Design of a Wide-Scan Lens Based Focal Plane Array for Sub-millimeter Imaging Systems Using Coherent Fourier Optics

Activity: Talk or presentationTalk or presentation at a conference

Description

Future sub-millimeter imagers will use large format focal plane arrays (FPAs) of lenses to increase their field of view and the imaging speed. This abstract employs a spectral technique based on Fourier Optics for analyzing lens based FPAs. Here, the method is applied to optimize the scanning performance of an imager with monolithically integratable lens feeds without employing any optimization algorithms, by doing a field match by a tunable leaky resonant antenna. The synthesized FPA achieved scan losses
much lower than the ones predicted by standard formulas related to the direct field coming from the reflector. In particular, a FPA with scan loss below 1 dB while scanning up to +-17.5° is presented with directivity of 52 dB. A prototype of the described design using realistic antenna feeders is also presented.
Period16 Mar 2020
Event title14th European Conference on Antennas and Propagation, EuCAP 2020
Event typeConference
Conference number14
LocationCopenhagen, Denmark
Degree of RecognitionInternational