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Ultra Wideband Spherical Self-Complementary Antenna with Capacitive and Inductive Loadings

  • Jin-young Jeong
  • Jae-Young ChungEmail author
Original Article

Abstract

A spherical ultra-wideband antenna is proposed based on a self-complementary structure. The antenna employs a loop comprising two symmetric teardrop-shaped arms conformally printed on a three-dimensional (3D) sphere. To enhance the impedance matching bandwidth, inductive and capacitive loadings are applied to the antenna by adding shorting strips at the antenna’s rear part and broadening the front part respectively. Measurement results show that the proposed antenna is capable of covering the frequency range of 0.8–8 GHz with a low reflection coefficient(S11) ≤ − 10 dB, gain > 2.8 dB, and radiation efficiency > 63%.

Keywords

Antenna Ultra-wideband Impedance matching Self- complementary Antenna 

Notes

Acknowledgements

This work was supported in part by Institute for Information and Communications Technology Promotion (IITP) Grant funded by the Korea government (MSIT) (No.2015-0-00855) and in part by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education (2018R1D1A1B07049984).

References

  1. 1.
    Mendes HA (1968) A new approach to electromagnetic field-strength measurements in shielded enclosures. Wescon Technical Papers, Los AngelesGoogle Scholar
  2. 2.
    Vogt-Ardatjew R, van de Beek S, Leferink F (2012) Wide- band antennas for reveberation chabmers. In: EMC EUROPE international symposium, Rome, pp 1–5Google Scholar
  3. 3.
    Bluetest‘s callibration antennas (2016). https://bluetest.se/products/accessory/calibration-antennas. Accessed 1 July 2017
  4. 4.
    Mushiake Y (2012) Self-complementary antennas: principle of self-complementary for constant impedance. Springer, LondonGoogle Scholar
  5. 5.
    Mushiake Y (1992) Self-complementary antennas. IEEE Antennas Propag Mag 34(6):23–29CrossRefGoogle Scholar
  6. 6.
    Cortes-Medellin G (2011) Non-planar quasi-self-complementary ultra-wideband feed antenna. IEEE Trans Antennas Propag 59(6):1935–1944MathSciNetCrossRefGoogle Scholar
  7. 7.
    Jeong J-Y, Kuem J-M, Ko D-O, Woo J-M (2015) Design of spherical loop antenna with Ultra-Wide bandwidth. In: IEEE Asia Pacific conference on wireless and mobile, Bandung, IndonesiaGoogle Scholar
  8. 8.
    Jeong J-Y, Chung J-Y, Kwon JH (2016) 0.65–7 GHz ultra-wideband spherical self-complementary antenna. IEEE Antenna Propag Soc Int Symp, OkinawaGoogle Scholar
  9. 9.
    Lule E, Babij T, Siwiak K (2005) Elliptical slot tuned Planar Teardrop Ultra Wideband Dipole Antenna. IEEE Antenna Propag Soc Int Symp 2A:471–474Google Scholar
  10. 10.
    Lin Y-T, Chen Y-T, Wang T, Lin Y-S, Lu S-S (2007) 3– 10-GHz ultra-wideband low-noise amplifier utilizing miller effect and inductive shunt-shunt feedback technique. IEEE Trans Microw Theory Tech 55(9):1832–1843CrossRefGoogle Scholar
  11. 11.
    Kim J-I, Lee B-M, Yoon Y-J (2001) Wideband printed dipole antenna for multiple wireless services. In: IEEE Radio and Wireless Conference, Waltham, MAGoogle Scholar
  12. 12.
    Yousaf J, Jung H, Kim K, Nah W (2016) Design, analysis, and equivalent circuit modeling of dual band PIFA using a stub for performance enhancement. J Electromagn Eng Sci 16(3):169–181CrossRefGoogle Scholar
  13. 13.
    Kong M, Shin G, Lee S-H, Yoon I-J (2017) Investigation of 3D printed electrically small folded spherical meander wire antenna. J Electromagn Eng Sci 17(4):228–232CrossRefGoogle Scholar

Copyright information

© The Korean Institute of Electrical Engineers 2019

Authors and Affiliations

  1. 1.Department of Electrical and Information EngineeringSeoul Nat’l University of Science and TechnologySeoulSouth Korea

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