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Giovanni Mangraviti
Researcher at Katholieke Universiteit Leuven
Publications - 45
Citations - 606
Giovanni Mangraviti is an academic researcher from Katholieke Universiteit Leuven. The author has contributed to research in topics: CMOS & Phase noise. The author has an hindex of 10, co-authored 42 publications receiving 432 citations. Previous affiliations of Giovanni Mangraviti include STMicroelectronics & IMEC.
Papers
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Proceedings ArticleDOI
A low-power radio chipset in 40nm LP CMOS with beamforming for 60GHz high-data-rate wireless communication
V. Vidojkovic,Viki Szortyka,Khaled Khalaf,Giovanni Mangraviti,Steven Brebels,W. Van Thillo,Kristof Vaesen,Bertrand Parvais,Vadim Issakov,M. Libois,M. Matsuo,John R. Long,Charlotte Soens,Piet Wambacq +13 more
TL;DR: The link budget of multi-Gb/s wireless communication systems around 60GHz improves by beamforming, and the sliding-IF architecture of [3] uses RF phase shifting, which deteriorates noise performance.
Proceedings ArticleDOI
A low-power 57-to-66GHz transceiver in 40nm LP CMOS with −17dB EVM at 7Gb/s
V. Vidojkovic,Giovanni Mangraviti,Khaled Khalaf,Viki Szortyka,Kristof Vaesen,Wim Van Thillo,Bertrand Parvais,M. Libois,Steven Thijs,John R. Long,Charlotte Soens,Piet Wambacq +11 more
TL;DR: A digital LP 40nm CMOS 60GHz transceiver (TRX) IC is presented that obtains an EVM better than -17dB in all 4 channels and helps to improve the mm-Wave circuit performance.
Journal ArticleDOI
Digitally Modulated CMOS Polar Transmitters for Highly-Efficient mm-Wave Wireless Communication
Khaled Khalaf,V. Vidojkovic,Kristof Vaesen,Michael Libois,Giovanni Mangraviti,Viki Szortyka,Chunshu Li,Bob Verbruggen,Mark Ingels,Andre Bourdoux,Charlotte Soens,Wim Van Thillo,John R. Long,Piet Wambacq +13 more
TL;DR: A polar transmitter (TX) is implemented at 60 GHz, enabling a power amplifier (PA) to operate in saturation where efficiency is highest, even when handling higher order modulations such as QPSK and 16-QAM.
Proceedings ArticleDOI
13.5 A 4-antenna-path beamforming transceiver for 60GHz multi-Gb/s communication in 28nm CMOS
Giovanni Mangraviti,Khaled Khalaf,Qixian Shi,Kristof Vaesen,Davide Guermandi,Vito Giannini,Steven Brebels,Fortunato Frazzica,Andre Bourdoux,Charlotte Soens,Wim Van Thillo,Piet Wambacq +11 more
TL;DR: The 57-to-66GHz TRX IC presented in this paper, whose architecture is depicted in Fig. 13.5.1, uses direct conversion and analog baseband beamforming, which is inherently simpler than superheterodyne and does not have to cope with the image frequency.
Journal ArticleDOI
A 28-GHz SOI-CMOS Doherty Power Amplifier With a Compact Transformer-Based Output Combiner
Zhiwei Zong,Xinyan Tang,Khaled Khalaf,Dongyang Yan,Giovanni Mangraviti,Johan Nguyen,Yao Liu,Piet Wambacq +7 more
TL;DR: A new transformer-based series output combiner design method to achieve a true-Doherty load modulation that uses a compact footprint and is suitable for the integration purpose of future 5G multiple-input multiple-output (MIMO) and phased-array applications.