Pham, Thi Quynh Anh (Date of defense: 2019-12-18)
The power efficiency and linearity of radio frequency (RF) power amplifiers (PAs) are critical in wireless communication systems. The main scope of PA designers is to build the RF PAs capable to maintain ...
Muñoz Porcar, Constantino (Date of defense: 2013-02-22)
This thesis is the initial stage in the development of a range-resolving Doppler wind lidar. Atmospheric lidars emit pulsed laser radiation that after being scattered by air molecules and suspended ...
Grün, Alexander (Date of defense: 2014-11-07)
In this thesis I investigate two methods for generating ultrashort laser pulses in spectral regions which are ordinarily difficult to achieve by the existing techniques. These pulses are specially ...
Mariano Juste, Marina (Date of defense: 2014-10-31)
Considering that the most abundant renewable energy source is the Sun, photovoltaic technology possesses one of the highest potentials to provide environmental benign and sustainable energy worldwide. ...
Gutiérrez Antuñano, Miguel Ángel (Date of defense: 2019-07-08)
This Ph.D. thesis addresses remote sensing of the atmosphere by means of lidar and S-band clear-air weather radar, and related data signal processing. Active remote sensing by means of these instruments ...
Paredes Camacho, Alejandro (Date of defense: 2020-07-17)
The trend in the development of power converters is focused on efficient systems with high power density, reliability and low cost. The challenges to cover the new power converters requirements are ...
Fontserè Recuenco, Abel (Date of defense: 2013-07-23)
Nowadays, the microelectronics technology is based on the mature and very well established silicon (Si) technology. However, Si exhibits some important limitations regarding its voltage blocking capability, ...
Carreras Pons, Normandino (Date of defense: 2016-04-11)
Volcanic eruptions result of the energy stored within the planet are a danger to both populations and to the towns. As inevitable natural events, it is necessary to continue evolving in the study of the ...
Monells Miralles, Daniel (Date of defense: 2017-01-18)
Space-borne Synthetic Aperture Radar (SAR) systems have demonstrated great effectiveness to survey wide areas, independently of the weather conditions and the day/night cycle. One of the most exploited ...
Gallego López, Rodrigo (Date of defense: 2013-02-22)
The device-independent formalism is a set of tools to analyze experimental data and infer properties about systems, while avoiding almost any assumption about the functioning of devices. It has found ...