CPW Fed Antenna for Wideband Applications based on Tapered Step Ground and EBG Structure

B  T  P  Madhav; Mounika Sanikommu; M  N  V  S  Pranoop; K  S  N  Manikanta Chandra Bose and B  Sriram Kumar

doi:10.17485/ijst/2015/v8iS9/53392

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CPW Fed Antenna for Wideband Applications based on Tapered Step Ground and EBG Structure

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2015/v8iS9/53392

Year: 2015, Volume: 8, Issue: Supplementary 9, Pages: 1-9

Original Article

CPW Fed Antenna for Wideband Applications based on Tapered Step Ground and EBG Structure

B. T. P. Madhav^*, Mounika Sanikommu, M. N. V. S. Pranoop, K. S. N. Manikanta Chandra Bose and B. Sriram Kumar

Department of ECE, K L University, Guntur District - 522502, Andhra Pradesh, India; [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

A combination of tapered step ground plane with electromagnetic band gap structured CPW fed antenna is proposed for wideband applications. Bandwidth is enhanced by adding tapered steps on the ground plane and by placing EBG structure in the design. Elliptical and rectangular monopole antennas are designed and discussed in detail with respect to their performance characteristics. The proposed models are printed on FR4 substrate of dielectric constant 4.4 with dimension of 20X20X1.6 mm. The parametric analysis with change in substrate permittivity is recorded and presented in this work for better understanding of the antenna behaviour with different substrate materials. The proposed models exhibiting excellent wideband characteristics in the communication applications with stable gain and efficiency.
Keywords: Bandwidth Enhancement, Coplanar Wave Guide Feeding (CPW), Electromagnetic Bandgap Structure (EBG), Tapered Step Ground Plane, Wideband antenna