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Mostrando ítems 21-26 de 26
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Plasmonics and metamaterials at terahertz frequencies
The research presented in this manuscript falls under the framework of metamaterials and plasmonics. It is mainly focused on applications at terahertz (THz) frequencies, a spectral band located between microwaves and ... -
Power-efficient current-mode analog circuits for highly integrated ultra low power wireless transceivers
In this thesis, current-mode low-voltage and low-power techniques have been applied to implement novel analog circuits for zero-IF receiver backend design, focusing on amplification, filtering and detection stages. The ... -
Real-time image acquisition system at W band with frequency scanning array antenna
El objetivo principal de esta tesis ha sido el desarrollo de un sistema de adquisición de imagen en terahercios, de bajo coste, y enfocado a aplicaciones para la industria alimentaria. Para ello primero se llevó a cabo ... -
Synthesis and design of novel metamaterial radiation structures
The present thesis deals with the design and practical implementation of novel netamaterial planar antenna structures based on Complementary Split Ring Resonator (CSRR) particles. As CSRR particles display a very attractive ... -
Theory and model of the hyperacuity in the human eye
The hyperacuity of the human eye may be defined as its known capacity to see small details far away from the limitations set by the number and size of the detectors it has. Basically, the problem consists in the fact ... -
Web browsing interactions inferred from a flow-level perspective
Desde que su uso se extendiera a mediados de los noventa, la web ha sido probablemente el servicio de Internet más popular. De hecho, muchos usuarios la utilizan prácticamente como sinónimo de Internet. Hoy en día los ...