Scanning Lens Phased Array Antennas: Analysis, design and demonstrations at millimeter and submillimeter wavelengths using leaky-wave feeds

Millimeter- and submillimeter wave applications, such as point-to-point wireless communications in beyond-5G scenarios, long-range automotive radars and astronomy and astrophysics science cases from space require antennas with high-gain beams that are steerable. At lower (microwave) frequencies, fully sampled phased arrays with thousands of...

On the Modelling and Characterisation of Photoconducting Antennas

In recent years, the interest in terahertz technology witnessed a constant increasing interest and attention from the scientific community, as it allows to unlock the THz bandwidth, that can be used for a wide range of applications: it helps the study of biological samples and help medical diagnostics; it serves as a harmless non-destructive...

On the Design of Fly's Eye Lenses at Sub-THz Frequencies for Wideband Communications

The expanding demand for high-speed wireless communications is pushing current networks and systems close to their limits. The use of sub-THz bands, where large bandwidth is available, is pointed out as one of the key strategies to cope with the huge amount of data transfer in the next Beyond 5G and 6G communications generations. Despite the...

On the Development of Wideband Direct Detection Focal Plane Arrays for THz Passive Imaging Applications

In the design of millimeter and sub-millimeter wave radiometric imaging systems a persistent goal is the increase in the speed of acquisition of the image while maintaining a high sensitivity. Typically, the highest sensitivity is achieved by cryogenically cooling the detectors, specifically in astronomical applications. However, for the purpose...

Fourier Optics Field Representations for the Design of Wide Field-of-View Imagers at Sub-millimetre Wavelengths