الفهرس 
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Abstract
The worldwide demand for increasing data rate communication for indoor and outdoor applications had taken more interest in recent years. Many studyrecommend that an efficient solution can be found in offering large bandwidth, which is not available in the lowermicrowave spectrum, e.g., at 2 GHz. Thus, the millimeter-wave bandi.e. 60 GHz is highlyrecommendedwhich provides a bandwidth of 4 GHz and more. Also, there is an increasing demand to develop high gain antennas to be used for consumer applications. Some approaches to increase antenna gain at 60 GHz have been reported, but large dimension and increasing in complexity of complete antenna system may limit its use. The desired antenna has to be compatible with modern integrated circuits, and should have advantage of low cost andsmall size.Dielectric rod antenna has been researched and studied for many years.Dielectric rod antennahas the advantages of light weight andsmall size. The increase in popularity of the dielectric rod with circular cross section isdue to its wide bandwidth, ability to create a symmetric radiation pattern, ease of fabrication, and low cost. Dielectric rod antennaisbecoming favorable candidate to be used in millimeter wave band wireless communication.
Optimization of a patch-fed dielectric rod antenna design at millimeter wave band is presented in this thesis. This design is composed of simple dielectric rod antenna made of low cost Teflon having 2.2 relative permittivity, fed by a rectangular patch antenna. Compared to the conventionally used tapered dielectric rod antennas, this configuration can produce higher gain for a given antenna length. A 4-element array is proposed to increase the gain in simple structure. Simulations are performed using CST software. The proposed structure is very simple and suitable for consumer devices.