Journal of
Electrical and Electronics Engineering Research

  • Abbreviation: J. Electrical Electron. Eng. Res.
  • Language: English
  • ISSN: 2141-2367
  • DOI: 10.5897/JEEER
  • Start Year: 2009
  • Published Articles: 58

Review

A novel modified hexagonal fractal antenna (HFA) with band notches for WLAN rejection

R. P. S. Kushwah
  • R. P. S. Kushwah
  • Research and Development Center, Ace Antenna India Private Limited, Hyderabad 500076, India.
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I. Acharya
  • I. Acharya
  • Research and Development Center, Ace Antenna India Private Limited, Hyderabad 500076, India.
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A. S. Chauhan
  • A. S. Chauhan
  • Research and Development Center, Ace Antenna India Private Limited, Hyderabad 500076, India.
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A. Agarwal
  • A. Agarwal
  • Research and Development Center, Ace Antenna India Private Limited, Hyderabad 500076, India.
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P. K. Singhal
  • P. K. Singhal
  • Madhav Institute of Technology and Science, Gwalior 474005, India.
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  •  Received: 16 April 2021
  •  Accepted: 02 September 2021
  •  Published: 30 September 2021

Abstract

In this paper, a hexagonal fractal antenna is proposed for wireless applications. The basic shape of the fractal antenna is a hexagon which is modified by inserting smaller hexagons along the periphery of the generator structure. The proposed antenna exhibits a bandwidth of 7.5 GHz in the frequency range of 3.3-10.8 GHz. The band notch for WLAN rejection at 5.75 GHz is obtained by etching hair-pin slot in the feed structure of the antenna. The fractional bandwidth of the antenna is 53.33 and 55.62% and the VSWR obtained at the notch frequency of 5.75 GHz is 5.2 which are highly suitable for wireless communication.

Key words: Fractal antenna, Ultra wide-band (UWB), VSWR, notch, hair-pin slot.