Abstract
Source-antenna transition modeling differential feed of microstrip center-feed bi-plane printed dipole antenna is presented. Design considerations are focused on the feed mode of the studied antenna at its center by the means of ideal plane parallel-plate microstrip transmission line that supports a quasi-TEM mode of propagation. Numerical experiments of the excitation gap effects on the antenna peak resonant resistance were carried out. The calculations of the antenna input impedance using voltage and current wave formalism and the radiated field pattern using retarded potential approach for a given current distribution are performed. It is concluded that bi-plane printed dipole antenna exhibits excellent directional performances such as good selectivity, HPBW of 60° and large band-width of 22%.
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