A CPW fed T-shaped frequency reconfigurable antenna for multi radio applications

Sulakshana Chilukuri, Keshav Dahal, Anjaneyulu Lokam, Wenbing Chen

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
1 Downloads (Pure)

Abstract

This paper deals with design, simulation and experimental analysis of a compact, Coplanar Waveguide (CPW) fed T-shaped reconfigurable antenna with frequency diversity. The antenna mainly comprises of four strips placed in T-shape fed by coplanar waveguide feed which operates at 5.8GHz. The reconfigurability in frequency is achieved by connecting four strips through three switches in main antenna structure by the use of Positive-Intrinsic-Negative (PIN) diodes. By operating the switches in a controlled manner, the antenna is able to operate at seven frequencies namely 5.82GHz, 5.46GHz, 5.26GHz, 5.15GHz, 4.69GHz, 3.93GHz, and 3.21GHz which are suitable for Wi-Fi, WiMAX, WLAN, other C-band, and S-band applications. The antenna aperture area is 35mm × 30mm and it is designed on a FR4 epoxy substrate whose dielectric constant epsilon r=4.3, thickness h=0.8mm. A parametric study has been carried to analyze the characteristics of the proposed antenna. The measured results are in good agreement with simulation results and show that the antenna exhibits good radiation behavior in the specified application bands.
Original languageEnglish
Number of pages10
JournalApplied Computational Electromagnetics Society Journal
Volume33
Issue number11
Publication statusPublished - 2018

Keywords

  • antenna gain
  • CPW feed
  • frequency diversity
  • PIN diodes
  • radiation pattern
  • reconfigurable antennas

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