Event - 26 November 2025

PhD Defence : Mm-wave Circuit Design for Non-Coherent Dielectric Waveguide Communication Systems

Lectured by Kristof Dens

What

This work focuses on noncoherent communication, making the transceiver circuits simpler and more power-efficient, as well as obviating the need for carrier recovery. The introduction of a more linear envelope detection strategy based on rectification enables higher-order modulations. In addition, envelope detectable single-sideband signals are proposed as a means of further increasing the spectral efficiency.

On the system level, reflections on electrically-long structures are examined and found to severely degrade the performance. To remedy this, a low-reflection coupler structure is proposed, in addition to using transceivers with well-matched mm-Wave and baseband interfaces.

The mm-Wave amplifying circuits themselves can be made stable, robust and isolated by unilateralizing the individual transistor stages. Where matching networks are often designed using ad-hoc methods, this work introduces a systematic approach based on traditional filter-design techniques which offers improved insight into the trade-offs and allows better control over the resulting network performance.

When

26/11/2025 17:00 - 19:00

Where

ESAT Aula R