4 papers
Exposure-Aware Beamforming for mmWave Systems: From EM Theory to Thermal Compliance
Zihan Zhou, Ang Chen, Yunfei Chen +2
Electromagnetic (EM) exposure compliance has long been recognized as a crucial aspect of communications terminal designs. However, accurately assessing the impact of EM exposure fo…
NN-Based Joint Mitigation of IQ Imbalance and PA Nonlinearity With Multiple States
Yundi Zhang, Wendong Cheng, Li Chen
Joint mitigation of IQ imbalance and PA nonlinearity is important for improving the performance of radio frequency (RF) transmitters. In this paper, we propose a new neural network…
Beyond Traditional Coherence Time: An Electromagnetic Perspective for Mobile Channels
Zihan Zhou, Li Chen, Ang Chen +1
Channel coherence time has been widely regarded as a critical parameter in the design of mobile systems. However, a prominent challenge lies in integrating electromagnetic (EM) pol…
A Data-Driven Adaptive Impedance Matching Method Robust to Parasitic Effects
Wendong Cheng, Li Chen, Weidong Wang
Adaptive impedance matching between antennas and radio frequency front-end (RFFE) power modules is essential for mobile communication systems. To address the matching performance d…