Buscar
Mostrando ítems 41-50 de 373
On the nature of unused TCP connections in web traffic
(2015)
info:eu-repo/semantics/conferenceObject,
The popularity of the web and the requirements
introduced by current web content have pushed for the development
of new techniques that meet these challenges and improve
the experience of the users. In particular, during ...
A gap waveguide fed circular polarization antennas in the millimeter wave range
(IEEE, 2020)
info:eu-repo/semantics/conferenceObject,
In this work, a novel circular polarization (CP) antennas in ridge gap waveguide (RGW) working in the V-band of the millimeter-wave spectrum is presented. CP is generated in a simple and effective way by means of two ...
On the stability criteria for inverter current control loops with LCL output filters and varying grid impedance
(IEEE, 2017)
Contribución a congreso / Biltzarrerako ekarpena,
The use of LC and LCL filters and grid impedance variations are creating new challenges on the controller design for current control loops of photovoltaic and wind turbine inverters. In the design process, stability criteria ...
Comparison of linear and and small-signal models for inverter-based microgrids
(IEEE, 2014)
Contribución a congreso / Biltzarrerako ekarpena,
Frequency and voltage regulation in droop-based microgrids is generally modeled using small-signal analysis. In order to ensure accuracy, existing models do not decouple real and reactive power responses. However, the ...
Experimental study of the antenna influence in RTLS based-on RFID
(IEEE, 2012)
Contribución a congreso / Biltzarrerako ekarpena,
Nowadays Real-time localization systems (RTLS)
are growing up very quickly but there are some remaining
issues which need to be analyzed. This paper presents an
experimental study that shows how different kind of antennas
can ...
Parametric study of pin surface used to suppress undesired modes in a packaged W-band microstrip receiver
(IEEE, 2013)
Contribución a congreso / Biltzarrerako ekarpena,
A pin surface structure has been used in order to
suppress undesired modes in a packaged W-band RF front-end
receiver. A parametric analysis has been carried out in order to
determine the optimum dimensions. Resonances ...
Low profile THz periodic leaky-wave antenna
(IEEE, 2014)
Contribución a congreso / Biltzarrerako ekarpena,
In this work, a 0.566THz flat leaky-wave antenna, consisting of a central λ0/2 slot surrounded by straight parallel wedge corrugations, is numerically and experimentally analyzed. Simulations show a moderately high gain ...
All-metallic ε-near-zero (ENZ) lens based on ultra-narrow hollow rectangular waveguides: experimental results
(IEEE, 2014)
Contribución a congreso / Biltzarrerako ekarpena,
Here we perform numerical and experimental investigation of plano-concave all-metallic ε-near-zero (ENZ) lens with operational frequency f = 144 GHz. The ENZ lens is achieved by stacking an array of narrow hollow rectangular ...
Fiber-based label-free D-dimer detection for early diagnosis of venous thromboembolism
(SPIE, 2020)
info:eu-repo/semantics/conferenceObject,
D-dimer is a useful diagnostic biomarker for deep vein thrombosis or pulmonary embolism, collectively referred to as venous thromboembolism (VTE). The ability to detect in real-time the amount of D-dimer with a fast and ...
Effect of the inner current loop on the voltage regulation for three-phase photovoltaic inverters
(IEEE, 2020)
info:eu-repo/semantics/conferenceObject,
In three-phase grid-connected PV inverters, regulating the input voltage is a fundamental requirement. In order to reduce the influence of the PV non-linear behavior and ensure stability in the whole operating range, the ...