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Multiband antenna structure for heterogeneous wireless communication systems using DGS technique

Published online by Cambridge University Press:  09 January 2014

Davinder Parkash  and
Rajesh Khanna Open the ORCID record for Rajesh Khanna [Opens in a new window]
Davinder Parkash*
Affiliation:
Haryana College of Technology and Management, Ambala Road, Dist.-Kaithal, Haryana, India
Rajesh Khanna
Affiliation:
TIET, Thapar University, Dist.-Patiala, Punjab, India
*
Corresponding author: D. Parkash Email: [email protected]
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Abstract

This proposed work illustrates the design of a defected ground structure (DGS)-based coplanar waveguide (CPW)-fed multiband microstrip antenna consisting of four vertical monopoles, joined together by the few rectangular horizontal strips. In this multiband antenna, I-shaped defects are inserted into both sides of ground plane of CPW feed creating a DGS-CPW. The 10 dB impedance bandwidth of lower band is 29%, ranging from 2.232 to 3.1 GHz, with respect to the central frequency of 2.52 GHz, and while that of the upper band is 2.1 GHz (4.712–6.81 GHz), about 35%, referred to the central frequency of 5.7 GHz. The parametric study is performed to understand the characteristics of the proposed antenna. To verify the simulated design concept, a prototype antenna is designed and fabricated on the FR4 substrate, and characterized experimentally. The characteristic of antenna parameters such as S-parameter, gain, current distribution, and radiation pattern have been studied. The proposed antenna is suitable for WLAN/WiMAX applications.

Keywords

Antenna designModelling and measurementsAntennas and propagation for Wireless systems
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 6 , Issue 5: MEMSWAVE Symposium 2013 , October 2014 , pp. 521 - 526
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

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