9 papers
Low loss superconducting resonators enabled by aluminum microstructural engineering and dielectric trimming
Mahmoud Almansouri, Umar T. F. Alhuwaymel, Ibraheem AlYousef +5
Material losses in superconducting circuits fundamentally limit qubit coherence times and resonator quality factors. Most research efforts focus on mitigating losses at circuit int…
Millimeter-Wave RIS: Hardware Design and System-Level Considerations
Ruiqi Wang, Pinjun Zheng, Yiming Yang +6
Reconfigurable intelligent surfaces have emerged as a promising hardware platform for shaping wireless propagation environments at millimeter-wave (mm-Wave) frequencies and beyond.…
3-D Reconfigurable Intelligent Surface: From Reflection to Transmission and From Single Hemisphere to Full 3-D Coverage
Ruiqi Wang, Yiming Yang, Atif Shamim
Reconfigurable intelligent surfaces (RIS) are conventionally implemented as two-dimensional (2D) electromagnetic (EM) structures to steer incident waves toward desired reflection a…
A 100-GHz CMOS-Compatible RIS-on-Chip Based on Phase-Delay Lines for 6G Applications
Xiarui Su, Xihui Teng, Yiyang Yu +2
On-chip reconfigurable intelligent surfaces (RIS) are expected to play a vital role in future 6G communication systems. This work proposed a CMOS-compatible on-chip RIS capable of…
Reconfigurable Antennas for 6G: Technologies, Prototypes, Architectures, and Signal Processing
Pinjun Zheng, Ruiqi Wang, Yuchen Zhang +4
The transition to sixth-generation (6G) networks calls for wireless transceivers with enhanced adaptability and efficiency. Reconfigurable antennas (RAs) have emerged as a promisin…
Electromagnetically Reconfigurable Fluid Antenna System for Wireless Communications: Design, Modeling, Algorithm, Fabrication, and Experiment
Ruiqi Wang, Pinjun Zheng, Vijith Varma Kotte +5
This paper presents the concept, design, channel modeling, beamforming algorithm development, prototype fabrication, and experimental measurement of an electromagnetically reconfig…