Focused Connected Array Antenna as a Broadband Beam-Steering Feed for Quasi-Optical System

This communication proposes a broadband and efficient integrated focal plane array solution based on a near-field focused connected array of slots. The focused aperture provides: 1) broadband and highly efficient illumination of the quasi-optical system and 2) scanning capabilities within a focusing system. The connected array antenna in turn...

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...

A novel planar, broadband, high gain lateral wave antenna array for body scanning applications

Three-dimensional body scanning systems are increasingly used in sensitive public areas such as airports. By providing a high resolution image of a person from all sides, it is possible to detect potential metallic, ceramic and explosive threats. For these systems, it is essential to design broadband antennas with a fan beam, highly directional...

Early design of the MOSAIC antenna

The work of this thesis has been carried out in the framework of the project Multi-Object Spectrometer with an Array of superconducting Integrated Circuits, also known as MOSAIC. The aim of this instrument is to resolve the Cosmic Infrared Background (CIB) from a 10 m diameter ground-based telescope. MOSAIC will be the first multi-object three...

Wideband, Wide-Scan Planar Connected Slot Array Enhanced with Artificial Dielectrics

In this thesis, the design of planar connected array of slots loaded with artificial dielectric layers (ADLs) is proposed to achieve wideband and wide-scan capabilities. ADLs are used due to the potential advantage of low surface-wave loss and high radiation efficiency. Whereas, the connected array of slots avoid the implementation of baluns...