<p>Antennas play a crucial role in both high-frequency and multi-band wireless communication however, the traditional antenna design methods struggle in achieving multiple resonant frequencies within a single structure. Thus, a novel <i>Omega-Phi Fractal Hexa-Band Square Planar Array Antenna (OFSP-Hex Antenna)</i> is designed to enable robust operation across L, S, C, X, E, and UHF bands. Initially, the nonlinear interactions of surface waves cause resonance shadowing, while the anisotropic behavior of substrate materials induces impedance mismatching. To address this issue, a Fractal phi-shaped omega structure is modelled where the fractal geometry uses its self-similarity for multi-band operation, and the phi-omega structure act as a trap tuner for achieving impedance matching. Additionally, in modern antennas, phase control and beam steering complicate uniform phase distribution across the array whose dense packaging intensifies coupling effects. Hence, an Osprey-Walrus Integrated Roger Substrate (OWIRS-R04003C) is integrated, which enables uniform wave propagation with its dielectric loss and stable permittivity, and optimizes the phase-shifter configurations by tuning spatially variant phase delays. Meanwhile, the metamaterials in the structure induce Surface Plasmon Resonance (SPR) effects, which absorb electromagnetic energy, leading to reflection losses. These issues are mitigated by a Perovskite metasurface microwave absorber that strategically absorbs and dissipates the electromagnetic energy using its high-loss tangent and tunable permittivity. Experimental evaluations with higher efficiency, isolation level, higher gain, and bandwidth witness the antenna’s multiband operation over existing methods.</p>