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RF Communication Circuits KU Leuven
© 2009 by Taylor & Francis Group, LLC. During the last decade of last century, the world of wireless communications started to grow rapidly. Today, cellular handsets are the largest consumer market in the world. The main trigger was the introduction of digital coding and digital signal processing in wireless communications. The aggressive scaling of CMOS process technology driven by the memory and microprocessor market made CMOS a logical ...
MORPHIC : programmable photonic circuits enabled by silicon photonic MEMS Universiteit Gent
In the European project MORPHIC we develop a platform for programmable silicon photonic circuits enabled by waveguide-integrated micro-electro-mechanical systems (MEMS). MEMS can add compact, and low-power phase shifters and couplers to an established silicon photonics platform with high-speed modulators and detectors. This MEMS technology is used for a new class of programmable photonic circuits, that can be reconfigured using electronics and ...
Embedded Deep Learning - Algorithms, Architectures and Circuits for Always-On Neural Network Processing KU Leuven
Although state-of-the-art in many typical machine-learning tasks, deep learning algorithms are very costly in terms of energy consumption, due to their large amount of required computations and huge model sizes. Because of this, deep learning applications on battery constrained wearables have only been possible through wireless connections with a resourceful cloud. This setup has several drawbacks. First, there are privacy concerns. Cloud ...
Design of Wideband CMOS Building Block Circuits for Receivers from 0.5 up to 4 GHz KU Leuven
This thesis has been focused on the design of wideband circuits for multi-band/multi-standard receivers. Three projects have been developed during this Ph.D. and are presented in this thesis: the required specifications of a wideband spectrum-sensing receiver, two versions of a 130nm CMOS wideband low-noise variable gain amplifier, and a 40nm CMOS wideband high-IF receiver. The specifications of the spectrum-sensing receiver aim for the ...
Decentralized storage in combined heat distribution circuits Universiteit Antwerpen
In apartment buildings, collective heating networks have great energetic advantages. One form gaining more attention for the last decades is a combined heat distribution circuit (CHDC), in Belgium called “combilus”. It is a two-pipe system for the distribution of both space heating (SH) and domestic hot water (DHW). The supply temperature is set to the highest needed temperature, which is around 65°C for DHW (considering a temperature difference ...
From Circuits Towards Systems for 60 GHz CMOS Phased Arrays (Van schakelingen tot systemen voor 60 GHz CMOS phased arrays) KU Leuven
In the world of high-definition video and ever-growing data rates, it is reasonable to see 60 GHz technology as the next step in personal wireless communication. Scaling the CMOS technology has already been an enabler for multiple wireless technologies and it is still the main drive towards multi-Gbps transmission systems.The low cost of a single CMOS chip is, however, at the expense of lower performance of transistors working in the high ...
Time-Based Energy-Efficient Sensor Interface Circuits KU Leuven
A new electronic revolution is arising: the smart environment. This means that sensors and sensor systems are becoming ever more important in todays society, and at the same time are getting more and more networked. If all this will be realized, one can speak of real Cyber-Physical Systems and the Internet of Things. There are however still obstacles that need to be tackled for this to become a reality. In order to be able to massively deploy ...
Massive Parallel Readout Circuits for In-Vivo Signal Acquisition KU Leuven
Multi-electrode neural recordings are becoming standard practice in basic neuroscience research, and knowledge gained from these studies is beginning to enable clinical and neuroprosthetic applications. However, there is clear need from neuroscientists towards higher number of recording sites per given area, low-power dissipation, and wireless data connectivity to facilitate better and more accurate measurement of neural signals. In parallel, ...
Integrated radio front-end Circuits for 5G and 6G wireless application Vrije Universiteit Brussel
The fifth-generation (5G) wireless communication started its deployment to meet the increased global demands for high-quality connectivity in 2019, and its later generation,6G, will become present in any aspect of human and machine interactions. The radio frequency spectrum will be gradually expanded to millimeter-wave (mm-wave) ranges to satisfy the enhanced mobile broadband service. This Ph.D. work focuses on the design of mm-wave front-end ...