Vol. 119

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2022-03-30

Design and Characteristics Mode Analysis of a Cantor Set Fractal Monopole Antenna for IoT Applications

By Geeta B. Kalkhambkar, Rajashri Khanai, and Pradeep Chindhi
Progress In Electromagnetics Research C, Vol. 119, 161-175, 2022
doi:10.2528/PIERC22012106

Abstract

A four-level iterated cantor set fractal antenna for Internet of Things (IoT) applications is proposed in this work. The proposed antenna operates at 2.4 GHz and for the range of 5 GHz to 8.5 GHz. In the 5 GHz to 8.5 GHz range it covers a Wi-Fi802.11 Standard (4.9 GHz, 5 GHz, 5.9 GHz, 6 GHz), 6.56 GHz, and at the lower band it covers WiMax (2.5-2.7 GHz). The proposed antenna offers a gain up to 4 dBi with an efficiency up to 90%. The designed antenna is experimented with a partial ground plane, with and without notch to perceive its effects on S11 parameters. The antenna and its feed location is optimized for improved performance. The proposed antenna is analysed using the theory of characteristics mode analysis. The antenna is fabricated on a low-cost FR4 substrate with a dielectric constant of 4.4 anda substrate height of 1.6 mm. The antenna performance in terms of S11, VSWR, and Gain is validated by measuring the performance in an anechoic chamber with Agilent N5247A Vector Network Analyser (VNA). The antenna is designed and optimized in mentor graphics software and CST Studio. The results show good agreement between the simulated and measured performances of the antenna. The optimized geometry of the antenna is compact having overall dimensions of 32 mm×22 mm×1.6 mm and suitable for short-range IoT applications.

Citation


Geeta B. Kalkhambkar, Rajashri Khanai, and Pradeep Chindhi, "Design and Characteristics Mode Analysis of a Cantor Set Fractal Monopole Antenna for IoT Applications," Progress In Electromagnetics Research C, Vol. 119, 161-175, 2022.
doi:10.2528/PIERC22012106
http://www.jpier.org/PIERC/pier.php?paper=22012106

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