Ultra wideband antenna of tilted triangular monopoles

In this paper, we propose two novel antennas for ceiling-mount base station applications. Conceptually, they are based on the self-complementary principle, but overcome the mentioned drawbacks of such antennas. Two slightly different topologies with triangular monopoles are presented to improve the impedance matching and the pattern stability across the operating bandwidth from 1 to 5.5 GHz. Therefore, both experimental and computational results of the antennas impedance and radiating properties are shown.