DESIGN OF MULTILAYER APERTURE COUPLED STACKED MICROSTRIP PATCH ANTENNA FOR WLAN APPLICATIONS

ICTACT Journal on Communication Technology ( Volume: 6 , Issue: 2 )

Abstract

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One of the major drawbacks of microstrip patch antenna is its narrow bandwidth. The solution of this problem is to use aperture coupled stacked micro strip patch antenna. The antenna uses a combination of aperture coupled feeding technique and multi- layer radiating patch in order for the radiating elements are increase the gain bandwidth. The ‘I’ and ‘H’ shaped aperture slots are etched onto the ground plane. It is used to transfer the energy from feed line to stacked patch. A variation of the feed line length controls the selected aperture slots to be active. The waves from the selected activated aperture slots will radiate to particular radiating patch and achieve the desired resonant frequency. The air gap is used to avoid coupling loss between the aperture slots and stacked patches. The observed simulated and measured results show that the proposed antenna structure resonated at 2.51 GHz frequency with reduced return loss and optimum voltage standing wave ratio.

Authors

P. Jothilakshmi, J. Bharanitharan, V. Ramkumar
Sri Venkateswara College of Engineering, India

Keywords

Gain, Radiation Pattern, Return Loss, Microstrip Patch, Air Gap

Published By
ICTACT
Published In
ICTACT Journal on Communication Technology
( Volume: 6 , Issue: 2 )
Date of Publication
June 2015
Pages
1105-1111

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