The Design of Compact Planar Antenna for Microwave Tomography System

This thesis presents the development of antenna design for microwave tomography (MWT) application such as for breast imaging for tumour detection. Thus, to achieve the goals of such application, the antenna with improved return loss, gain, directivity and radiation pattern is required in this thesis...

Full description

Saved in:

Bibliographic Details
Main Author:	Nurul Syuhada, Binti Hasim
Format:	Thesis
Language:	English
Published:	2019
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://ir.unimas.my/id/eprint/26757/3/The%20Design%20of%20Compact%20Planar%20Antenna%20for%20Microwave%20Tomography.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-unimas-ir.26757
record_format	uketd_dc
spelling	my-unimas-ir.267572023-04-19T07:55:55Z The Design of Compact Planar Antenna for Microwave Tomography System 2019-08-31 Nurul Syuhada, Binti Hasim TK Electrical engineering. Electronics Nuclear engineering This thesis presents the development of antenna design for microwave tomography (MWT) application such as for breast imaging for tumour detection. Thus, to achieve the goals of such application, the antenna with improved return loss, gain, directivity and radiation pattern is required in this thesis. Two types of Antipodal Vivaldi antenna (APVA) are implemented to be operated within 3.1- 10 GHz frequency. The parametric study of the parameter is carried out on the offset edge (D), wing edge (A) and ground structure (W) in order to obtain the optimized value of the performance of the antenna. Then, the prototype of the antenna is fabricated by using FR4 material and tested experimentally with the average results are recorded in term of gain with 4-6 dBi and directivity 4-7 dB within the range of frequency told. Thus, a modification of the conventional APVA is carried out by adding the slot onto the edge of the antenna. Similarly, the size of the antenna remains the same with 42.75 mm x 57.25 mm (width x length). The slotted APVA has improved the peak value of the gain and directivity by up to 73.65% with the results of 7.64 dBi and 8.92 dB, respectively. The addition of the slot directing the current flow density towards the flare, improving the concentration of the energy toward the flare and increasing the bandwidth of the antenna resulting a directional radiation pattern suitable for MWT applications. Besides that, a SAR test of conventional APVA on breast model are carried out in this research work by varying the locations, distances and power input of the contact area by implementing the IEEE C95.3 averaging method. The simulation results show that the exposure radiate by the antenna design obey the IEEE and ICNRP standard for safety levels with respect to human exposure to radio frequency EM fields. Universiti Malaysia Sarawak (UNIMAS) 2019-08 Thesis http://ir.unimas.my/id/eprint/26757/ http://ir.unimas.my/id/eprint/26757/3/The%20Design%20of%20Compact%20Planar%20Antenna%20for%20Microwave%20Tomography.pdf text en validuser masters Universiti Malaysia Sarawak (UNIMAS) Faculty of Engineering
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Nurul Syuhada, Binti Hasim The Design of Compact Planar Antenna for Microwave Tomography System
description	This thesis presents the development of antenna design for microwave tomography (MWT) application such as for breast imaging for tumour detection. Thus, to achieve the goals of such application, the antenna with improved return loss, gain, directivity and radiation pattern is required in this thesis. Two types of Antipodal Vivaldi antenna (APVA) are implemented to be operated within 3.1- 10 GHz frequency. The parametric study of the parameter is carried out on the offset edge (D), wing edge (A) and ground structure (W) in order to obtain the optimized value of the performance of the antenna. Then, the prototype of the antenna is fabricated by using FR4 material and tested experimentally with the average results are recorded in term of gain with 4-6 dBi and directivity 4-7 dB within the range of frequency told. Thus, a modification of the conventional APVA is carried out by adding the slot onto the edge of the antenna. Similarly, the size of the antenna remains the same with 42.75 mm x 57.25 mm (width x length). The slotted APVA has improved the peak value of the gain and directivity by up to 73.65% with the results of 7.64 dBi and 8.92 dB, respectively. The addition of the slot directing the current flow density towards the flare, improving the concentration of the energy toward the flare and increasing the bandwidth of the antenna resulting a directional radiation pattern suitable for MWT applications. Besides that, a SAR test of conventional APVA on breast model are carried out in this research work by varying the locations, distances and power input of the contact area by implementing the IEEE C95.3 averaging method. The simulation results show that the exposure radiate by the antenna design obey the IEEE and ICNRP standard for safety levels with respect to human exposure to radio frequency EM fields.
format	Thesis
qualification_level	Master's degree
author	Nurul Syuhada, Binti Hasim
author_facet	Nurul Syuhada, Binti Hasim
author_sort	Nurul Syuhada, Binti Hasim
title	The Design of Compact Planar Antenna for Microwave Tomography System
title_short	The Design of Compact Planar Antenna for Microwave Tomography System
title_full	The Design of Compact Planar Antenna for Microwave Tomography System
title_fullStr	The Design of Compact Planar Antenna for Microwave Tomography System
title_full_unstemmed	The Design of Compact Planar Antenna for Microwave Tomography System
title_sort	design of compact planar antenna for microwave tomography system
granting_institution	Universiti Malaysia Sarawak (UNIMAS)
granting_department	Faculty of Engineering
publishDate	2019
url	http://ir.unimas.my/id/eprint/26757/3/The%20Design%20of%20Compact%20Planar%20Antenna%20for%20Microwave%20Tomography.pdf
_version_	1783728325408063488

The Design of Compact Planar Antenna for Microwave Tomography System

Similar Items