Metamaterial-Inspired Small Antennas and Multiband Antennas

Jiang Zhu

The Edward S. Rogers Sr. Department of Electrical and Computer Engineering (Electromagnetics)

Abstract:

The development of next-generation wireless communication systems requires broadband and multiband antennas for faster data transfers. The design trend of such antennas is toward the miniaturization and simultaneously high efficiency and low cost. Transmission-line metamaterials (TL-MTM) provide a conceptual route for implementing small resonant antennas. However, typically TL-MTM antennas suffer from narrow bandwidths. In this presentation, several fully-printed MTM-inspired antennas are introduced, which aim to address some of these problems. These antennas include a compact zeroth-order index TL-MTM antenna with extended bandwidth, a compact tri-band antenna with single cell metamaterial-loading and a dual-band electrically small antenna for WiFi applications. In the end, a simple technique for reducing the mutual coupling of two closely-spaced MTM small antennas is also included in this presentation.

Biography:

Jiang Zhu received the B.Eng. Degree in Information Science and Electronic Engineering from Zhejiang University, China, in 2003, and M.A.Sc. Degree in Electrical Engineering at McMaster University, Canada, in 2006. He is working towards the Ph.D. degree at University of Toronto with Professor Eleftheriades since 2006. His research interests are electromagnetic metamaterials, small antennas, multiband/multifunction antennas, RF/microwave circuits, computer-aided design for microwave/RF circuits, and microwave imaging.