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In this paper, a dielectric extended hemispherical lens antenna is presented. The antenna has been designed to produce highly directive beams at low THz frequencies. The feeding mechanism is a standard WR-3 rectangular waveguide fitted at the bottom of lens. The antenna is suitable for newly developed waveguide-based automotive radar and communications systems. The initial geometry has been based...
Intensive research and development activity on low-terahertz (0.1–1 THz) electronics, including recent advances in monolithic microwave integrated circuit (MMIC) fabrication, indicate that THz radar might become feasible in the coming decade, at a reasonable cost. Low-THz radar sensors are promising short range sensing for mobile robotics, automotive industry and avionics industries. Physically small...
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