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  • Concentric annular-ring microstrip antenna with circular polarization 

    Ramirez, M.; Parrón, Josep; González Arbesú, José María; Gemio, J. (2011)
    Restricted access - publisher's policy
    In this letter,we present a concentric annular-ring microstrip antenna that covers the bands of Galileo (E5a, E5b, E1, E2, L1), GPS (L1, L2, L5), and GLONASS (L1, L3). This microstrip antenna is fed by four apertures ...