Home Editorial Board Information for Authors Featured Articles THz Letters Best Paper Prize Special Issues Information for Reviewers
September 2023

An f/0.27 High-Gain Lens-Antenna for Ultra-Small Platforms at THz Frequencies

by S. van Berkel, M. Alonso-delPino, C. Jung-Kubiak and G. Chattopadhyay

Abstract: The authors demonstrated a free-standing 74mm diameter hyperbolic silicon lens in a record low 0.27 focal number configuration with an advanced, optimized four-layer leaky wave (LW) feed to efficiently illuminated the lens. Silicon micromachining techniques limited the permittivity for the optimization of each LW feed strata, and this reduced the calculated lens aperture efficiency slightly in the feed simulations. This practical innovative antenna design with low mass, low profile, high-gain and wide bandwidth uniquely facilitates THz spectroscopy on ultrasmall platforms.