A Compact Wideband Sub-THz Horn Feed Enabling Metasurface-based ISAC Systems in 6G Networks
A novel wideband sub-terahertz (sub-THz) horn antenna featuring a parasitic dipole integrated with a compact conical horn is presented as the feeding source for a phase-change-material (PCM)-based tunable metasurface. The horn achieves a 43.48 % impedance bandwidth covering from 90–140 GHz, 11–14 dBi gain, axially symm...