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Control of the sensitivity of CRLH interdigital microstrip balanced structures using a co-design genetic algorithm approach

Abstract : A fully automated tool for designing CRLH interdigital microstrip structures using a co-design synthesis computational approach is proposed and demonstrated experimentally. This approach uses an electromagnetic simulator in conjunction with a genetic algorithm to synthesize and optimize a balanced CRLH interdigital microstrip transmission line. The high sensitivity of a long balanced transmission line to fabrication tolerances is controlled by the use of a high precision 3D simulator. The 2.5D simulator used was found insufficient for a large number of unit cells. A 13 UC CRLH transmission line is designed with the proposed approach. The response sensitivity of the balanced transmission lines to the over/under-etching factor is highlighted by comparing the measurements of four lines with different factors. The effect of over/under-etching is significant for values larger than 10 μm.
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https://hal.inria.fr/hal-01023139
Contributor : Valence Lcis <>
Submitted on : Friday, July 11, 2014 - 3:12:57 PM
Last modification on : Friday, November 6, 2020 - 4:36:58 AM

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Romain Siragusa, Etienne Perret, Hoang Van Nguyen, Pierre Lemaitre-Auger, Smail Tedjini, et al.. Control of the sensitivity of CRLH interdigital microstrip balanced structures using a co-design genetic algorithm approach. Applied physics. A, Materials science & processing, Springer Verlag, 2011, 103 (3), pp.709-714. ⟨10.1007/s00339-010-6205-z⟩. ⟨hal-01023139⟩

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