Y. P. Zhang

TL;DR: Antenna-on-chip (AoC) and antenna-in-package (AiP) solutions are studied for highly integrated millimeter-wave (mmWave) devices in wireless communications and the systems level pros and cons are highlighted from the electrical and economic perspectives for system designers.

TL;DR: The coupling from the in-package antenna to the on-chip inductor is lower than 30 dB for the worst case and shows the feasibility and promise of the elegant AiP technology for emerging high-speed short-range 60-GHz wireless communications.

TL;DR: In this article, experimental results of radio propagation in two underground coal mines were reported, and the authors believe that microcellular radio communications systems are feasible in coal mines based on these results, and they also use a hybrid tunnel propagation model consisting of the free space propagation model and the modified waveguide propagation model.

TL;DR: In this paper, a right-angle wedge with different impedance boundary conditions at its two surfaces is considered, where a functional transformation is used to simplify the boundary conditions, and the eigenfunction solutions for the transformed functions are replaced by integral representations, which are then evaluated by the modified Pauli-Clemmow method of steepest descent.

TL;DR: In this article, a high-gain microstrip grid array antenna (MGAA) for 24 GHz automotive radar sensor applications is proposed and an amplitude tapering technique utilizing variable line width on the individual radiating element is then applied to lower sidelobe level.