High-impedance electromagnetic surfaces with forbidden bands at radio and microwave frequencies

Daniel F. Sievenpiper; Lixia Zhang; R. Broas; Eli Yablonovitch

doi:10.1117/12.370159

12 November 1999 High-impedance electromagnetic surfaces with forbidden bands at radio and microwave frequencies

Daniel F. Sievenpiper, Lixia Zhang, R. Broas, Eli Yablonovitch

Proceedings Volume 3795, Terahertz and Gigahertz Photonics; (1999) https://doi.org/10.1117/12.370159
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

A new type of metallic electromagnetic structure has been developed that is characterized by having high surface impedance. The geometry is analogous to a corrugated metal surface in which the corrugations have been folded up into lumped circuit elements, and distributed in a 2D lattice. Although it is made of continuous metal, and conducts DC currents, it does not conduct AC currents within a forbidden frequency band. Unlike normal conductors, this new surface does not support propagating surface waves. Furthermore, image currents induced in the surface are not phase reversed as they are on a flat metal surface.

Citation Download Citation

Daniel F. Sievenpiper, Lixia Zhang, R. Broas, and Eli Yablonovitch "High-impedance electromagnetic surfaces with forbidden bands at radio and microwave frequencies", Proc. SPIE 3795, Terahertz and Gigahertz Photonics, (12 November 1999); https://doi.org/10.1117/12.370159

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