BUSCADOR RECOLECTA

This paper presents the comparison of different modified Soret lenses suitable for a millimeter and submillimeterwave dualband integrated pixel detectors. 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 at the millimeter region. Three modifications of a transmission-mode Soret Lens at 850 GHz based on spiral, logarithmic and meander antennas geometries have been analyzed with a combination of Kirchhoffs Diffraction and full-wave simulation methods. The performance of the designs has been experimentally demonstrated in the submillimeterwave band, showing good agreement with simulation results., The authors would like to thank financial support by the Spanish Ministry of Science and Innovation, Project No. TEC2013-47753-C3-1-R, TEC2014-61817-EXP and TEC2016-76997-C3-1-R.

This paper presents a planar silicon integrated subharmonic mixer on top of a photonic-crystal platform. The local oscillator (LO) power is injected through a 2D photonic crystal (PC) slab to a resonant cavity that effectively couples the signal to a planar bow-tie antenna. The same antenna, which is printed on the top of the PC cavity, contains an antiparallel Schottky diode pair which performs the down-conversion. The proposed design is a simple, easy to integrate, low cost, low profile device. Moreover, the described fabrication process is compatible with active components integration. The performance
of the design has been experimentally demonstrated showing good agreement with the simulation and is comparable with the state of-the-art of planar mixers. The work presented here is based on concepts and technologies from electronics and photonics domains and may be a good starting point for the creation of new devices, allowing the integration and upgrading of existing techniques from both worlds., The authors would like to thank financial support by
the Spanish Ministry of Science and Innovation, Dirección
General de Investigación y Gestión del Plan Nacional de I+D+I,Subdirección General de Proyectos de Investigación, Project No. TEC2013-47753-C3-1-R, TEC2014-61817-EXP and TEC2016-76997-C3-1-R.