Abstract
Cognitive radio is one of the most promising techniques to efficiently utilize the radio frequency (RF) spectrum. As the Digital Video Broadcasting-Handheld (DVB-H) band is targeted (470-862 MHz), the size of the antenna becomes challenging. Metamaterial concept is used as a miniaturization technique. Two antennas are designed, fabricated and measured. The first one achieved multiband operation by loading it with a metamaterial unit cell. These bands are controlled by engineering the dispersion relation of the unit cell. The second one, which is a 2-lumped elements loaded antenna, achieved wideband operation through the entire DVB-H band with a planar size of 5×2 cm^2. A model is proposed to explain, through simple numerical simulations and an optimization algorithm, the behavior of these component loaded antennas (which are equivalent to metamaterial inspired electrically small antennas).
Department
Electronics & Communications Engineering Department
Degree Name
MS in Electronics & Communication Engineering
Graduation Date
6-1-2013
Submission Date
May 2013
First Advisor
Darwish, Dr. Ali
Committee Member 1
Safwat, Dr. Amr
Committee Member 2
Ismail, Dr. Yehea
Extent
120 p.
Document Type
Master's Thesis
Library of Congress Subject Heading 1
Radio -- Antens.
Library of Congress Subject Heading 2
Wireless communication systems.
Rights
The author retains all rights with regard to copyright. The author certifies that written permission from the owner(s) of third-party copyrighted matter included in the thesis, dissertation, paper, or record of study has been obtained. The author further certifies that IRB approval has been obtained for this thesis, or that IRB approval is not necessary for this thesis. Insofar as this thesis, dissertation, paper, or record of study is an educational record as defined in the Family Educational Rights and Privacy Act (FERPA) (20 USC 1232g), the author has granted consent to disclosure of it to anyone who requests a copy.
Institutional Review Board (IRB) Approval
Approval has been obtained for this item
Recommended Citation
APA Citation
Raslan, A.
(2013).Metamaterial antennas for cognitive radio applications [Master's Thesis, the American University in Cairo]. AUC Knowledge Fountain.
https://fount.aucegypt.edu/etds/1238
MLA Citation
Raslan, Ahmed Rajaie. Metamaterial antennas for cognitive radio applications. 2013. American University in Cairo, Master's Thesis. AUC Knowledge Fountain.
https://fount.aucegypt.edu/etds/1238
Comments
The work in this thesis was sponsored by NTRA. The project was called: Ebling Techniques for TV Band Cognitive Radios I would like to express my deep appreciation for my supervisors, Dr. Amr Safwat and Dr. Ali Darwish for their endless support and help throughout this thesis. I would also like to acknowledge the help I had received from my friend in the Microwave Lab., Eng. Amr A. Ibrahim. Filly, I would like to thank Eng. Ola Galal for her help in wielding the lumped inductors.