Matching layer phenomena on integrated lens antennas

Background: High-permittivity lenses (e.g. Silicon) are popular due to their ability to achieve high aperture efficiency when combined with directive feed antennas. However, the strong permittivity contrast at the lens boundary leads to increased reflection losses, which state-of-the-art designs mitigate using quarter-wavelength matching layers (ML). Accurate and computationally-efficient modelling of these structures is therefore essential in the design of such systems. However, existing methodologies often show discrepancies with measured results, highlighting the need for a more reliable techniques.

Master Thesis Project: The study of matching layer effects on the radiation of integrated lens antennas. The approach, based on stratified-media Green’s functions, aims to obtain novel insight into the effect of ML on performance via a spectral-domain analysis. The work includes the development of a dedicated modelling high-frequency tool, followed by full-wave validation and comparison with experimental measurements.

Supervisory team: Prof. N. Llombart, M. Xargay (PhD)

Requirements

All following courses:

EE4C05    Electromagnetics    
EE4510    Advanced Electromagnetics    
EE4725    Quasi Optical Systems    
EE4620    Spectral Domain Methods in Electromagnetics    

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Last modified: 2026-04-13