Wideband dipole antenna using multiple-mode resonator for long-term evolution application

A coplanar waveguide fed wideband dipole antenna using a multiple-mode resonator is proposed and developed. A simple dipole antenna structure is investigated for its wideband radiation performance by virtue of its single, double, triple and quadruplet resonant modes. Later, a metallic reflector is properly installed in order to provide a unidirectional radiation pattern as demanded for the long-term evolution (LTE) application. In the design, a quadruplet-mode wideband dipole antenna is explored to cover the LTE operation band with a 10 dB fractional bandwidth of 46.8%. Finally, an antenna prototype is fabricated and tested to experimentally verify the expected wideband property and predicted results.