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Design of triple-band microstrip antenna for mobile phone jammer
International Islamic University Malaysia
Department of Electrical and Computer Engineering
Kulliyyah of Engineering, International Islamic University Malaysia
The new developments in wireless technology required the use of microstrip antenna in many applications and necessitated the use of a smaller size antenna with higher gain, lighter weight and lower cost. In this study a h-shaped patch antenna with a small size is designed as a new shape to produce a triple-band frequency that works with a mobile phone jammer. These bands are 0.9, 1.8 and 2.45 GHz. The triple-band is achieved using three slots inside a rectangular patch antenna. Each slot is dedicated to a specific frequency based on relationship between the length of the slot and the wavelength of the frequency. The commercial software, CST Microwave Studio, is used for the antenna design and optimization. In CST software there are five types to optimize the h-shape patch antenna to accomplish the triple-band with a good resonant frequency and return loss. One of these types is called genetic algorithm that is used here. The bandwidth is increased by using a short pin method. The h-shape slot single patch antenna is fabricated and the measured results are shown improvement in terms of return loss, resonant frequency and bandwidth when compared with previous works. Finally, the h-shaped single patch antenna is arranged in a linear array and the mutual coupling between elements is decreased.
"A dissertation submitted in fulfilment of the requirement for the dgeree of Master of Science in Communication Engineering."--On t.p.
Thesis (MSCE)--International Islamic University Malaysia, 2013.
Includes bibliographical references (leaves 89-94).