A low-profile dual-polarized crossed dipole antenna on a square annular AMC surface

摘要

A low-profile dual-polarized crossed dipole antenna on a square annular AMC surface is proposed in this paper. We design a square annular AMC surface arranging as 8×8, and the antenna is placed in the center of the AMC reflector. The square annular AMC adds a new resonance point to the antenna to broaden the bandwidth that the antenna has an impedance bandwidth of 21.6% from 2.77 to 3.44 GHz for at port1, and the impedance bandwidth of 20.3% from 2.83 to 3.47 GHz at port2. The height of antenna decreased to 0.1 λ0 and realize stable radiation pattern.