报告摘要

Gradient index (GRIN) lens has attracted significant interest for its attractive properties, such as broadband, high gain and competitive efficiency at the band of millimeter wave. In this talk, based on gradient-index (GRIN) fiber concept, two types of dielectric lens antenna for beam-steering and imaging application are introduced respectively. The properties of beam-steering and high-resolution imaging for proposed lens antennas are analyzed based on ray tracing method and full-wave simulation. The prototype of proposed lenses can be fabricated by 3-D printing technique in a low-cost. Besides, the flexible beam-steering capability with switched-beam and subwavelength imaging resolution are measured and validated.

个人简介

Dr. Qiang Chen received the B.E. degree from Xidian University, Xi'an, China, in 1986, the M.E. and D.E. degrees from Tohoku University, Sendai, Japan, in 1991 and 1994, respectively. He is currently Chair Professor of Electromagnetic Engineering Laboratory with the Department of Communications Engineering, Faculty of Engineering, Tohoku University. His primary research interests include antennas, microwave and millimeter wave, electromagnetic measurement and computational electromagnetics. He served as the Chair of IEICE Technical Committee on Photonics-applied Electromagnetic Measurement, the Chair of IEICE Technical Committee on Wireless Power Transfer, the Chair of IEEE Antennas and Propagation Society Tokyo Chapter, the Chair of IEICE Technical Committee on Antennas and Propagation. Member of the Engineering Academy of Japan. IEICE Fellow.