Design of Wideband Circular-Slot Antenna for Harvesting RF Energy Articles uri icon

authors

  • Muhammad, Surajo
  • Smida, Amor
  • Waly, Mohamed Ibrahim
  • Mallat, Nazih Khaddaj
  • IQBAL, AMJAD
  • Khan, Sadeque Reza
  • ALIBAKHSHIKENARI, MOHAMMAD

publication date

  • July 2022

start page

  • 1

end page

  • 9

volume

  • 2022

International Standard Serial Number (ISSN)

  • 1687-5869

Electronic International Standard Serial Number (EISSN)

  • 1687-5877

abstract

  • e design of a wideband circular-slot antenna for RF signal harvesting is reported in this work. e proposed design frequency
    range accommodates the leading contributors to the available RF signals accessible by the RFEH node. ese widely utilized
    frequency bands comprise GSM1800, UMTS2100, Wi-Fi2.450, and LTE2600. e antenna geometry comprises circular-ring
    radiating component lled with two orbital circular and rectangular slots. At the bottom plane, a pair of rectangular and
    semirectangular-circle slits are integrated. e antenna presented is designed on a double layer of 1.6 mm high FR-4 substrate. e
    source antenna achieved a simulated and measured impedance bandwidth (BW) of 1.510 and 1.590 GHz, amounting to 68% and
    73% fractional BW (FBW), covering -10 dB reection coecient (|S11|) between 1.640 to 3.150 GHz and 1.550 to 3.140 GHz, in
    that order. e wideband circular-slot source antenna realized a maximum measured gain of 1.88, 2.13, 2.81, 3.22, and 4.32 dBi for
    1.800, 2.100, 2.450, 2.650, and 3.20 GHz, respectively. e proposed design dimension on the printed board is 0.61 λg × 0.70 λg.
    e improved antenna gain is obtained from a circular parasitic patch coupled to the defected ground structure (DGS) for better
    RF energy harvesting in an ambient environment.

subjects

  • Telecommunications