Performance Analysis of a Microstrip Antenna For 5g Applications Using Metamaterial
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Date
2024-03
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Addis Ababa University
Abstract
Because of its low profile, low cost, and ease of fabrication in the circuit boards to
construct smart cities using the internet of things (IOT), microstrip antennas have grown
to be an important component of today’s wireless communication world. The majority of
5th generation applications are incompatible with poor performance characteristics such
narrow bandwidth, low power handling capability, low gain, and huge antenna footprint.
Different design optimization technique studies have been conducted to improve the
bandwidth, gain, and size of microstrip antennas for recent generation networks, but the
performance of these antennas is still need the enhancement of bandwidth for fifth generation
applications and above. The primary goal of this research is to determine how
metamaterials affect the bandwidth performance of microstrip antennas. CST Microwave
Studio was used to design and simulate the antenna’s structure, which works in the 28 GHz
range. The Rogers RT Duroid 5880 material, which has a dielectric coefficient of 2.2, was
used as the substrate for the antenna construction.
With an increase in turns, the metamaterial-based microstrip antenna’s bandwidth expanded
for every split ring resonator segmentation. Notably, it changed quickly from single
turn to two turn, but only marginally after that. Compared to circular and triangular
split ring resonator; rectangular split ring resonaror exhibit superior bandwidth augmentation.
By etching the rectangular, circular and triangular split reing resonator, respectively,
with N=3, the bandwidth is increased by 53.06%, 46.7% and 26.89% compared to the
conventional microstrip antenna. The bandwidth is enhanced by using more split ring resonators than by using just one.The
bandwidth is increased by 101.81% when utilizing 2x2 split ring resonator elements compared
to a conventional microstrip antenna without a split ring resonator.
The radiation efficiencies of conventional microstrip antennas, CSRR-based microstrip
antennas, rectangular split ring resonator-based microstrip antennas, triangular split ring
resonator-based microstrip antennas, and pentagonal split ring resonator-based microstrip
antennas are 86 %, 87.9%, 85.3%, 80.3 % and 92.4 %, respectively.
Description
Keywords
CST MWS, 5G, Mmwave, High gain, Microstrip antenna array, SRR.