Prof. Duixian Liu (IBM Thomas J. Watson Research Center) előadása

2023. október 25.

Prof. Duixian Liu (IBM Thomas J. Watson Research Center) előadása

2023. október 25-én

Scalable Millimeter-wave Phased Arrays: Challenges and Solutions

Prof. Duixian Liu a mikrohullámú áramkörök, antennák elismert professzora tart előadást a milliméter hullámsávú fázisvezérelt antennarendszerek tervezési kihívásairól és megoldásairól 2023. október 25-én az IB023 teremben 15 órai kezdettel.

Abstract
Advances in Si-based millimeter-wave circuit design, Si-based phased arrays, and low-cost antenna integration techniques have enabled the development of scalable phased arrays supporting 10s to 100s of elements. Si-based scalable phased arrays now operate from 28-GHz to 100-GHz frequency range. Fabricated scalable phased array modules with multiple ICs can have up to 64 dual-polarized antenna elements. The general scaling approach relies on the commonly adopted schemes. Commercial applications of millimeter-wave technology such as 5G, backhaul, and automotive sensor systems will provide further demand for scalable phased arrays in years to follow. Open problems and opportunities remain to improve phased array performance, robustness, and cost. Key areas of potential research in this area include (1) development of new millimeter-wave package and antenna implementation and assembly techniques for improved yield and manufacturability, (2) co-integration of Si and III-V based ICs at the module level, (3) development of module-level design for testability techniques, and (4) further development of digital design and RF-digital co-design approaches to enable adaptability and agility. This talk discusses the need for scalable phased arrays and outlines key challenges for their implementation. Design trade-offs are discussed for important aspects such as beamforming architecture, module-level realization with antennas and packaging, and digital control. Two types of recently introduced scaled 64-element dual polarized phased array designs from our group are reviewed as implementation examples. (1) A phased array operating at 28-GHz supporting 5G base station applications, and (2) TX and RX phased arrays operating at 94-GHz suitable for backhaul and imaging applications. An outlook for future opportunities with phased array scaling is provided.

Duixian Liu received the B.S. degree in electrical engineering from XiDian University, Xi’an, China, in 1982, and the M.S. and Ph.D. degrees in electrical engineering from the Ohio State University, Columbus, in 1986 and 1990, respectively.

Dr. Liu is a Fellow of IEEE, and was an associate editor for the IEEE Transactions on Antennas and Propagation (2005-2013), a Guest (Track) Editor for the IEEE Transactions on Antennas & Propagation special issues on Antennas and Propagation Aspects of 60-90 GHz Wireless Communications (October 2009), Antennas and Propagation at mm- and sub mm-waves (April 2013),Antennas and Propagation Aspects of 5G Communications (October 2017), and
for the IEEE AWPL for a Special Cluster Antenna-in-Package, Antenna-on- Chip, Antenna-IC Interface: Joint Design and Co-integration Aspects (2019), the Lead Guest Editor for International Journal of Antennas and Propagation on special issues on Wearable and RFID Antennas (July 2013). He has been an organizer or chair for numerous international conference sessions or special
sessions and served as a technical program committee member for many international conferences. He was the general chair of the 2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials, White Plains, New York. He has served as an external Ph.D. examiner for several universities and external examiner for government organizations on research grants. He has been invited to give talks on mmWave
and antenna-in-package designs to universities and IEEE local chapters in USA, Canada, Sweden, the Netherlands, Singapore, Japan, Taiwan, Pakistan, India, China, Israel, UAE, and Saudi Araba, and organizations such as the FCC Technological Advisory Council (TAC) Antenna Technology Working Group, National Science Foundation and the European Patent Office. He is a distinguished lecturer of the IEEE Antennas and Propagation Society (AP-S) for the period of 2020-2023 and the current AP-S Field Award Subcommittee Chair.

« Összes esemény