A Reconfigurable Multi-Band Notched Semi-Circle Engraved UWB Antenna for Wireless Applications

Articles in Press

Document Type : Article

Authors

Department of ECE, Malaviya National Institute of Technology, Jaipur, India-302017

Abstract

This work presents a small reconfigurable UWB (Ultra-Wide-Band) antenna with quad-band notches that may be used for multi-notching bands and anti-interference. It consists of a semi-circle engraved stepped-cut monopole antenna with two bevels. The slotted ground is also provided with two bevels to get enhanced bandwidth, from 3.1 to 11.67 GHz (116%). The two bevels also aid in achieving impedance matching, particularly over 9.9 GHz. To get notch characteristics covering the 5G band in 3.40-3.70 GHz (n78) and 4.84-5.70 GHz (n46), the patch is provided with L-shaped and Ladder-shaped stubs of quarter wavelength. A band-notch function is obtained at 3.88-4.32 GHz (n77, C-band), 7.10-7.61 GHz (X-band satellite downlink), and 8.04-8.68 GHz (ITU-8 GHz) by incorporating a half wavelength C-shaped slot, an I-shaped stub on the patch, and two RSRRs close to microstrip feed-line. The suggested antenna has eight PIN diodes that regulate several operating modes, allowing it to accomplish single/double/triple/quadruple band-notch characteristics. The size of the patch is 0.25λ x 0.37λ mm2 and printed on Rogers RT/duroid-5880 substrate. The simulated, measured, and equivalent circuit results match well with each other. It offers a stable gain and acceptable radiation pattern throughout the UWB band except for notch bands.

Keywords

Main Subjects

Scientia Iranica

Articles in Press, Accepted Manuscript
Available Online from 23 June 2024

Files

History

  • Receive Date: 07 December 2023
  • Revise Date: 10 April 2024
  • Accept Date: 22 June 2024

Share

How to cite

Statistics