Publications by Frédéric Bongard

Experimental verification of broadband cloaking using a volumetric cloak composed of periodically stacked cylindrical transmission-line networks

Juan Ramon Mosig, Frédéric Bongard, Jean-François Zürcher

Cloaking using a volumetric structure composed of stacked two-dimensional transmission-line networks is verified with numerical simulations and measurements. The measurements are done in a waveguide, in which an array of metal cylinders is inserted causing ...

2009

Enhanced periodic structure analysis based on a multiconductor transmission line model and application to metamaterials

Juan Ramon Mosig, Frédéric Bongard, Julien Perruisseau-Carrier

We propose to model periodic structures by equivalent multiconductor transmission lines (MTLs). The developed technique is based on a multimodal representation of the periodic structure unit cell, such as required for periodically loaded MTLs and periodica ...

2009

Enhanced CRLH transmission line performances using a lattice network unit cell

Juan Ramon Mosig, Frédéric Bongard, Julien Perruisseau-Carrier

A novel topology for the composite right/left-handed transmission line (CRLH TL) is presented. This type of CRLH TLs has the advantage of exhibiting an all-pass behavior and a frequency-independent characteristic impedance, in the so-called balanced case. ...

Institution of Engineering and Technology2009

Integral-equation analysis of 3-D metallic objects arranged in 2-D lattices using the Ewald transformation

Juan Ramon Mosig, Ivica Stevanovic, Frédéric Bongard, Pedro Crespo Valero, Katarina Blagovic

We present a space-domain integral-equation method for the analysis of periodic structures formed by three-dimensional metallic objects arranged in a general skewed two-dimensional lattice. The computation of the space-domain Green's function is accelerate ...

2006

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Frédéric Bongard

Contribution to characterization techniques for practical metamaterials and microwave applications

Experimental verification of broadband cloaking using a volumetric cloak composed of periodically stacked cylindrical transmission-line networks

Enhanced periodic structure analysis based on a multiconductor transmission line model and application to metamaterials

Enhanced CRLH transmission line performances using a lattice network unit cell

Integral-equation analysis of 3-D metallic objects arranged in 2-D lattices using the Ewald transformation

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Experimental verification of broadband cloaking using a volumetric cloak composed of periodically stacked cylindrical transmission-line networks

Integral-equation analysis of 3-D metallic objects arranged in 2-D lattices using the Ewald transformation

Enhanced CRLH transmission line performances using a lattice network unit cell

Enhanced periodic structure analysis based on a multiconductor transmission line model and application to metamaterials

Contribution to characterization techniques for practical metamaterials and microwave applications