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A 45% bandwidth in-line air-filled waveguide-to-substrate integrated waveguide (SIW) direct transition is designed to greatly improve the performance of existing configurations. The transition, based on a four-section height-stepped waveguide, includes a single-step widening transformer that enables full-band operation without using any dielectric probe. The absence of the probe reduces significantly...
Earth Observation with optical satellites is a key field in the space sector. In the last decade optical satellites technologically evolved to increase the resolution of the images recorded of the Earth surface. These systems acquire massive data from Earth recordings, and traditional data centers present some limitations. Cloud computing can overcome those limitations and increase the flexibility,...
In this paper, a statistical inference of the probability function regarding the channel parameters of an underwater wireless optical link is presented. Several Monte Carlo simulations of the channel impulse response have been obtained in order to generate an independent data set. Both delay spread and losses have been calculated for every iteration of each designed scenario. Finally, a statistical...
A rail-to-rail CMOS continuous-time common-mode feedback (CMFB) network is introduced in this paper. The proposed scheme is based on the joint use of bulk-driven MOS transistors, which lead to high signal swing, and a partial positive feedback, which allows achieving enhanced DC gain and gain-bandwidth product. The proposed CMFB circuit is used to control the output voltage of a fully differential...
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