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This communication presents the methodology design and implementation of a monopulse antenna based on quasi-optical (QO) technology at submillimeter wavelengths. The designed monopulse antenna consists of QO sum–difference comparator, beam-waveguide (BWG) feed systems and Cassegrain dual reflector. The BWG system between the feed horn and QO sum–difference comparator is composed of spherical thin...
Physical and technical parameters are reported for a laser optical system that is used to cut and engrave. The laser optical system is formed by optical resonant cavity, reflector mirrors, beam expander, and a focal system. The assembly is part of an equipment to cut and engrave by laser via, which is called Ulyses, and was developed in the Laser Technology Laboratory at IMRE-University of Havana...
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