Antenas de Microfita Linearmente Polarizadas: Nova Estratégia de Projeto

D. C. Nascimento, J. A. Mores Jr, R. Schildberg, J. C. da S. Lacava, L. Cividanes


Nowadays, it is available in the literature the design procedure for probe-fed linearly polarized microstrip patch antennas. Following it, an antenna with inductive input impedance is obtained. In this paper, a new design approach is proposed to overcome this problem, even for antennas printed on thick substrates. This new approach is applied to rectangular and circular patches. Antenna with low-cost FR4 substrate at S-band is also treated. Very good results are obtained with this new design procedure, mainly for the impedance bandwidth.

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