Agenda

PhD Thesis Defence

High-Speed Interfaces for Capacitive Displacement Sensor

Sha Xia

This thesis describes the theory, design, and implementation of high-speed capacitive displacement sensor interface circuits. The intended application is to readout the capacitive displacement sensor used in a servo loop, where the measurement time needs to be low to ensure loop stability. The work employs baseline-capacitance cancellation technique to reach a high energy-efficiency and high conversion speed.

Overview of PhD Thesis Defence

Agenda

PhD Thesis Defence

Violeta Prodanovic

Ultra-thin MEMS tynodes for electron multiplication

PhD Thesis Defence

Hui Jiang

Capacitively-Coupled Bridge Readout Circuits

This Ph.D. dissertation describes the design and realization of energy efficient readout integrated circuits (ROICs), that have an input referred noise density < 5 nV/√Hz and a linearity of < 30 ppm, as required by Wheatstone bridge sensors used in precision mechatronic systems. Novel techniques were developed, at both the system-level and circuit-level, to improve the ROIC’s energy-efficiency, while preserving its stability and precision. Two prototypes are presented, each with best-in-class energy efficiency, to demonstrate the effectiveness of the proposed techniques.

PhD Thesis Defence

Robert Sokolovskij

AlGaN/GaN high electron mobility transistor (HEMT) based sensors for gas sensing applications

PhD Thesis Defence

Cristina Yepes

3D Elements for Phased-Array Systems: Analysis and Design.

Phased arrays for radar and communication systems require supporting frequency and angular selectivity functions to reduce interference and enable more flexible operation. Frequency selective surfaces with large rejection bands and their integration with phased arrays are investigated. Moreover, array of tilted dipole elements are proposed to achieve radiation with asymmetric field of view.