A 4x1 Circular Patch Antenna Array with Improved Radiation Performance for 5G Applications

A patch antenna shows only a minimal range of gain and impedance bandwidth. This can be further improved by using an antenna array. The patch antenna arrays can be used to enhance the properties such as gain, bandwidth, return loss, etc. A
$4\mathrm{x}1$
circular microstrip patch antenna array with an inset feed line operating in ka band is presented for 5G applications. The bandwidth is enhanced by applying partial ground technique, and gain is elevated by incorporating parasitic patches. The radiating patches are in a non-aligned configuration, which gives symmetry to the pattern formed. The sidelobe levels are alleviated by using strip fences between antenna elements in the array, thereby increasing the front-to-back ratio. Beam steerable antennas have become an essential part of telecommunication. In beam steerable antennas, the radio link is not disrupted if the line of sight is not maintained. Here the beam is steered by changing the phases between the array elements. The simulated results of this work proclaim the proposed work a better option for future
$5\mathrm{G}$
applications.