Design and evaluation of wearable textile antennas backed by AMC for localization application
This research focuses on the development of several new compact antennas suitable for localization application in a wearable format. To ensure that these antennas are able to operate with minimal detuning caused when placed on body, they have been designed with three strategies, first is to ensur...
Saved in:
| Format: | Thesis |
|---|---|
| Language: | English |
| Subjects: | |
| Online Access: | http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/4/Ezzaty.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
my-unimap-78002 |
|---|---|
| record_format |
uketd_dc |
| spelling |
my-unimap-780022023-03-06T05:01:46Z Design and evaluation of wearable textile antennas backed by AMC for localization application Soh, Ping Jack, Assoc. Prof. Dr. This research focuses on the development of several new compact antennas suitable for localization application in a wearable format. To ensure that these antennas are able to operate with minimal detuning caused when placed on body, they have been designed with three strategies, first is to ensure its size compactness, secondly, a wide bandwidth and finally, to adapt, wherever possible, a full rear ground plane. However, the implementation of miniaturization techniques typically results in gain degradation, whereas the implementation of the full ground plane limits antenna bandwidth. One efficient method to simultaneously overcome both is the use of multiple miniaturization and broadbanding techniques such as slots and artificial magnetic conductor (AMC) plane. This AMC plane is formed using an array of unit cells based on the square patch to operate in single or multiband modes. To enable size compactness and multiband operation, square-shaped ring slots are integrated onto the square unit cells prior to its combined use with antennas. Three new antenna designs are proposed in this dissertation; a dual-band dual-polarized textile antenna with AMC plane (Antenna 1), a wideband textile microstrip-based antenna (Antenna 2(a)) and wideband textile antenna with ring slotted AMC (Antenna 2(b)). Besides differences in topology, these antennas also operated in different frequency modes (dual-band and wideband), and are being designed on different textile materials. Despite being inherently narrowband, the microstrip-based Antenna 2(a) and Antenna 2(b) are designed to be wideband and compact by combining several broadbanding and miniaturization techniques. Antenna 1 obtained a gain of 1.98 dB with a bandwidth of 7.6% at 1.575 GHz. Meanwhile, at 2.45 GHz it showed 1.94 dB of gain with 5.5 % of bandwidth. It also indicated 9 % of axial ratio for circular polarization at 1.575 GHz. Meanwhile, Antenna 2(a) obtained a realized gain and bandwidth of 3.5 dB and 51 %, respectively. Finally, the combination of AMC plane and this wideband planar antenna enhanced the overall bandwidth and decreased the antenna size. These antennas indicated great potential as effective antennas for application in smart wearable localization in indoor and outdoor environments. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78002 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/1/Page%201-24.pdf d4a0612ba8a4cd861783b63c9bc006f9 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/2/Full%20text.pdf c261488f30ed64fd1e2d9606a862437a http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/4/Ezzaty.pdf eb4ac568ae218ab9c6a3365012474be0 Universiti Malaysia Perlis (UniMAP) Wearable technology -- Antennas Global Positioning System Wireless LANs Body area networks (Electronics) School of Computer and Communication Engineering |
| institution |
Universiti Malaysia Perlis |
| collection |
UniMAP Institutional Repository |
| language |
English |
| advisor |
Soh, Ping Jack, Assoc. Prof. Dr. |
| topic |
Wearable technology -- Antennas Global Positioning System Wireless LANs Body area networks (Electronics) |
| spellingShingle |
Wearable technology -- Antennas Global Positioning System Wireless LANs Body area networks (Electronics) Design and evaluation of wearable textile antennas backed by AMC for localization application |
| description |
This research focuses on the development of several new compact antennas suitable for
localization application in a wearable format. To ensure that these antennas are able to
operate with minimal detuning caused when placed on body, they have been designed
with three strategies, first is to ensure its size compactness, secondly, a wide bandwidth
and finally, to adapt, wherever possible, a full rear ground plane. However, the
implementation of miniaturization techniques typically results in gain degradation,
whereas the implementation of the full ground plane limits antenna bandwidth. One
efficient method to simultaneously overcome both is the use of multiple miniaturization
and broadbanding techniques such as slots and artificial magnetic conductor (AMC)
plane. This AMC plane is formed using an array of unit cells based on the square patch
to operate in single or multiband modes. To enable size compactness and multiband
operation, square-shaped ring slots are integrated onto the square unit cells prior to its
combined use with antennas. Three new antenna designs are proposed in this
dissertation; a dual-band dual-polarized textile antenna with AMC plane (Antenna 1), a
wideband textile microstrip-based antenna (Antenna 2(a)) and wideband textile antenna
with ring slotted AMC (Antenna 2(b)). Besides differences in topology, these antennas
also operated in different frequency modes (dual-band and wideband), and are being
designed on different textile materials. Despite being inherently narrowband, the
microstrip-based Antenna 2(a) and Antenna 2(b) are designed to be wideband and
compact by combining several broadbanding and miniaturization techniques. Antenna 1
obtained a gain of 1.98 dB with a bandwidth of 7.6% at 1.575 GHz. Meanwhile, at 2.45
GHz it showed 1.94 dB of gain with 5.5 % of bandwidth. It also indicated 9 % of axial
ratio for circular polarization at 1.575 GHz. Meanwhile, Antenna 2(a) obtained a
realized gain and bandwidth of 3.5 dB and 51 %, respectively. Finally, the combination
of AMC plane and this wideband planar antenna enhanced the overall bandwidth and
decreased the antenna size. These antennas indicated great potential as effective
antennas for application in smart wearable localization in indoor and outdoor
environments. |
| format |
Thesis |
| title |
Design and evaluation of wearable textile antennas backed by AMC for localization application |
| title_short |
Design and evaluation of wearable textile antennas backed by AMC for localization application |
| title_full |
Design and evaluation of wearable textile antennas backed by AMC for localization application |
| title_fullStr |
Design and evaluation of wearable textile antennas backed by AMC for localization application |
| title_full_unstemmed |
Design and evaluation of wearable textile antennas backed by AMC for localization application |
| title_sort |
design and evaluation of wearable textile antennas backed by amc for localization application |
| granting_institution |
Universiti Malaysia Perlis (UniMAP) |
| granting_department |
School of Computer and Communication Engineering |
| url |
http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78002/4/Ezzaty.pdf |
| _version_ |
1776104260032790528 |