Abstract:
Smart Antennas are important to provide mobility support for many enhanced 5G and
future wireless applications and services, such as energy harvesting, virtual reality, Voice over 5G
(Vo5G), connected vehicles, Machine-to-Machine Communication (M2M), and Internet of Things (IoT).
Smart antenna technology enables us to reduce interference and multipath problems and increase the
quality in communication signals. This paper presents a number of nonlinear configurations of dipole
arrays for forming a single beam in any desired direction. We propose three, four, six, and eight-element
array structures to perform this single beam-steering functionality. The proposed array configurations
with multiple axes of symmetry (in the azimuthal plane) decrease the computational repetitions in
optimizing respective weight factors for beam-steering. The optimized weight factors are obtained
through the Least Mean Square (LMS) method. MATLABTM is used to calculate optimized weight
factors as well as to determine the resulting radiation patterns. Since antennas are bidirectional
elements, beamforming in one direction means that the antenna will also have high receiving gain
in that direction. Performances of differently configured models are compared in terms of their
directivity, sidelobe reduction, and computational complexities for beam-steering.
