Public Research Seminar by Microelectronics Thrust, Function Hub, HKUST (GZ)

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Frequency Matter and Frequency Matters: Millimeter-Wave Integrated Circuits for Ubiquitous Sensing and Communication

2:00pm - 3:00pm
ZOOM (ID: 968 0584 1496; Password: 933601)

Millimeter-wave (mm-wave) on-chip radar and communication systems are elevating our society onto a new intelligence level by enabling robust machinery sensing and enhancing social connections. The wide frequency bandwidth available at mm-wave regime nourishes high data-rate communications at (beyond) 5G, and promotes the fine-resolution radars in emerging applications like automotive driving assistance, vital signs monitoring, gesture recognition, etc. The fulfillment of these visions demands for technology advancements in mm-wave integrated circuits and systems.

Starting from the integrated radar systems, this talk will analyze the performance requirements and challenges that are posed on the mm-wave transceiver design. I will present a new architecture for mm-wave phase-locked loops (PLLs) that suits such applications. By introducing the concept of implicit frequency multiplication, phase noise and power efficiency is substantially improved. The advantages will be examined by a digital PLL that employs the new architecture. Furthermore, we will discuss approaches to minimize the phase noise towards thermal noise limitation. They include flicker noise reduction in mm-wave oscillators and fine-resolution digital-to-time converters for phase detection in PLLs. Moving to the transceiver frontend, I will present a wideband mm-wave power amplifier with stability enhancement. Finally, I will show a supply-resilient oscillator design that can be directly supplied by power management circuits without any voltage regulator for energy-efficient wireless sensor networks.

日期
時間
2:00pm - 3:00pm
地點
ZOOM (ID: 968 0584 1496; Password: 933601)
講者/ 表演者:
Dr Zhirui ZONG
NXP Semiconductors

Zhirui Zong received the Ph.D. degree in microelectronics from Delft University of Technology, Delft, The Netherlands, in 2019, and the B.Eng. degree (Hons.) in electronic and information engineering from University of Electronic Science and Technology of China (UESTC), Chengdu, China, in 2012.

Since 2018, he has been a Senior Analog RF IC Designer and technical lead with NXP Semiconductors, Eindhoven, The Netherlands. His current research interests include frequency synthesis techniques and mm-wave/RF/mixed-signal integrated circuits for radars and wireless/wireline communications.

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Function Hub, HKUST(GZ)
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