Compact omnidirectional VHF antenna for PDRM two ways radio communication vehicles / Wan Zamzulri Wan Ibrahim

Development of Very High Frequency (VHF) omnidirectional antenna for two ways radio communication of Polis DiRaja Malaysia (PDRM) vehicle is reported. The size of the antenna is increasing relatively on the shifting down of the operational frequency which is effect to the rising of wavelength. The m...

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Bibliographic Details
Main Author:	Wan Ibrahim, Wan Zamzulri
Format:	Thesis
Language:	English
Published:	2017
Subjects:	Radio Antennas
Online Access:	https://ir.uitm.edu.my/id/eprint/69078/1/69078.pdf
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id	my-uitm-ir.69078
record_format	uketd_dc
spelling	my-uitm-ir.690782023-03-27T05:50:45Z Compact omnidirectional VHF antenna for PDRM two ways radio communication vehicles / Wan Zamzulri Wan Ibrahim 2017 Wan Ibrahim, Wan Zamzulri Radio Antennas Development of Very High Frequency (VHF) omnidirectional antenna for two ways radio communication of Polis DiRaja Malaysia (PDRM) vehicle is reported. The size of the antenna is increasing relatively on the shifting down of the operational frequency which is effect to the rising of wavelength. The most challenges is due to the large size of patch antenna at the VHF band. The antenna was invented from combination method of slots and meander line and partial ground plane. The narrow and deep slot were fixed on the ground plane after computing the dimensions. However an optimization was using the width of antenna feedline in order to overcome the mismatch impedance of the design. The size of the proposed antenna dimension are 251mm x 181mm or about 0.129?^, x 0.093^ if refer to the center frequency of 155 MHz. This reduction size was 68% from the conventional approach. This antenna produces an omnidirectional radiation pattern with 1.364 dBi gain. Results from both simulation and measurement agreed well each other. 2017 Thesis https://ir.uitm.edu.my/id/eprint/69078/ https://ir.uitm.edu.my/id/eprint/69078/1/69078.pdf text en public masters Universiti Teknologi MARA (UiTM) Faculty of Electrical Engineering Sulaiman, Ahmad Asari
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Sulaiman, Ahmad Asari
topic	Radio Antennas
spellingShingle	Radio Antennas Wan Ibrahim, Wan Zamzulri Compact omnidirectional VHF antenna for PDRM two ways radio communication vehicles / Wan Zamzulri Wan Ibrahim
description	Development of Very High Frequency (VHF) omnidirectional antenna for two ways radio communication of Polis DiRaja Malaysia (PDRM) vehicle is reported. The size of the antenna is increasing relatively on the shifting down of the operational frequency which is effect to the rising of wavelength. The most challenges is due to the large size of patch antenna at the VHF band. The antenna was invented from combination method of slots and meander line and partial ground plane. The narrow and deep slot were fixed on the ground plane after computing the dimensions. However an optimization was using the width of antenna feedline in order to overcome the mismatch impedance of the design. The size of the proposed antenna dimension are 251mm x 181mm or about 0.129?^, x 0.093^ if refer to the center frequency of 155 MHz. This reduction size was 68% from the conventional approach. This antenna produces an omnidirectional radiation pattern with 1.364 dBi gain. Results from both simulation and measurement agreed well each other.
format	Thesis
qualification_level	Master's degree
author	Wan Ibrahim, Wan Zamzulri
author_facet	Wan Ibrahim, Wan Zamzulri
author_sort	Wan Ibrahim, Wan Zamzulri
title	Compact omnidirectional VHF antenna for PDRM two ways radio communication vehicles / Wan Zamzulri Wan Ibrahim
title_short	Compact omnidirectional VHF antenna for PDRM two ways radio communication vehicles / Wan Zamzulri Wan Ibrahim
title_full	Compact omnidirectional VHF antenna for PDRM two ways radio communication vehicles / Wan Zamzulri Wan Ibrahim
title_fullStr	Compact omnidirectional VHF antenna for PDRM two ways radio communication vehicles / Wan Zamzulri Wan Ibrahim
title_full_unstemmed	Compact omnidirectional VHF antenna for PDRM two ways radio communication vehicles / Wan Zamzulri Wan Ibrahim
title_sort	compact omnidirectional vhf antenna for pdrm two ways radio communication vehicles / wan zamzulri wan ibrahim
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Electrical Engineering
publishDate	2017
url	https://ir.uitm.edu.my/id/eprint/69078/1/69078.pdf
_version_	1783735840832225280

Compact omnidirectional VHF antenna for PDRM two ways radio communication vehicles / Wan Zamzulri Wan Ibrahim

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