Indian Journal of Public Health Research & Development
  • Year: 2018
  • Volume: 9
  • Issue: 6

Circular Slotted Reconfigurable Antenna for Wireless Medical Band and X-Band Satellite Communication Applications

1Scholars, Department of ECE, ALRC-R&D, Koneru Lakshmaiah Education Foundation, Andhra Pradesh, India

2Professor, Department of ECE, ALRC-R&D, Koneru Lakshmaiah Education Foundation, Andhra Pradesh, India

*Corresponding author: B T P Madhav E-mail: btpmadhav@kluniversity.in

Online published on 2 July, 2018.

Abstract

A frequency reconfigurable circular slotted antenna fed by coplanar waveguide feeding (CPW) is presented in this paper.

The suggested antenna is compact in size with overall dimensions of 32mmx24mm to attain multiband operation. It covers Medical wireless communication WiMAX (3.03–3.8GHz), (5.1–5.5GHz) WLAN, C-band (6.5–7.16GHz) and X-band (9.4–12.5GHz) for radio astronomy, space research and satellite applications.

Resonating characteristics are realized by loading the two stage T-shaped stepped impedance resonator (TS-TSIR) in the circular ring and cross strip on the feed line. By placing four PIN diodes at the circular slot frequency shifting is obtained.

The designed antenna shows maximum gain of 6.39dB at resonating frequency of 10.7GHz.

It shows good radiation pattern, impedance characteristics, low profile and suitable for wireless communication applications.

Keywords

TS-TSIR (two-stage T-shaped Stepped impedance resonator), CPW (coplanar waveguide), Cross strip