Design of Multi-decade Bandwidth Phased Array

Wideband phased arrays have become crucial components in advanced wireless systems for communications and radars, because they enable single systems to combine multiple functions or services, operate across multiple frequency bands, and achieve high-resolution radar performance.

Wideband phased arrays typically use a metallic backing reflector to achieve unidirectional radiation. A key limitation arises at the low-frequency end of the band, due to the small electrical distance from the metal. To extend the bandwidth, the backing reflector may be replaced with a wideband absorber. The presence of the absorber can enable huge operational bandwidths of more than one decade, at the expenses of reduced efficiency.

The goal of the project is to develop methods to synthesize ultrawideband absorbers, optimizing the trade-off between the bandwidth and the thickness. The design of the absorber by using lossy artificial materials or 3D printed magnetic materials will be also carried out.

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: 2025-11-26