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access icon free DC ground compact wideband omnidirectional vertically polarised slot loop antenna for 4G long-term evolution applications

  • Author(s): Zhanghua Cai 1 ; Yihong Qi 1, 2 ; Zibin Weng 3 ; Wei Yu 2 ; Fuhai Li 1 ; Jun Fan 4
    • View affiliations
  • Source: Volume 12, Issue 7, 13 June 2018, p. 1087 – 1092
    DOI:  10.1049/iet-map.2017.0712 , Print ISSN 1751-8725, Online ISSN 1751-8733
© The Institution of Engineering and Technology
Received 25/07/2017, Accepted 05/01/2018, Revised 23/12/2017, Published 08/01/2018

A compact, wideband, omnidirectional, vertically polarised antenna without electrostatic discharge problems is proposed in this study for 4G long-term evolution applications. The proposed antenna is composed of three identical basic radiators separated by an angle of 120°. The basic radiator is based on a slot loop which is a wideband and DC ground structure. By bending the basic radiators, the antenna achieves better impedance matching and lower gain variation in the horizontal plane in a compact size. The proposed antenna reaches a fractional bandwidth of 45.5% for the voltage standing wave ratio (VSWR) <1.5, a peak gain from 2.4 to 3.8 dBi with a gain ripple around 2 dB in the omnidirectional plane. It operates from 1700 to 2700 MHz, covering most 4G long-term evolution frequency bands. Both simulation and measurement of a prototype is done in this study to verify the antenna performance.

Inspec keywords: 4G mobile communication; Long Term Evolution; impedance matching; loop antennas; broadband antennas; slot antennas; omnidirectional antennas; electromagnetic wave polarisation

Other keywords: VSWR; omnidirectional vertically polarised slot loop antenna; gain variation; identical basic radiators; electrostatic discharge problems; frequency 1700 MHz to 2700 MHz; DC ground structure; gain 2 dB; wideband structure; impedance matching; DC ground compact wideband antenna; 4G long-term evolution applications

Subjects: Single antennas; Mobile radio systems

References

    1. 1)
      • 4. Gonçalves, R., Carvalho, N.B., Pinho, P.: ‘Small antenna design for very compact devices and wearables’, IET Microw. Antennas Propag., 2017, 11, (6), pp. 874–879.
    2. 2)
      • 1. Fujita, K.: ‘MNL-FDTD/SPICE method for fast analysis of short-gap ESD in complex systems’, IEEE Trans. Electromagn. Compat., 2016, 58, (3), pp. 709–720.
    3. 3)
      • 2. Ungru, T., Wilkening, W., Negra, R.: ‘Modeling of transients on IC supply rails caused by ESD during operation’, IEEE Trans. Electromagn. Compat., 2016, 59, (3), pp. 910–918.
    4. 4)
      • 11. Guo, C.R., Lu, W.J., Zhang, Z.S., et al: ‘Wideband non-traveling-wave triple-mode slotline antenna’, IET Microw. Antennas Propag., 2017, 11, (6), pp. 886–891.
    5. 5)
      • 19. Zhang, Z.Y., Yang, X.D., Zuo, S.L., et al: ‘Wideband omnidirectional printed dipole antenna with dumbbell-shaped open sleeve for wireless communication applications’, IET Microw. Antennas Propag., 2014, 8, (15), pp. 1299–1304.
    6. 6)
      • 5. Zhang, J., Hsiao, F.R., Wong, K.L.: ‘Omnidirectional planar folded dipole antenna’, IEEE Trans. Antennas Propag., 2004, 52, (7), pp. 1898–1902.
    7. 7)
      • 20. Yu, Y., Xiong, J., Wang, R.: ‘A wideband omnidirectional antenna array with low gain variation’, IEEE Antennas Wirel. Propag. Lett., 2016, 15, pp. 386–389.
    8. 8)
      • 17. Fei, P., Qi, Y., Jiao, Y.C.: ‘Design of a wideband dual-element slot loop antenna array with adjustable back-reflector’, IEEE Antennas Wirel. Propag. Lett., 2012, 11, (2), pp. 1014–1017.
    9. 9)
      • 21. Wang, H., He, S., Yu, Y.: ‘A wideband omnidirectional antenna array’. IEEE Int. Symp. on Antennas, Propagation and EM Theory, 2017, pp. 112–114.
    10. 10)
      • 6. Abdulraheem, Y.I., Oguntala, G.A., Abdullah, A.S., et al: ‘Design of frequency-reconfigurable multiband compact antenna using two PIN diodes for WLAN/WiMAX applications’, IET Microw. Antennas Propag., 2017, 11, (8), pp. 1098–1105.
    11. 11)
      • 12. Oraizi, H., Shahmirzadi, N.V.: ‘Frequency- and time-domain analysis of a novel UWB reconfigurable microstrip slot antenna with switchable notched bands’, IET Microw. Antennas Propag., 2017, 11, (8), pp. 1127–1132.
    12. 12)
      • 10. Chen, X., Huang, K., Xu, X. B.: ‘A novel planar slot array antenna with omnidirectional pattern’, IEEE Trans. Antennas Propag., 2011, 59, (12), pp. 4853–4857.
    13. 13)
      • 9. Ghafari, M., Adjrad, M., Ghavam, M.: ‘A novel UWB discone antenna for biomedical applications’. IEEE Computer Society European Modelling Symp., 2013, pp. 127–131.
    14. 14)
      • 7. Fan, Y., Liu, X.Y., Liu, B.Y., et al: ‘A broadband dual-polarized omnidirectional antenna based on orthogonal dipoles’, IEEE Antennas Wirel. Propag. Lett., 2015, 15, pp. 1–1.
    15. 15)
      • 14. Toktas, A.: ‘G-shaped band-notched ultra-wideband MIMO antenna system for mobile terminals’, IET Microw. Antennas Propag., 2017, 11, (5), pp. 718–725.
    16. 16)
      • 18. Gao, X., Qi, Y., Jiao, Y.C.: ‘Design of multiplate back-reflector for a wideband slot antenna’, IEEE Antennas Wirel. Propag. Lett., 2013, 12, pp. 773–776.
    17. 17)
      • 13. Koziel, S., Bekasiewicz, A., Cheng, Q.S.: ‘Conceptual design and automated optimisation of a novel compact UWB MIMO slot antenna’, IET Microw. Antennas Propag., 2017, 11, (8), pp. 1162–1168.
    18. 18)
      • 8. He, S., Chang, L., Chen, Z.Z.: ‘Design of a compact biconical antenna loaded with magnetic dipoles’, IEEE Antennas Wirel. Propag. Lett., 2017, 16, pp. 840–843.
    19. 19)
      • 3. Li, Z., Maheshwari, P., Pommerenke, D.J.: ‘Measurement methodology for field-coupled soft errors induced by electrostatic discharge’, IEEE Trans. Electromagn. Compat., 2016, 58, (3), pp. 701–708.
    20. 20)
      • 15. Huang, H., Liu, Y., Gong, S.: ‘Broadband dual-polarized omnidirectional antenna for 2G/3G/LTE/WiFi applications’, IEEE Antennas Wirel. Propag. Lett., 2016, 15, pp. 576–579.
    21. 21)
      • 16. Zhou, L., Jiao, Y., Qi, Y., et al: ‘Wideband ceiling-mount omnidirectional antenna for indoor distributed antenna systems’, IEEE Antennas Wirel. Propag. Lett., 2014, 13, (4), pp. 836–839.
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