A Novel Planar Perforated Hyperbolic Secant Lens Antenna for Milli-Wave Applications

In this paper, a novel generalized hyperbolic secant (H-S) lens antenna is introduced using perforated dielectric. The simulation results show 24.7dBi of realized gain at 10 GHz with low sidelobe levels (less than -18dB) and 3-dB beamwidth of 9° can be achieved. The 3-D printing technique can be utilized to fabricate the perforated structure of proposed lens. Due to its intrinsic flat shape characteristic, this lens concept could be a potential alternative design for planar Luneburg and half Maxwell fish-eye lens for millimeter-wave application, avoiding using extremely complex conformal mapping methods.