الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
. The antp.nna~ are the eyes of a wireless communication system, the transducer that •iaaverts guided energy into radiated energy and vice versa. They are considered the most ,. ”caI part of a wireless communications system. Designers have always been trying to ~.,.hesize antennas whose characteristics are stable over a broad range of trequencies. ;However, their trials have always ended up in designs which are expensive and bulky. In ;8ddition the synthesis procedures are likely to be built on trial and error and thus lack
,’.•iDteUigence and optimality. However, the antennas proposed in the thesis can be thought of if: u intelligent based on two point of views. First, their synthesis procedures are systematic ;:’’: UDlike the prevalent synthesis procedures nowadays which mainly depend on cut-and-try .. procedures using the help of powerful computational electromagnetics simulation 1echniques. Second, their fabrication depends on simple procedure and makes use of cheap off’shelf components. To derive the proposed synthesis procedures, two approaches have been adopted. The first approach, scrutinized the existing successful Sierpinski tractal patch antennas in order to derive a systematic synthesis procedure inspired trom it. The
’; antil!nnas based on this approach are called Repeated Kernel Arrays of Microstrip Patches :’i .. (lleKAMPS). Based on this approach, it is possible to generate broadbandlmultiband . ~pItCbes starting trom an arbitrary shaped kernel giving the designer a variety of choices tom which he/she can choose the most appropriate for a particular application. The second
’JOftware and Micro-Stripes Transmission Line Method (TLM) based simulator trom ’ca. Moreover, several of the proposed antennas have been fabricated. The measured IbDulated return loss verified the capability of the proposed approaches to synthesize dlmultiband antennas that can be easily fabricated at a minimum cost.