Analysis of photonic crystal and multi-frequency terahertz microstrip patch antenna

In this paper, two-dimensional photonic crystals working at terahertz (THz) frequency is analyzed, a multi-frequency terahertz microstrip patch antenna on photonic crystal substrate is presented and its electromagnetic wave propagation phenomenon is investigated. The proposed antenna can work at five frequency points' scope at terahertz frequency regions, and the radiation efficiency is as high as similar to 96%. The photonic crystal structure of the substrate is used to enhance the gain, directivity and radiation efficiency of the antenna. (C) 2013 Elsevier B.V. All rights reserved