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Journal of Electrical and Computer Engineering
Volume 2016 (2016), Article ID 6546481, 10 pages
Research Article

Design of CPW-Fed Antenna with Defected Substrate for Wideband Applications

1Electronics and Communication Engineering, IFTM University, Moradabad, India
2Electronics and Communication Engineering, MIT, Moradabad, India

Received 9 July 2016; Revised 2 November 2016; Accepted 23 November 2016

Academic Editor: John N. Sahalos

Copyright © 2016 Amar Sharma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A CPW-fed defected substrate microstrip antenna is proposed. The proposed antenna shows wideband applications by choosing suitable defected crown shaped substrate. Defected substrate also reduces the size of an antenna. The radiating patch of proposed antenna is taken in the form of extended U-shape. The space around the radiator is utilized by extending the ground plane on both sides of radiator. Simulation of proposed antenna is done on Ansoft’s High Frequency Structure Simulator (HFSS v. 14). Measured results are in good agreement with simulated results. The prototype is taken with dimensions 36 mm × 42 mm × 1.6 mm that achieves good return loss, constant group delay, and good radiation characteristics within the entire operating band from 4.5 to 13.5 GHz (9.0 GHz) with 100% impedance bandwidth at 9.0 GHz centre frequency. Thus, the proposed antenna is applicable for C and X band applications.