Design of a Wideband CPW Fed Fractal Antenna for Satellite Communication

Authors

  • Varnikha Nanthagopal Department of Electronics and Communication Engineering, Sri Venkateswara College of Engineering, Sriperambudur, 602105, India
  • Jothilakshmi Paramasivam Department of Electronics and Communication Engineering, Sri Venkateswara College of Engineering, Sriperambudur, 602105, India

DOI:

https://doi.org/10.13052/2022.ACES.J.370905

Keywords:

CPW fed antenna, fractal antenna, reflector, satellite application, T’ Square fractal, Wideband

Abstract

A novel ‘T’ square wideband fractal antenna is proposed for satellite communication. The Wideband is achieved through the ‘T’ square fractal design and CPW feed. At first, a conventional square-shaped patch antenna is designed. Then the square-shaped patch is replaced by a Type-I fractal to achieve wideband. Finally, a Type-II fractal with an L-Shaped boundary is used to enhance the bandwidth to a greater extent. The gain of the proposed antenna ranges from 4 dB to 6.3 dB for the entire frequency range of 6.2 GHz to 14 GHz. The radiation efficiency of the antenna is noticed up to 84%. The fractal antenna resonates well throughout the entire frequency range with a VSWR of less than 2. The antenna having such a wide band characteristic can be found suitable for a wide range of applications like earth exploration satellites, fixed satellites, radiolocation, maritime radio navigation, and aeronautical radio navigation. A metal reflector is also introduced at the bottom of the antenna to produce a unidirectional radiation pattern. This increases the gain up to 9.8 dBi and a front-to-back ratio is noticed above 20 dB. The design is fabricated and the measurement results are found to be in good agreement with the simulation results.

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Author Biographies

Varnikha Nanthagopal, Department of Electronics and Communication Engineering, Sri Venkateswara College of Engineering, Sriperambudur, 602105, India

Varnikha Nanthagopal received her BE from Satyabhama University in 2013, and ME from Anna University in 2016. She is pursuing a Ph.D. from Anna University, Chennai, India. Her research articles are published in many International conferences and journals. Her research interests include fractal antennas, RF, and microwave and communication.

Jothilakshmi Paramasivam, Department of Electronics and Communication Engineering, Sri Venkateswara College of Engineering, Sriperambudur, 602105, India

P. Jothilakshmi completed her B.E. degree in Electronics and Communication Engineering from the University of Madras, in 1996 and her M.E. degree in Communication Systems from Madurai Kamaraj University, in 2000. She completed her Ph.D. Degree from Anna University, Chennai, India. She is serving as a lecturer from 1996 onwards. She is currently serving as a Professor in ECE at Sri Venkateswara College of Engineering, Chennai, India. She is an active fellow in professional societies ISTE, IETE, and IAENG. She led several numbers of B.E., M.E., and Ph.D.-level projects. Shehas published several SCI indexed; Scopus indexed international journal papers. She presented and published papers at international and national conferences. Her research area is Microwave antenna design and wireless communication.

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Published

2023-02-10

How to Cite

[1]
V. . Nanthagopal and J. . Paramasivam, “Design of a Wideband CPW Fed Fractal Antenna for Satellite Communication”, ACES Journal, vol. 37, no. 09, pp. 959–969, Feb. 2023.

Issue

2022: Vol 37 Iss 9

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Articles

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