Single feed dual-beam linearly polarized holographic metasurface antenna

A single feed, dual-beam linearly polarized scalar and isotropic meta unit-cell loaded holographic metasurface based leaky-wave antenna (HMLWA) is proposed in this work. A near-edge quarter-wave monopole is used to excite the HMLWA. The proposed design demonstrates directive broad beamforming towards (θ, φ)={(−26∘, 0);(42∘90)} with unequal maximum realized gain, Gmm=15.5dBi and 13.8 dBi, respectively. The proposed HMLWA is shown to operate at 15.55GHz with dual-beam radiation pattern having 3dB beamwidths of 4.52° and 6.5° respectively. Unequal object-wave accumulation is performed to achieve unequal gain distribution at the proposed beam directions.