A super wideband circular-shaped fractal antenna loaded with concentric hexagonal slots

  • Authors

    • Srinivasarao Alluri
    • Nakkeeran Rangaswamy
    2018-08-24
    https://doi.org/10.14419/ijet.v7i3.29.18797
  • Circular Radiating Patch, Fractal Antenna, Hexagonal Slot, Microstrip Feedline, SWB Applications, Tapered Feeding.

  • This article presents a super wideband (SWB) circular-shaped fourth iterative fractal antenna loaded with concentric hexagonal slots. A tapered microstrip feed and a partial ground plane is used. It has a total size of 40 × 27 × 1.6 mm3. Numerical results of the antenna show that it provides a bandwidth from 1.43 GHz to more than 40 GHz (percentage bandwidth greater than 186%) with a bandwidth ratio of approximately greater than 28:1 for S11 < -10 dB. A prototype of the proposed antenna has been fabricated and its performances are measured up to 15 GHz. A good agreement is achieved between the numerical and experimental reflection coefficient, VSWR and input impedance. Measured radiation patterns at different frequencies and simulated peak gain are presented and discussed. It has the advantages of super wide bandwidth and compact size. The developed antenna is suitable for various wireless communications such as GPS, GSM, UMTS, ISM and UWB.

     

     

  • References

    1. [1] Chen KR, Sim CYD & Row JS (2011), “A compact monopole antenna for super wideband applications,†IEEE Antennas and Wireless Propagation Letters, Vol. 10, pp. 488-491.

      [2] Tran D, Aurby P, Szilagyi A, Lager IE, Yarovyi O & Lightart LP, “On the design of super wideband antenna,†in Ultra wideband, InTech Publication, (2011), pp. 399-426.

      [3] Dorostkar MA, Islam MT & Azim R (2013), “Design of a novel super wide band circular-hexagonal fractal antenna,†Progress In Electromagnetics Research, Vol. 139, pp. 229-245.

      [4] Liang XL, Zhong SS & Wang W (2006), “Elliptical planar monopole antenna with extremely wide bandwidth,†Electronics Letters, Vol. 42, No. 8, pp. 441-442.

      [5] Barbarino S & Consoli F (2010), “Study on super-wideband planar asymmetrical dipole antenna of circular shape,†IEEE Transactions on Antennas and Propagation, Vol. 58, No. 12, pp. 4074-4078.

      [6] Gorai A, Karmakar A, Pal M & Ghatak R (2013), “A CPW-fed propeller shaped monopole antenna with super wideband charecteristics,†Progress In Electromagnetics Research C, Vol. 45, pp. 125-135.

      [7] Azari A (2011), “A new super wideband fractal microstrip antenna,†IEEE Transactions on Antennas and Propagation, Vol. 59, No. 5, pp. 1724-1727.

      [8] Hakimi S, Rahim SKA, Abedian M, Noghabaei SM & Khalily M (2014), “CPW-fed transparent antenna for extended ultra wideband applications,†IEEE Antennas and Wireless Propagation Letters, Vol. 13, pp. 1251-1254.

      [9] Yeo J & Lee JI (2014), “Coupled-sectoral-loop antenna with circular sectors for super wideband applications,†Microwave and Optical Technology Letters, Vol. 56, No. 7, pp. 1683-1689.

      [10] Farooq AT & Aqeel HN (2015), “A compact hut-shaped printed antenna for super-wideband applications,†Microwave and Optical Technology Letters, Vol. 57, No. 11, pp. 2645-2649.

      [11] Singhal S & Singh AK (2016), “CPW-fed hexagonal sierpinski super wideband fractal antenna,†IET Microwaves, Antennas and Propagation, Vol. 10, No. 15, pp. 1701-1707.

      [12] Singhal S & Singh AK (2016), “CPW-fed Phi-shaped monopole antenna for super-wideband applications,†Progress In Electromagnetics Research C, Vol. 64, pp. 105-116.

      [13] Okas P, Sharma A & Gangwar RK (2017), “Circular base loaded modified rectangular monopole radiator for super wideband applications,†Microwave and Optical Technology Letters, Vol. 59, pp. 2421-2428.

      [14] Okas P, Sharma A & Gangwar RK (2018), “Super-wideband CPW fed modified square monopole antenna with stabilized radiation charecteristics,†Microwave and Optical Technology Letters, Vol. 60, pp. 568-575.

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  • How to Cite

    Alluri, S., & Rangaswamy, N. (2018). A super wideband circular-shaped fractal antenna loaded with concentric hexagonal slots. International Journal of Engineering & Technology, 7(3.29), 211-213. https://doi.org/10.14419/ijet.v7i3.29.18797