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CPW-fed circular-shaped fractal antenna with three iterations for UWB applications

Published online by Cambridge University Press:  12 October 2015

Sarthak Singhal ,
Ankit Pandey  and
Amit Kumar Singh
Sarthak Singhal*
Affiliation:
Department of Electronics Engineering, Indian Institute of Technology (BHU), Varanasi, India. Phone: +917376157421
Ankit Pandey
Affiliation:
Department of Electronics Engineering, Indian Institute of Technology (BHU), Varanasi, India. Phone: +917376157421
Amit Kumar Singh
Affiliation:
Department of Electronics Engineering, Indian Institute of Technology (BHU), Varanasi, India. Phone: +917376157421
*
Corresponding author: S. Singhal Email: ssinghal.rs.ece@iitbhu.ac.in
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Abstract

A coplanar waveguide (CPW)-fed circular-shaped fractal antenna with third iterative orthogonal elliptical slot for ultra-wideband applications is presented. The bandwidth is enhanced by using successive iterations of radiating patch, CPW feedline, and tapered ground plane. An impedance bandwidth of 2.9–20.6 GHz is achieved. The designed antenna has omnidirectional radiation patterns along with average peak realized gain of 3.5 dB over the entire frequency range of operation. A good agreement is observed between the simulated and experimental results. This antenna structure has the advantages of miniaturized size and wide bandwidth in comparison to previously reported fractal structures.

Keywords

Antennas and Propagation for Wireless SystemsWireless Systems and Signal Processing (SDR, MIMO, UWB, etc.)
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 2 , March 2017 , pp. 373 - 379
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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