CWTe - TU/e CWTe bi-monthly colloquium/webinar - Tuesday 3rd June 2025

Wanneer:

3 juni 2025

16:00 uur - 16:30 uur

Locatie:TU/e Campus Eindhoven
Building Flux 4.251 and online

Organisator:Telecommunicatie

Kosten KIVI member:Gratis

Kosten Non KIVI member:Gratis

Kosten Students:Gratis

Please be invited for the 3rd June 2025 edition of the Center for Wireless Technology (CWTe) bi-monthly colloquium webinar.

CWTe will have two speakers in this colloquium/webinar on interesting wireless topics:

Howard Benn (Benn Consulting Ltd) – ETSI and 3GPP Standards
Kaijie Ding (TU/e) - A 60-GHz Positive-Feedback-Based Transmitter Front-End with 22.8% PAEmax in 28-nm Bulk CMOS for Inter-Satellite Communications

As Howard is visiting CWTe from abroad, its strongly encourage live participation.

ETSI and 3GPP standards by
Howard Benn (Benn Consulting Ltd)

Abstract: Technology standards can appear overwhelming to many students. ETSI and 3GPP standards are available for free, along with access a plethora of information around the structure of the committees, access to millions of input contributions, and a process that can appear confusing to newcomers. This talk will provide an introduction to standards, show some real-life examples and explain how to access one the greatest sources of technical information. To keep you awake I will throw in some of stories from my 30 years creating all those Gs that fuelled the technologies in our mobile phones.

Biography: Howard is an independent consultant working in the field of technology standards. He started his career back in 1982, did his degree and PhD at Bradford University, moving into radio based communications in 1989. Standards work started in ETSI on GSM (SMG2) in 1993, then helping create 3GPP and chairing 3GPP RAN 4 from 1998 to 2007. A board member of ETSI 2008 to 2023, currently a member of a number of advisory boards for UK universities and research programs. He retired from his role as ‘Vice President Communications Research’ for Samsung Electronics R&D Institute in 2024, but maintains his visiting Professor at Bristol University and Honorary Professor at QUB roles. He also sits on the UKTIN government advisory committee looking at the future of communications technology in the UK, and co-chairs the standards group.

A 60-GHz Positive-Feedback-Based Transmitter Front-End with 22.8% PAEmax in 28-nm Bulk CMOSfor Inter-Satellite Communications by
Kaijie Ding (TU/e)

Abstract: This work presents a power and area efficient 60-GHz RF-beamforming transmitter front-end (TXFE) in 28-nm bulk CMOS for inter-satellite communications. It consists of a vector modulator (VM) for phase shifting and gain control, a driver, and a power amplifier (PA). By applying a gain-boosting technique based on positive feedback, the number of cascaded stages is minimized, which reduces the total power consumption and enables chip area saving. Measurement results demonstrate a peak gain of 25.2 dB at 61 GHz, with a 22.6% maximum power-added efficiency (PAE_max) and a 12.4-dBm saturated output power (P_sat). The minimum stability factor (K_f) is 1.5. Additionally, at 61 GHz, this TXFE supports 2.4-Gbps SC/400-MHz OFDM 64 QAM, achieving 5.6/5.3% Error Vector Magnitude (EVM) and -31.4/-30.8-dBc Adjacent Channel Power Ratio (ACPR), at 5.1/3.7-dBm output power (P_out) with 7.4/5.2% TX efficiency. The core area is 0.66×0.27 mm².

Biography: Kaijie Ding received his Bachelor, Master, and PhD degrees from Zhejiang University, China (2018), TU Eindhoven, Netherlands (2019), and TU Eindhoven, Netherlands (2024), respectively. Since December 2023, he has been working as an analog RF IC researcher at Imec, Netherlands. His research primarily focuses on RF and mm-wave integrated circuit design.