Investigation of Patch Antennas Based on Embedded Multiple PBG Structure

• Published in: IEEE photonics technology letters Vol. 20; no. 20; pp. 1685 - 1687
• Main Authors: Yue-Qun Zhou, Feng-Chao Yu, Ting-Gen Shen, Pei-Lai Ji, Ge, J., Jian-Feng Gen, Jing Len
• Format: Journal Article
• Language: English
• Published: New York IEEE 15.10.2008; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Boundaries; Communication satellites; Drilling; Electromagnetic (photonic) crystal; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waves; Finite difference method; Finite difference methods; gain; High gain; Optical losses; patch antenna; Patch antennas; Performance gain; Photonic band gap; Photonics; Propagation losses; return loss; Surface waves
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/LPT.2008.2003408

The method of finite-difference time domain was used, and characteristics of the patch antenna based on drilling air holes and embedding a metal boundary in the substrate were studied. The results indicate that the surface waves which propagate along the surface of the substrate can be suppressed by the multiple photonic band-gap structure because of its effect of forbidden band, that it can radiate most of electromagnetic waves' energy in the substrate significantly, and that it has lower return loss (Sll) compared to the conventional patch antennas. Thus, a high gain is attained, its performance is improved. Due to these advantages, the extending use of photonic crystal patch antennas in the areas of mobile communication, satellite communication, aviation, etc., is expected.