Performance enhancement of microstrip antenna with defect ground structure at frequency 2.45GHz / Nurul Suhaida Desa

This work describes the simulation and measurement of rectangular single patch antenna and array patch antenna at 2.45GHz for defected ground structure (DGS). For designing this microstrip antenna, CST Microwave Studio is used to model the structure of antenna. The single and array patches antenna w...

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Bibliographic Details
Main Author:	Desa, Nurul Suhaida
Format:	Thesis
Language:	English
Published:	2012
Subjects:	Microstrip antennas Applications of electronics
Online Access:	https://ir.uitm.edu.my/id/eprint/67872/1/67872.pdf
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id	my-uitm-ir.67872
record_format	uketd_dc
spelling	my-uitm-ir.678722023-05-08T04:05:38Z Performance enhancement of microstrip antenna with defect ground structure at frequency 2.45GHz / Nurul Suhaida Desa 2012 Desa, Nurul Suhaida Microstrip antennas Applications of electronics This work describes the simulation and measurement of rectangular single patch antenna and array patch antenna at 2.45GHz for defected ground structure (DGS). For designing this microstrip antenna, CST Microwave Studio is used to model the structure of antenna. The single and array patches antenna were fabricated on Rogers RO3003 substrate with a dielectric constant er = 3.0, tan 8 = 0.001 and thickness = 0.75mm. Combinations of two patches using quarter-wavelength impedance transformers matching technique have been used to design the array antenna. Simulations and measurements have been compared in term of VSWR, return loss, radiation pattern and antenna directivity. The measurements have been done using Vector Network Analyzer (VNA). The comparison is being made between antenna with DGS and without DGS. It can be observed that single patch antenna with DGS is improved by 16.45 dB for return loss as compared with single patch antenna without DGS. The directivity is decreased by 0.2 dB. The VSWR also is in the range of 1< VSWR < 2. While for the array antenna with DGS is improved by 7.14% which is 1.5dB for return loss. The directivity of antenna is decreased by 15.01 %. Thus it can be conclude that, the performance of microstrip antenna is enhance while applying defect ground structure to the patch antenna. 2012 Thesis https://ir.uitm.edu.my/id/eprint/67872/ https://ir.uitm.edu.my/id/eprint/67872/1/67872.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Electrical Engineering Baba, Noor Hasimah
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Baba, Noor Hasimah
topic	Microstrip antennas Applications of electronics
spellingShingle	Microstrip antennas Applications of electronics Desa, Nurul Suhaida Performance enhancement of microstrip antenna with defect ground structure at frequency 2.45GHz / Nurul Suhaida Desa
description	This work describes the simulation and measurement of rectangular single patch antenna and array patch antenna at 2.45GHz for defected ground structure (DGS). For designing this microstrip antenna, CST Microwave Studio is used to model the structure of antenna. The single and array patches antenna were fabricated on Rogers RO3003 substrate with a dielectric constant er = 3.0, tan 8 = 0.001 and thickness = 0.75mm. Combinations of two patches using quarter-wavelength impedance transformers matching technique have been used to design the array antenna. Simulations and measurements have been compared in term of VSWR, return loss, radiation pattern and antenna directivity. The measurements have been done using Vector Network Analyzer (VNA). The comparison is being made between antenna with DGS and without DGS. It can be observed that single patch antenna with DGS is improved by 16.45 dB for return loss as compared with single patch antenna without DGS. The directivity is decreased by 0.2 dB. The VSWR also is in the range of 1< VSWR < 2. While for the array antenna with DGS is improved by 7.14% which is 1.5dB for return loss. The directivity of antenna is decreased by 15.01 %. Thus it can be conclude that, the performance of microstrip antenna is enhance while applying defect ground structure to the patch antenna.
format	Thesis
qualification_level	Bachelor degree
author	Desa, Nurul Suhaida
author_facet	Desa, Nurul Suhaida
author_sort	Desa, Nurul Suhaida
title	Performance enhancement of microstrip antenna with defect ground structure at frequency 2.45GHz / Nurul Suhaida Desa
title_short	Performance enhancement of microstrip antenna with defect ground structure at frequency 2.45GHz / Nurul Suhaida Desa
title_full	Performance enhancement of microstrip antenna with defect ground structure at frequency 2.45GHz / Nurul Suhaida Desa
title_fullStr	Performance enhancement of microstrip antenna with defect ground structure at frequency 2.45GHz / Nurul Suhaida Desa
title_full_unstemmed	Performance enhancement of microstrip antenna with defect ground structure at frequency 2.45GHz / Nurul Suhaida Desa
title_sort	performance enhancement of microstrip antenna with defect ground structure at frequency 2.45ghz / nurul suhaida desa
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Electrical Engineering
publishDate	2012
url	https://ir.uitm.edu.my/id/eprint/67872/1/67872.pdf
_version_	1783735740010594304

Performance enhancement of microstrip antenna with defect ground structure at frequency 2.45GHz / Nurul Suhaida Desa

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