Publications by authors named "Tian Hong Loh"
Article Synopsis
- - This paper surveys the latest advancements in UAV-based antennas and propagation measurements, emphasizing the flexibility and cost-effectiveness of UAVs for electromagnetic field assessments across various applications, including large-scale antenna testing for 5G/6G networks.
- - It discusses the technical challenges, such as positioning accuracy and antenna alignment, while examining factors that contribute to measurement inaccuracies (0.5 to 1 dB), including GPS errors, UAV vibrations, and ground reflections.
- - The study highlights simulations conducted to understand propagation losses in UAV-to-ground links and concludes with recommendations for future research to enhance the accuracy of antenna measurements and optimize UAV capabilities in this field.
This paper proposes a novel System-in-Package (SiP) integrated architecture that incorporates Silicon-On-Insulator (SOI) switches and Surface Acoustic Wave (SAW) filters within the chip, aiming to fulfill the demands for miniaturization and multi-functionality for application in emerging wireless technologies. The proposed architecture not only reduces the integration complexity but also considers the architectural design of the integrated module, impedance matching techniques, and signal integrity for carrier aggregation (CA) technology realization. The feasibility of employing SOI switches and SAW filters based on SiP design has been validated through the trial production of a Sub-3GHz radio frequency (RF) front-end diversity receiver module.
View Article and Find Full Text PDFMinimized Triple-Band Eight-Element Antenna Array for 5G Metal-frame Smartphone Applications.
Micromachines (Basel)
January 2022
A multiple-input-multiple-output (MIMO) antenna array for triple-band 5G metal-frame smartphone applications is proposed in this paper. Each single antenna element consists of an S-shaped feeding strip and an L-shaped radiation strip on the metal frame. The dimension of the antenna element is only 6.
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