Design and optimization of uniplanar EBG structures

Issue title: Selected Papers from the 15th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2011)

Article type: Research Article

Authors: Assimonis, S.D.^a | Yioultsis, T.V.^{a; *} | Rekanos, I.T.^b | Kriezis, E.E.^a | Antonopoulos, C.S.^a

Affiliations: [a] Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece | [b] Physics Division, School of Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece

Correspondence: [*] Corresponding author: T.V. Yioultsis, Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece. E-mail: traianos@auth.gr

Abstract: Electromagnetic bandgaps (EBG) are periodic formations, inspired by photonic crystals, exhibiting prohibited frequency bands for electromagnetic wave propagation. The uniplanar EBG is particularly assessed, due to its fabrication simplicity and is found to exhibit a propagation mode that cancels the desired bandgap behaviour. Two new planar EBG structures, without such modes are presented, retaining the distinct feature of easy fabrication, since the metallic structures are exclusively on the interface layers, with no vertical connections. The EBGs are optimized to maximize the bandgap, making them suitable for the design of wideband microwave circuits and antennas.

Keywords: Electromagnetic bandgaps, compact antennas, synthetic materials

DOI: 10.3233/JAE-2012-1519

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 39, no. 1-4, pp. 615-621, 2012