Mr. Ruipeng Liu

Wideband, high-gain array antennas are crucial for 5G/6G millimeter-wave communication systems. Among the factors determining their performance, the loss of the feeding network directly influences the maximum achievable gain of the array. As a novel 3D heterogeneous integration platform, the integrated suspended line (ISL) employs a quasi-planar, multi-layer architecture. Its unique cavity-embedded design effectively enhances the gain and radiation efficiency of array antennas. To address the challenges of minimizing feeding network loss, expanding the bandwidth of slot array antennas, and increasing the gain of magnetoelectric (ME) dipole arrays, this dissertation leverages the multi-layer vertical interconnection structure and cavity coupling mechanism of the ISL. Separate designs for the feeding and radiating structures are conducted, leading to the proposal of several innovative design methodologies. These include techniques for broadening the bandwidth of slot antennas and reducing the feeding network loss in ME dipoles. Based on the proposed theoretical frameworks, a variety of wideband, high-gain slot array antennas and ME-dipole array antennas have been developed.

Biography:

Ruipeng Liu was born in Luoyang, China. He received the M.S. degree in electronics science and technology from Hebei University of Technology, Tianjin, China, in 2021. He is currently pursuing the Ph.D. degree with the School of Microelectronics, Tianjin University, Tianjin. His current research interests include substrate-integrated suspended line (SISL) antennas, wideband antennas, and millimeter wave arrays.