Analysis Techniques on Yagi-Uda Antenna Configured for Wireless Terrestrial Communication Applications

Michael F. Adaramola, Emmanuel B. Balogun


The paper focuses on analysis and operation of Yagi-Uda antenna which is usually excited at frequencies between 30MHz and 3GHz with coverage of 40 to 60km.  The length of the reflector is selected approximately equal to 0.55wavelength of the radiated signal. The optimum spacing between the reflector and the driven element is chosen between 0.15wavelength and 0.25wavelength. The length of the reflector has a large effect on the front-to-back ratio and antenna input impedance. For the dipole driven element, a length of 0.47wavelength was chosen to ensure good input impedance to a 50 ohms feed line. In this paper both empirical and measured data were collated to ensure a solid and efficient analysis of the parameters of this antenna. However, the paper has successfully presented a comprehensive analysis of the design, implementation and operation of the end-fire antenna configured for wireless terrestrial communication services.

Keywords: Yagi-Uda antenna, Coverage, Reflector, Dipole driven element, end-fire, Wireless terrestrial communication services

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ISSN (Paper)2224-5782 ISSN (Online)2225-0506
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