Scalable Millimeter-wave Phased Arrays: Challenges and Solutions

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 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.

Speaker(s): IEEE AP-S Distinguished Lecturer and IEEE Fellow Dr. Duixian Liu,

Agenda:
5:30pm: Networking and light refreshments;

6:00pm: Presentation;

7:30pm: Q&A and discussion;

Room: Rachel’s Private Dinning Room, Bldg: FREE parking at the Sheraton Garage, Sheraton Syracuse University Hotel and Conference Center, 801 University Avenue, Syracuse, New York, United States, 13210