Abstract
This article presents the comparison of different modified Soret lenses suitable for a millimetre and submillimetre-wave dual-band integrated pixel detector. The approach is based on the modification of a printed planar Soret lens, designed to operate in the sub-mm range, to obtain an antenna in the millimetre region. Three modifications of a transmission-mode Soret Lens at 840 GHz based on spiral, logarithmic, and meander antennas geometries have been analyzed with a combination of Kirchhoff's diffraction and full-wave simulation methods. The performance of the designs has been experimentally demonstrated in the submillimetre-wave band, showing good agreement with the simulation results.
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