Title: A compact CPW-fed wideband antenna with circular fractal elements for multiband operations

Authors: Dileepan Dhanasekaran; Natarajan Somasundaram; Rajkumar Rangasamy

Addresses: Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamilnadu, 600062, India ' Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamilnadu, 600062, India ' Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamilnadu, 600062, India

Abstract: In this article, a compact flower-shaped CPW-fed antenna is designed for a multiband application. The proposed antenna is created by adding circular fractal elements to edges of the octagon and a slot is created with a similar structure of smaller dimension which is responsible for multiband resonance. The antenna has a compact size of 25 mm × 25 mm, and it exhibits four resonance frequency bands at 2.82 to 6.43 GHz, 7.36 to 8.52 GHz, 11.21 to 12.2 GHz, and 14.05 to 15.83 GHz, respectively. Various antenna characteristics parameters like return loss, VSWR, impedance, radiation pattern, current distribution, substrate material properties are discussed. Antenna design can be used for different applications such as WiMAX (IEEE 802.16), WLAN (IEEE 802.11b, 802.11a/g), INSAT, fixed satellite, ITU band, X-band satellite communication, TV broadcasting, BSS, FSS, and Ku-band.

Keywords: fractal; multiband; WLAN; ITU.

DOI: 10.1504/IJESMS.2021.115528

International Journal of Engineering Systems Modelling and Simulation, 2021 Vol.12 No.2/3, pp.120 - 126

Received: 04 Jul 2020
Accepted: 13 Oct 2020

Published online: 28 May 2021 *

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