EIGER<sup>™</sup>: An open-source frequency-domain electromagnetics code

Johnson, William A.; Basilio, Lorena I.; Kotulski, Joseph D.; Jorgenson, Roy E.; Warne, Larry K.; Coats, R. S.; Wilton, Donald R.; Champagne, N.J.; Capolino, Filippo; Grant, James; Khayat, M.A.

doi:10.1109/aps.2007.4396249

Cited by 23 publications

(17 citation statements)

References 6 publications

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“…(For simplicity in the theoretical analysis, we consider only the real part of the PbTe permittivity.) All simulations are generated using an integral-equation, method-ofmoments code called EIGER T M [22].…”

Section: Dielectric Resonatorsmentioning

confidence: 99%

Perturbation Theory in the Design of Degenerate Rectangular Dielectric Resonators

Warne¹,

Basilio²,

Langston³

et al. 2012

PIER B

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Abstract-The design of resonators with degenerate magnetic and electric modes usually requires the ability to perturb one or both types of modes in order to induce alignment of magnetic and electric properties. In this paper perturbation theory is used to identify different types of inclusions that can be used to realize fundamentalmode degeneracy in a rectangular dielectric resonator and thus, can ultimately be used in the design of negative-index metamaterials. For reasons associated with fabrication in the infrared-frequency regime, rectangular resonator designs are of particular interest.

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Section: Dielectric Resonatorsmentioning

confidence: 99%

Perturbation Theory in the Design of Degenerate Rectangular Dielectric Resonators

Warne¹,

Basilio²,

Langston³

et al. 2012

PIER B

Self Cite

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“…The authors would like to thank the entire EIGER development team [2] for their various efforts beginning in the early 90's and continuing thru today. Over this type of code lifetime, the specific analytic and coding efforts provided by each are too many to list here but without them none of which these simulations would have been possible.…”

Section: Acknowledgementsmentioning

confidence: 99%

“…While that paper emphasizes fabrication and experimental results, it also includes a numerical validation check based on the EIGER electromagnetics simulation tool (the comparison shows favorable agreement). EIGER is a general purpose frequency-domain integral equation code that supports a variety of Green's functions (GFs), including 2D and 3D free space GFs, symmetry-plane GFs, periodic GFs, and layered media GFs [2,3]. While the choice of integral equations as a modeling tool may first appear to be the most complex choice, the strength of this method lies in the fact that code generality is realized on the development of the corresponding Green's functions.…”

Section: Introductionmentioning

confidence: 99%

EIGER™ development and application to an IR frequency-selective surface

Johnson

Basilio

Wilton

et al. 2008

2008 IEEE Antennas and Propagation Society International Symposium

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“…To model the response of a metallic trace we use these quantities in the thin-wire algorithm of the integral equation code EIGER [11,12] with the electric equivalent radius a e . The code solves the equation (which is the dual of the slot equation [13] and other wire antenna models [14])…”

Section: Modeling Of Wiresmentioning

confidence: 99%

“…If there is a substrate then 2ε 0 → (ε + ε 0 ) and a → a e . By representing the actual trace geometry near the gap in a three-dimensional static solution (we used a static version of EIGER (EIGER S) for this purpose [11]) we can find the actual local charge per unit length q and then determine the smaller correction f cyl to further improve the accuracy of this load.…”

Section: Local Nature Of Gap Capacitancementioning

confidence: 99%

Subcell Method for Modeling Metallic Resonators in Metamaterials

Warne¹,

Johnson²,

Basilio³

et al. 2012

PIER B

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Abstract-This paper describes a subcell modeling technique for metallic resonators where the actual metal traces are replaced by a thin wire having equivalent magnetic and electric radii, as well as an impedance per unit length. The formulas for these quantities in the case of rectangular traces are given. In addition, the gap of a split-ring resonator is replaced by a lumped load. The response of the resonator can then be modeled using thin-wire algorithms in an integral equation code. It is demonstrated that the number of unknowns and runtime can be reduced by factors of a thousand using the subcell models. This is particularly important in cases where metamaterial designs with tapered properties are encountered and periodic boundary conditions are not applicable, because with this simplification larger numbers of resonator cells can be handled.

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EIGER^™: An open-source frequency-domain electromagnetics code

Cited by 23 publications

References 6 publications

Perturbation Theory in the Design of Degenerate Rectangular Dielectric Resonators

Perturbation Theory in the Design of Degenerate Rectangular Dielectric Resonators

EIGER™ development and application to an IR frequency-selective surface

Subcell Method for Modeling Metallic Resonators in Metamaterials

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EIGER™: An open-source frequency-domain electromagnetics code

Cited by 23 publications

References 6 publications

Perturbation Theory in the Design of Degenerate Rectangular Dielectric Resonators

Perturbation Theory in the Design of Degenerate Rectangular Dielectric Resonators

EIGER&#x2122; development and application to an IR frequency-selective surface

Subcell Method for Modeling Metallic Resonators in Metamaterials

Contact Info

Product

Resources

About

EIGER^™: An open-source frequency-domain electromagnetics code

EIGER™ development and application to an IR frequency-selective surface