Ultra Linear Low-loss Varactors & Circuits for Adaptive RF Systems (including an introduction to "stay and living in NL")

Speaker: Dr. Cong Huang (TU Delft)

Time and Date: 14:30-15:30, Apr. 19, 2013

Place: Room 369, Microelectronics Building, Zhangjiang Campus

 

 

Abstract

With the evolution of wireless communication systems, mobile phones are continuously being equipped with more and more functionality such as TV, GPS, internet, etc. Each function uses a different frequency band and transmission protocol, which entails a notorious lack of integration. To achieve a single radio line-up suitable for all communication purposes, a component that facilitates impedance and RF frequency tuning is required, which has to satisfy many different criteria, like being small, cheap, reliable, fast-switching, lossless and above all, distortion-free. Until very recently, semiconductor varactor-based tunable elements were still considered to be inappropriate for meeting the requirements of future adaptive radios, in terms of losses and distortion. In this presentation, Cong will share the knowledge about how to change this situation with his Ph.D. work.

 

 

Biography

Cong Huang was born in Shanghai, China, in 1980. He received the B.S. degree in microelectronics from Fudan University, Shanghai, China, in 2002, the M.Sc. degree (with honors) in microelectronics from Delft University of Technology, Delft, The Netherlands, in 2005, the M.Sc. degree in microelectronics from Fudan University, Shanghai, China, in 2005, and the Ph.D. degree from Delft University of Technology, Delft, The Netherlands, in 2010. Currently, he is working as a post doctor/assistant professor at Delft University of Technology, Delft, The Netherlands.

 

In 2001, he joined the Ferroelectric Material Laboratory, Fudan University, where he developed piezoelectric material based cantilevers for MEMS applications. In 2003, he joined the Laboratory of High Frequency Technology and Components (HiTeC), where he developed low phase-noise voltage-controlled oscillators for RF applications. Since 2006, he has been with the Electronics Research Laboratory (ELCA), Delft University of Technology, where he is involved with high-performance varactors for RF adaptivity and the development of RF integrated circuits (RFICs) for next-generation wireless systems. In 2010, Dr. Huang was recipient of the Else Kooi Prize (Dutch best Ph.D. thesis in microelectronics). In 2011, he was recognized for academic excellence and received a VENI grant from the Dutch Scientific Foundation (NWO).