Compact Circularly Polarized Printed Slot Antenna with a Wrench Shaped Patch for UWB Application

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Authors

  • Majid SHOKRI
  • Ch. GHOBADI
  • J. NOURINA
  • Hamed SHIRZAD
  • Zh. AMIRI
  • S. ASIABAN

Keywords:

slot antenna, CPW feeding and circular polarization

Abstract

A broadband circularly polarized square slot antenna (CPSSA) is presented using a coplanar waveguide (CPW) feed-line. The antenna
occupies a volume of 25 ×25 × 0.8 mm3 and is approximately six fold smaller than the state-of-art antennas of a similar type. The antenna
comprises of a square loop shaped ground-plane with three L-shaped ground strips located at its internal corners, and a wrench shaped patch
with a semi-circular tuning stub that is connected to the feed-line. The proposed antenna is shown to provide an impedance bandwidth covering
2.92–11.42 GHz (118.5%) with VSWR ≤ 2. Its axial-ratio bandwidth (ARBW) is wider than 50% over the frequency range 5.05-8.42 GHz. The
simulated and measured results show the feasibility of the antenna for practical applications.

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Published

2019-06-03

How to Cite

SHOKRI, M., GHOBADI, C., NOURINA, J., SHIRZAD, H., AMIRI, Z., & ASIABAN, S. (2019). Compact Circularly Polarized Printed Slot Antenna with a Wrench Shaped Patch for UWB Application. International Journal of Natural and Engineering Sciences, 7(1), 57–60. Retrieved from https://ijnes.org/index.php/ijnes/article/view/128

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