Double-barrier GaAs/AlAs resonant tunneling diodes (RTDs) have become the promising elements for development of sub-mm and THz emitters. We report on fabrication RTD samples that were characterized via RF-reflectometry to determine parameters its equivalent circuit. By using numerical simulation we show coplanar transmission line with under study provides an amplification up 8 GHz. Keywords: Re...

In this paper, we propose a new tool based on Observed Time Difference of Arrival (OTDOA) technique in order to estimate both the position of the different User Equipments (UEs) and the Relative Time Differences (RTDs) between Node Bs in real UMTS networks from measurements reports providing the TM parameter and the locations of the sites. This technique results in a non-linear least squares es...

The increasing penetration of renewable energy resources such as solar and wind via power electronic inverters is challenging grid dynamics, well planning, operation, protection. Recently, the North American Electric Reliability Corporation (NERC) has reported a series similar events unintended loss generation in Southern California over large geographic area following transmission-level distur...

This application note shows how to select a temperature sensor and conditioning circuit to maximize the measurement accuracy and simplify the interface to the microcontroller. Practical circuits and interface techniques will be provided for embedded applications with thermocouples, Resistive Temperature Detectors (RTDs), thermistors and silicon integrated circuit temperature sensors. The attrib...