NDLI: Circuit Modeling of Huygens Surfaces

Content Provider	IEEE Xplore Digital Library
Author	Selvanayagam, M. Eleftheriades, G.V.
Copyright Year	2002
Abstract	Huygens surfaces are a recently proposed way of manipulating electromagnetic wavefronts using a superposition of subwavelength electric and magnetic dipoles situated on a plane. This allows for interesting phenomena such as refraction, beam manipulation, and focusing using this planar screen. In this letter, a circuit model for the unit cells comprising a Huygens surface is proposed to further understand the functionality of this screen. The equivalent circuit is a lattice network whose constituent series and shunt impedances correspond to the impedances of the magnetic and electric dipoles, respectively. We demonstrate that the corresponding voltage and current terminal relations across the lattice network correspond exactly to the electromagnetic boundary conditions across the Huygens surfaces. We also show how this model can be used to design the required unit cells and, using a two-dimensional circuit solver, how these lattice cells can be used to model an entire Huygens surface.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	1642
Ending Page	1645
Page Count	4
File Size	588896
File Format	PDF
ISSN	15361225
Volume Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Integrated circuit modeling Surface impedance Lattices Surface waves Impedance Magnetic circuits Equivalent circuits wavefront manipulation Boundary conditions equivalent circuits Huygens sources metasurfaces
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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