Analyses of Beamspace MIMO Channels at 142GHz
This letter presents the analyses of a single-user beamspace multiple-input–multiple-output (MIMO) on measured indoor and outdoor channels at 142 GHz. The rank […]
6G Fresnel Spot Beamfocusing using Large-Scale Metasurfaces: A Distributed DRL-Based Approach
We propose a novel approach to smart spot-beamforming (SBF) in the Fresnel zone leveraging extremely large-scale programmable metasurfaces (ELPMs). A smart SBF […]
How many beams does sub-THz channel support
Antenna, radio frequency (RF) circuit, algorithm, and system researchers on sub-THz RF are interested in knowing characteristics of corresponding radio channels. Among […]
Spatial Interference Reduction by Subarray Stacking in Large Two-dimensional Antenna Arrays
This article proposes a systematic approach for stacking uniform linear arrays (ULAs) of different sizes to reduce sidelobes and form nulls to […]
Analyzing the Effects of PA Variations on the Performance of Phased Array Digital Predistortion
This paper shows how digital predistortion of a phased array can benefit from the parametric variations over parallel power amplifiers (PAs). Different […]
A four channel phased array transmitter using an active RF phase shifter for 5G wireless systems
This paper presents a four channel phased array transmitter at 15 GHz aimed for the upcoming 5G wireless systems. The circuit is […]