J.C. da S Lacava

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This paper reported a step-to-step procedure to design a low-cost FR4 GPS TCMA radiator. In order to reach the GPS specifications, in particular an acceptable value for the radiation efficiency, a thick substrate had to be used. As expected, this procedure improved the radiation efficiency but produced an input impedance that is more inductive, making(More)
Microstrip antennas are very well suited to conformal array applications. Mounted on cylindrical surfaces, most of the developments emphasize the design of N-element wraparound arrays for omnidirectional radiation in the cylindrical roll planes. This paper reports the design of a circularly polarized (CP) circumferential array for the SONDA IV, a Brazilian(More)
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