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...

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

Coherent Fourier Optics Model for the Synthesis of Large Format Lens Based Focal Plane Arrays

Future sub millimeter imagers are being developed with large focal plane arrays (FPAs) of lenses to increase the field of view (FoV) and the imaging speed. A full-wave electromagnetic analysis of such arrays is numerically cumbersome and time-consuming. This article presents a spectral technique based on Fourier optics combined with...

Reception Power Pattern of Distributed Absorbers in Focal Plane Arrays: A Fourier Optics Analysis

Passive imaging cameras at millimeter and submillimeter wavelengths are currently entering a new era with the development of large format arrays of direct detectors. Several of these arrays are being developed with bare absorbing meshes without any antenna coupling (lens or horn) structures. The design of such arrays is typically done...

Full-Wave Analysis of Electrically Large Reflector Antennas

In this thesis, a full-wave analysis of electrically large reflector antennas (with a surface in the order of several thousands of square wavelengths) is presented. The mathematical model used for the analysis is the Electric Field Integral Equation (EFIE), applied to infinitely thin, Perfectly Conducting (PEC) surfaces. The Method of Moments ...

Analysis and Synthesis of Compact Feeds for Large Multiple-Beam Reflector Antennas