International Journal of Computer Science & Network Security

International Journal of Computer Science & Network Security (국제컴퓨터통신보호논문지학회)
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Dual-Band Fractal Antenna with Bandwidth Improvement for Wireless Applications

  • Nsir, Chiraz Ben (Dept. of Physics, Microwave Electronics Research Laboratory, Faculty of Sciences of Tunis, University of Tunis El Manar) ;
  • Boussetta, Chokri (Dept. of Physics, Microwave Electronics Research Laboratory, Faculty of Sciences of Tunis, University of Tunis El Manar) ;
  • Ribero, Jean-Marc (Dept. of Physics, Microwave Electronics Research Laboratory, Faculty of Sciences of Tunis, University of Tunis El Manar) ;
  • Gharsallah, Ali (Dept. of Physics, Microwave Electronics Research Laboratory, Faculty of Sciences of Tunis, University of Tunis El Manar)
  • Received : 2021.12.05
  • Published : 2021.12.30
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Abstract

In this paper, a dual-band Koch Snowflake antenna is proposed for wireless communication systems. Fractal geometry, CPW-feed and stepped ground planes are used to improve the impedance bandwidth. By properly introducing a hexagonal split-ring slot to radiating element, a lower frequency band is generated. The proposed structure is fabricated and tested. Experiment results exhibit dual-band of 0.73-0.98 GHZ and 1.6-3.1 GHz which makes this antenna suitable candidate for GSM900, GSM1800, UTMS2100, Wi-Fi 2400 and LTE2600 bands. In addition, a good radiation pattern, a satisfactory peak gain and a radiation efficiency, which reaches 95%, are achieved.

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References

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