Searched for: contributor%3A%22Cavallo%2C+D.+%28mentor%29%22
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Tapia Barroso, Roderick (author)
Future communication scenarios will require massive Multiple-input multiple-output (MIMO) by the use of multi-beam antenna systems. Maximizing the number of beams for a given antenna size is paramount given that the space allocated to the antenna is often limited. This work aims at evaluating the maximum number of beams by analyzing the SIR in...
master thesis 2023
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Coco Martin, Caspar (author)
Planar lenses based on metasurfaces or resonant elements are typically narrowband due to phase wrapping, which is strongly frequency-dependent. On the contrary, true-time-delay (TTD) planar lenses, which do not resort to phase wrapping, can achieve large bandwidths. One convenient way to design wideband TTD lenses is by means of artificial...
master thesis 2022
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van Wamel, Cas (author)
The interest for phased array antennas has increased over the past years along with the need for wide bandwidth arrays. Connected arrays are becoming more prevalent as a well suited solution to achieve the desired bandwidth. In order to increase the bandwidth and the scan angle of this type of array, horizontal artificial dielectric...
master thesis 2021
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CHEN, Zhuang (author)
Phased arrays have emerged as a key solution for 5G base stations, to provide higher capacity by means of directive and electronically steerable beams. However, the implementation of workable low-cost antenna arrays for base stations is very challenging, because of the requirements on the total frequency and angular coverage of 5G systems. When...
master thesis 2021
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Tirband Dastgerdi, Cyrus (author)
To solve extant complications with standard wafer-probing techniques, such as probe-to-probe coupling and probe-tip deterioration, a novel probe tip device has been designed and verified by means of 3D EM-simulation for the 220-325 GHz frequency band. The new probing technique uses an on-wafer cavity-backed slot to couple the signal to a tapered...
master thesis 2019
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van Katwijk, Sander (author)
master thesis 2019
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van Schelven, Ralph (author)
Typical antenna arrays are designed such that the active element pattern is symmetric around the broadside direction. However, applications exist, for example in satellite communication, where a symmetric pattern is not needed or even unwanted. This angular selectivity can be achieved using asymmetric elements. However, it is known that for well...
master thesis 2017
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Cantika Felita, Cantika (author)
In this work, the analytical models to describe artificial dielectric layers (ADLs), when a lateral shift between layers is present, is presented. The alternate lateral displacement between layers is an important parameter to engineer the desired effective electromagnetic properties of the equivalent homogeneous material realized with the ADLs....
master thesis 2017
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Pascual Laguna, A. (author)
The work of this thesis has been carried out in the framework of the project Multi-Object Spectrometer with an Array of superconducting Integrated Circuits, also known as MOSAIC. The aim of this instrument is to resolve the Cosmic Infrared Background (CIB) from a 10 m diameter ground-based telescope. MOSAIC will be the first multi-object three...
master thesis 2016
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Zhu, W. (author)
master thesis 2015
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