna array is fabricated using FR4 epoxy substrate having dielectric constant of 4.4 and the input is given with inset feeding technique. In this paper, the rectangular patch antenna array and E-shaped patch array antenna are analyzed. E-Shaped patch is used instead of rectangular patch because of its vulnerability to interference when formed as an array. The analysis proved that the latter antenna array has better return loss, VSWR value, gain, front-to-back ratio and efficiency compared to the rectangular patch antenna array. The antennas are designed, simulated and analyzed by using ANSOFT HFSS V14.0 software.