Energy Efficient Switched Parasitic Array Antenna for 5G Networks

Abstract

In order to meet the ever-increasing demand of high data rate and improving signal to noise
ratio in the upcoming 5G, we present the mathematical modeling, design, and simulation of
Electronically Steerable Parasitic Array Radiator (ESPAR). The proposed antenna consists
of an active central element which is surrounded by six parasitic elements. The antenna is
operated at a frequency of 2.45GHz and is capable of 360-degree beam steering in the step of
60 degrees each. Around 6dB gain was achieved. The designed antenna is highly efficient in
terms of size and cost since there is only one active element, therefore, only one feed is
required. The Antenna beam is steered by controlling parasitic elements. Due to higher gain
and improved bandwidth, the designed antenna is more suited for multiple-input-multipleoutput (MIMO) applications. The MIMO technique will reduce propagation losses and
enhance system efficiency. Similarly, diversity gain can also be achieved by using this kind of
smart antennas.