In this communication, a U-slot microstrip antenna operating at the
mode to attain dual radiation beams with wideband performance
( 10%) is proposed. The U-slot inclusion on the patch’s surface introduces
asymmetry, which affects the radiation characteristics, such
as pattern symmetry, pattern stability, x-pol level, and the direction of
the beams. An investigation on how these parameters are affected is
presented. The realized gain and efficiency for each beam, and the difference
between their maxima levels are also presented. The proposed
design is validated with experimental measurement of a fabricated prototype.