Yes / In this paper, a simple folded loop antenna (FLA) for handsets with relatively wide- band impedance, designed and optimized using genetic algorithms (GA). The FLA dimensions were optimized and evaluated using GA in collaboration with NEC-2 source code. Configuration of optimal FLA with excellent VSWR covering entirely the required GSM1800 frequency bands was found within the maximum generation. A prototype antenna was tested to verify and validate the GA-optimized antenna structure. The measured data have shown good agreement with predicted ones. Moreover, the capabilities of GA are shown as an e±cient optimisation tool for selecting globally optimal parameters to be used in simulations with an electromagnetic antenna design code, seeking convergence to designated specifications.

Yes / In this paper, a balanced antenna for mobile handset applications with enhanced bandwidth performance, that covers four bands (GSM1800, GSM1900, UMTS and 2.4-GHz WLAN), is investigated. The antenna is a slot planar dipole with folded structure and a dual-arm on each monopole. A wide bandwidth planar balun is employed to feed the wideband balanced antenna from an unbalanced source. A prototype of the proposed antenna is fabricated and tested. The performance of the antenna is veri¯ed and characterized in terms of return loss, radiation patterns and power gain. The calculated and measured results show good agreement and also con¯rm good wideband characteristics for the proposed antenna with multiband operation.

Two novel antenna designs for mobile handsets are proposed in this thesis. With a helix loading, an inverted-L monopole antenna capable of generating two resonances at about 900 and 1850 MHz is first presented. The operating bandwidths obtained cover the required bandwidths of the GSM/DCS/PCS bands. Besides, an internal mobile handset antenna comprising a PIFA and a PILA, which are, respectively, designed for covering the GSM and DCS/PCS bands is also presented. The PIFA and PILA together occupy a compact volume of 7.2 ¡Ñ 20 ¡Ñ 40 mm3, and are suitable to be built-in within the housing of a mobile handset.

Yes / In this manuscript, a high-performance beam-steerable phased array antenna is introduced for fifth-generation (5G) mobile handsets. The configuration of the design is arranged by employing eight dielectric-insensitive L-ring/slot-loop radiators in a linear form on the top edge of the handset mainboard. The beam-steerable array design exhibits high radiation performances even though it is implemented on a lossy FR-4 material. The proposed design exhibits an impedance bandwidth of 18-20 GHz with the center frequency of 19 GHz. It provides satisfactory characteristics such as wide beam-steering, high gain and efficiency characteristics indicating its promising potential for beam-steerable 5G smartphones. The characteristics of the antenna array are insensitive for different types of dielectrics. Furthermore, the designed antenna array offers quite good radiation behavior in the presence of hand phantom.

Marketing and advertisement activities are transforming as new digital media streams emerge. It is believed that the first major digital transition took place when broadcast media such as television and cinema, also called first screen, to the PC Internet, referred to as the second screen, entered the media industry. The last couple of years saw an expanding transition into the third screen, which is the mobile handset, commonly known as cellphones in South Africa. The rapid explosion of mobile phones and other mobile devices has created a new marketing channel. The use of Short Messaging Service, Multimedia Message Service, Graphic WAP Banners, and Video Clips to communicate with customers through their mobile devices / cellphones has gained popularity, making the mobile phone the ultimate medium for one–to–one or one–to–many marketing. And the more mobile handsets penetrate the mass market, the greater are the opportunities for advertising experiences. This exploratory study investigates the impact / effectiveness of mobile advertising to consumers in the short–term insurance industry. The study briefly focuses on whether marketers are reaping the benefits of using this medium to communicate and market their products and services to the identified target market. The findings indicate that mobile advertising has an impact on consumers in the short–term insurance industry. It was also envisaged that where mobile advertising seems to have no effect, the root of the problem lies in the mass marketing approach. Customers are looking for full customisation of mobile marketing messages, based on their individual requirements, tastes, preferences, location, time, and it should also add value to consumers. For maximum impact, it is also recommended that marketers should build measurements, targeting and optimisation into their campaign processes. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2011.

Marketing and advertisement activities are transforming as new digital media streams emerge. It is believed that the first major digital transition took place when broadcast media such as television and cinema, also called first screen, to the PC Internet, referred to as the second screen, entered the media industry. The last couple of years saw an expanding transition into the third screen, which is the mobile handset, commonly known as cellphones in South Africa. The rapid explosion of mobile phones and other mobile devices has created a new marketing channel. The use of Short Messaging Service, Multimedia Message Service, Graphic WAP Banners, and Video Clips to communicate with customers through their mobile devices / cellphones has gained popularity, making the mobile phone the ultimate medium for one–to–one or one–to–many marketing. And the more mobile handsets penetrate the mass market, the greater are the opportunities for advertising experiences. This exploratory study investigates the impact / effectiveness of mobile advertising to consumers in the short–term insurance industry. The study briefly focuses on whether marketers are reaping the benefits of using this medium to communicate and market their products and services to the identified target market. The findings indicate that mobile advertising has an impact on consumers in the short–term insurance industry. It was also envisaged that where mobile advertising seems to have no effect, the root of the problem lies in the mass marketing approach. Customers are looking for full customisation of mobile marketing messages, based on their individual requirements, tastes, preferences, location, time, and it should also add value to consumers. For maximum impact, it is also recommended that marketers should build measurements, targeting and optimisation into their campaign processes. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2011.