Publicaties
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A smart suitcase with overmolded inkprinted dual-band antennas Universiteit Gent
Nowadays, the Internet of Things is continuously expanding, with more and more objects connected. The seamless integration of wireless communication systems into smart objects is possible thanks to ink-printed antennas. A smart suitcase is manufactured, where ink-printed antennas are overmolded into the plastic shell of the suitcase, during its production process. The result is a smart object where the antennas are fully integrated inside the ...
Ultra-wideband air-filled siw cavity-backed slot antenna with multipolarization reconfiguration Universiteit Gent
Air-filled substrate integrated waveguide (AFSIW) cavity-backed slot antenna topologies are promising candidates to address the specific design challenges posed by the Internet of Things (IoT). In this contribution, we demonstrate a new single-feed ultrawideband cavity-backed slot antenna with multipolarization reconfiguration by leveraging four quartets of PIN diodes in substrate-independent AFSIW technology for operation in the [5.15-5.85] GHz ...
A polynomial chaos stochastic model for 2D breast microwave scattering Universiteit Gent
A computational model that quantifies the statistical distributions of the electromagnetic field scattered by a breast with random variations in its complex permittivity profile is presented. It involves the construction of a sparse hyperbolically truncated polynomial chaos expansion for the scattered field at each receiving antenna with the modified cross-validation least-angle regression method and requires significantly less deterministic ...
Air-filled SIW technology for mass-manufacturable and energy-efficient terahertz systems Universiteit Gent
To accommodate the ever-growing data requirements in densely populated areas and address the need for high-resolution sensing in diverse next-generation applications, there is a noticeable trend towards utilizing large unallocated frequency bands above 100 GHz. To overcome the harsh propagation conditions, large-scale antenna arrays are crucial and urge the need for cost-effective, mass-manufacturable technologies. A dedicated Any-Layer High ...
Volume-surface integral equation solver for chiral media Universiteit Gent
A volume-surface integral equation solver is pro-posed to solve the transmission problem for systems containing domains occupied by chiral media. Homogeneous domains can be modelled by boundary element methods and inhomogenous regions can be modelled by volume element methods, resulting in a minimal number of degrees of freedom to describe the problem. This is achieved by introducing surface current densities on the boundary and contrast current ...
Substrate integrated coaxial line millimeterwave components manufactured in standard PCB Universiteit Gent
We propose a packaging technique for the intricate routing networks in millimeterwave (mmWave) applications based on substrate integrated coaxial lines (SICLs), to eliminate spurious feed network radiation that may influence the antenna array's radiation pattern. Next to a thorough comparison with grounded co-planar waveguides (GCPWs), a coaxial via transition and a novel packaged hybrid coupler are designed, fabricated and measured in the 28 ...
Cost-effective and power-efficient beamforming remote antenna units for millimeterwave distributed antenna systems Universiteit Gent
To support the most demanding new applications, beyond5G systems will more than ever rely on multi-antenna deployments and mm-wave spectrum. Unfortunately, due to its propagation properties, ultra-reliable high-data-rate mm-wave coverage seems elusive. Distributed antenna systems based on mm-wave-over-fiber constitute a strong candidate technology to unlock reliable mm-wave coverage, although the concept critically depends for a large part on ...