Development of a circular complementary split ring resonator microstrip antenna for high altitude platform station

In this thesis, the influences of Circular Complementary Split Ring Resonators (CCSRR) and air gap within the circular microstrip patch antenna structure are investigated for the use of Malaysia’s future High Altitude Platform Station(HAPS) wireless communication. The proposed antenna is designed t...

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Main Author:	Muhammad Ezanuddin, Abdul Aziz
Format:	Thesis
Language:	English
Subjects:	Microstrip patch antenna Split ring resonators Antennas Complementary split ring resonators (CSRRs) High Altitude Platform Stations (HAPS)
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31251/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31251/2/Full%20text.pdf
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spelling	my-unimap-312512014-01-16T09:40:17Z Development of a circular complementary split ring resonator microstrip antenna for high altitude platform station Muhammad Ezanuddin, Abdul Aziz In this thesis, the influences of Circular Complementary Split Ring Resonators (CCSRR) and air gap within the circular microstrip patch antenna structure are investigated for the use of Malaysia’s future High Altitude Platform Station(HAPS) wireless communication. The proposed antenna is designed to operate from 5.850 GHz to 7.075 GHz spectrum band using microwave laminate RT/D 5880 (εr = 2.2 and thickness of 1.82 mm). The antenna structure was organized into three separate layers consisting of circular copper sheet as the ground plane (layer number one), an undersized main radiator, where the electromagnetic signal and energy gathered and stored, focuses and passes through (layer number two) to resonate its above layer and the etched slotted split ring resonators on the dielectric laminate (layer number three) supported by low dielectric foams (εr = 1.2). All layers are separated by an air gap, simulated and optimized using the Computer Simulation Technology Suite (CST), Microwave Studio software. The distance of air gap, the positioning of coaxial feed together with a small circular copper patch, the number and the width of the split ring resonators corresponding to each individual circular patch are varied and analyzed as the key player studies. The results of the return losses, VSWR, realized gain and farfield characteristics either in 2D, 3D or polar plot views obtained are compared and analyzed. Measurement of the fabricated antenna showed deep line return loss below -10 dB beginning at 5.75 GHz to 7.25 GHz as compared to simulations which were 5.0 GHz to 7.5 GHz (VSWR 2:1). Overall, the antenna, once compared between its simulations and fabricated managed to produce a stable 5 dBi gain and directivity along the targeted spectrum band. The results show that inclusion of split ring resonators have enhanced and improved the antenna fundamental performance and in terms of sustaining the targeted bandwidth. The CCSRR structure also managed to produce real part of permittivity and permeability readings into negative values through a two port numerical simulation, part of a metamaterial simulation experiment, that is to investigate Double Negative (DNG) characteristics. DNG characteristics helps to improve surface current flow raised the gain and beam phase within the frequency spectrum (the more negative the values of ε and become, a slight increase to the gain can be observed). CST MW powerful transient solver was able to simulate the antenna integration with a miniaturized plane the stratospheric M55. Deploying two antenna units on the M55 aircraft wings (separated at 23 meter apart, the total wingspan = 37.46 meter) have created an array formation and further increased the signal gain. The antenna produced maximum E-plane and H-plane co and cross polarization difference in the magnitude of 3.5 dB and E-plane half power beam width (HPBW) of 200. Universiti Malaysia Perlis (UniMAP) 2011 Thesis en http://dspace.unimap.edu.my:80/dspace/handle/123456789/31251 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31251/1/Page%201-24.pdf 84c24883945d8f0f0290b1da7bb4cc60 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31251/2/Full%20text.pdf 541f34c2368fbc63cdc93d12c417538e http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31251/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 Microstrip patch antenna Split ring resonators Antennas Complementary split ring resonators (CSRRs) High Altitude Platform Stations (HAPS) School of Computer and Communication Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
topic	Microstrip patch antenna Split ring resonators Antennas Complementary split ring resonators (CSRRs) High Altitude Platform Stations (HAPS)
spellingShingle	Microstrip patch antenna Split ring resonators Antennas Complementary split ring resonators (CSRRs) High Altitude Platform Stations (HAPS) Muhammad Ezanuddin, Abdul Aziz Development of a circular complementary split ring resonator microstrip antenna for high altitude platform station
description	In this thesis, the influences of Circular Complementary Split Ring Resonators (CCSRR) and air gap within the circular microstrip patch antenna structure are investigated for the use of Malaysia’s future High Altitude Platform Station(HAPS) wireless communication. The proposed antenna is designed to operate from 5.850 GHz to 7.075 GHz spectrum band using microwave laminate RT/D 5880 (εr = 2.2 and thickness of 1.82 mm). The antenna structure was organized into three separate layers consisting of circular copper sheet as the ground plane (layer number one), an undersized main radiator, where the electromagnetic signal and energy gathered and stored, focuses and passes through (layer number two) to resonate its above layer and the etched slotted split ring resonators on the dielectric laminate (layer number three) supported by low dielectric foams (εr = 1.2). All layers are separated by an air gap, simulated and optimized using the Computer Simulation Technology Suite (CST), Microwave Studio software. The distance of air gap, the positioning of coaxial feed together with a small circular copper patch, the number and the width of the split ring resonators corresponding to each individual circular patch are varied and analyzed as the key player studies. The results of the return losses, VSWR, realized gain and farfield characteristics either in 2D, 3D or polar plot views obtained are compared and analyzed. Measurement of the fabricated antenna showed deep line return loss below -10 dB beginning at 5.75 GHz to 7.25 GHz as compared to simulations which were 5.0 GHz to 7.5 GHz (VSWR 2:1). Overall, the antenna, once compared between its simulations and fabricated managed to produce a stable 5 dBi gain and directivity along the targeted spectrum band. The results show that inclusion of split ring resonators have enhanced and improved the antenna fundamental performance and in terms of sustaining the targeted bandwidth. The CCSRR structure also managed to produce real part of permittivity and permeability readings into negative values through a two port numerical simulation, part of a metamaterial simulation experiment, that is to investigate Double Negative (DNG) characteristics. DNG characteristics helps to improve surface current flow raised the gain and beam phase within the frequency spectrum (the more negative the values of ε and become, a slight increase to the gain can be observed). CST MW powerful transient solver was able to simulate the antenna integration with a miniaturized plane the stratospheric M55. Deploying two antenna units on the M55 aircraft wings (separated at 23 meter apart, the total wingspan = 37.46 meter) have created an array formation and further increased the signal gain. The antenna produced maximum E-plane and H-plane co and cross polarization difference in the magnitude of 3.5 dB and E-plane half power beam width (HPBW) of 200.
format	Thesis
author	Muhammad Ezanuddin, Abdul Aziz
author_facet	Muhammad Ezanuddin, Abdul Aziz
author_sort	Muhammad Ezanuddin, Abdul Aziz
title	Development of a circular complementary split ring resonator microstrip antenna for high altitude platform station
title_short	Development of a circular complementary split ring resonator microstrip antenna for high altitude platform station
title_full	Development of a circular complementary split ring resonator microstrip antenna for high altitude platform station
title_fullStr	Development of a circular complementary split ring resonator microstrip antenna for high altitude platform station
title_full_unstemmed	Development of a circular complementary split ring resonator microstrip antenna for high altitude platform station
title_sort	development of a circular complementary split ring resonator microstrip antenna for high altitude platform station
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Computer and Communication Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31251/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31251/2/Full%20text.pdf
_version_	1747836786730598400

Development of a circular complementary split ring resonator microstrip antenna for high altitude platform station

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